Search

Copyright of Acta Agronomica Sinica is the property of Crop Science Society of China and its content may not be copied or emailed to multiple sites or posted to a listserv without the copyright holder's express written permission. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.)

Copyright of Cotton Textile Technology is the property of Cotton Textile Technology Editorial Office and its content may not be copied or emailed to multiple sites or posted to a listserv without the copyright holder's express written permission. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.)

In order to achieve efficient extraction of flax fiber, supercritical CO2 technology and biological enzyme impregnation technology were combined to degum the waste flax straw. The extraction process of supercritical CO2 treatment thme, treatment temperature and treatment pressure was optimized by response surface design. The relationship between supercritical CO2 assisted enzymatic degumming process parameters and degumming effect was studied by orthogonal test with fiber residual gum rate, mass loss rate, breaking strength, diameter and fineness as detection indexes, and compared with traditional chemical degumming, compound enzyme degumming and simple supercritical CO2 degumming process. The results show that the optimum process of supercritical CO2-assisted enzymatic degumming was as follows; the treatment pressure was 18 MPa, the treatment temperature was 64 °C, the CO2 flow rate was 20 g/min, and the amount of composite enzyme was 8% (xylanase; β-mannanase; pectinase mass ratio was 4.4:2.3:1.3). The flax fiber was degummed for 40 min. Compared with other processes, it was found that the residual gum rate of flax fiber treated by supercritical CO2 system was small (14.45 %), the damage to cellulose was small, and the fiber strength (47.56 cN) was retained to a large extent, which basically met the spinning requirements. [ABSTRACT FROM AUTHOR]

In comparison to the traditional fibers, flax fiber has many features, i.e. high fracture strength, small tensile deformation, better bending and large torsion stiffness. Flax fiber cement-based materials are the civil engineer materials with the broad application prospects. The research statuses and the existing problems of cementbased materials with flax fiber were discussed from 3 aspects, i.e. the physical and chemical properties of flax fiber, the role of flax fiber on the behaviors of cement-based materials, the properties improvement of cement-based materials with flax fiber. Based on above investigation results, the following research directions were drawn: enhance the using of flax fiber to replace polypropylene fiber on cement-based materials; revel the long-term properties of cement-based materials with flax fiber at the wet conditions; build the damage model of flax fiber cement-based composite materials under the combined actions of three-axis stress and wet conditions; improve the application performance of cement-based composite materials with flax fiber through increasing itself strength of flax fiber and improving the interfacial adhesion between flax fiber and cement-based materials. [ABSTRACT FROM AUTHOR]

Based on the morphology structure and chemical composition of flax fiber, the factors affecting antibacterial property of flax fiber were analyzed. The effects of degumming, kinds of dyes and dye auxiliaries on the antibacterial property of flax fiber were summarized. The physical and chemical antibacterial finishing methods were summarized. It is considered that on the basis of antibacterial property of flax fiber, adding natural antibacterial agents, physical antibacterial finishing and plant dye dyeing can effectively reduce the loss of antibacterial components in the process of production and processing of flax fiber, and antibacterial property of flax fabric can be further improved. [ABSTRACT FROM AUTHOR]

Copyright of Chinese Journal of Oil Crop Sciences is the property of Oil Crops Research Institute of Chinese Academy of Agricultural Sciences and its content may not be copied or emailed to multiple sites or posted to a listserv without the copyright holder's express written permission. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.)

Copyright of Acta Agronomica Sinica is the property of Crop Science Society of China and its content may not be copied or emailed to multiple sites or posted to a listserv without the copyright holder's express written permission. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.)

Copyright of Cotton Textile Technology is the property of Cotton Textile Technology Editorial Office and its content may not be copied or emailed to multiple sites or posted to a listserv without the copyright holder's express written permission. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.)

