29 results on '"Takeo Sakaigaichi"'
Search Results
2. Evaluation of mother and daughter root traits in sweet potato germplasm cultivated by direct planting
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Takeo Sakaigaichi, Keisuke Suematsu, Yoshifumi Terajima, Akira Kobayashi, Yukari Kawata, and Yumi Kai
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Daughter root ,direct planting ,genotypic difference ,heritability ,mother root ,sweet potato ,Plant culture ,SB1-1110 - Abstract
Direct planting (i.e. the planting of seed roots) in sweet potato results in the formation of two root types – ‘mother’ and ‘daughter’ roots. High and stable daughter root yields are necessary to improve the acceptance of direct planting cultivation because mother roots have no commercial value. To establish a basis for the effective breeding, the root traits of 28 sweet potato genotypes cultivated by direct planting were evaluated for mother root weight, daughter root weight (DRW), total root weight (TRW), ratio of DRW to TRW (RDRW), and ratio of mother root enlargement. Significant differences between the genotypes were observed for all five traits (p
- Published
- 2022
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- View/download PDF
3. Evaluation of early vigor under direct planting cultivation in sweet potato
- Author
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Takeo Sakaigaichi, Yumi Kai, Akira Kobayashi, and Keisuke Suematsu
- Subjects
early vigor ,genotypic difference ,sweet potato ,direct planting ,Plant culture ,SB1-1110 - Abstract
Direct planting – in which small storage roots are planted instead of transplanting stem cuttings – has been studied as a labor-saving system in sweet potato. Early vigor is important for cultivars used in direct planting because it affects their ability to compete with weeds. In this study, the genotypic difference in early vigor was evaluated. Twelve genotypes were tested in 2018 and 2019. Days to emergence, shoot dry matter yield, plant height, and NDVI were investigated as indicators of early vigor. Significant differences in days to emergence and shoot dry matter yields were observed among genotypes in both years. ‘Kyushu No.198ʹ was outstanding in terms of early vigor. A strong relationship between plant height and shoot dry matter yield was observed; this relationship was also observed with NDVI. Growth traits that can be monitored in a non-destructive way, such as plant height, are reliable predictors of shoot dry matter yield during early growth.
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- 2021
- Full Text
- View/download PDF
4. Evaluation of sugarcane smut resistance in wild sugarcane (Saccharum spontaneum L.) accessions collected in Japan
- Author
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Takeo Sakaigaichi, Yoshifumi Terajima, Makoto Matsuoka, Shin Irei, Seiji Fukuhara, Takayuki Mitsunaga, Minoru Tanaka, Yusuke Tarumoto, Takayoshi Terauchi, Taiichiro Hattori, Shoko Ishikawa, and Michiko Hayano
- Subjects
japan ,smut resistance ,wild sugarcane ,Plant culture ,SB1-1110 - Abstract
Sugarcane smut, caused by Sporisorium scitamineum, is one of the most important sugarcane diseases in Japan. Wild sugarcane, Saccharum spontaneum, is known to be a key breeding material to obtain high-yielding clones. In this study, we sought to identify Japanese wild sugarcane accessions with high resistance to smut. Thirty wild sugarcanes and three sugarcane cultivars were tested by the pinprick method. The results of the inoculation tests aided in identifying wild sugarcanes with high resistance to smut disease, namely JW90, Iriomote8, and Iriomote15. After screening the germplasm, progeny distribution of smut resistance from the inoculation test and dry matter productivity in the smut disease-free field were compared. The highly resistant wild sugarcane accession had a much better impact on progeny distribution of smut resistance compared with the susceptible accession. No relationship was found between smut resistance and dry matter productivity in both populations.
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- 2019
- Full Text
- View/download PDF
5. Comparison of ratoon yield under high-level cutting in two varieties of forage sugarcane, KRFo93-1, and Shimanoushie
- Author
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Takeo Sakaigaichi, Yoshifumi Terajima, and Takayoshi Terauchi
- Subjects
Dry matter yield ,forage sugarcane ,high-level cutting ,multiple ratooning ,stubble shaving ,varietal difference ,Plant culture ,SB1-1110 - Abstract
High-level cutting without stubble shaving has been recommended in the cultivation of forage sugarcane, KRFo93-1. However, it is unclear whether this management practice is appropriate for the more recently developed variety Shimanoushie. Therefore, the aim of this study was to compare the dry matter yield of both varieties to high-level cutting. The study included five ratoon crops (RC1–RC5). In KRFo93-1, dry matter yield was higher in HC plots (high-level cutting without stubble shaving plots) than in Control plots (stubble shaving after high-level cutting plots), and the differences were significant for the first three ratoon crops. A similar trend was observed in Shimanoushie; however, the dry matter yield of HC plots was slightly lower than Control plots in RC4 and RC5 owing to a lower stem number. Although the sum of dry matter yield of five ratoon crops was significantly higher in HC plots of both varieties, the influence of high-level cutting was more effective in KRFo93-1 than in Shimanoushie.
