河南农业科学2018，Vol.47Issue(1)：84-89,6.DOI:10.15933/j.cnki.1004-3268.2018.01.015
甜瓜种质资源芽苗期和幼苗期耐NO3-性评价及鉴定指标筛选
Evaluation and Selection of Identification Indices for NO3-Tolerance at Sprout and Seedling Stages of Melon Germplasms
摘要
Abstract
In order to screen salt-tolerant materials and provide early identification indices of melon,150 mmol/L NO3-solution was used to treat 23 melon germplasms at sprout and seedling stages,and based on subordinate function values and total subordinate function value of salt damage coefficient,the salt tolerance was compared and the salt tolerance identification indexes were screened.The result showed that the responses of different melon germplasms to NO3-stress treatment were obviously different and salt tolerance at sprout and seedling stages was varied.Four salt tolerant materials were the same,which occupied 57.14％ and 25.00％ of salt tolerant materials at sprout stages and seedling stages respectively,and the same rate of salt tolerant and medium salt tolerant materials was 90.00％.Radicle dry weight and main radicle length were screened as salt resistance identification indexes for melon at sprout stages,and stem diameter,root dry weight,strong seedling index,chlorophyll a + b/carotenoids and above ground dry weight could be used as salt resistance appraisal indicators for melon at seedling stage.关键词
甜瓜种质/芽苗期/幼苗期/耐NO3-性/鉴定指标Key words
Melon germplasm/Sprout stage/Seedling stage/NO3-tolerance/Identification indices分类
农业科技引用本文复制引用
赵卫星,常高正,高宁宁,李海伦,梁慎,康利允,徐小利,李晓慧..甜瓜种质资源芽苗期和幼苗期耐NO3-性评价及鉴定指标筛选[J].河南农业科学,2018,47(1):84-89,6.基金项目
国家西甜瓜产业技术体系建设项目(CARS-26) （CARS-26）
河南省科技攻关项目(162102110099) （162102110099）
河南省农业科学院自主创新项目 （）