The name "flax" is commonly used in various historical records of ancient China, and there have been continuous debates about the specific meaning of "flax". The "flax theorists" believe that due to climate characteristics, sesame cannot be introduced and cultivated in the northwest region of China, so "flax" inevitably refers to flax with better cold resistance. This paper maintains that the term "flax" in historical literature refers to sesame rather than flax. Meanwhile, archaeological achievements in the northwest region of China indicate that sesame may have spread to Xinjiang, China through Central Asia during the pre-Qin period, and have been active in the social and economic life of the northwest region for a long time since then. [ABSTRACT FROM AUTHOR]

[Objective] The superior high-generation lines with strong adaptability were screened by evaluating the adaptability, high yield and stability of flax to provide basis for improving identification and promotion of new varieties. [Method] In 2017 -- 2018, 12 advanced strains were planted in 9 pilot areas, including Lanzhou, Jingtai, Yuzhong, Qingshui, Dingxi, Zhangye, Baiyin, Pingliang and Zhenyuan. Plot yield was recorded after harvest, and yield was analyzed by combined variance and the Genstat GGE biplot model. [Result] The yield of 12 high-generation lines was highly significant in G, E and GE (P<0.01). GGE- biplot analysis of yield traits adaptability showed that 10287 (G4) was the most adaptable strain in Yuzhong, Qingshui, Dingxi, Pingliang and Zhenyuan. The most adaptable strain in Lanzhou and Jingtai was 99012-3(G10). The most adaptable strain in Baiyin and Zhangye was 988-KG11). The results of correlation among the pilots showed that there was a close positive correlation between Yuzhong, Pingliang and Zhenyuan, and a close positive correlation between Lanzhou, Jingtai, Dingxi, Zhangye and Baiyin. GGE-biplot analysis of high yield and stable yield showed that the cultivars with high and unstable yield were 200617-8 (G7), 09162 (G8), 99012-3 (G10) and 0523-2-1-3 (G12), and the cultivars with low and stable yield were 0354 (G1), 1SX98O369 (G2), 9894-4 (G3), Longyal3 (G5, CK), 0818-6-13 (G6) and 1SXQS3 (G9), the cultivars with unstable and low yield was 988-1 (Gil), and 10287 (G4) had high and stable yield. Jingtai and Lanzhou had the best discrimination and representativeness for the 12 high-generation lines. [Conclusion] GGE can intuitively display the results of multi-year high-generation lines test, and objectively evaluate the adaptability, high yield and stable yield of varieties as well as the representativeness and discrimination of the pilots. [ABSTRACT FROM AUTHOR]

Copyright of Chinese Journal of Oil Crop Sciences is the property of Oil Crops Research Institute of Chinese Academy of Agricultural Sciences and its content may not be copied or emailed to multiple sites or posted to a listserv without the copyright holder's express written permission. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.)

Copyright of Transactions of China Pulp & Paper is the property of China Pulp & Paper Magazines Publisher and its content may not be copied or emailed to multiple sites or posted to a listserv without the copyright holder's express written permission. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.)

Copyright of Wool Textile Journal is the property of National Wool Textile Science & Technology Information Center and its content may not be copied or emailed to multiple sites or posted to a listserv without the copyright holder's express written permission. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.)