- Published
- 2017
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- View/download PDF
6. Evaluation of the juice brix of wild sugarcanes (Saccharum spontaneum) indigenous to Japan
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Takeo Sakaigaichi, Yoshifumi Terajima, Makoto Matsuoka, Takayoshi Terauchi, Taiichiro Hattori, and Shoko Ishikawa
- Subjects
Honshu ,Japan ,juice brix ,Nansei Islands ,stem traits ,wild sugarcane ,Plant culture ,SB1-1110 - Abstract
Modern sugarcane cultivars are derived from the interspecific crossing between Saccharum officinarum and wild sugarcane, Saccharum spontaneum. The introgression of valuable characteristics from wild sugarcane is recognized as extremely important, but this process typically requires long-term effort over multiple generations of backcrosses owing to the low sugar content of the initial interspecific hybrids. In this study, we aimed to identify Japanese wild sugarcanes with high juice brix in order to promote effective interspecific crossing of sugarcane. Sixty-four accessions from the Nansei Islands and 70 accessions from the Honshu were evaluated for juice brix. Wild sugarcanes with high juice brix were demonstrated to exist among wild sugarcanes indigenous to the Honshu. A significant difference was observed between the median juice brix values of wild sugarcanes of the Nansei Islands and those of the Honshu. The relationship between juice brix and stem traits was then examined in 20 wild sugarcanes, 10 each from the Nansei Islands and the Honshu. The reproducibility of juice brix value in both experiments was confirmed. In contrast to juice brix, stem traits, such as length, diameter, and volume, were typically smaller in wild sugarcanes from the Honshu. Moreover, a negative correlation was observed between the index of stem volume and juice brix. In this study, we identified outstanding wild sugarcanes with high juice brix. Using germplasms from the identified wild sugarcanes in interspecific crossing could contribute to the increases in both yield and sugar content.
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- 2016
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7. Effect of Stubble Shaving after High-Level Cutting on the Growth and Yield of Forage Sugarcane, KRFo93-1, under Multiple Ratooning Cultivation
- Author
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Takeo Sakaigaichi, Yoshifumi Terajima, Takayoshi Terauchi, Taiichiro Hattori, Shoko Ishikawa, Ikuo Hattori, Akira Sugimoto, and Makoto Matsuoka
- Subjects
Dry matter yield ,Forage sugarcane ,High-level cutting ,Multiple ratooning cultivation ,Stubble shaving ,Plant culture ,SB1-1110 - Abstract
In the production of sugarcane, stubble shaving that cuts the residual stubble of the previous crop is carried out to promote ratoon crop growth. On the other hand, in the production of feed crops, it is generally considered that high-level cutting increases the yield of the regrowth crop. In this study, the growth and yield of the forage sugarcane subjected to high-level cutting without stubble shaving (HC) were compared with those of the plants subjected to stubble shaving (Control) to clarify the necessity of stubble shaving in the cultivation of a forage sugarcane variety, KRFo93-1. The influence of high-level cutting on the growth and yield of ratoon crop was evaluated from the first ratoon crop (RC1) to sixth ratoon crop (RC6). Tiller number in the Control plot was not different from that in the HC plots in all ratoon crops from RC1 to RC6. Stem length was significantly larger in HC than in the Control plot in all ratoon crops at the initial stage of regrowth, and in RC1, RC3, RC5 and RC6 around the harvest time. Dry matter yield was significantly higher in HC than in the Control plot in RC1, RC3, RC5, RC6 and in the sum of the ratoon crops. Although no significant difference was observed in RC2 or RC4, the dry matter yield of HC exceeded that of Control plot. The increase in the dry matter yield of HC was due to an enhancement of stem growth, since the single stem dry weight were larger in HC than in Control plot. Thus, cultivation management without stubble shaving is recommended in KRFo93-1.
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- 2013
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8. Diurnal and Phenological Changes in the Rate of Nitrogen Transportation Monitored by Bleeding in Field-GrownRice Plants (Oryza sativa L.)
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Takeo Sakaigaichi, Shigenori Morita, Jun Abe, and Takeshi Yamaguchi
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Bleeding sap ,Diurnal change ,Nitrogen uptake ,Phenological change ,Rice ,Root length ,Plant culture ,SB1-1110 - Abstract
Nitrogen uptake is essential for rice growth and yield. Thus, the development of a simple and rapid method for monitoring nitrogen absorption is strongly required. We examined the fundamental properties of nitrogen transportation monitored by bleeding, including diurnal and phenological changes, to discuss whether the analysis of bleeding sap could be used for monitoring nitrogen uptake by rice. The rate of nitrogen transportation monitored by bleeding was estimated from a combination of the nitrogen concentration in bleeding sap and bleeding rate. We found a clear diurnal change in the rate of nitrogen transportation monitored by bleeding; it was higher in the daytime than at night. In this study, the diurnal change innitrogen uptake was not influenced by soil temperature but by the light condition. The rate of nitrogen transportation monitored by bleeding showed a phenological change with a peak around the panicle formation stage, while the bleeding rate peaked at around heading and was correlated with root length. The nitrogen concentration in bleeding sap continued to decrease gradually from the early growth stage. The cumulative amount of nitrogen uptake estimated by the bleeding sap analysis was less than half of that estimated by the plant analysis before the maximum tiller number stage, but the difference between these values decreased with plant growth. There was a significant positive correlation between the cumulative amount of nitrogen uptake estimated by these analyses throughout the growing period.
