不同品种和优系开始休眠和结束休眠的日期不同。
The date of beginning and ending dormancy of various varieties and good strains was different.
四个优系处理与对照相比，均降低了两种病害的发病率、发病指数和发病程度；
The incidence, index and epidemic degree of the two disease decreased comparing with CK after choice ;
以豫麦49、豫麦18为对照，对豫麦66及其优系和矮早系的花器构造、散粉特性和穗部特征进行了研究。
The inflorescence organization, the blooming habits and the spike characteristics of Yumai No. 66 were studied in this paper.
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