CYP79 is a key enzyme in the synthesis of cyanogenic glycoside. However, there is no systematical study of CYP79 genes in flax. In this study, we identified CYP79 gene family in 9 crops including flax, and focused on the sequence characteristics, duplication events, collinearity, evolution, cis-acting elements and expression patterns of LuCYP79 genes. The results revealed that a total of 9, 9, 3, 2, 5, 7, 6, 16, and 4 CYP79 family members were identified in flax, pale flax, poplar, cassava, sesame, sorghum, soybean, grape, and rice, respectively. Phylogenetic analysis showed that the evolution of CYP79 genes was species-specific. LuCYP79 were distributed unevenly on four chromosomes and had 1-3 exons. The promoter region of LuCYP79 contained lots of elements involved in response to hormone and stress. 8 full-length DNA sequences and 5 full-length cDNA sequences of flax LuCYP79 genes were cloned. LuCYP79 proteins contained 282-565 amino acid residues with molecular weight of 31.56-62.86 kD, and isoelectric point of 5.84-9.14. All LuCYP79 members were hydrophilic protein and located in endoplasmic reticulum. There were five pairs of LuCYP79 genes with duplication events, accounting for 77.8% of all genes, and all the duplication genes underwent strong purification selection. Both LuCYP79-1 and LuCYP79-9 had homologous genes in Arabidopsis and cassava. The relative expression levels showed that LuCYP79 family members were tissue-specific and had different expression patterns under different genetic backgrounds. There were significantly different in the relative expression of LuCYP79-1, Lu-CYP79-7, LuCYP79-8, and LuCYP79-9 in the four cultivars. Moreover, correlation analysis showed that LuCYP79-1/LuCYP79-7 in 50 days flaxseed was significantly positively correlated with the concentration of cyanogenic glycosides in mature flaxseed. LuCYP79-7/LuCYP79-8 and (LuCYP79-7+LuCYP79-9)/LuCYP79-8 in 20 days flaxseed were significantly positively correlated with the concentration of cyanogenic glycosides in mature flaxseed, respectively. It was preliminarily speculated that they might be the key genes in the synthesis of cyanogenic glycoside in flaxseed. These results have positive significance for further elucidating the function of CYP79 proteins in flax and provide theoretical references for breeding flax varieties with low cyanogenic glycoside. [ABSTRACT FROM AUTHOR]

Copyright of Acta Prataculturae Sinica is the property of Acta Prataculturae Sinica Editorial Office and its content may not be copied or emailed to multiple sites or posted to a listserv without the copyright holder's express written permission. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.)

Copyright of Chinese Journal of Oil Crop Sciences is the property of Oil Crops Research Institute of Chinese Academy of Agricultural Sciences and its content may not be copied or emailed to multiple sites or posted to a listserv without the copyright holder's express written permission. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.)

As one of the first natural fibers cultivated and used by human beings, the flax fiber is known as the "queen of the plant fibers", due to its excellent performance, such as fast heat dissipation, high strength, anti-pest and mildew, and excellent breathability. Compared with the cotton fiber, the most commonly used fiber in textile industry, the flax fiber contains a higher content of lignin, hemicellulose, pectin and other colloidal and impurity components.These colloidal materials have adverse effects on the dyeing and finishing of the final/intermediate products.Degumming is a necessary step to obtain high quality flax fiber. The traditional chemical degumming method have caused heavy environment pollution and cellulose degradation. Thus, to develop a green and sustainable degumming method for flax fibers, an environmentally friendly method for flax degumming with low degradation of cellulose is established. Firstly, as the laccase mediator system (LMS) has excellent delignification ability, we established the laccase TEMPO system by using TEMPO as a small molecular mediator. Taking residual rate of lignin and fiber weight loss rate as the indicators, we discussed the effects of key factors including treatment temperature, pH value, bath ratio, time, laccase concentration, TEMPO concentration on the experimental results with single factor experiment. Secondly, we selected EDTA with appropriate concentrations to strengthen the effect of the laccase TEMPO system. We applied the EDTA-enhanced laccase/TEMPO system to the flax degumming in this study. We used EDTA to remove pectin from flax at first, so as to improve the accessibility of laccase to lignin, and to improve the lignin removal rate. We put forward a new idea of delignification by removing pectin. Experimental results showed that this system had an excellent degumming effect under the optimal process conditions (laccase of 1.5 U /mL, TEMPO of 0.2 g /L, EDTA of 20 mmol /L, a pH value of 4.0 and a bath ratio 1:20 at the temperate of 55 ℃ for 4 h).Under this condition, the lignin removal rate reached 56.74%, the pectin content decreased by 32.62%, the hemicellulose content decreased by 2.12%, the water-soluble matter content decreased by 54.42%, and the lipowax content decreased by 39.06%. Moreover, the gummy materials on the surface of the fiber were reduced, and the fiber fineness was significantly improved after the EDTA-enhanced laccase/TEMPO system treatment. In addition, the EDTA-enhanced laccase/TEMPO system had little damage to cellulose and maximized the retention of fiber strength. Although this system has a high removal rate of lignin, pectin and other substances in flax, the removal rate of hemicellulose which is one of the main components in degumming can not catch the standard. This may be due to the lack of reagents for hemicellulose degradation in the degumming formula, which needs to be improved in follow-up explorations. [ABSTRACT FROM AUTHOR]

