The availability of favorable genetic diversity is a thriving vitality for the success of a breeding program.It provides a firm basis of selecting superior breeding lines for the development of high yielding crop geno...The availability of favorable genetic diversity is a thriving vitality for the success of a breeding program.It provides a firm basis of selecting superior breeding lines for the development of high yielding crop genotypes.In this context,present investigation aimed to generate information on genetic divergence and character association in a diversity panel of 123 local and exotic soybean genotypes.Analysis of variance revealed significant response of the evaluated genotypes based on studied attributes.It depicted the probability of selecting desirable soybean genotypes by focusing on character association studies and genetic diversity analysis.Correlation analysis revealed that seed yield per plant showed high positive correlation with 100-seed weight followed by pods per plant and plant height.Furthermore,path coefficient analysis exposed that pods per plant had maximum direct contribution in seed yield per plant followed by 100-seed weight,days to flowering and SPAD measurement.Genotype named“G-10”showed maximum yield per plant followed by 24607,G-52,24593,Arisoy,24566,17426,A-3127,24570 and 24567.Genetic diversity analysis grouped the evaluated germplasm into 17 clusters.All clusters showed zero intra-cluster variability;while inter-cluster divergence ranged from 9.00 to 91.11.Cluster V showed maximum inter-cluster distance with cluster XII followed by that of between V and VIII.Moreover,cluster IV with superior genotypes(G-10,24607,24593 and 24566),VI(17426 and 24567),XIII(24570)and X(Arisoy and G-52)showed above mean values for most of the studied characters.Overall,the results of hybridization between the superior genotypes of these cluster pairs might be useful for soybean breeding with improving agronomic traits and adaptability.展开更多
During the past ten years we did and are doing 10 generations in suburbs of Beijing from 1991-2001. In the same time we are doing 10 generation of soybean breeding near Sanya on Hainan Island during the October to May...During the past ten years we did and are doing 10 generations in suburbs of Beijing from 1991-2001. In the same time we are doing 10 generation of soybean breeding near Sanya on Hainan Island during the October to May. We made cross 398 combinations and a lot of propagation of soybean elite. We select a best local popularized variey for cross with soybean variety with 1-2 best character for breeding, for example high yielding, high oil or high protein content, high resistance to nematode and others We made alternate breeding in North and on South. In the same time we test breeding materials in two conditions: soil with high fertility and low fertility. Finally, we released two soybean cultivars: Zhonghuang 12 and Zhonghuang 13,and two cultivars will released this year. We test more than 10 soybean lines in 15 provinces. We got a good line with high oil content and high protein content. And we developed several soybean lines resistant to soybean cyst nematode.展开更多
With the support by the National Natural Science Foundation of China and the'Strategic Priority Research Program'of the Chinese Academy of Sciences,a collaborative study by the research groups led by Professor...With the support by the National Natural Science Foundation of China and the'Strategic Priority Research Program'of the Chinese Academy of Sciences,a collaborative study by the research groups led by Professors Tian Zhixi(田志喜),Wang Guodong(王国栋),and Zhu Baoge(朱保葛)from the展开更多
基金The authors extend their appreciation to Researchers Supporting Project No.(RSP2023R298),King Saud University,Riyadh,Saudi Arabia.
文摘The availability of favorable genetic diversity is a thriving vitality for the success of a breeding program.It provides a firm basis of selecting superior breeding lines for the development of high yielding crop genotypes.In this context,present investigation aimed to generate information on genetic divergence and character association in a diversity panel of 123 local and exotic soybean genotypes.Analysis of variance revealed significant response of the evaluated genotypes based on studied attributes.It depicted the probability of selecting desirable soybean genotypes by focusing on character association studies and genetic diversity analysis.Correlation analysis revealed that seed yield per plant showed high positive correlation with 100-seed weight followed by pods per plant and plant height.Furthermore,path coefficient analysis exposed that pods per plant had maximum direct contribution in seed yield per plant followed by 100-seed weight,days to flowering and SPAD measurement.Genotype named“G-10”showed maximum yield per plant followed by 24607,G-52,24593,Arisoy,24566,17426,A-3127,24570 and 24567.Genetic diversity analysis grouped the evaluated germplasm into 17 clusters.All clusters showed zero intra-cluster variability;while inter-cluster divergence ranged from 9.00 to 91.11.Cluster V showed maximum inter-cluster distance with cluster XII followed by that of between V and VIII.Moreover,cluster IV with superior genotypes(G-10,24607,24593 and 24566),VI(17426 and 24567),XIII(24570)and X(Arisoy and G-52)showed above mean values for most of the studied characters.Overall,the results of hybridization between the superior genotypes of these cluster pairs might be useful for soybean breeding with improving agronomic traits and adaptability.
文摘During the past ten years we did and are doing 10 generations in suburbs of Beijing from 1991-2001. In the same time we are doing 10 generation of soybean breeding near Sanya on Hainan Island during the October to May. We made cross 398 combinations and a lot of propagation of soybean elite. We select a best local popularized variey for cross with soybean variety with 1-2 best character for breeding, for example high yielding, high oil or high protein content, high resistance to nematode and others We made alternate breeding in North and on South. In the same time we test breeding materials in two conditions: soil with high fertility and low fertility. Finally, we released two soybean cultivars: Zhonghuang 12 and Zhonghuang 13,and two cultivars will released this year. We test more than 10 soybean lines in 15 provinces. We got a good line with high oil content and high protein content. And we developed several soybean lines resistant to soybean cyst nematode.
文摘With the support by the National Natural Science Foundation of China and the'Strategic Priority Research Program'of the Chinese Academy of Sciences,a collaborative study by the research groups led by Professors Tian Zhixi(田志喜),Wang Guodong(王国栋),and Zhu Baoge(朱保葛)from the
