【摘要】 分析小麦Ｔ 型雄性不育系种子发芽率的影响因素结果表明，小麦灌浆中后期降水可显著增加不育系种子的霉粒率和穗发芽率，从而降低了种子发芽率；不同不育系对降水的反应差异显著，粉质不育系种子的相对皱缩度、霉粒率与穗发芽率之和均显著高于半角质和角质不育系；在灌浆中后期降水年份，蜡熟期收获不育系可显著降低种子霉粒率和穗发芽率，而不会降低产种量。更多还原

【Abstract】 The influencing factors of the germination percentage of the T cytoplasm male sterile lines in wheat are analyzed.The results show that:The precipitation during middle and later milking stage can increase the rate of mouldy grain and spike sprout,thereby it reduces the germination percentage of the T cytoplasm male sterile lines.There is significant difference among different male sterile lines as regards to precipitation.The sum of relative wrinkle degree,and mouldy grain and spike sprout rate of powdered male sterile lines is higher than stiff and half stiff male sterile lines.In the year that there is precipitation during the middle and later milking stage,the harvest of the male sterile lines in waxy ripe can obviously reduce the rate of mouldy grain and spike sprout,but it does not affect the yield.更多还原