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Guar is a typical legume cash crop native to India. Guar beans are ever-rising in the market share at present. Among them, the guar gum of its seed endosperm has been mainly used in the oil exploration industry. Water-based fracturing fluid can be formulated to increase the permeability of oil-bearing strata during oil production. In addition, guar gum is also widely used in paper making, textiles, food, spices, drugs, as well as mining and metallurgical industries. The nutrient-rich green seeds of guar beans are edible for food vegetables, due to a large amount of protein and a small amount of fat. The plant can be used as fodder and green manure. However, the low supply of guar gum on the market cannot fully meet the broad market space. Only a small number of planting areas of guar beans are suitable for the cultivation of guar beans in the food industry. Among them, Xinjiang located in the northwestern inland arid zone is very similar to the unique geographic conditions for the production and cultivation of guar beans. The temperature and heat conditions are suitable for the origin of guar, rich in the light and heat resources under the soil and water environment, with the high temperature difference between day and night, due to the scarce rainfall and high evaporation. But the relatively small region of guar bean planting still remains so far. Therefore a broad prospect can be expected to optimize the water and nitrogen management for the high crop yield and efficient use of water and nitrogen. This study aims to explore the water and nitrogen mode suitable for drip irrigation of guar beans under film in the Xinjiang area of China. Four irrigation levels were set: W1:1170 m³/hm², W2:1 530 m³/hm², W3:1 890 m³/hm², W4: 2 250 m³/hm²; Two levels of nitrogen application were: N1:30 kg/hm², N2:50 kg/hm². A systematic investigation was made to clarify the effects of water and nitrogen interaction on the growth index, yield, water, and nitrogen use efficiency, as well as the quality of guar bean during drip irrigation under film. The results showed that the coupling effect of water and nitrogen shared a significant effect on the yield, irrigation water use efficiency, and partial factor productivity of nitrogen fertilizer (W3>W4>W2>W1). There was an increase in the plant height, stem diameter, dry matter accumulation, yield, water use efficiency, galactomannan, soluble sugar, and polysaccharide content of Guar bean under the N2 level, compared with the N1 level. Only the partial productivity of nitrogen fertilizer decreased slightly. Principal component and membership function analysis showed that the optimal treatment was achieved in the irrigation amount of 1 890 m³/hm² and the nitrogen application rate of 50 kg/hm²(W3N2). The finding can also provide a theoretical basis to promote the yield, water, and nitrogen use efficiency of Guar bean under mulched drip irrigation. [ABSTRACT FROM AUTHOR]

[Objective] To utilize existing resources to create new excellent restoring and sterile lines, and to breed new hybrid rice varieties with high yield, quality and disease resistance. [Method] The high-yielding, large panicle and strong stem (HR1128/Chenghui 727) F3 selected line was used as the female parent and the early maturing and blast resistant Wushan silk seedling was used as the male parent. A new restoring line Zhunongzhan 110 with strong restoring ability, good combining ability and resistance to rice blast was selected through multiple generations of selection and cross testing with multiple three line sterile lines. In the multi-point comparison experiment, the combination with Zhu 99A showed the characteristics of high yield, high quality, disease resistance and lodging resistance, so it was named Zhuyou 110. In 2020-2021, Zhuyou 110 participated in regional trials of late maturing medium Indica rice in the middle and lower reaches of the Yangtze River and photosensitive late Indica rice in southern China. [Result] In the regional trial of late maturing medium Indica rice in the middle and lower reaches of the Yangtze River, the average yield of Zhuyou 110 in the two-year regional trial was 9.70 t/ hm², enhanced by 6.6% compared with CK. In the 2021 production test, the average yield was 10.13 t/ hm², enhanced by 5.9% compared with CK. It showed high yield, lodging resistance and moderate resistance to rice blast, which reached the second level of the Quality of Edible Rice Varieties (NY/ T 593— 2013) standard in the agricultural industry, approved by the National Crop Variety Approval Committee (Authorization code:Guoshendao 20220021). [Conclusion] Zhuyou 110 had the advantages of high yield, high quality, lodging resistance and moderate resistance to rice blast, which was suitable for planting one mid-season rice in the middle and lower reaches of the Yangtze River and double late-season rice in the southern rice region. [ABSTRACT FROM AUTHOR]

