摘要
为了研究不同春小麦品种穗发芽的机制,利用整穗发芽率、籽粒发芽率、籽粒+芒发芽率、籽粒+颖壳发芽率、籽粒+穗轴发芽率和籽粒+芒+颖壳+穗轴发芽率6个试验处理,探讨不同抗性春小麦品种穗发芽的抗性机制。结果表明:参试品种整穗发芽率都明显低于籽粒发芽率;参试品种的籽粒发芽率显著高于籽粒+芒+颖壳+穗轴发芽率;籽粒发芽率与籽粒+芒发芽率、籽粒+颖壳发芽率、籽粒+穗轴发芽率,因品种的不同而有所差异。表明芒+颖壳+穗轴共同对籽粒发芽有抑制作用,芒、颖壳、穗轴单独对籽粒发芽的作用因品种的不同而不同。
In order to study mechanism of resistance for pre-harvest sprouting in spring wheat,combining with the germination test of spike,seed,seed＋awn,seed＋stalk,seed ＋glumes,and seed＋awn＋stalk＋glumes,were used to find out the mechanism of pre-harvest sprouting resistance of the spring wheat cultivars.The results showed that germination rate of whole spike was lower than that of seed;germination rate of seed was significantly higher than that of seed＋awn＋stalk＋glumes treatment;it was different from according to different varieties for seed and seed ＋awn,seed ＋glumes,seed ＋stalk.It reflected that awn ＋glume＋stalk in conjunction with inhibition for pre-harvest sprouting,the individual effect of awn or glume or stalk on seed germination is vary with different varieties.
出处
《黑龙江农业科学》
2017年第7期12-14,共3页
Heilongjiang Agricultural Sciences
基金
现代农业产业技术体系小麦东北综合试验站资助项目(CARS-3)
关键词
春小麦
穗部位
穗发芽
抗性机制
spring wheat
spike part
pre-harvest sprouting
mechanism of resistance