In order to improve the mechanical properties of short flax fiber reinforced silicone rubber composites, flax short fiber/silicone rubber composite was prepared with flax short fiber as reinforcement and silicone rubber as matrix. The effects of the length and content of flax short fiber on the tensile elastic modulus of composites were studied. The results show that the reinforcing effect of flax short fibers with different length and content on silicone-rubber-matrix composites is different. The tensile elastic modulus of the composite is the highest and breaking strain is the lowest when the content of flax short fibers is 1.26% and the length of flax short fiber is 2.5 mm. In the process of industrial production, different effects can be achieved by controlling the length and content of flax short fiber to reinforce the silicone rubber matrix. [ABSTRACT FROM AUTHOR]

Copyright of Acta Prataculturae Sinica is the property of Acta Prataculturae Sinica Editorial Office and its content may not be copied or emailed to multiple sites or posted to a listserv without the copyright holder's express written permission. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.)

Copyright of Cotton Textile Technology is the property of Cotton Textile Technology Editorial Office and its content may not be copied or emailed to multiple sites or posted to a listserv without the copyright holder's express written permission. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.)

In order to explore the application of Aspergillus Niger in flax degumming, a short-time dipping method was used to degumming flax with Aspergillus Niger spore suspension as degumming solution, and the optimal conditions on the degumming were studied by degumming rate, weight loss rate and fiber splitting degree. The microscopic structure was characterized by light microscope. The study found that the suitable pH Value for the degumming of Aspergillus Niger by short-time dipping was 5.5, and the concentration of spore suspension was 107/mL. The addition of penetrant Bx and nitrogen source urea could promote degumming. Using Aspergillus Niger short-time dipping method for degumming, the degumming time is 60 h, the degumming rate of flax fiber can reach 34.79%, the weight loss rate is 13.46%, the splitting degree can reach 402 Nm, the fiber is fully dispersed, fiber surface is smooth and the gum is effectively removed. [ABSTRACT FROM AUTHOR]

In order to study the lightweight and environmental protection of automotive interior materials, flax fiber was selected as the reinforcement and epoxy resin as the matrix, which was prepared by vacuum assisted resin transfer molding. The preparation process of flax fiber reinforced epoxy resin composite and the biological chemical degumming process of flax were described in detail, the effects of the amount of flax fiber in the forming process and the modification treatment on the properties of flax fiber reinforced epoxy resin composites were analyzed, and the best process parameters were determined to obtain plates with good properties. The results show that when 30% flax fiber and 2. 5% silane coupling agent are used, the relevant mechanical indexes of flax fiber reinforced epoxy resin composites reach the best, and their tensile strength, flexural strength and compressive strength are 54. 32, 127. 19 and 211. 95 MPa respectively. [ABSTRACT FROM AUTHOR]

Copyright of Food Research & Development is the property of Food Research & Development Editorial Department and its content may not be copied or emailed to multiple sites or posted to a listserv without the copyright holder's express written permission. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.)

Copyright of Chinese Journal of Oil Crop Sciences is the property of Oil Crops Research Institute of Chinese Academy of Agricultural Sciences and its content may not be copied or emailed to multiple sites or posted to a listserv without the copyright holder's express written permission. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.)

