草业科学2017，Vol.34Issue(4)：724-734,11.DOI:10.11829/j.issn.1001-0629.2016-0228
多年生黑麦草种子萌发及苗期耐盐性的比较
Comparison of the salt tolerance of perennial ryegrass during seed germination and seedling growth
摘要
Abstract
The salt tolerance of six Lolium perenne varieties during seed germination,seedling growth,and the establishment stage under different temperatures was investigated.The results showed that temperature,variety,salt concentration,and their interaction affected plant response to salt stress.Moreover,plant salt tolerance varied with seedling growth stage,regardeless of variety and incubation conditions.The relative germination rate,germination index,root length,seedling length,biomass,and density decreased with increasing salt concentrations.Salt tolerance was highest at 15/25 ℃ (12 h light/12 h dark),whereas 5/15 ℃ and 25/35 ℃ aggravated salt stress.Use of the subordinate function method for comprehensive evaluation and comparison indicated that the best variety is Gray star,and the worst is Neruda.关键词
多年生黑麦草/盐胁迫/萌发/幼苗生长/建植/耐盐性综合评价Key words
Lolium perenne/salt stress/germination/seedling growth/comprehensive evaluation of salt分类
农业科技引用本文复制引用
范燕,闵丹丹,郭正刚,冯葆昌,胡小文..多年生黑麦草种子萌发及苗期耐盐性的比较[J].草业科学,2017,34(4):724-734,11.基金项目
公益性行业(农业)科研专项(201403048-3) （农业）
甘肃省重大科技攻关项目(2013GS05907) （2013GS05907）
