渭北几种柿树的叶片结构与抗旱性关系研究  

Study on Relations between Leaf Structure and Drought Resistance of Persimmon in the Area North of Weihe River

作　　者：贺军虎[1] 王永熙[1] 王小红[1] 陈业渊[2] 魏守兴[2] 

机构地区：[1]西北农林科技大学园艺学院,陕西杨凌712100 [2]中国热带农业科学院品种资源所,海南儋洲571737

出　　处：《北方果树》2005年第2期7-9,共3页Northern Fruits

摘　　要：对渭北旱区多年生柿树火柿、水柿、木洼柿和柿属君迁子气孔形态和叶片解剖结构的研究结果表明,柿树对干旱有一定的适应性,其气孔的大小与气孔指数成正相关,气孔在中午表现有“午休现象”;干旱影响柿树叶片的形态建成,表现为春季叶片栅栏组织与海绵组织的厚度比值、细胞密集度大于其秋叶的比值。从柿树叶的结构和生理特性上看,柿树具有偏旱生植物的倾向。Stoma morphology and leaf structure of'Huoshi','Huoshi','Shuishi'and 'Junqianzi' persimmon were studied.The results showed that:Persimmon trees and had adapted to drought areas;The size of stoma had positive relation with stoma index;The development of leaf was affected by drought;The ratio between palisade and spongy tissue, and the cell density of palsied tissue of persimmons leafs in spring were larger than in autumn.Persimmon trees had a drought resistance tendency morphologically physiologically.

关 键 词：柿树叶 渭北 抗旱性 君迁子 干旱 多年生 叶片 正相关 表现 指数 

分 类 号：S665.2[农业科学—果树学] S664.1[农业科学—园艺学]