温湿度对棉花种子萌发的影响研究  

Effects of Temperature and Humidity on Cotton Seed Germination

作　　者：徐敏[1] 李憬霖 叶福民[1] 朱鹤 王子胜[1] XU Min;LI Jinglin;YE Fumin;ZHU He;WANG Zisheng(Cash Crop Institute of Liaoning Academy of Agricultural Sciences,Liaoyang 111000,Liaoning,China;Cotton Research Institute of the Chinese Academy of Agricultural Sciences,Anyang 455000,Henan,China)

机构地区：[1]辽宁省农科院经济作物研究所,辽宁辽阳111000 [2]中国农业科学院棉花研究所,河南安阳455000

出　　处：《农学学报》2022年第10期10-14,20,共6页Journal of Agriculture

基　　金：国家棉花产业技术体系项目“辽河综合试验站建设”(CARS-15-34);国家重点研发计划项目“棉花强优势杂交种的选育及示范推广”(2016YFD0101412);国家重点研发计划子课题项目“西北内陆优质机采棉花新品种培育”(2017YFD0101601-05);国家重点研发计划子课题项目“黄河流域高效轻简化棉花新品种培育”(SQ2018YFD010081)。

摘　　要：为了探明温度、湿度对棉花种子萌发的影响规律,为棉花适宜播期的确定提供理论指导。以棉花种子为试材,进行温度、湿度双因素室内发芽试验,逐日计数并计算发芽率。棉花种子发芽较为活跃的时间段为第1~4天,累计发芽率较高的温度是25℃和30℃,湿度是20%和40%。利用数学方法对适宜棉花种子发芽的温度和湿度范围进行预测,得到相似的结论。棉花种子发芽期间,湿度以15%~40%为宜,温度以26℃左右为宜,可根据实际情况安排播种时间和方式。In order to explore the effects of temperature and humidity on cotton seed germination,and provide theoretic guidance for suitable sowing date of cotton,the authors took cotton seed as material,conducted an indoor temperature and humidity 2-factor germination experiment,and recorded and calculated germination rate every day.The active period of cotton seed germination was from day 1 to day 4,and the cumulative germination rate was relatively high at 25℃and 30℃,and humidity of 20%and 40%.Mathematical method was used to predict the suitable temperature and humidity range for cotton seed germination,and the similar conclusion was obtained.During cotton seed germination,the suitable humidity is 15%-40%,the suitable temperature is around 26℃,so the sowing time and method should be arranged according to actual situation.

关 键 词：棉花 种子 温度 湿度 发芽率 

分 类 号：S562[农业科学—作物学]