Flax is one of the five major oil crops in China. However, the local planting areas are mostly mountainous and hilly landform, and the harvesting process is excessively dependent on manual operation. Due to the problems of high labor intensity and low rate of mechanized equipment for harvesting operation, the development process of flax industrialization in China is seriously restricted. At present, the flax harvest process is still dominated by segmented harvest, and the threshing material formed after flax harvest needs to be separated and cleaned to remove the impurities in the grain. According to different principles, grain separated process can be divided into vibration screening and pneumatic sorting. Discrete element modeling technology is an auxiliary research method widely used in vibration screening research, which can establish various material shapes in agricultural production. However, the existing research methods use the multi-spherical aggregation method to fit the shape of grain and stalks, which is different from the real material in structure. On this basis, in order to improve the shape reality of flax threshing material and reduce the simulation modeling error, based on the open source discrete element method framework, the non-spherical particles of different components of flax threshing material were established by using the super-quadric surface element method, and the multi-stage vibration screening process was simulated and experimentally studied. In this study, the distribution of materials on the screen surface of the first screen and the second screen, the percentage passing and impurity content of different materials were analyzed, and the experimental verification was carried out. Different shapes of flax threshing could be constructed by changing the parameters of the super-quadric control equation. According to the volume fraction of different components of flax threshing, 3 148 grains, 1 728 stems and 124 fruits were generated in the simulation, respectively. In order to facilitated the analysis of simulation data, the primary screen and the secondary screen were divided into three different data statistical areas. The vibrating screening process was mainly analyzed from the material distribution on the screen surface, the screening rate of different materials and the impurity content. The results showed that the non-spherical particles of super-quadric surface could well simulate the physical properties of real materials; The percentage passing of seed and short stalks in the first screen was 99.08% and 66.49%, respectively, and the whole fruit could be sorted; In the second screen, the percentage passing of seed and short stalks were 96.38% and 4.79%, respectively, and the short stalks could be sorted. The sorted material could migrate on the corresponding screen surface under the excitation, which was conducive to screening. The impurity contents of different materials were counted, including 4.87% for seed, 21.95% for short stalks and 3.38% for whole fruit. Then the simulation process was experimented and verified. The composition and quantity of flax thresher in the test were consistent with the simulation, and the different components were mixed evenly before the experiment. In addition, the equipment must be subject to idle commissioning before the threshing material were dumped into the first screen. After the experiment, counting the quantity of different materials from the bottom collecting tank to the first screen. The experiment results showed that the relative data deviations of percentage passing and impurity content of different components of flax threshing materials were less than 10%. Although the modeling method used in the study has good shape fitting degree for non-spherical particles, it still had some limitations, which were discussed in this study. The results showed that the non-spherical particles established by the super-quadric surface method could be applied to the simulation of non-spherical materials involved in different agricultural production process. [ABSTRACT FROM AUTHOR]

[Obj ective] The present paper aimed to study genetic variation of flower and leaf traits of flax, and to provide basis for germplasm innovation of flax. [Method] Genome-wide association analysis was used to detect SNP sites and candidate genes that were significantly associated with related traits in flax flowers and leaves. [Result] Among the 269 flax materials tested, the most ( 56. 50%) of petals were blue. The most corolla shape was pentagonal ( 42. 75%) . Most of the anthers were blue (86. 61 % ) . The most common leaf color was dark green (58. 73%) . Most of the leaves were lanceolate ( 56. 87%) . Genome-wide association analysis revealed 3 SNP and 8 candidate genes that were significantly associated with flax color. Lusl 0033621 ( pectinesterase) and Lusl 0007409 ( 13-galactoside) genes were involved in the regulation of flax color formation . There were 3 SNP loci significantly associated with corolla shape and 6 candidate genes, among which Lusl0000554 ( leucine-rich PPR motif) gene was closely related to corolla development. One SNP locus was found to be significantly associated with anther color of flax, and five candidate genes were identified. Lusl0010403 ( anthocyanin reductase) gene was directly involved in anthocyanin metabolism. One SNP locus and four candidate genes were detected, among which Lusl0005600 ( PPR motif protein rich in leucine) was involved in regulating leaf color formation. Three SNP loci significantly associated with leaf shape were detected, and five candidate genes were identified, among which Lusl 0033007 gene was involved in regulating the formation of leaf internal structure. [ Conclusion] Flax flowers and anthers are mainly blue. Genome-wide association analysis can detect key candidate genes for association between flowers and leaves. [ABSTRACT FROM AUTHOR]

