摘要
采用 Ｇｒｉｆｆｉｎｇ 方法Ⅰ ，利用６ ×６ 完全 双 列杂 交对 旱 地冬 小麦 主 要性 状 的配 合力 、反 交效应和遗 传规律进 行了研 究。结果 表明，研究 的８ 个性 状中， 株高、主穗 长、千粒 重、单 株重 的一 般配合力、特殊配合 力和反交 效应方 差达显著 或极显 著水平；穗 下节 长、成 穗率 的一 般配 合力 和反 交效应方差 达显著差 异，穗粒 数仅反 交效 应 方差 达显 著 水平 ，而 结实 小穗 三 种方 差均 不 显著 。大 多数性状的 遗传背景 是加性 基因效应 占优 势； 旱地 小麦 农 艺性 状 具有 较高 的 遗传 力， 而产 量性 状 具有较低的 遗传力 。
Griffing′s method I and 6×6 diallel cross were employed to study the combining ability,reciprocal effects and genetic law of the major characters of winter wheat growing on dryland.The results showed that general combining ability,special combining ability and reciprocal effects of plant height,length of main ear,1000 grain weight,weight per plant within all the 8 characters studied were significant or high significant difference.The general combining ability and reciprocal effects of the length of ear stem and the rate of efficient ear were significant difference.The reciprocal effect of grains per ear was signficant difference.All three effects of fertile spikelet were not significant.The genetic background for much of characters was dominated by additive genetic effects.The agronomic characters of wheat growing on dryland have high hereditary capacity,while yield characters of that have low hereditary capacity.
出处
《华北农学报》
CSCD
北大核心
1999年第3期19-24,共6页
Acta Agriculturae Boreali-Sinica
关键词
旱地
冬小麦
配合力
遗传力
Winter wheat growing on dryland
Combining ability
Hereditary capacity