Jiajing 86 is a new variety of double-season late Japonica rice bred by Anqing Jiayuan Agricultural Technology Co., Ltd., and the Rice Institute of Anhui Academy of Agricultural Sciences, which had the characteristics of broad adaptability, high quality and high yield. In 2021, it was approved by the Anhui Province Crop Variety Approval Committee and was recommended for demonstration and promotion in the single-season Japonica rice and double-season late Japonica rice areas of Anhui Province. We introduced the parental origins and breeding process of Jiajing 86, summarized its characteristics and cultivation techniques, aiming to provide references for the demonstration and promotion of Jiajing 86. [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 Micronanoelectronic Technology is the property of Micronanoelectronic 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.)

【Objective】A joint evaluation on Ricinus communis cross combinations was conducted to provide a theoretical reference for screening high-yield varieties suitable for mechanical harvest.【Method】The yield trait, adaptability for mechanical harvest and photosynthetic performance of 30 R. communis cross combinations were jointly evaluated by grey relational analysis, principal component analysis and cluster analysis.【Result】In the grey relational analysis, 6 combinations including N19 (0.768), N7 (0.751), N11 (0.727), N10 (0.717), N6 (0.713) and N13 (0.712) with weighted correlation degree between various combinations and the ideal varieties were screened out. Among which, the former 4 combinaitons had higher weighted correlation degrees than that in Zibi 5 (0.714), and the weighted correlation degrees of the latter 2 were close to that in Zibi 5. Principal analysis results showed that, 10 traits were classified into 3 principal components, namely, plant type factor, yield determining factor and photosynthetic and branching angle factor, with a cumulative contribution rate of 67.07%. Among the 30 combinations, the comprehensive scores of 21 combinations were higher than that of Zibi 5 (-0.699), and only 4 combinations, N18 (2.370), N4 (1.848), N19 (1.742) and N11 (1.019) had comprehensive scores larger than 1, of which N19 was the most prominent with a much higher score than that in other 3 combinations. Cluster analysis revealed that, the 30 combinations could be classified into 4 groups at Euclidean distance value equal to 22. Among them, Group IV members (including N19, N11 and N30) with the best overall performance was most similar to the ideal varieties based on the average performance in each cluster, however, the branching angle (59.10°) was large and still expected to be improved.【Conclusion】Based on the above 3 evaluation results, the comprehensive evaluation avoids the acceptance of redundant germplasm and the loss of elite germplasm. The N19 and N11 with high yield, good plant type and high photosynthetic rate were selected as the optimal Ricinus communis cross combinations, and their comprehensive performances were better than that of Zibi 5, providing a direction for further improvement of varieties.out of varieties.

In order to make Baodamai 25 play a greater yield potential in production, the yield, stability, adaptability and yield components of Baodamai 25 were analyzed based on the data of multi-point test of barley in Baoshan City from 2016 to 2017 and reginal test of forage barley in Yunnan Province from 2017 to 2019. Results showed that the yield, stability and adaptability of Baodamai 25 were better than those of the control varieties. The correlation degrees of main agronomic traits with yield from high to low was as follows; filled grain number per panicle (0.3973), effective panicle (0.3560), total number of tillers (0.2052), plant height (0.1550), 1000-grain weight (0.0707), basic seedlings (0.000 3). The direct effects on yield from high to low were as follows; filled grains per panicle (0.4987), 1000-grain weight (0.4249), effective panicles (0.3605), plant height (0.2683), total tillers (0.2335), basic seedlings (0.0652). The correlation degree with yield from high to low was as follows; grain number per panicle (0.4611), plant height (0.4583), effective panicles (0.4377), 1000-grain weight (0.4180), total tillers (0.3866), basic seedlings (0.3642). [ABSTRACT FROM AUTHOR]

