南京农业大学学报2012，Vol.35Issue(1)：108-112,5.
春季紫花苜蓿根系性状与地上部生长性状的相关性分析
Analysis of the relationship between root traits and plant growth traits of alfalfa in spring
摘要
Abstract
In order to explore root traits of alfalfa(Medwago saliva L. )for seasonal growing in winter-followed farmland in south China, a study with 9 alfalfa cultivars including ' Sitel' , ' Sadie 5 ' , ' Victoria' , ' WL-414 ' , ' Sadie 7 ' , ' Eureka' , ' WL-525HQ ' , ' Supersonic' and ' Sadie 10' , was conducted in field and pot experiments to testify the relationship between root traits and plant growth. The result indicated that tap-root diameter had a significant positive correlation with the lateral root density at 0-5 cm closed collar,and was significantly positively correlated with collar diameter(P<0. 01). The tap-root and collar diameter were significantly positively correlated with the plant height and primary shoot number( P<0.01). The lateral root density at 0-5 cm closed collar had a positive correlation with the plant height and primary shoot number (P<0. 05). The results suggested that strong tap-root and more lateral root numbers,which made more primary shoot numbers,were important root characters of alfalfa cultivars for seasonal growing in winter-followed farmland in south China.关键词
紫花苜蓿/根颈/根系/相关性/生长Key words
alfalfa/ collar/ root/relationship/ growth分类
农业科技引用本文复制引用
陈艳,乔璟,沈益新..春季紫花苜蓿根系性状与地上部生长性状的相关性分析[J].南京农业大学学报,2012,35(1):108-112,5.基金项目
国家自然科学基金项目(31072079) （31072079）
江苏省科技支撑计划项目(BE2009306) （BE2009306）
江苏省农业三项工程项目(SX(2010)135) （SX(2010）