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- 2007
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9. Anthocyanin Composition of the Purple Sweet Potato Cultivar 'Churakanasa'.
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Rie Kurata, Yoshihiro Okada, Takeo Sakaigaichi, Yumi Kai, Akira Kobayashi, and Keisuke Suematsu
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- 2024
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10. Sugarcane Breeding and Supporting Genetics Research in Japan
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Makoto Umeda, Mitsunori Sato, Takashi Naito, Takeo Sakaigaichi, Yoshifumi Terajima, Hiroo Takaragawa, Shin Irei, Taiichiro Hattori, and Masayuki Shimatani
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0106 biological sciences ,geography.geographical_feature_category ,Food security ,biology ,business.industry ,Agroforestry ,Humid subtropical climate ,04 agricultural and veterinary sciences ,biology.organism_classification ,01 natural sciences ,Unit (housing) ,Geography ,Agriculture ,Sustainability ,Archipelago ,040103 agronomy & agriculture ,0401 agriculture, forestry, and fisheries ,Cane ,Soil fertility ,business ,Agronomy and Crop Science ,010606 plant biology & botany - Abstract
In Japan, sugarcane cultivation is limited to its Southwest Islands, at the southernmost end of the Japanese Archipelago. These islands have a mostly subtropical climate, but the natural environmental conditions are harsh for sugarcane cultivation because of frequent typhoons, droughts in summer, poor soil fertility, and low temperatures in winter. Although the sugarcane industry has played an essential role in food security in Japan and the local economy of the Southwest Islands, cane production, production area, average unit yields, and number of farmers involved have been decreasing in recent years due to aging farmers, relatively slow mechanization, and adverse natural conditions. To maintain and develop the sugarcane industry and its sustainability, a network of sugarcane researchers is engaged in collaborative efforts to improve sugarcane production in the region. This paper briefly reviews the history and current status of sugarcane production and breeding in Japan, challenges the research teams are addressing, and the methodological approaches applied, including introgression-based, biotechnological, and molecular genetic breeding techniques.
- Published
- 2021
11. Detection of a major QTL related to smut disease resistance inherited from a Japanese wild sugarcane using GRAS-Di technology
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Taiichiro Hattori, Makoto Umeda, Yasuaki Tamura, Tatsuro Kimura, Hiroyuki Takahashi, Minoru Tanaka, Yusuke Tarumoto, Katsuki Adachi, Masaaki Mori, Takeo Sakaigaichi, and Michiko Hayano
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Saccharum spontaneum ,Veterinary medicine ,education.field_of_study ,QTL analysis ,biology ,Inoculation ,Population ,Plant Science ,Disease ,smut disease resistance ,GRAS-Di technology ,Plant disease resistance ,Quantitative trait locus ,biology.organism_classification ,Qtl analysis ,Genetic linkage ,Smut ,Genetics ,education ,Agronomy and Crop Science ,Research Paper - Abstract
Smut disease of sugarcane causes considerable yield losses and the use of resistant varieties is the best control practice. Our group identified a Japanese wild sugarcane with highly smut disease resistance named ‘Iriomote8’. In this study, we conducted QTL analysis for smut disease resistance using a mapping population derived from a resistant variety ‘Yaenoushie’, in which resistance is inherited from ‘Iriomote8’. We identified 4813 non-redundant markers using GRAS-Di technology and developed a linkage map of mapping parents. We evaluated smut disease resistance of the mapping population by the inoculation test. Consequently, a large number of clones did not show the disease symptoms and the distribution of smut disease incidence tended to be “L shaped”. Composite interval mapping detected an identical QTL for indices of smut disease incidence with a markedly high LOD score (26.6~45.6) at the end of linkage group 8 of ‘Yaenoushie’. This QTL explained approximately 50% of the cases of smut disease incidence. In the mapping population, there were no correlations between the indices of smut disease incidence and other agronomic traits. In conclusion, this QTL could be used for marker-assisted selection to significantly improve smut disease resistance without negative effects on other agronomic traits.
