贮藏条件对麻疯树花粉生活力的影响

摘要

以四年生麻疯树(Jatropha curcas L.)花粉为试验材料,研究不同发育阶段和不同保存条件对花粉生活力的影响,以期为麻疯树的远距离杂交提供一定的理论依据.研究结果表明,麻疯树新鲜花粉的生活力均为100％,随贮藏时间的延长,花粉生活力呈下降趋势；相同保存条件下,发育阶段不同的花粉生活力差异不显著;相同发育阶段的花粉,贮藏方法不同,花粉生活力存在极显著的差异；麻疯树花粉生活力以冷冻(-20℃)贮藏方法处理的最高,冷藏(2℃)处理次之,高温贮藏花粉生活力下降最快.%The experiment was conducted with the pollens of 4-year-old Jatropha curcas L. to study the effects of different developmental stage and storage condition on pollen viability. The results showed that viability of fresh pollen was 100%, and pollen viability declined with the time prolonging. The difference of pollen viability was not significant in different developmental stages, however, it was significant under different storage conditions. Storaging pollen under -20 ℃ was the best tem-preture conditions followed by under 2 ℃ of cold storage. Pollen viability declined quickly under high temperature.