| 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.甘蔗花粉活力和柱头可授性日变化研究[J].广东农业科学,2017,44(4):14-18 |
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甘蔗花粉活力和柱头可授性日变化研究 |
| Study on diumal variation of sugarcane’s pollenvitality and stigma energy |
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| DOI：10.16768/j.issn.1004-874X.2017.04.003 |
| 中文关键词: 甘蔗 散粉量 花粉活力 柱头可授性 |
| 英文关键词: sugarcane pollen grains pollen vitality stigma energy |
| 基金项目:现代农业产业技术体系建设专项（CARS-20-1-6）；广东省科技计划项目（2013B020311002，
2014A030305002，2014A030304027，2015A030303005，2015A030302033）；广东省科学院科研平台环境能力建设专项
（2016GDASPT-0306） |
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| 摘要点击次数: 2075 |
| 全文下载次数: 948 |
| 中文摘要: |
| 为探明造成甘蔗花穗杂交结实率低的原因，以多花粉ROC22、科五和自交不育系粤糖
92-1287、桂糖96-211 为试材，对其散粉量、花粉活力及柱头可授性日变化进行研究。结果表明，甘蔗开花
散粉集中在7：30～8：30，随时间推移花粉活力逐渐降低，13：00 后完全丧失活性；在0℃干燥条件下，适
于花粉短期贮存；柱头全天都具有可授性，高温会影响柱头可授性。甘蔗最佳授粉时间为8：00～8：30，此
时花粉活性较好，柱头可授性最强，花粉量充足。 |
| 英文摘要: |
| 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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