【Objective】 A joint evaluation on Ricinus communis cross combinations was conducted to provide a theoretical reference for screening high-yield varieties suitable for mechanical harvest. 【Method】 The yield trait, adaptability for mechanical harvest and photosynthetic performance of 30 R. communis cross combinations were jointly evaluated by grey relational analysis, principal component analysis and cluster analysis. 【Result】 In the grey relational analysis, 6 combinations including N19 (0.768), N7 (0.751), N11 (0.727), N10 (0.717), N6 (0.713) and N13 (0.712) with weighted correlation degree between various combinations and the ideal varieties were screened out. Among which, the former 4 combinaitons had higher weighted correlation degrees than that in Zibi 5 (0.714), and the weighted correlation degrees of the latter 2 were close to that in Zibi 5. Principal analysis results showed that, 10 traits were classified into 3 principal components, namely, plant type factor, yield determining factor and photosynthetic and branching angle factor, with a cumulative contribution rate of 67.07%. Among the 30 combinations, the comprehensive scores of 21 combinations were higher than that of Zibi 5 (-0.699), and only 4 combinations, N18 (2.370), N4 (1.848),N19 (1.742) and N11 (1.019) had comprehensive scores larger than 1, of which N19 was the most prominent with a much higher score than that in other 3 combinations. Cluster analysis revealed that, the 30 combinations could be classified into 4 groups at Euclidean distance value equal to 22. Among them, Group IV members (including N19, N11 and N30) with the best overall performance was most similar to the ideal varieties based on the average performance in each cluster, however, the branching angle (59.10°) was large and still expected to be improved. 【Conclusion】 Based on the above 3 evaluation results, the comprehensive evaluation avoids the acceptance of redundant germplasm and the loss of elite germplasm. The N19 and N11 with high yield, good plant type and high photosynthetic rate were selected as the optimal Ricinus communis cross combinations, and their comprehensive performances were better than that of Zibi 5, providing a direction for further improvement of varieties.out of varieties. [ABSTRACT FROM AUTHOR]

In response to the urgent demand for mechanization, lightened and simplified cotton production management, as well as the breeding difficulties of collaborative improvement and enhancement of plant architecture, early maturity, yield, fibre quality, and disease resistance for cotton varieties, research on new variety development with the early maturity, high yield, good fibre quality and suitability for mechanization and coordinative cultivation techniques were carried out. Breeding technologies of synchronous improvement of early maturity, density resistance, lodging resistance and suitability for mechanization were established with "two modifications, two increases, and four selections". Ten elite breeding parent materials were produced. A total of 633 SNP loci associated with 14 traits were determined, including flowering period, Verticillium wilt resistance, boll weight, lint percentage, fibre length, fibre strength and so on. Twenty-six KASP markers with lower cost and higher throughput were developed for breeding selection of fibre quality and Verticillium wilt resistance. Twelve key genes regulating early maturity, fibre quality, adversity resistance and seed germination were discovered. And their expression patterns in different varieties were documented. Using the elite breeding parent materials, breeding techniques, and developed molecular markers, four new varieties including Jinongda 23, Jinongdamian 24, Jinongdamian 25 and Jinongda 36 were bred with early maturity, high yield, good fibre quality and suitability for mechanization. New breakthroughs were made in improving mechanical characteristics such as compact plant architecture, early maturity, concentrated boll opening, and synergistic enhancement with high yield, good fibre quality and disease resistance. Simple, labor saving, and efficient supporting techniques with "one-hole-one-seed machinery sowing, expanding the number of bolls in the population, chemical regulation in whole growing season and pruning-free, and concentrated harvesting in cotton fields" were created for mechanical harvesting. By combining science, enterprises and application, demonstration bases with strong representatives, wide coverage, and strong driving force were established, leading the large-scale production and application of new varieties, with an income increase of 2 700-3 000 yuan per hectare and 60-75 labor saving, significantly reducing costs and increase efficiency. [ABSTRACT FROM AUTHOR]