- Published
- 2021
12. Evaluation of early vigor under direct planting cultivation in sweet potato
- Author
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Takeo Sakaigaichi, Yumi Kai, Keisuke Suematsu, and Akira Kobayashi
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0106 biological sciences ,direct planting ,fungi ,Plant culture ,food and beverages ,Sowing ,genotypic difference ,sweet potato ,04 agricultural and veterinary sciences ,early vigor ,Biology ,01 natural sciences ,SB1-1110 ,Cutting ,Horticulture ,040103 agronomy & agriculture ,0401 agriculture, forestry, and fisheries ,Transplanting ,Cultivar ,Agronomy and Crop Science ,010606 plant biology & botany - Abstract
Direct planting – in which small storage roots are planted instead of transplanting stem cuttings – has been studied as a labor-saving system in sweet potato. Early vigor is important for cultivars used in direct planting because it affects their ability to compete with weeds. In this study, the genotypic difference in early vigor was evaluated. Twelve genotypes were tested in 2018 and 2019. Days to emergence, shoot dry matter yield, plant height, and NDVI were investigated as indicators of early vigor. Significant differences in days to emergence and shoot dry matter yields were observed among genotypes in both years. ‘Kyushu No.198ʹ was outstanding in terms of early vigor. A strong relationship between plant height and shoot dry matter yield was observed; this relationship was also observed with NDVI. Growth traits that can be monitored in a non-destructive way, such as plant height, are reliable predictors of shoot dry matter yield during early growth.
- Published
- 2020
13. Evaluation of sugarcane smut resistance in wild sugarcane (Saccharum spontaneum L.) accessions collected in Japan
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Taiichiro Hattori, Shin Irei, Takeo Sakaigaichi, Takayuki Mitsunaga, Michiko Hayano, S. Fukuhara, Minoru Tanaka, Makoto Matsuoka, Shoko Ishikawa, Yusuke Tarumoto, Yoshifumi Terajima, and Takayoshi Terauchi
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0106 biological sciences ,Germplasm ,Resistance (ecology) ,biology ,Inoculation ,Sugarcane smut ,Saccharum spontaneum ,smut resistance ,04 agricultural and veterinary sciences ,Plant disease resistance ,lcsh:Plant culture ,biology.organism_classification ,japan ,01 natural sciences ,Agronomy ,040103 agronomy & agriculture ,0401 agriculture, forestry, and fisheries ,lcsh:SB1-1110 ,Plant breeding ,Cultivar ,wild sugarcane ,Agronomy and Crop Science ,010606 plant biology & botany - Abstract
Sugarcane smut, caused by Sporisorium scitamineum, is one of the most important sugarcane diseases in Japan. Wild sugarcane, Saccharum spontaneum, is known to be a key breeding material to obtain high-yielding clones. In this study, we sought to identify Japanese wild sugarcane accessions with high resistance to smut. Thirty wild sugarcanes and three sugarcane cultivars were tested by the pinprick method. The results of the inoculation tests aided in identifying wild sugarcanes with high resistance to smut disease, namely JW90, Iriomote8, and Iriomote15. After screening the germplasm, progeny distribution of smut resistance from the inoculation test and dry matter productivity in the smut disease-free field were compared. The highly resistant wild sugarcane accession had a much better impact on progeny distribution of smut resistance compared with the susceptible accession. No relationship was found between smut resistance and dry matter productivity in both populations.
- Published
- 2019
14. Phenological Changes in the Chlorophyll Content and Its Fluorescence in Field-Grown Sugarcane Clones Under Over-Wintering Conditions
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Taiichiro Hattori, Michiko Hayano, Shin Irei, Katsuki Adachi, Yusuke Tarumoto, Takeo Sakaigaichi, Minoru Tanaka, Hiroka Tsuchida, and Jun-Ichi Sakagami
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0106 biological sciences ,Chlorophyll content ,Phenology ,Stem elongation ,Spring season ,Lowest temperature recorded on Earth ,04 agricultural and veterinary sciences ,Interspecific competition ,Biology ,01 natural sciences ,Horticulture ,040103 agronomy & agriculture ,0401 agriculture, forestry, and fisheries ,Cultivar ,Agronomy and Crop Science ,010606 plant biology & botany - Abstract
As a step toward breeding cultivars with tolerance to chilling stress, phenological changes in chlorophyll content (SPAD index) and its fluorescence (Fv/Fm) were investigated under over-wintering conditions using different sugarcane clones. A leading commercial cultivar in Japan, NiF8, and two interspecific lines, KY11-6114 and KY08-1200, were tested in this study. Daily minimum temperature decreased gradually with the advance of winter, and the lowest temperature of 1.2 °C was recorded in January. Although the temperature increased toward spring season, it remained below 10 °C until the end of experiment. Stem elongations in KY11-6114 and KY08-1200 during winter were significantly greater than in NiF8. The decrease in SPAD index was calculated from the difference between the beginning of winter and each measuring time. KY08-1200 and KY11-6114, with longer stem elongation, had a smaller decrease in SPAD index than NiF8 under over-wintering conditions. The Fv/Fm of all three clones decreased in January when the lowest temperature was recorded and recovered toward spring. Among three clones, KY08-1200 was less affected by chilling stress and presented a higher value of Fv/Fm up to the end of experiment. Considering these results, we concluded that the decreased chlorophyll content measured by the SPAD index was a simple indicator for screening chilling-tolerant clones.
