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Journal of Agriculture ›› 2020, Vol. 10 ›› Issue (8): 6-12.doi: 10.11923/j.issn.2095-4050.cjas20191200309

Special Issue: 小麦

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Drought Resistance Identification of Wheat Varieties in Huanghuai Dryland Group: Comparative Analysis

Meng Limei(), Yang Ziguang, Sun Junwei, Zhang Ke, Guo Junwei   

  1. Luoyang Agricultural and Forestry Sciences in Henan Province, Luoyang 471023, Henan, China
  • Received:2019-12-18 Revised:2020-06-03 Online:2020-08-20 Published:2020-08-19

Abstract:

To understand the overall situation of drought resistance of wheat varieties in dryland groups in Huanghuai winter wheat area, the yield and drought resistance index of 132 regional trial varieties (lines) from 2017 to 2019 under drought stress, as well as the spike number, kernels per spike, thousand-grain weight, plant height and other traits and drought resistance coefficient were analyzed. The results showed that varieties (lines) in the Huanghuai dry-fertilizer group, dry-thin group and northern group had the similar trend of drought resistance, the total yield under stress was dry-fertilizer group> dry-thin group> northern group, and showed a steady upward trend year by year. From the perspective of the drought resistance index, drought resistance of wheat varieties in the Huanghuai dryland was still at a weak level, drought resistance traits were damaged differently under drought stress, among the traits, the thousand kernel weight suffered the lightest damage, the effective panicle, panicle number and plant height were the most serious damaged.

Key words: Wheat, Dryland Group, Character, Drought Resistance Identification, Drought Resistance Index, Drought Resistance Coefficient

CLC Number: