摘要
本文研究了1986～1988年不同开花期棉铃异质性与气候的关系。结果表明,3年平均落铃率为43.27％;就落铃率而言,晚秋桃>伏前桃>早秋桃>伏桃,伏前桃、伏桃和早秋挑3年平均铃重分别为49、55、75天;>10℃的有效积温是影响铃重的主导因素;干旱的天气和高温能使纤维缩短。
The heterogeneity of cotton boll formed in different flowering periods was studied in this paper, and the relationship between heterogeneity and climatic conditions was stu died also, in 1986～1988. The result indicated that the boll-abscission percentage averge over these three years was 43.27%. In respect of the boll-abscission percentage, the late autumn bolls>early summer bolls>eary autumn bolls>sweltering summer bolls. The average boll period of early summer, sweltering summer and early autumn bolls average over three yers was 49, 55, and 75 days, respectively. The effective accumulaion temperature(>10℃)was the main factor which influences the boll weight. The fibre length was shortened under the dry weather and high temperature.
出处
《湖北农学院学报》
1992年第1期16-23,共8页
Journal of Hubei Agricultural College
关键词
花期
棉铃
异质性
气候
落铃率
flowering period
cotton boll
heterogeneity
clmate
boll-abscission percent
boll weight
fibre length
