喷施“九二○”对光温敏核
不育系柱头外露的影响

邱振国1; 2; 张平湖1; 刘家矩2; 刘良成2; 梁铁军2; 钟月生2

文章摘要

Study on response of stigma exsertion rate of photo-thermosensitive genic male sterile lines to“ 920”

DOI：

Author Name	Affiliation
邱振国1，2，张平湖1，刘家矩2，刘良成2，梁铁军2，钟月生2	1. 仲恺农业工程学院健康农业研究所，广东广州 510225； 2. 华茂高科种业有限公司，广东茂名 525011

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Abstract:

To understand stigma exsertion characters of photo-thermo sensitive genic male sterile lines（ PTGMS lines），the effects of“ 920” on stigma exsertion of 4 PTGMS lines were studied by spraying with“ 920”or not in the natural field conditions. The results showed that under natural conditions the stigma exsertion rates of the 4 PTGMS lines were at a high level between 79.8%~87.1% and the line with highest stigma exsertion rate was GD-7S，and most of the stigma exsertion were unilateral. The totalstigma exsertion rates of the PTGMS（except GD-7S） were all increased by spraying with“ 920”， especially for the unilateral stigma exsertion. For the bilateral stigma exsertion rates，the responses of the different PTGMS lines to“ 920” were different. The line with largest increase of stigma exsertion rate and best response to“ 920” was Xing86S. It could be seen that“ 920” could increase the stigma exsetion rates of the PTGMS lines in this study，especially the unilateral stigma exsertion rate.

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