Combining Ability and Breeding Potential of Rapeseed Elite Lines for Pod Shatter Resistance
文献类型: 外文期刊
作者: Liu Jia 1 ; Mei De-sheng 1 ; Li Yun-chang 1 ; Cui Jia-cheng 1 ; Wang Hui 1 ; Peng Peng-fei 1 ; Fu Li 1 ; Hu Qiong 2 ;
作者机构: 1.Chinese Acad Agr Sci, Oil Crops Res Inst, Minist Agr, Key Lab Biol & Genet Improvement Oil Crops, Wuhan 430062, Peoples R China
2.Chinese Acad Agr Sci, Oil Crops Res Inst, Minist Agr, Key Lab Biol & Genet Improvement Oil Crops, Wuhan 430062, Peoples R
关键词: rapeseed;pod shatter resistance;elite lines;breeding potential
期刊名称:JOURNAL OF INTEGRATIVE AGRICULTURE ( 影响因子:2.848; 五年影响因子:2.979 )
ISSN: 2095-3119
年卷期: 2013 年 12 卷 3 期
页码:
收录情况: SCI
摘要: Pod shatter resistance of rapeseed is of great importance for modern farming practice. In order to determine the combining ability of elite inbred lines and the breeding potential of rapeseed hybrids in terms of pod shatter resistance, analysis of a 6x6 incomplete diallel cross was conducted at two locations. Results showed that a significant variation existed among breeding lines and their F-1 hybrids for pod shatter resistant index (SRI), pod length and width. Pod shatter resistance was significantly positively correlated with pod length. The general combining ability (GCA) effects (GCA=1.58) played a more important role than specific combining ability (SCA) effects (SCA=0.20) for pod shatter trait. The elite lines R1, 1019B and 1055B displayed significant positive GCA effects for pod shatter resistance. Four crosses (1019BxR1, 1015BxR1, 6098BxR1, and 8908BxR1) with high mean performance and positive SCA effects were recommended for developing new hybrids for mechanical harvest in the middle reaches of the Yangtze River.
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