摘要
为探明父本结实率对杂交中稻组合结实率的影响,以7个父本品种和相应杂交组合为材料,对父本结实率与相应组合结实率的相关性进行了分析.结果表明,父本品种结实率对组合结实率普遍存在程度不同的正相关影响,尤以明恢63,桂99,R838的影响明显.利用生态点的差异,可以有效鉴定出哪些父本品种对组合的结实率影响大;利用父本品种间对组合结实率影响的差异,可以有针对性的筛选出抗高温或低温的组合.
To explore the influences of setting rate of male parent varieties on that of their medium hybrid rice combinations, the correlation of setting rate between male parents and their corresponding combinations was analyzed with 7 male parent varieties and their corresponding combinations. The results showed that the setting rate of parent varieties has positive influences on that of combinations in general, especially for parent variety ＂Minghui 63＂, ＂Gui 99＂ and ＂R838＂. It could be tested that parent varieties influences on the setting rate of combinations were stronger if planted on different ecological sites; Some combinations resistant to high or low temperature could be bred on purpose by taking the influences into account.
出处
《湖南农业大学学报（自然科学版）》
CAS
CSCD
北大核心
2006年第1期5-7,共3页
Journal of Hunan Agricultural University(Natural Sciences)
基金
湖南省农业厅项目(湘农业计[2004]374号)
关键词
杂交中稻
父本品种
结实率
相关性
medium hybrid rice
male parent varieties
setting rates
orrelation