Copyright of Acta Agriculturae Zhejiangensis is the property of Acta Agriculturae Zhejiangensis Editorial Office and its content may not be copied or emailed to multiple sites or posted to a listserv without the copyright holder's express written permission. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.)

Copyright of China Textile Leader is the property of China Textile Information Center and its content may not be copied or emailed to multiple sites or posted to a listserv without the copyright holder's express written permission. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.)

Copyright of Chinese Journal of Oil Crop Sciences is the property of Oil Crops Research Institute of Chinese Academy of Agricultural Sciences and its content may not be copied or emailed to multiple sites or posted to a listserv without the copyright holder's express written permission. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.)

Copyright of Chinese Journal of Oil Crop Sciences is the property of Oil Crops Research Institute of Chinese Academy of Agricultural Sciences and its content may not be copied or emailed to multiple sites or posted to a listserv without the copyright holder's express written permission. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.)

Copyright of Xinjiang Agricultural Sciences is the property of Xinjiang Agricultural Sciences Editorial Department and its content may not be copied or emailed to multiple sites or posted to a listserv without the copyright holder's express written permission. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.)

Copyright of Cotton Textile Technology is the property of Cotton Textile Technology Editorial Office and its content may not be copied or emailed to multiple sites or posted to a listserv without the copyright holder's express written permission. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.)

Rational crop rotation has a positive role in promoting crop production. In order to clarify the effect of different crop rotation patterns and previous crops on growth and grain yield of oilseed flax in dry land flax, a long-term field positioning experiments were conducted. We studied the effect of regulation of six different rotation treatments on grain yield formation of oilseed flax and which response to different stubbles. Six rotation patterns were set as follows: flax-flax-flax-flax (FFFF), flax-wheat-potato-flax (FWPF), flax-potato-flax-wheat (FP-FW), flax-flax-wheat-potato (FFWP), flax-wheat-flax-potato (FWFP) and flax-wheat-potato-wheat (FWPW). The results showed that crop rotation influenced grain yield and yield-related traits of oilseed flax. The grain yield of oilseed flax under different rotation treatments increased by 5.99%-88.49% compared with continuous cropping (FFFF). The frequency of oilseed flax had a significant effect on grain yield. The grain yield under FWPW treatment with 25% flax planting frequency increased by 17.55%-62.50% compared with that of 50% flax planting frequency and 88.49% compared with that of continuous cropping, respectively. Plant height, capsule number, branch number and 1000-seed weight under rotation treatments were greater 1.74%-15.15%, 12.82%-38.48%, 11.02%- 24.93% and 4.88%-13.56% than that of FFFF pattern, respectively. The accumulation amount and distribution ratio of dry matter in different organs were significantly correlated with grain yield of oilseed flax. Crop rotation significantly promoted dry matter accumulation, which were increased by 14.87%-39.57% compared with that of FFFF. The dry matter accumulation was decreased with the increasing of frequency of oilseed flax, which was generally expressed as 25% flax planting frequency > 50% flax planting frequency > 100% flax planting frequency. The results showed that crop rotation could effectively promote plant height, branch number, effective capsule number or 1000- grain weight by promoting the accumulation of dry matter in various organs of flax and optimizing dry matter distribution, which further increased grain yield of oilseed flax. It indicates that appropriate rotation mode and crop stubble can effectively solve the problem of yield reduction caused by continuous cropping of flax. In this study, FWPW rotation mode is the best rotation mode for high yield of flax in arid and semi-arid regions. [ABSTRACT FROM AUTHOR]

Copyright of Cotton Textile Technology is the property of Cotton Textile Technology Editorial Office and its content may not be copied or emailed to multiple sites or posted to a listserv without the copyright holder's express written permission. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.)

