现代畜牧科技Issue(9)：58-62,5.DOI:10.19369/j.cnki.2095-9737.2024.09.015
黄花苜蓿叶片解剖结构对盐碱胁迫的响应
The Anatomical Stucture Responses in Medicago falcata L.Leaves to Saline-alkali Stress
摘要
Abstract
In order to investigate the characteristic changes of leaf structure of Medicago falcata L.under saline-alkali stress and reveal the correlation between anatomical structure and saline-alkali resistance,the leaf anatomical structure of M.falcata L.cv.Longmu No.18 was observed by paraffin wax method after 0,1,6 h and 12 h of 150 mmol/L NaHCO3 and Na2CO3 mixed saline-alkali stress.The paraffin wax method was used to measure the leaf thickness,palisade tissue thickness,spongy tissue thickness,epicuticle thickness and hypodermis thickness.The ratio of palisade tissue to spongy tissue,tightness of leaves palisade tissue structure and looseness of leaves sponge tissue structure were calculated to study the influence of different saline-alkali stress time on leaf structure of M.falcata L..The results showed that the saline-alkali stress significantly influenced the skin and mesophyll structure of the leaves.The thickness of M.falcata L.cv.Longmu No.18 leaves depend on palisade tissue thickness and spongy tissue thickness.The above indexes were standardized and principal component analysis was conducted to extract three principal components with the characteristic value greater than 1 of M.falcata L.cv.Longmu No.18 under saline-alkali stress,whose cumulative variance contribution rate was 83.523%.关键词
黄花苜蓿/叶片/解剖结构/盐碱胁迫Key words
Medicago falcata L./blade/anatomical structure/saline-alkali stress分类
农业科技引用本文复制引用
柴华,申忠宝,杨曌,李莎莎,王晓龙,徐艳霞,吴玥..黄花苜蓿叶片解剖结构对盐碱胁迫的响应[J].现代畜牧科技,2024,(9):58-62,5.基金项目
黑龙江省博士后面上项目(LBH-Z22259) （LBH-Z22259）
黑龙江省农业科学院农业科技基础创新项目(CX23YQ10) （CX23YQ10）
