摘要
白皮小麦品种间穗发芽敏感性有极显著的差异。白皮小麦品种中穗发芽敏感性有三种类型,即以种子深休眠为主要机制的低敏感型、以种子浅休眠和穗部因子保护作用为机制的中敏感型和高敏感型。黄熟期水层纸巾穗发芽7天试验,方法简便而高效,适用性好,能兼顾多种机制抗穗发芽材料的筛选鉴定。本文还对白皮小麦抗穗发芽育种选择指标进行了探讨。
Susceptibility of spike spouting was found very significantly different among varieties of white wheat. There were three types of susceptibilities: Low (Deep dormancy was thought to be the main mechanism), medium (Both shallow dormancy and spike-Protection were the mechanism), and high. Sprouting tests with spikes rolled in paper towel, stood, in dishes of water for 7 days were considered to be the most simple, effective, and realizable method for screening spike-sprouting susceptibility at yellow mature period. The selection criteria in breeding white wheat variety with spikes resistible to sprouting was also discussed in this paper.
关键词
小麦
白皮种
穗发芽
鉴定
Wheat variety
Sprouting susceptibility
Determination
