Responses of Grain Yield and Water Saving Traits to Water Regimes of Different Winter Wheat Cultivars

doi:10.3321/j.issn:1000-7091.2006.02.017

Abstract

Abstract: The yields,yield components and drought resistance index of 24 winter wheat cultivars were studied under different water regimes.The results indicated that yield was significantly different among irrigations and varieties.The interaction between irrigation and varieties was also different remarkably.On the average,yield of 2 irrigation regimes was higher than 4 irrigations.Nineteen of 24 cultivars,such as shi4185,ji5579 and shixin618,showed higher yield under 2 irrigation regimes than 4 irrigations,the others showed reversed.Based on the drought resistance index,the proportion of types of drought resistant,intermediate and drought susceptible was 4.2%,66.6%,29.2% and 20.8%,58.4%,20.8% for 2 irrigations and 4 irrigations respectively.It was recommended that shimai12,Ji5579,Shixin618 were more suitable to water saving cultivation for their better yield performance and water saving traits.

Key words: Winter wheat, Cultivars, Grain yield, Water saving trait, Drought resistance index

CLC Number:

S512.01

ZHAO Hong-liang, MA Rui-kun, LIU En-cai, JIA Xiu-ling, ZHANG Quan-guo, HOU Li-bai, ZHANG Li-hua, YAO Yan-rong, YANG Li-hua. Responses of Grain Yield and Water Saving Traits to Water Regimes of Different Winter Wheat Cultivars[J]. ACTA AGRICULTURAE BOREALI-SINICA, 2006, 21(2): 70-74. doi: 10.3321/j.issn:1000-7091.2006.02.017.

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