Waterlogging Tolerance Evaluation of Different Wheat Varieties at
Filling Stage in the Area Along the Huaihe River
WANG Rongyuan1
,CHEN Juan1
,YAN Suhui1
,ZHOU Yongjin2
,WU Wenge2
,LI Wenyang*1
Journal of Jianghan University (Natural Science Edition)
2023, 51 (5):
32-40.
DOI: 10.16389/j.cnki.cn42-1737/n.2023.05.004
The grain yield and quality traits of different wheat varieties were analyzed to
provide a theoretical reference for screening waterlogging tolerance varieties suitable for
planting in the area along the Huaihe River. In the field experiment,34 wheat varieties were
selected as materials,which were treated with normal precipitation during the whole growth period and waterlogging stress during the filling period. Seven main yield and quality indexes
including spike number,grain number per spike,grain weight,grain yield,wet gluten,
protein content,and starch content were determined. The subordinative function method was
used to calculate the waterlogging tolerance coefficient of each index,and the comprehensive
waterlogging tolerance ability of each wheat variety was evaluated by cluster analysis. Under
waterlogging stress,the grain weight and grain yield of wheat decreased greatly,and the
trait indexes decreased significantly. Based on the variation coefficient of the waterlogging
tolerance coefficient,the inhibitory effect of waterlogging stress on wheat yield and quality
traits at the filling stage was grain weight > wet gluten > protein content > grain yield >
grain number per spike > starch content > spike number. The average membership value of
waterlogging tolerance was extremely significantly positively correlated with grain weight
and starch content,extremely significantly positively correlated with waterlogging tolerance
coefficient of grain weight, wet gluten, protein content, and starch content, and
significantly positively correlated with waterlogging tolerance coefficient of yield. Through
cluster analysis,34 wheat varieties were divided into three types:waterlogging tolerance,
intermediate, and sensitive. The number of materials was 22,10,and 2,respectively,
accounting for the tested materials,64. 71%,29. 41%,and 5. 88%,respectively. Grain
weight and grain yield can be used as the preferred indexes for evaluating the waterlogging
tolerance of wheat. Yangmai 13,Yangmai 22,and Ningmai 13 can be used as reference
resources for wheat waterlogging tolerance cultivation and breeding.
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