In order to make worsted fabric with radiation protection and other health functions, wool and rose protein modified fiber were blended, twisted with metal wire to form yarn, and interweave using flax yarn and stainless-steel wire flower. Different styles of products were developed and designed to meet the needs of customers in different markets. To solve the problems and difficulties in the process of design and production, such as material selection, unwinding, wire breaking, tension configuration, etc., a reasonable solution was put forward by combined with the actual process parameters and other relevant technical points to ensure the success and batch of products. The results show that adding stainless steel wire into worsted fabric can achieve the function of radiation protection. Worsted fabrics can be blended with flax fiber to make the fabric feel dry-touch, slightly wrinkled, more casual and practical. This study is helpful to improve the added value of men's worsted fabric. [ABSTRACT FROM AUTHOR]

Copyright of Cotton Textile Technology is the property of Cotton Textile Technology Editorial Office and its content may not be copied or emailed to multiple sites or posted to a listserv without the copyright holder's express written permission. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.)

Copyright of Wool Textile Journal is the property of National Wool Textile Science & Technology Information Center and its content may not be copied or emailed to multiple sites or posted to a listserv without the copyright holder's express written permission. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.)

To further clarify the changes of pectin monosaccharide components in the process of flax degumming, the monosaccharide composition of flax fiber pectin was analyzed by PMP (1-phenyl-3- methyl-5-pyrazolone) Pre-column Derivatization-HPLC, the results showed that flax fiber pectin consist of 9 kinds of monosaccharides, galacturonic acid, arabinose, galactose, glucose, rhamnose, fucose, xylose, mannose, glucuronic acid with ratios of 64.52 : 28.23 : 25.55 : 17.75 : 13.41 : 7.36 : 5.72 : 5. 18 : 5. 05. The end point was reached after 120 hours of degumming by the short time impregnatingretting using river water. During the degumming process, the content of monosaccharides gradually decreased, but the types of monosaccharides did not change much, and the content of fucose was nothing after 96 h of degumming. In addition, the changes of the content of the remaining monosaccharides in descending order were arabinose, galactose, glucose, galacturonic acid, glucuronic acid, rhamnose, xylose, and mannose. The loss rates were 85.00%, 77.64%, 76.67%, 66.72%, 61.43%, 60.44%, 48. 01% and 44.19%, respectively. [ABSTRACT FROM AUTHOR]

Copyright of Acta Agronomica Sinica is the property of Crop Science Society of China and its content may not be copied or emailed to multiple sites or posted to a listserv without the copyright holder's express written permission. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.)

Copyright of Chinese Journal of Oil Crop Sciences is the property of Oil Crops Research Institute of Chinese Academy of Agricultural Sciences and its content may not be copied or emailed to multiple sites or posted to a listserv without the copyright holder's express written permission. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.)

Copyright of Chinese Journal of Oil Crop Sciences is the property of Oil Crops Research Institute of Chinese Academy of Agricultural Sciences and its content may not be copied or emailed to multiple sites or posted to a listserv without the copyright holder's express written permission. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.)