The aim was to screen hybrid Indica rice varieties suitable for machine-harvesting and regrowing rice cultivation. Thirteen varieties, such as Jingliangyousizhan were selected as the research subjects. The comprehensive analysis was carried out from the aspects of growth period, main agronomic characters, high yield and regeneration ability through the plot comparison test. The results showed that 5 varieties, such as Jingliangyousizhan, had obvious advantages in comprehensive characters, which were suggested to be promoted; Longliangyoujingzhan and other 2 varieties had relatively weak regeneration ability, but had high yield, so they were suggested for moderate promotion; Chuangliangyoumolizhan and other 2 varieties had relatively weak regenerative capacity and moderate yield, their rice quality were excellent and pilot cultivation was recommended. [ABSTRACT FROM AUTHOR]

Zhenliangyou 17 is a new hybrid indica hybrid with high quality and high yield, produced by the combination of Zhen9S(a photothermosensitive nuclear sterility line) and R17(a strong dominant anti-reverse restorer line) from Anhui Yuanliang Rice Industry Co. Ltd. Zhenliangyou 17 has the characteristics of high quality, high yield and lodging resistance. After regional test of late maturing group in the middle and lower reaches of Yangtze River in southern rice area of China, Zhenliangyou 17 passed the national crop new varieties examination. We introduced the breeding process and major agronomic characters of Zhenliangyou 17, discussed the high-yield seed production technology, so as to provide references for the further extension. [ABSTRACT FROM AUTHOR]

'Yunshu 108', a new potato variety with disease resistance, high yield and high quality, was developed by the Industrial Crops Institute of Yunnan Academy of Agricultural Sciences, Zhaotong Agricultural Science Research Institute, and Kunming Yunshu Agricultural Science and Technology Co., Ltd. from a across using 'Dianshu 6' as female parent and 'S04-827' as male parent made in 2008, and passed the national registration of new varieties of non-major crops in 2021, with registration number: GPD potato (2021) 530114. This variety planted in spring is late maturing and has a growth duration of 107-118 days. It has round tubers, smooth skin, yellow skin and flesh, shallow eyes, and good cooking taste. Dry matter content is 19.60%- 23.20%, starch content 12.32%- 14.82%, protein content 2.20%- 2.62%, vitamin C content 8.70-15.20 mg/100 g FW and reducing sugar content 0.10%-0.28%. 'Yunshu 108' plants are resistant to late blight, and potato virus Y. From 2019 to 2021, the highest yield was 97 196 kg/ha, breaking the record of the highest potato yield in Yunnan Province for three times, and also setting a record for the highest potato yield in the southwest region. This variety is suitable for promotion and cultivation in potato spring planting areas such as Yunnan, Guizhou, and Sichuan provinces, and could be used for fresh consumption, feed and starch processing. [ABSTRACT FROM AUTHOR]

Copyright of Journal of Drainage & Irrigation Machinery Engineering / Paiguan Jixie Gongcheng Xuebao is the property of Editorial Department of Drainage & Irrigation Machinery Engineering 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.)

Shiyan City is one of the traditional potato production areas in Hubei Province, with annual planting area of more than 20 000 ha. However, most of the major production areas are facing problems such as the usage of commercial potatoes as seed potatoes, poor production conditions, underdeveloped production methods, and low production technology, resulting in low and unstable yields. The advantages and existing problems in the potato production area of Shiyan City were briefly analyzed, and high- yielding and efficient planting technical measures applicable to Shiyan City was introduced from the aspects of variety selection, use of virusfree seed potatoes, land selection, sowing date determination, planting mode, field management and harvesting, so as to improve the potato planting level and farmers' economic benefits in Shiyan City. [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.)

Jiahe 165 was a conventional rice variety with high quality, disease resistance, high yield and lodging resistance after many years of breeding, which was bred by the College of Life Science of Xiamen University. This variety was bred by crossing the high-quality early rice variety Jiafuzhan as the female parent with the high-quality large-grain material Jiafu 42 created by the irradiation mutagenesis of mature pollen as the male parent, and then recrossed with the introduced high-quality rice variety Yuejingsimiao. The whole growth period of Jiahe 165 was about 122 days, which was equivalent to that of Tianyouhuazhan (CK). The yield level of this variety was high, with the average yield being 8 859.5 kg • hm-2 in the regional test, and the average yield in the 100 mu demonstration plot of high-yield cultivation reaching 8 904.00 kg • hm-2, Jiahe165 showed medium resistance to the rice blast and its grain quality accorded with the quality standard of the first-class high-quality edible rice varieties issued by the Ministry. The rice quality had good stability and it was also resistant to high fertilizer level and lodging. Jiahe 165 was approved by Fujian Crop Variety Approval Committee in 2021 (Minshendao 20210039) and has been popularized and applied in the production. [ABSTRACT FROM AUTHOR]

