TITLE

Drought-resistance of local wheat varieties in Shanxi Province of China: A comprehensive evaluation by using GGE biplot and subordinate function

AUTHOR(S)
YANG Jin-wen; ZHU Jun-gang; WANG Shu-guang; SUN Dai-zhen; SHI Yu-gang; CHEN Wei-guo
PUB. DATE
April 2013
SOURCE
Yingyong Shengtai Xuebao;Apr2013, Vol. 24 Issue 4, p1031
SOURCE TYPE
Academic Journal
DOC. TYPE
Article
ABSTRACT
Taking 7 local wheat varieties in Shanxi Province of China and two other control varieties as test materials, this paper studied their morphological and physiological traits under normal and water stress field conditions. The drought-resistance coefficient of each index of the traits was calculated. On the basis of principal component analysis, the correlations between the drought-resistance indices and their relationships with the drought-resistance of different varieties were analyzed by GGE biplot, and the drought resistance of the wheat varieties was comprehensively evaluated with the combination of subordinate function and drought resistance index analysis. The main morphological and physiological factors affecting the drought-resistance of the wheat varieties were uppermost internode length, plant height, internode length, leaf area, leaf POD and SOD activities, and leaf relative water content and relative electric conductivity. There existed different degrees of correlation between these indices, and each index had different effects on the drought resistance of the varieties, being the main cause for the different drought resistance of the wheat varieties. Based on the drought-resistance, the test varieties could be classified into three groups, i. e. , drought-resistance group, intermediate group, and sensitive group. Two highly drought-resistance cultivars, Baihe- shangtou and Zhuganqing, whose drought-resistance was similar to that of drought-resistant Jinmai 47, could be used as the parent materials for breeding drought-resistance wheat.
ACCESSION #
91993974

 

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