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保存条件对西瓜花粉生活力的影响
引用本文:陈宗光,马德伟,王宝山,田中.保存条件对西瓜花粉生活力的影响[J].中国瓜菜,2008,21(4).
作者姓名:陈宗光  马德伟  王宝山  田中
作者单位:1. 北京市大兴区农业科学研究所,北京,102600
2. 河北农业大学,河北保定,071001
3. 河北省保定职业技术学院,河北保定,071000
摘    要:西瓜花为半日花,西瓜花粉的生活力在田间条件下开花几小时后即完全丧失。为了延长花粉的生活力,以二倍体西瓜B99品种为试材,研究了不同保存条件对西瓜花粉生活力的影响,结果表明:常温干燥条件下可延长花粉保存时间;低温(4℃)干燥(RH25%)条件下保存花粉,花粉生活力4d内降低较慢,4d后降低稍快,但到第9天仍有1/3以上的花粉具有生活力;前8d的坐果率可达到自然状态(用新鲜花粉授粉)的73%,这在实践中完全可以利用,尤其是对4、5d之内的短期保存更有利用价值。

关 键 词:西瓜  花粉  生活力  保存条件

Effect of storage condition on watermelon pollen viability
CHEN Zong-guang,MA De-wei,WANG Bao-shan,TIAN Zhong.Effect of storage condition on watermelon pollen viability[J].China Cucurbits And Vegetables,2008,21(4).
Authors:CHEN Zong-guang  MA De-wei  WANG Bao-shan  TIAN Zhong
Abstract:The watermelon flowers open shortly after sunrise and pollen of male flowers remain viable for only a few hours under field condition. In order to preserve the pollen viability,the effect of different storage conditions on watermelon pollen viability was researched in diploid watermelon variety B99. The results indicated that the pollen viability was prolonged in the dry condition with room temperature. The pollen viability decreased slowly in the first 4 days with storage condition of temperature at 4 ℃ and RH at 25%. However, the pollen viability decreased quickly after 4 days,only one third of pollen was viable at day 9. The simple method for preserving watermelon pollen viability is to store pollen under relatively low tempera-ture and dry condition.
Keywords:Watermelon  Pollen  Viability  Storage condition
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