Inheritance and Availability of High Grain Number Per Spike in Two Wheat Germplasm Lines

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	Inheritance and Availability of High Grain Number Per Spike in Two Wheat Germplasm Lines
	Chen Dan 1; Zhang Jinpeng 1; Wang Jiansheng 2; Yang Xinming 1; Liu Weihua 1; Gao Ainong 1; Li Xiuquan 1; Li Lihu 1
刊名	Journal of Integrative Agriculture
	2012
卷号	11 期号:9 页码:1409-1416
关键词	wheat high grain number per spike inheritance yield breeding
ISSN号	2095-3119
英文摘要	Grain number per spike (GNPS) is a major factor in wheat yield breeding. The development of high GNPS germplasm is widely emphasized in wheat-yield breeding. This paper reported two high GNPS wheat germplasm lines, Pubing 3228 and Pubing 3504, which had a stable and wide adaptability to different ecological regions. By exploring a nested cross design with reciprocals using Pubing 3228 or Pubing 3504 as a common parent and investigating the GNPS phenotypes of F_1 hybrids in 2007-2008 and F_2 populations in 2008-2009 of different cross combinations, the narrow-sense GNPS heritability was up to 49.58 and 52.23%, respectively. Genetic model analysis predictions suggested that GNPS in Pubing 3228 and Pubing 3504 was mainly controlled by additive genetic effects. Correlation analysis results between GNPS and 1 000- kernel weight (TKW) of F_ 2 populations showed that TKW was not influenced with the increase of GNPS. The good coordination among three yield components of spike number per plant (SNPP), GNPS, and TKW in the F _2 segregating population implied that selection of good candidate individuals in breeding programs would be relatively straightforward. Overall, our results indicated that Pubing 3228 and Pubing 3504 are two potential germplasm lines for yield improvement of GNPS in pedigree selection of wheat breeding.
学科主题	农作物
语种	中文
内容类型	期刊论文
源URL	[http://111.203.20.206/handle/2HMLN22E/106110]
专题	作物科学研究所
作者单位	1.Institute of Crop Sciences, Chinese Academy of Agricultural Sciences, National Key Facility for Crop Gene Resources and Genetic Improvement, Beijing, 100081 2.Hybrid Rapeseed Research Center of Shaanxi Province, Shaanxi Rapeseed Branch of National Oil Crops Genetic Improvement Center, Dali, 715105
推荐引用方式 GB/T 7714	Chen Dan,Zhang Jinpeng,Wang Jiansheng,et al. Inheritance and Availability of High Grain Number Per Spike in Two Wheat Germplasm Lines[J]. Journal of Integrative Agriculture,2012,11(9):1409-1416.
APA	Chen Dan.,Zhang Jinpeng.,Wang Jiansheng.,Yang Xinming.,Liu Weihua.,...&Li Lihu.(2012).Inheritance and Availability of High Grain Number Per Spike in Two Wheat Germplasm Lines.Journal of Integrative Agriculture,11(9),1409-1416.
MLA	Chen Dan,et al."Inheritance and Availability of High Grain Number Per Spike in Two Wheat Germplasm Lines".Journal of Integrative Agriculture 11.9(2012):1409-1416.