花叶夹竹桃叶片冻害调查分析
A preliminary study on freeze injury of Nerium indicum ‘ Variegatum' leaves
徐绍清 1王立如 1徐连根 2徐伟韦 3沈生初 1胡志刚1
作者信息
- 1. 浙江省慈溪市林特技术推广中心,浙江慈溪315300
- 2. 慈溪市蒂凡内斯农林科技有限公司
- 3. 慈溪市农业技术推广中心
- 折叠
摘要
对花叶夹竹桃枝梢顶部叶片进行冻害分级调查,并与夹竹桃比较.结果表明,在-5.5℃的低温条件下,花叶夹竹桃枝梢顶端附近叶片可出现冻害现象.但未见植株冻死,且受冻部位附近能萌发新芽,枝叶生长正常.花叶夹竹桃冻害程度极显著重于夹竹桃,迎风口的冻害显著重于避风口,且越接近枝梢顶端冻害越严重.
Abstract
The freeze injury of Nerium indicum ' Variegatum' leaves at the low temperature was studied in Cixi areas. The results showed that the freeze injury occurred in the leaves near the top of branch of Nerium indicum ' Variegatum' at -5.5℃ in Cixi, but no plants were frozen to death. New buds could sprout near the parts of freeze injury (including 4 joints of branches or 12 leaves) and grow normally. In comparison with Nerium indicum, the freeze injury degrees of leaves of Nerium indicum ' Variegatum' was more serious. The freeze injury degrees of leaves in the windward were more serious than that in the leeward and the leaves near top branch were easier to be damaged.
关键词
花叶夹竹桃/叶片冻害/冻害分级/防冻措施Key words
Nerium indicum ' Variegatum'/freeze injury of leaves/grading freeze injury/preventing measures of freeze injury引用本文复制引用
基金项目
浙江省慈溪市科技局项目(CN2008003)
出版年
2011
国家科技期刊平台
NSTL
维普
万方数据