【摘要】 对冀南地区162个小麦品种(系)的抽穗期与千粒重试验分析表明:小麦抽穗主要在4月21日前,4月19日、20日抽穗数量占50.1％;千粒重主要在35.0～44.9g范围内,占品种总数的67.3％;随着抽穗时间的推迟,千粒重呈下降趋势,r=-0.9321~**。更多还原

【Abstract】 The heading stage and 1000 kernels weight of 162 wheat culnvars (varieties)were studied. The results indicated that the majority of wheat cultivars(varieties) had headed before April 21th, and 50. 1 percent of all had headed from April 19th to 20th; 1000 kernels weight of 63.7 percent of wheat cultivars(varieties)was 35.0~44.9 g.Along with the delay of heading stage,1000 kernels weight decrease,r=-0.9321.更多还原