Nanjing 5718 is a rice variety with good eating quality approved by Jiangsu province in 2019 and was confirmed as super rice by the Ministry of Agriculture and Rural affairs in 2021. Studying its yield composition characteristics, photosynthetic characteristics, and physiological basis can be helpful to investigate photosynthetic traits of super rice variety, improve its photo- synthetic performance through genetic improvement, and provide the theoretical basis for high-yield breeding and cultivation of japonica rice. In this study, the parents of Nanjing 5718 and Huaidao 5, a widely popularized rice variety with the same growth period type, as the control, dry weight of aboveground of plant, chlorophyll contents, photosynthetic rates, and photochemical characteristics of photosystem II (PSII), core antenna protein expression, photosynthetic enzyme activities, and chloroplast ultrastructure were investigated in Nanjing 5718 from full expansion of flag leaves at the beginning of booting to 35 days after flowering. The results showed the pigment contents of the leaves in Nanjing 5718 were higher, which were close to male parent Yanjing 608. The net photosynthetic rates, dry weight, and PSII electron transfer activities of flag leaves at the late growth stage were significantly higher in Nanjing 5718 than those in parents and Huaidao 5. The light energy conversion performance of PSII was superior. The core antenna protein CP43 and CP47 were more stable under strong light and high temperature, and their adjustment ability of Nanjing 5718 was better than that of parents and Huaidao 5. In addition, the activities of RuBP carboxylase in flag leaves were higher, the contents of photosynthetic products were higher, the chloroplast structure was more stable, the senescence characteristics appeared later, and the chloroplast decay rates were slower in Nanjing 5718, compared with parents and Huaidao 5. The results indicated that high photosynthetic performance of flag leaves was the basis for the formation of high yield characteristics of super rice Nanjing 5718 with large panicles. The great activity and function of photosystem proteins were main factors of improving leaf photosynthesis, and the stability of chloroplast structure could provide powerful support for high photosynthetic efficiency of leaves. [ABSTRACT FROM AUTHOR]

【Objective】 To screen buckwheat varieties（lines）suitable for different growing areas in Inner Mongolia and to meet the needs of buckwheat processing companies,as well as,to provide reference for buckwheat variety evaluation and application. 【Methods】 The AMMI model was used to analyze the stable yield and high yield of 15 buckwheat varieties（lines）in 4 pilots（the experimental site in Inner Mongolia Academy of Agricultural and Animal Husbandry Sciences,Wuchuan County of Hohhot,Guyang County of Baotou,Naiman Banner of Tongliao）. 【Results】 In varince analysis,variety,experimental location and the interaction between the variety and experimental location were all extremely significant（P<0.01）. According to AMMI model analysis,the interaction effect of IPCA1 and IPCA2 explained 92.28% of the variety and location interaction information which indicated the varieties and locations chosen were representative. Mengku 11,Mengku 09,Mengku 93,Mengku 13,Mengku 06 were high and stable yield varieties（lines）,and Mengku 45,Mengku 66 were stable varieties with poor yield,while Mengku 87 and Mengku 53 were high yield but poor stability. Guyang County of Baotou had the highest resolution for the variety identification abilities,while Wuchuan County of Hohhot had the weakest in the 4 pilots. 【Conclusion】 Mengku 11,Mengku 09,Mengku 93,Mengku 13,Mengku 06 were suitable for large-scale cultivation in Inner Mongolia. The AMMI model could be used to accurately analyse variety stability and high yield. [ABSTRACT FROM AUTHOR]