- Published
- 2019
15. Dry Matter Production and Growth Characteristics of High Yielding Sugarcane Clones Developed by Back-crossing an Interspecific Hybrid with Commercial Cultivars
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Takayoshi Terauchi, Shoko Ishikawa, Yusuke Tarumoto, Takeo Sakaigaichi, Taiichiro Hattori, and Michiko Hayano
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Agronomy ,Genetics ,Dry matter ,Cultivar ,Interspecific competition ,Biology ,Agronomy and Crop Science ,High yielding ,Food Science - Published
- 2018
16. Development of a Sugarcane Pedigree Database for Breeders
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Takeo Sakaigaichi, Minoru Tanaka, Michiko Hayano, Yusuke Tarumoto, and Taiichiro Hattori
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0301 basic medicine ,03 medical and health sciences ,030104 developmental biology ,business.industry ,General Medicine ,Biology ,business ,Biotechnology - Published
- 2016
17. Detection of a major QTL related to smut disease resistance inherited from a Japanese wild sugarcane using GRAS-Di technology.
- Author
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Makoto Umeda, Takeo Sakaigaichi, Minoru Tanaka, Yusuke Tarumoto, Katsuki Adachi, Taiichiro Hattori, Michiko Hayano, Hiroyuki Takahashi, Yasuaki Tamura, Tatsuro Kimura, and Masaaki Mori
- Subjects
- *
NATURAL immunity , *DISEASE incidence , *SUGARCANE , *DISEASE nomenclature , *DISEASE mapping , *SYMPTOMS , *SUGARCANE growing - Abstract
Smut disease of sugarcane causes considerable yield losses and the use of resistant varieties is the best control practice. Our group identified a Japanese wild sugarcane with highly smut disease resistance named ‘Iriomote8’. In this study, we conducted QTL analysis for smut disease resistance using a mapping population derived from a resistant variety ‘Yaenoushie’, in which resistance is inherited from ‘Iriomote8’. We identified 4813 non-redundant markers using GRAS-Di technology and developed a linkage map of mapping parents. We evaluated smut disease resistance of the mapping population by the inoculation test. Consequently, a large number of clones did not show the disease symptoms and the distribution of smut disease incidence tended to be “L shaped”. Composite interval mapping detected an identical QTL for indices of smut disease incidence with a markedly high LOD score (26.6~45.6) at the end of linkage group 8 of ‘Yaenoushie’. This QTL explained approximately 50% of the cases of smut disease incidence. In the mapping population, there were no correlations between the indices of smut disease incidence and other agronomic traits. In conclusion, this QTL could be used for marker-assisted selection to significantly improve smut disease resistance without negative effects on other agronomic traits. [ABSTRACT FROM AUTHOR]
- Published
- 2021
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18. The Growth and Yield of the Forage Sugarcane Variety KRFo93-1 Cultivated with Three Harvests Per Year
- Author
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Shoko Ishikawa, Takeo Sakaigaichi, Yoshifumi Terajima, Takayoshi Terauchi, Yusuke Tarumoto, Makoto Matsuoka, Taiichiro Hattori, and Minoru Tanaka
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Agronomy ,Yield (wine) ,Genetics ,Forage ,Biology ,Agronomy and Crop Science ,Food Science - Published
- 2014
19. Feeding of Fodder-Sugarcane Silage to Holstein Cows
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Ikuo Hattori, Tomoyuki Suzuki, Yuko Kamiya, Masahito Tanaka, Takeo Sakaigaichi, Mitsuru Kamiya, Takayoshi Terauchi, and Kenzi Sato
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Ecology ,Silage ,Physiological condition ,Soybean meal ,food and beverages ,Biology ,Milk production ,Animal science ,Fodder ,Hay ,Animal Science and Zoology ,Composition (visual arts) ,Agronomy and Crop Science ,Relevant information ,Biotechnology - Abstract
To provide relevant information on utilizing fodder-sugarcane for dairy cows, we investigated the chemical composition, and long-term effect of fodder-sugarcane feeding on physiological aspects in non-lactating cows and milk production in lactating cows. The CP content of fodder-sugarcane silage (KRFo93-1; harvested 4 months after regrowth) was at the lowest level, whereas NDFom content peaked in roughage fed to lactating cows on conventional dairy farms. When 6 non-lactating Holstein cows were fed fodder-sugarcane silage with soybean meal and steam-rolled corn or sudangrass hay for 106 days, there were few changes in BW, hematological parameters, and blood metabolites throughout the experimental period. Seven lactating Holstein cows were fed TMR (TDN, 69%DM; CP, 15%DM) containing 0, 3, 5, 10, 15, or 20% fodder-sugarcane silage along with commercial concentrate (1.8 kg DM/cow/day). Milk yield and milk composition were unaffected by the proportion of fodder-sugarcane silage in the TMR. Conversely, the percentage of large particles (>19 mm) in TMR and in orts rose with an increasing proportion of fodder-sugarcane silage in TMR. The BUN concentration increased when cows were fed TMR containing over 15% fodder-sugarcane silage. These results suggest that fodder-sugarcane can be fed to cows without adversely affecting their physiological condition. However, for practical feeding to lactating cows, it is necessary to observe sorting against fodder-sugarcane silage.
