Effects of Saline-alkali Stress on Wheat Grain Quality in Jiangsu Wheat-producing Region
WANG Qiang
JIANG Hua
YANG Hongyan
SHEN Huiquan
XU Xiao
ZHANG Yinghu
CHENG Yifan
LIANG Zhihao
XUE Song
GUO Aikui
YU Wenqing
LI Yuxing
Abstract：To investigate the impact of saline-alkali stress on wheat grain quality,this study employed 104 genetically diverse wheat germplasm accessions as experimental materials.Comparative experiments were conducted at Nanyang Experimental Field(control)and Shuntai Farm(saline-alkali stress)in Yancheng City,Jiangsu Province.The core quality traits variations of wheat grains including crude protein content were measured.The results showed that saline-alkali stress significantly reduced crude protein content,wet gluten content,and sedimentation value,whereas starch content was less affected.The sedimentation value exhibited the highest genetic variability(control:18.11％,treatment:15.77％),while starch content showed the lowest coefficient of variation(control:1.32％,treatment:1.08％),indicating strong stability.Correlation analysis revealed that crude protein and wet gluten content maintained a highly significant positive correlation(r≥0.80)both under control and stress conditions,whereas the negative correlation between starch and protein-related traits weakened under stress.Significant varietal differences in stress responses were observed.Zhongguochun displayed high sensitivity across multiple quality traits,while Yang 14-88 exhibited specific responses in crude protein,wet gluten and starch.Sensitive varieties such as Ningmaizi 15318 and Huaimai 28 were identified,providing a theoretical basis for breeding saline-alkali-tolerant and high-quality wheat.
Keywords：WheatSaline-alkali stressQuality traitsGenetic variationCorrelation analysis
Publication Date：2025-10-28
Online Publishing Date：2025-11-24(First online date of this platform, not the publication date of the document)
Pages：6( 36-41 )