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Journal of Agriculture ›› 2022, Vol. 12 ›› Issue (8): 6-9.doi: 10.11923/j.issn.2095-4050.cjas2020-0265

Special Issue: 生物技术 小麦

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Correlation Degree Between Water Stress and Wheat Yield Traits and Grain Bulk Density

NIU Liya(), YU Liang, ZHANG Yujie, ZOU Jingwei, LU Li, WANG Fengzhi, WANG Weiwei()   

  1. Cangzhou Academy of Agricultural and Forestry Sciences, Cangzhou 061001, Hebei, China
  • Received:2020-12-03 Revised:2021-03-04 Online:2022-08-20 Published:2022-09-22
  • Contact: WANG Weiwei E-mail:niuliya1978@163.com;897069172@qq.com

Abstract:

This study used correlation analysis and grey correlation analysis to analyze 7 main characters of 10 new wheat varieties, including yield and bulk density. The research showed that the yield traits and bulk density of wheat were affected by water content, and different traits had different degrees of reduction. The results of grey correlation analysis showed that under dry and water land condition, the correlations between the yield traits and the yield per plant and bulk density were not consistent and varied in degrees. According to the analysis, when selecting wheat varieties in Cangzhou, the tillering ability and the rate of spike formation should be the most important factors, and the number of grains per spike should also be taken into consideration. Wheat grain yield and grain bulk density are complex comprehensive characters, which are combined and interacted with many factors. Therefore, it is objective and feasible to evaluate the influence degree among the characters by grey correlation analysis method, which could be used in breeding practice in the future.

Key words: wheat in dry and water land, yield, bulk density, correlation, correlation degree

CLC Number: