柑桔、龙眼模拟冻害枝梢水分运输能力及木质部结构观察

发布时间：2018-02-10 15:36

  本文关键词： 冻害 木薄壁细胞 木质部 水分运输　出处：《中国南方果树》2017年05期 　论文类型：期刊论文

【摘要】：为探明冻害损伤对柑桔、龙眼枝梢内部水分运输功能的影响,5月初取福眼龙眼Dimocarpus longan‘Fuyan’老熟春梢和玫瑰橙Citrus sinensis‘Meiguicheng’完成自剪的春梢为试材,经模拟冻害(温度≥-5℃)处理,以不冻害处理为对照,采用苯胺蓝标记法观察枝梢水分输导功能受到的影响,采用常规石蜡切片法观察木质部组织结构的变化。结果表明,冻害处理导致枝梢木薄壁细胞异常,木质部组织结构完整性丧失,阻断了茎内木质部水分的运输。
[Abstract]:In order to find out the effect of freezing injury on the water transport function of citrus and longan branches, the self-cut spring shoots of Dimocarpus longanum Fuyan' and Citrus sinensis Meiguicheng' were collected in early May, and were treated with simulated freezing injury (temperature 鈮，

本文编号：1500852