高温对棉花花粉生活力的影响  

Effect of High Temperature on Cotton Pollen Viabiliy

作　　者：郑冬官[1] 方其英[1] 蔡永立[1] 黄德祥[1] 

机构地区：[1]安徽农业大学

出　　处：《棉花学报》1995年第1期31-32,共2页Cotton Science

摘　　要：用三种方法测定高温处理后棉花花粉的生活力，评述了各种测定方法的相对价值。开花前的花粉恒温处理１０小时以后，用ＰＭＤＡ法测定，从３３℃至４２℃，花粉都能萌发。用花柱基部花粉管穿孔计数法测定，３５℃育性消失。用培养基发芽法测定，３９℃经３小时和５小时，花粉的萌发率均很低。Three methods for examing the viability of high temperature on cotton pollen wereevaluated.PMDA method manifests that all pre-flowering pollens,when treated with con-stant high temperature for 10 hours, pollen could germinate at 33～42℃;pollen tube perfora-tion counting method on style-base reveals that the reproductive ability disappeared at 35℃;while the substratum method indicates a very low germination rate for pollens under 39℃ foreither 3 or 5 hours.

关 键 词：棉花 花粉 温度 活力 测定 

分 类 号：S562.01[农业科学—作物学] S562.032