- Published
- 2014
20. Effect of the Difference of K2O Fertilizer Application Level on the Growth and Nutrient Uptake of Forage Sugarcane in Multi-Ratooning Cultivation
- Author
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Takeo Sakaigaichi, Shoko Ishikawa, Shotaro Ando, Yoshifumi Terajima, Takayoshi Terauchi, Naoto Harada, Taiichiro Hattori, Minoru Tanaka, Makoto Matsuoka, and Yusuke Tarumoto
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Nutrient ,Agronomy ,Genetics ,engineering ,Forage ,Fertilizer ,Biology ,engineering.material ,Agronomy and Crop Science ,Ratooning ,Food Science - Published
- 2014
21. Effect of Stubble Shaving after High-Level Cutting on the Growth and Yield of Forage Sugarcane, KRFo93-1, under Multiple Ratooning Cultivation
- Author
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Makoto Matsuoka, Taiichiro Hattori, Akira Sugimoto, Yoshifumi Terajima, Takayoshi Terauchi, Takeo Sakaigaichi, Shoko Ishikawa, and Ikuo Hattori
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Forage sugarcane ,Crop yield ,Multiple ratooning cultivation ,Tiller (botany) ,Forage ,Dry matter yield ,Stubble shaving ,lcsh:Plant culture ,Stem length ,Ratooning ,Crop ,Agronomy ,Yield (wine) ,lcsh:SB1-1110 ,Dry matter ,Agronomy and Crop Science ,High-level cutting ,Mathematics - Abstract
In the production of sugarcane, stubble shaving that cuts the residual stubble of the previous crop is carried out to promote ratoon crop growth. On the other hand, in the production of feed crops, it is generally considered that high-level cutting increases the yield of the regrowth crop. In this study, the growth and yield of the forage sugarcane subjected to high-level cutting without stubble shaving (HC) were compared with those of the plants subjected to stubble shaving (Control) to clarify the necessity of stubble shaving in the cultivation of a forage sugarcane variety, KRFo93-1. The influence of high-level cutting on the growth and yield of ratoon crop was evaluated from the first ratoon crop (RC1) to sixth ratoon crop (RC6). Tiller number in the Control plot was not different from that in the HC plots in all ratoon crops from RC1 to RC6. Stem length was significantly larger in HC than in the Control plot in all ratoon crops at the initial stage of regrowth, and in RC1, RC3, RC5 and RC6 around the harvest time. Dry matter yield was significantly higher in HC than in the Control plot in RC1, RC3, RC5, RC6 and in the sum of the ratoon crops. Although no significant difference was observed in RC2 or RC4, the dry matter yield of HC exceeded that of Control plot. The increase in the dry matter yield of HC was due to an enhancement of stem growth, since the single stem dry weight were larger in HC than in Control plot. Thus, cultivation management without stubble shaving is recommended in KRFo93-1.
- Published
- 2013
22. Identification and characterization of intergeneric hybrid of commercial sugarcane (Saccharum spp. hybrid) and Erianthus arundinaceus (Retz.) Jeswiet
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Kunihiro Ujihara, Yoshifumi Terajima, S. Fukuhara, S. Irei, Takeo Sakaigaichi, A. Sugimoto, and M. Matsuoka
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Saccharum ,Erianthus arundinaceus ,biology ,Drought tolerance ,Botany ,Genetics ,food and beverages ,Plant physiology ,Plant Science ,Horticulture ,Production efficiency ,biology.organism_classification ,Agronomy and Crop Science - Abstract
To generate drought-tolerant sugarcane, we obtained hybrid lines by the intergeneric hybridization of a Saccharum spp. hybrid with Erianthus arundinaceus. A test using 5S rDNA as a marker identified five intergeneric hybrid lines with a production efficiency of approximately 3 %. There was difficulty in maintaining these hybrid lines because they were weak, and one line only survived. We examined the amount of roots and polyphenol content of the roots, which are related to drought tolerance, in the surviving line. Although the shoot–root ratio, an indicator of the amount of roots, was high in sugarcane and low in E. arundinaceus, the shoot–root ratio of the hybrid line was intermediate between those of the parents. Regarding the polyphenol content of the roots, only the surface of a root sample was stained by NaNO3 in sugarcane, whereas the entire cross section of a root sample was stained in E. arundinaceus. For the hybrid line, the entire cross section of the root was faintly stained. From these results, we concluded that the roots characteristics were introduced by the intergeneric hybridization between a Saccharum spp. hybrid and E. arundinaceus.
