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.
出处
《棉花学报》
CSCD
北大核心
1995年第1期31-32,共2页
Cotton Science
关键词
棉花
花粉
温度
活力
测定
cotton,pollen,temperature,
vigour,’test
