我国南北棉区,近几年来常因秋季低温阴雨,致使棉花铃轻、籽瘪、衣分低、烂铃多、纤维品质差,最后遭致减产。过去国内对有关棉花生育和外界环境关系研究甚少,多停留在定性的描述而缺乏具体的定量指标,因此,开展棉花花铃期气象条件与棉铃生育关系的研究,特别是温度与棉铃生育关系的研究,可为我们研究棉花育种和栽培技术,正确认识和掌握棉花生育的客观规律提供理论 In northern and southern cotton areas of our country, in recent years, low and rainy autumn often leads to cotton boll light, seed deflated, low apparel, bad bell, poor fiber quality and finally cut production. In the past, little research has been done on the relationship between cotton production and the external environment in China. Most of the studies on cotton have no qualitative and quantitative indicators. Therefore, the study on the relationship between the weather conditions and cotton boll growth, especially the relationship between cotton boll temperature and temperature Research, we can study cotton breeding and cultivation techniques, to correctly understand and master the objective law of cotton to provide theory