[Objective] The research aimed to understand the high-yielding technique in intersubspecific hybrid rice Yongyou No.12. [Method] The correlation analysis, regression analysis and path analysis of intersubspecific hybr...[Objective] The research aimed to understand the high-yielding technique in intersubspecific hybrid rice Yongyou No.12. [Method] The correlation analysis, regression analysis and path analysis of intersubspecific hybrid rice Yongyou No. 12 were conducted based on the data of its ear, grain and weight with yield higher than 10 500 kg/hm^2. [Result] The enhancement of effective ears would restrain the number of per ear total grains. It was found that the direct contributions of main economic traits to yield were determined to be effective ear〉total grains per ear〉 seed setting rate〉l 000-grain weight. [Conclusion] The high-yielding cultivation techniques were suggested as follows： besides necessary ear number, grain number per ear should be focused with a consideration to 1 000-grain weight.展开更多
[Objective] The research aimed to understand the genetic control of seed germination characters in dicotyledon plant using a suitable genetic model. [Method] An investigation of three seedling traits of seven parents ...[Objective] The research aimed to understand the genetic control of seed germination characters in dicotyledon plant using a suitable genetic model. [Method] An investigation of three seedling traits of seven parents and their F1s was undertaken in a diallel cross of sponge gourd （Luffa cylindrical Roem.） by germinating the seeds in two environments. A genetic model is developed to analyze the embryo effects as well as genotype × environment （GE） interaction effects of germination characters. [Result] Variations of the root length, shoot length and shoot dry weight were affected by genetic effects and environmental interaction effects. The three seedling traits were mainly controlled by genetic effect. Embryo dominance effects were the main genetic effect for root length and shoot length. Among the GE interaction effects, there only existed embryo dominance interaction effects for the three seedling traits. General narrow-sense heritabilities of shoot length and shoot dry weight were 7.0% and 27.3%, respectively. [Conclusion] The present modified genetic model could be used for investigating the genetic control of seed germination characters and seedling traits in dicotyledon plant.展开更多
[Objective] The research aimed to understand the high and efficiency technique in intersubspecific hybrid rice Yongyou No.9.[Method] We conducted the correlation analysis,regression analysis and path analysis of inter...[Objective] The research aimed to understand the high and efficiency technique in intersubspecific hybrid rice Yongyou No.9.[Method] We conducted the correlation analysis,regression analysis and path analysis of intersubspecific hybrid rice Yongyou No.9 based on the data of its ear,grain and weight at different yield levels.[Result]The performance of ear,grain and weight in Yongyou No.9 showed significant difference among different yield levels.The enhancement of effective ears would restrain the number of per ear total grains.It was found that the direct contributions of main economic traits to yield were determined to be per ear total grainseffective earseed setting rate1 000-grain weight.[Conclusion]The high-yield and effective cultivation techniques were suggested as follows：on the basis of certain effective ear number,grain number per ear should be mainly focused with a consideration to 1 000-grain weight.展开更多
[Objective] The paper was focused on the way how to increase the yield of hybrid rice Zhongzheyou No.8. [Method] The relationship among yield-related traits and their contribution to yield were investigated through co...[Objective] The paper was focused on the way how to increase the yield of hybrid rice Zhongzheyou No.8. [Method] The relationship among yield-related traits and their contribution to yield were investigated through correlation analysis, regression analysis and path analysis. [Result] The performance of ear, grain and weight in Zhongzheyou No.8 showed significant difference among yield levels. The enhancement of effective ears would restrain the number of total grains per ear. It was found that the direct contributions of main economic traits to yield were： number of fil ed grains per ear 〉 number of effective ears 〉1 000-grain weight 〉number of total grains per ear. [Conclusion] The promotion of high-yielding techniques was suggested as fol ows： on the basis of certain number of effective ears, number of fil ed grains per ear should be mainly focused with a consideration to grain weight.展开更多
基金Suppored by the Science and Technology Plan of Taizhou City(121KY15)~~
文摘[Objective] The research aimed to understand the high-yielding technique in intersubspecific hybrid rice Yongyou No.12. [Method] The correlation analysis, regression analysis and path analysis of intersubspecific hybrid rice Yongyou No. 12 were conducted based on the data of its ear, grain and weight with yield higher than 10 500 kg/hm^2. [Result] The enhancement of effective ears would restrain the number of per ear total grains. It was found that the direct contributions of main economic traits to yield were determined to be effective ear〉total grains per ear〉 seed setting rate〉l 000-grain weight. [Conclusion] The high-yielding cultivation techniques were suggested as follows： besides necessary ear number, grain number per ear should be focused with a consideration to 1 000-grain weight.
基金Suppored by Science Program Foundation of Taizhou City(102TG01)~~
文摘[Objective] The research aimed to understand the genetic control of seed germination characters in dicotyledon plant using a suitable genetic model. [Method] An investigation of three seedling traits of seven parents and their F1s was undertaken in a diallel cross of sponge gourd （Luffa cylindrical Roem.） by germinating the seeds in two environments. A genetic model is developed to analyze the embryo effects as well as genotype × environment （GE） interaction effects of germination characters. [Result] Variations of the root length, shoot length and shoot dry weight were affected by genetic effects and environmental interaction effects. The three seedling traits were mainly controlled by genetic effect. Embryo dominance effects were the main genetic effect for root length and shoot length. Among the GE interaction effects, there only existed embryo dominance interaction effects for the three seedling traits. General narrow-sense heritabilities of shoot length and shoot dry weight were 7.0% and 27.3%, respectively. [Conclusion] The present modified genetic model could be used for investigating the genetic control of seed germination characters and seedling traits in dicotyledon plant.
基金Supported by Science Program Foundation of Taizhou(091KY01)~~
文摘[Objective] The research aimed to understand the high and efficiency technique in intersubspecific hybrid rice Yongyou No.9.[Method] We conducted the correlation analysis,regression analysis and path analysis of intersubspecific hybrid rice Yongyou No.9 based on the data of its ear,grain and weight at different yield levels.[Result]The performance of ear,grain and weight in Yongyou No.9 showed significant difference among different yield levels.The enhancement of effective ears would restrain the number of per ear total grains.It was found that the direct contributions of main economic traits to yield were determined to be per ear total grainseffective earseed setting rate1 000-grain weight.[Conclusion]The high-yield and effective cultivation techniques were suggested as follows：on the basis of certain effective ear number,grain number per ear should be mainly focused with a consideration to 1 000-grain weight.
基金Supported by Science and Technology Project of Taizhou City(121KY15)~~
文摘[Objective] The paper was focused on the way how to increase the yield of hybrid rice Zhongzheyou No.8. [Method] The relationship among yield-related traits and their contribution to yield were investigated through correlation analysis, regression analysis and path analysis. [Result] The performance of ear, grain and weight in Zhongzheyou No.8 showed significant difference among yield levels. The enhancement of effective ears would restrain the number of total grains per ear. It was found that the direct contributions of main economic traits to yield were： number of fil ed grains per ear 〉 number of effective ears 〉1 000-grain weight 〉number of total grains per ear. [Conclusion] The promotion of high-yielding techniques was suggested as fol ows： on the basis of certain number of effective ears, number of fil ed grains per ear should be mainly focused with a consideration to grain weight.