【Objective】 The high yield and adaptability of varieties（lines）participating in the naked oats regional test in China from 2003 to 2014 were determined,and suitable planting sites were devided to provide a basis for the promotion of the varieties. 【Methods】 The standard deviation of means（SD）corrected GGE-Biplot（SD-GGE）method was used to evaluate the high yield and adaptability of 4 rounds of trials and 30 naked oat varieties in 21 pilots. 【Results】 The analysis of variance showed that the environment was the main factor affecting yield changes,accounted for 47.53%-83.95% of the total variation. On the GGE-Biplot,9418,Bayou No.10,Mengyan No.2 and Zhangyou No.7 were higher yields in most of the pilots tested. In all 4 rounds of trials,the high yield of all varieties in the Wuzhai County in Shanxi Province was basically the same as the order of the average yield of all the experimental sites. 【Conclusion】 9418,Bayou No.10,Mengyan No.2 and Zhangyou No.7 were high yield and strong adaptability varieties. Wuzhai County in Shanxi Province was a good respresentative of all the sites. [ABSTRACT FROM AUTHOR]

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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.)

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According to the diversification of the demand for fine peanut varieties in Fujian Province, the new varieties of pearl type of peanut with disease resistance, high yield, stable yield and wide adaptability were bred. Minhua No. 11 was a new peanut variety with high oil, high protein and high yield, which was bred by Oil Research Institute of Fujian Agriculture and Forestry University with Yueyou No. 7 as the female parent and Yuhua 15 as the male parent after many generations. The average pod yield of this variety was 3 856. 05 kg · hm-2 in Fujian Province, which was 9.78% higher than that of the control group Quanhua No. 7. The seed kernel yield was 2 614.2 kg · hm-2, which was 6. 77% higher than that of the control group. The oil content of Minhua No. 11 was 50. 27%, the protein content was 29. 90%, the oleic acid content was 43. 7%, the ratio of oleic acid to linoleic acid was 1. 26, and it had high resistance to rust, moderate resistance to leaf spot and bacterial wilt, high drought resistance, flood resistance and lodging resistance. This variety was highly resistant to rust disease, moderately resistant to leaf spot and bacterial wilt diseases. Minhua No. 11 passed the national non-major crop varieties registration in July 2020, and the registration number was GPD peanut (2020) 350055. [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 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 Journal of Henan Agricultural Sciences is the property of Editorial Board of Journal of Henan 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 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.)

A field experiment was conducted with 103 medium-maturity conventional japonica rice varieties (lines) including main varieties grown in Jianghuai area and released varieties in recent years with potential productivity, from which three types [good taste and high yield (GH), good taste and medium yield (GM), and medium taste and high yield (MH)] were selected to explore the characteristics of varieties with good taste and high yield in Jianghuai area. There was no significant difference in processing quality between GH type and MH type. Compared with MH type, GH type was 82.06%, 56.34%, and 93.28% higher in chalkiness rate, chalky area ratio and chalkiness, 14.21% and 39.78% lower in protein content and amylose content, 8.73% higher in gel consistency, and 282.11% and 37.88% lower in setback and consistence, respectively. The yield of GH type was 26.73% higher than that of GM type, due to large number of spikelets per panicle and high seed-setting rate. The panicles per unit land area was 22.26% lower, the number of spikelets per panicle and seed-setting rate were 42.12% and 6.18% higher, the ratio of productive tillers to total tillers was 4.2% higher in GH type than those in GM type. The LAI of GH type during heading and maturity periods was 5.47% and 16.94% higher and the decay rate of LAI was 7.25% lower than those of GM type. From heading to maturity, the dry matter accumulation and its ratio, the photosynthetic potential, the crop growth rate, the net assimilation rate and seed setting density were 24.07%, 15.50%, 17.59%, 13.96%, 3.67%, and 40.33% respectively higher in GH type than those in GM type. From above, GH type of medium-maturity conventional japonica rice has the following characteristics: the brown rice rate and the head milled rice rate reach the 1 grade of Chinese standard; the transparency is from grade 3 to grade 5; the protein content is around 8% and the amylose content is around 10%; the gel consistency is over 75 mm; the setback is below -300 cP and the consistence is below 600 cP; the number of panicles per unit land area is around 310×104 ha-1, and the grains number per panicle is around 140. It can keep the dry matter accumulation and the leaf area index in optimum ranges before heading period, and remain the leaf area index, the dry matter accumulation and its ratios at high levels after heading period. [ABSTRACT FROM AUTHOR]

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Copyright of Journal of Henan Agricultural Sciences is the property of Editorial Board of Journal of Henan 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 Journal of Agro-Environment Science is the property of Journal of Agro-Environment Science Editorial Board 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.)