- Published
- 2012
23. Sugarcane Breeding of Early Maturing Clone with High Sucrose Content for Earlier Harvest in Japan
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Makoto Matsuoka, Yoshifumi Terajima, Takayoshi Terauchi, Akira Sugimoto, Shin Irei, and Takeo Sakaigaichi
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clone (Java method) ,High sucrose ,Brix ,Ecology ,Breeding program ,Harvest season ,fungi ,food and beverages ,Sowing ,Top (position) ,Horticulture ,Geography ,Agronomy ,Animal Science and Zoology ,Cultivar ,Agronomy and Crop Science ,Biotechnology - Abstract
Sugarcane production in Japan dropped to a record low of 1,186,000 tons in 2004. Severe drought and tropical storms (typhoons) often reduce sugarcane yields. In order to avoid these environmental stresses, an early harvest system and early maturing cultivars are required. The maturing characteristics of one early maturing clone (“KY96T-547”) were thus investigated in breeding experiments to clarify effective methods of identifying early maturing clones. The results of spring planting crops in a regular breeding program and autumn planting crops intended for early harvest were also analyzed. Among the spring planting crops, the early maturing clone exhibited earlier increases in brix value at the top position of the stem, with higher orders of brix for this clone also being observed at the top. The coefficient of variance for the top brix among approximately 50 clones was higher than that for other stem positions. The coefficient of variance was higher at the beginning of October, when the brix values of early maturing clones increased. This is the best time for screening at the research site . Among the autumn planting crops, the early maturing clone matured October or November at the same level as in the regular harvest season.
- Published
- 2012
24. Effects of sugarcane silage on feed intake and growth rate of Japanese Black steers during rearing period
- Author
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Ikuo Hattori, Mitsuru Kamiya, Takeo Sakaigaichi, Kenji Sato, Yusuke Tarumoto, Tomoyuki Suzuki, Takayoshi Terauchi, Yuko Kamiya, and Yoshirou Hayashi
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Animal science ,Agronomy ,Silage ,Period (gene) ,Japanese Black cattle ,Growth rate ,Biology - Published
- 2011
25. Chemical composition and in situ degradability of two varieties of sugarcane at different growth stages in subtropical Japan
- Author
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Yoshifumi Terajima, Ikuo Hattori, Tomoyuki Suzuki, Makoto Matsuoka, Masahito Tanaka, Takeo Sakaigaichi, and Yuko Kamiya
- Subjects
business.industry ,New Variety ,Plant Science ,Biology ,Ratooning ,Cattle feeding ,Crop ,Neutral Detergent Fiber ,Agronomy ,Hay ,Livestock ,Dry matter ,business ,Agronomy and Crop Science ,Ecology, Evolution, Behavior and Systematics - Abstract
Sugarcane is an important crop and also a potential feed resource in the Southwestern Islands of Japan. We investigated chemical composition and in situ degradability of two Japanese sugarcane varieties, a common variety, NiF 8 and a new variety developed for cattle feed, KRFo 93-1. We also evaluated these sugarcanes as alternatives to sugarcane top and imported oaten hay, i.e. commonly used roughages in the Southwestern Islands. The crude protein (CP) contents of both sugarcane varieties were usually lower than those of sugarcane top and oaten hay, showing a decrease with advancing maturity after ratooning. On the other hand, the non-fiber carbohydrate contents of both varieties and the effective degradability of dry matter in NiF 8 increased with advancing maturity, possibly due to sucrose accumulation. The effective degradability of neutral detergent fiber for KRFo 93-1 decreased with advancing maturity, being lower than that for sugarcane top and close to that of oaten hay. Overall, highest nutritional benefits would be obtained at a later stage harvest for NiF 8 and at an earlier stage harvest for KRFo 93-1. CP and/or energy supplements are needed when either of the sugarcane varieties is used as an alternative to sugarcane top or imported oaten hay.
- Published
- 2010
26. Effects of high nitrogen application on the dry matter yield, nitrogen content and nitrate-N concentration of sugarcane
- Author
-
Yoshifumi Terajima, Makoto Matsuoka, Takeo Sakaigaichi, Shotaro Ando, and Shoko Ishikawa
- Subjects
biology ,business.industry ,Crop yield ,Soil Science ,chemistry.chemical_element ,Plant Science ,biology.organism_classification ,Nitrogen ,Saccharum ,chemistry.chemical_compound ,Nutrient ,Agronomy ,Nitrate ,chemistry ,Environmental science ,Livestock ,Dry matter ,Cultivar ,business - Abstract
In Japan a high dependency on imported food, particularly livestock feed, has resulted in the accumulation of large amounts of nutrients, especially nitrogen, in the form of livestock manure. Cultivating feed crops that can take up a large amount of N would not only mitigate the water pollution caused by the nitrate leached from the livestock sector, but would also improve food self sufficiency. Sugarcane (Saccharum spp.) is considered to be a promising candidate in this respect. Two field experiments were conducted in 2006 and 2007 in Kagawa to evaluate the dry matter (DM) yield, N content and nitrate-N concentration of sugarcane under high N input. The first experiment was designed as a factorial experiment with two factors, varieties/lines/clones and N rates set at two levels, 30 g m−2 year−1 and 60 g m−1 year−1, with three replicates. In the second experiment, 30 varieties/lines/clones of sugarcane and related genera as well as control crops were planted (n = 2) and a single N rate of 45 g m−...
