排序方式: 共有11条查询结果,搜索用时 15 毫秒
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小麦品种抗寒性与生理性状的关系 总被引:1,自引:0,他引:1
[目的]分析小麦品种抗寒性与低温处理下生理性状表现的关系.[方法]利用6个来自不同温度区域的小麦品种,在安徽亳州、河北吴桥、北京海淀和北京延庆4个不同的生态区进行田间试验,鉴定它们的抗寒性和产量表现,同时进行苗期低温处理下的生理性状测定.[结果]6个品种在不同地点的产量和越冬死苗率存在较大差异,它们的光合特性、SPAD值和相对电导率等生理性状对苗期低温处理的反应也各不相同,但田间表现与苗期低温下生理性状的表现并不一致.[结论]该研究对小麦抗寒品种的选择和鉴定具有重要的参考价值. 相似文献
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玉米育种组合产量试验的问题探讨 总被引:3,自引:1,他引:2
The research on consistent of identical trail,variety comparative trial and regional trial was conducted in the study.The difference between results of identical trial and variety comparative trial were large.It was maybe related to the differences of design between the two trials.In the identical trial,the plot only had a single row of plants,and in the variety trail,the plot had multiple rows of plants.The aim of this article was to discover the problems existing in the yield trials for maize breeding. 相似文献
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