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To get optimal nitrogen (N), phosphorus (P2O5) and potassium (K2O) concentrations range for high quality and yield of eggplant with vermiculite as cultivation substrate, three factors and quadratic saturation D-optimal regression (310) were used to establish a ternary quadratic mathematical model with N, P2O5 and K2O concentrations as independent variables and eggplant yield and quality as objective functions. The results showed that yield and quality of eggplants were significantly influenced by N, P2O5 and K2O concentrations. The yield was most influenced by K2O concentration, and followed by N and then P2O5. The quality was also most influenced by K2O concentration, and followed by P2O5 and then N. There were significant interactive effects of N+P2O5, N+K2O and P2O5+K2O on yield, and significant interaction of N+K2O on eggplant quality. Under lower concentrations, the yield and quality of eggplants enhanced with the increasing N, P2O5 and K2O concentrations. When the nutrient concentrations exceeded a threshold, both yield and quality decreased. According to computer simulations, the yield could reach to 3600 g ⋅ plant-1 when the fertilization schemes were N 16.0-20.0 mmol ⋅ L-1, P2O5 2.2-2.6 mmol ⋅ L-1 and K2O 9.9-12.9 mmol ⋅ L-1; the fertilization scheme needed to obtain a comprehensive quality score of higher than 90 were N 18.0-21.1 mmol ⋅ L-1, P2O5 1.9-2.6 mmol ⋅ L-1 and K2O 10.6-13.3 mmol ⋅ L-1. In summary, fertilization scheme of high yield (43.2 kg ⋅ plot-1) and high quality ( comprehensive score of higher than 90) of eggplants were N 18.0-20.0 mmol ⋅ L-1, P2O5 2.2-2.6 mmol ⋅ L-1, K2O 10.6-12.9 mmol ⋅L-1, with an appropriate N, P2O5 and K2O proportion of 1 :0.13:0.62. [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.)

[Objective] In this paper, the genetic basis and yield structure of super japonica rice variety(SJR) planted in Yangtze-huai river area were studied. [Method]41 SSR markers and 4 gene tagged markers associated with yield traits were employed to analyze the genetic basis of the 16 SJR varieties, and their agronomic traits correlation with yield were measured. [Result] Pedigree analysis showed that Wuyun-jing7(or its derived lines) was the backbone parent in the super high yield breeding in Jiangsu, and the genetic backgrounds among the high yield varieties in Jiangsu were narrow. Yield components with the characteristic of semi-dwarf (plant height in 100 - 105 cm), higher effec-live panicle number (more than 3. 10 million per hm2), erect or semi-erect panicle type, mid-grain number per panicle (120 - 140 per panicle) and thousand grain weight range from 26 to 27g was the elite model, and the panicle number was the key restriction factor in higher yield breeding for conventional japonica rice in Jiangsu. [Conclusion ] Results in ibis study show enlightenment on the way and target of breeding high yield potential japonica rice in Yangtze-huai river area. [ABSTRACT FROM AUTHOR]

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Copyright of Journal of Southern Agriculture is the property of Journal of Southern Agriculture 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.)

Huaimai 25 is a new wheat cultivar with high yield and wide adaptability released by Huaiyin District Institute of Agricultural Sciences of Jiangsu Province. This paper analyzed its yield formation and stability by the data from many years' national and regional tests in order to provide reference for the current high yield wheat breeding. The results showed that Huaimai 25 achieved extreme significant yield increase for 2 successive years in southern Huang-Huai Winter Wheat Regional Test. During the 3 years' test, the average productive ear numbers were 648 x 104/hm², kernels per spike were 37, and per 1 000-grain weight was about 38 g. The 3 yield factors of this cultivar are well coordinated. Huaimai 25 has wide and strong adaptability. Both its dynamic and static stability are good. [ABSTRACT FROM AUTHOR]