福建农业学报2017，Vol.32Issue(3)：248-252,5.DOI:10.19303/j.issn.1008-0384.2017.03.004
水稻种质资源光合与水分利用特性比较及聚类分析
Comparison and Cluster Analysis on Photosynthetic Characteristics and Water Usage Efficiency of Rice Germplasms
摘要
Abstract
Photosynthetic characteristics (PC) of various rice germplasms were determined to identify high-efficient genetic resources for improvements on rice cultivars.In addition,the water usage efficiency (WUE) and chlorophyll content (SPAD) of 58 rice germplasms from various nations and regions were obtained for comparison and classification in a cluster analysis.The results showed that there were significant differences (P<0.01) in photosynthesis rate (Pn),stomatal conductance (C),and transpiration rate (E),as well as highly significant differences (P<0.05) in WUE,among the tested varieties.The 3 principal components cumulatively contributed to the variances among the cultivars at 85.31%on C,Pn and E being the 1stprincipal component;on WUE and Pn,the 2nd;and,on SPAD,the 3rd.Based on Pn,WUE,and SPAD,the 58 germplasms were clustered into 7 groups.As a result,Group 1 and Group 6 consisting of 9 germplasms that showed high PC,WUE and SPAD were recommended for crossbreeding purposes.关键词
水稻/光合特性/水分利用效率/聚类分析/种质资源Key words
rice/photosynthetic characteristics/water usage efficiency/cluster analysis/germplasm resources分类
农业科技引用本文复制引用
杨旺兴,卓伟,马彬林,邹文广,韦新宇,杨滕帮,张受刚,许旭明..水稻种质资源光合与水分利用特性比较及聚类分析[J].福建农业学报,2017,32(3):248-252,5.基金项目
国家水稻产业技术体系专项(CARS-01) （CARS-01）
福建省科技重大专项(2012NZ0003) （2012NZ0003）
福建省科技计划项目--省属公益类科研院所基本科研专项(2015S0065) （2015S0065）
三明市科技计划项目(2014-N-2) （2014-N-2）