- Published
- 2009
27. Diurnal and Phenological Changes in the Rate of Nitrogen Transportation Monitored by Bleeding in Field-GrownRice Plants (Oryza sativaL.)
- Author
-
Jun Abe, Takeshi Yamaguchi, Takeo Sakaigaichi, and Shigenori Morita
- Subjects
Root length ,Phenology ,Diurnal temperature variation ,chemistry.chemical_element ,lcsh:Plant culture ,Biology ,biology.organism_classification ,Nitrogen ,Animal science ,Agronomy ,chemistry ,Tiller ,Diurnal change ,lcsh:SB1-1110 ,Poaceae ,Rice ,Savia ,Bleeding sap ,Nitrogen uptake ,Phenological change ,Agronomy and Crop Science ,Nitrogen cycle ,Panicle - Abstract
Nitrogen uptake is essential for rice growth and yield. Thus, the development of a simple and rapid method for monitoring nitrogen absorption is strongly required. We examined the fundamental properties of nitrogen transportation monitored by bleeding, including diurnal and phenological changes, to discuss whether the analysis of bleeding sap could be used for monitoring nitrogen uptake by rice. The rate of nitrogen transportation monitored by bleeding was estimated from a combination of the nitrogen concentration in bleeding sap and bleeding rate. We found a clear diurnal change in the rate of nitrogen transportation monitored by bleeding; it was higher in the daytime than at night. In this study, the diurnal change in nitrogen uptake was not influenced by soil temperature but by the light condition. The rate of nitrogen transportation monitored by bleeding showed a phenological change with a peak around the panicle formation stage, while the bleeding rate peaked at around heading and was correlated with root length. The nitrogen concentration in bleeding sap continued to decrease gradually from the early growth stage. The cumulative amount of nitrogen uptake estimated by the bleeding sap analysis was less than half of that estimated by the plant analysis before the maximum tiller number stage, but the difference between these values decreased with plant growth. There was a significant positive correlation between the cumulative amount of nitrogen uptake estimated by these analyses throughout the growing period.
- Published
- 2007
28. Structure and Function of Rice Root System under FACE Condition
- Author
-
Shigenori MORITA, Takeo SAKAIGAICHI, Jun ABE, Kazuhiko KOBAYASHI, Masumi OKADA, Hiroyuki SHIMONO, Yasuhiro YAMAKAWA, Han-Yong KIM, and Toshihiro HASEGAWA
- Subjects
Atmospheric Science ,Agronomy ,Face (geometry) ,Rice root ,Environmental science ,Agronomy and Crop Science ,Structure and function - Published
- 2005
29. Serial Change of Nitrogen Uptake after Topdressing for Rice Plants
- Author
-
Jun Abe, Takeshi Yamaguchi, Takeo Sakaigaichi, and Shigenori Morita
- Subjects
Agronomy ,chemistry ,Genetics ,chemistry.chemical_element ,Biology ,Agronomy and Crop Science ,Nitrogen ,Rice plant ,Food Science - Abstract
ポットおよび水田で栽培した水稲品種コシヒカリを用いて, 追肥窒素が水稲に吸収される様相を把握するため, 追肥後における茎基部からの出液速度と出液の窒素濃度から出液中の窒素量を推定し, その経時的な推移について検討した. ポット, 圃場試験ともに, 出液の窒素濃度は硫安追肥後6時間目以降に上昇が認められ, 24時間目に最大となった後は漸減した. 出液の窒素濃度の上昇までに6時間以上が経過しているが, これは追肥が土壌中で拡散して根に吸収されて木部導管に入るまでに要する時間と考えられた. 圃場試験の追肥後168時間目では, 追肥区の出液の窒素濃度が追肥を施用しない対照区と同じレベルまで低下しており, 追肥の吸収は終了したと考えられた. なお, 出液の窒素分析の結果から, 圃場試験の追肥後168時間目での追肥硫安の利用率を推定すると約55%であった. 一方, 出液速度は, ポット, 圃場試験ともに, 出液の窒素濃度の上昇から12時間以上が経過した後に, 追肥区で対照区よりも高くなった. この時間的なズレが生じた原因は, 導管液中の窒素化合物の増加が直接的に根の吸水を促進したというよりは, 追肥による根の生理機能の向上により, 間接的に根の能動的吸水が促進されたためと考えられた. 葉色の反応はさらに遅れて, 追肥後48時間目に初めて追肥区が対照区よりも高くなった. 以上のように, 出液の窒素分析から, 追肥が吸収される様相を詳細かつ迅速に把握できることが明らかとなり, さらに追肥窒素の利用率や土壌中での挙動についても把握できる可能性が示された.
- Published
- 2005
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