江西农业大学学报2017，Vol.39Issue(6)：1154-1162,9.DOI:10.13836/j.jjau.2017150
干旱胁迫下银杏雌雄植株的生长及内源激素含量的差异
Gender Differences in the Growth and Endogenous Hormone Contents of Male and Female Ginkgo biloba under Drought Stress
摘要
Abstract
Using 2-year-old cutting seedlings Ginkgo biloba L.cv.'DaFozhi'(male and female),simula-ting the natural drought by means of greenhouse pot culture the growth and endogenous hormone contents of male and female Ginkgo biloba under drought stress were studied.The results showed that:(1) At the same stage of drought treatment,the wilting phenomenon of male ginkgo leave was more serious,and the growth rate of plant height and ground diameter decreased faster.The female plants showed better growth than the male. ( 2) At the same stage of drought treatment,the contents of promoting hormone IAA,GA3 and ZR in the female plants were higher than those in the male plants and the content of inhibitory hormone ABA was lower than that of the male plants.(3)Compared with the male,the female ginkgo had higher IAA/ABA,GA3/ABA,ZR/ABA ratio and lower GA3/IAA ratios in the same drought stage.The gender differences showed that the female gink-go had better drought adaptability than the male.In addition,the plant height and ground diameter growth of the female ginkgo under drought stress were higher than those of the male ginkgo,which might be the effect of the contents of IAA and the ratios of GA3/IAA,and IAA/ABA.关键词
银杏/干旱胁迫/生长/内源激素/性别差异Key words
Ginkgo biloba/drought stress/growth/endogenous hormone/gender difference分类
农业科技引用本文复制引用
何梅,施大伟,胡玉安,谢寅峰..干旱胁迫下银杏雌雄植株的生长及内源激素含量的差异[J].江西农业大学学报,2017,39(6):1154-1162,9.基金项目
国家自然科学基金项目(31300572)、江西省科技厅重点研发项目(20161BBF60116)、国家级大学生创新创业训练计划项目(201310298005)和江苏高校优势学科建设工程资助项目(PAPD) Project supported by the National Natural Science Foundation of China(31300572),Key Research and Develop-ment Project of Jiangxi Provincial Department of Science and Technology(20161BBF60116),Innovation Project of Jiangsu Postgraduate Education (KYZZ-0248) and the Priority Academic Program Development of Jiangsu High Education Institutions(PAPD) （31300572）