Flax is an important oil crop that is widely cultivated in the dry farming areas of Loess Plateau in Northwest and North China. The seed of flax is rich in high nutrition with many beneficial effects, such as anti-inflammatory, anti-cancer, and regulating blood lipid. A staged harvest is generally used to collect the flax seed in previous manual operations in remote mountainous areas. However, high labor intensity and low operating efficiency have seriously restricted mechanized harvesting in the sustainable development of the flax industry. Since Gansu Province is one of the main hilly planting areas of flax, large combine harvesters cannot run smoothly in the operation of transportation, field entry, and transfer, due mainly to the small blocks and narrow roads. In this study, a track combine harvester was designed for hilly mountain flax, combining with easy winding, high strength, and low mobility of flax stem. This machine included a crawler-type walking system, a low damage header to prevent winding, a transverse-flow beater with the grain rod and rod teeth with small taper, narrow-grid concave plates, and secondary cleaning. The whole feeding realized the joint harvest of flax in hilly areas, including dividing, cutting, conveying, threshing, separating, and cleaning. The crawler walking system adopted hydraulic steering and variable speed, showing the 360° in-situ steering with a turning radius of only 700 mm. In the anti-winding low damage header, an anti-winding plate was set in the feed section of the agitator wheel, while the number of telescopic teeth was reduced. As such, the rotational speeds of the threshing and agitator wheel were adjusted to realize the anti-winding of the flax stem. The threshing roller included the transverse-flow beater with the grain rod and rod teeth with small taper, thereby realizing the complete threshing and separation of the flax capsule. The secondary cleaning was composed of a large air-duct fan, a centrifugal fan, and a cyclone separator to implement two cleaning for flax threshing materials. A field experiment was carried out to evaluate the performance of the combine harvester. The results showed that when the water content of flax seeds was 5.42%, an optimal combination of parameters was achieved, where the threshing rate was 98.76%, the impurity rate was 3.61%, the damage rate was 0.18%, the header loss rate was 1.07%, the entrainment loss rate was 0.25%, the clearance loss rate was 0.81%, the splash loss rate was 0.26%, and the total loss rate was 2.36%. The whole machine ran smoothly during the operation. The operation indexes fully reached the mechanized harvest requirements of flax to serve as a hilly flax combine harvester. [ABSTRACT FROM AUTHOR]

Copyright of Food Research & Development is the property of Food Research & Development Editorial Department and its content may not be copied or emailed to multiple sites or posted to a listserv without the copyright holder's express written permission. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.)

Copyright of Food Research & Development is the property of Food Research & Development Editorial Department and its content may not be copied or emailed to multiple sites or posted to a listserv without the copyright holder's express written permission. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.)

Copyright of China Brewing is the property of China Brewing Editorial Office and its content may not be copied or emailed to multiple sites or posted to a listserv without the copyright holder's express written permission. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.)

[Objective] To screen the suitable fertilization model for flax production in Ulanqab City, Inner Mongolia and provide scientific basis for flax high-efficient cultivation in Ulanqab City. [Methods] Eight kinds of compound fertilizers with different content of NPK were selected and randomized block design was used to explore the effects of different content of NPK on vield and related traits in flax. [Results] Proper fertilization was helpful to im we the emergence rate of flax. The emergence rate and the vield related character of Laisiweite was the highest: three kinds of compound fertilizers. Batian, Laisiweite and Lianmeng significantly increased the flax yield. [Conclusion] Comprehensive analysis showed that the content of NPK in the compound fertilizer of Laisiweite was suitable for flax production in Ulanqah City. [ABSTRACT FROM AUTHOR]

Copyright of Journal of Agricultural Science & Technology (1008-0864) is the property of Journal of Agricultural Science & Technology and its content may not be copied or emailed to multiple sites or posted to a listserv without the copyright holder's express written permission. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.)

Copyright of Cotton Textile Technology is the property of Cotton Textile Technology Editorial Office and its content may not be copied or emailed to multiple sites or posted to a listserv without the copyright holder's express written permission. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.)

Copyright of Chinese Journal of Oil Crop Sciences is the property of Oil Crops Research Institute of Chinese Academy of Agricultural Sciences and its content may not be copied or emailed to multiple sites or posted to a listserv without the copyright holder's express written permission. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.)

Copyright of Acta Prataculturae Sinica is the property of Acta Prataculturae Sinica Editorial Office and its content may not be copied or emailed to multiple sites or posted to a listserv without the copyright holder's express written permission. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.)