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在1979～1982年间,以37个不同类型的冬小麦品种(系)为材料,研究了4个生育阶段与主茎粒重及其构成因素的关系。结果表明,主茎粒重和千粒重与开花到成熟的天数显著正相关,主茎小穗数、粒数分别与生长锥伸长到顶端小穗出现、顶端小穗出现到抽穗的天数显著正相关,主茎小穗数和粒数又与全生育期显著正相关。最后根据北部冬麦区的气候和栽培的特点并联系回归和相关分析的结果,对通过改变有关生育阶段的相对长度以改善早熟品种的粒数少和晚熟品种的粒重低的可能途径进行了讨论。
In 1979-1982, 37 different types of winter wheat cultivars (lines) were used to study the relationship between grain weight and grain weight at four stages of growth and its components. The results showed that there was a significant positive correlation between the kernel weight and 1000-grain weight and the number of days from flowering to maturity. The number of spikelets and number of main stems were significantly and positively correlated with the elongation of the growth cone to the emergence of the top spikelet and the number of top spikelet to heading day , The main stem spikelet number and grain number again with the whole growth period was significantly and positively correlated. Finally, based on the characteristics of climate and cultivation in the north winter wheat area, the results of regression and correlation analysis are linked to the possible ways to reduce the number of early maturing varieties and low kernel weight of late maturing varieties by changing the relative length of the relevant growth stages discuss.