甘蔗花粉活力和柱头可授性日变化研究

常海龙1; 2; 张垂明1; 2; 张 伟1; 2; 陈俊吕1; 2; 邱永生1; 2; 周 峰1; 2; 吴其卫1; 2; 王勤南1; 2

文章摘要

Study on diumal variation of sugarcane’s pollenvitality and stigma energy

DOI：10.16768/j.issn.1004-874X.2017.04.003

Author Name	Affiliation
常海龙1，2，张垂明1，2，张伟1，2，陈俊吕1，2，邱永生1，2，周峰1，2，吴其卫1，2，王勤南1，2	1. 广州甘蔗糖业研究所广东省甘蔗改良与生物炼制重点实验室，广东广州 510316； 2. 农业部广东甘蔗种质资源与利用科学观测实验站，海南三亚 572025

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Abstract:

In order to investigate the reason of low ripening rate of sugarcane flowers hybrid，Roc22，K5 and self-sterility，such as YT 92-1287，GT 96-211 were used to study the diumal variation of pollen grains，pollen vitality and stigma energy. The results showed that sugarcane flowered powder between 7：30 and 8：30，then the pollen vitality gradually reduced，completely lost activity after 13：00. The pollen was easily inactivated with rapid dehydration and drying under 0℃ was working for pollen viability in short-term. Stigma could be granted within a day and was affected by high temperature. The best time to pollinate depended largely on pollen activity，8：00-8：30 was the point of sugarcane，meanwhile the stigma could give the most and abundant pollen with high vitality.

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