ACTA AGRICULTURAE BOREALI-SINICA ›› 2002, Vol. 17 ›› Issue (1): 16-20. doi: 10.3321/j.issn:1000-7091.2002.01.004

Special Issue: Wheat Drought and water saving

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Effects of Water Operation on Water Using Traits and field After Anthesis on Two C}ltivars of Winter Wheat

Guo Tiancai1, Peng Yu1, Yan Yaoli1, Li Xiang1, Shen Dongfeng2, Wang Shuzi2   

  1. 1. National Engineering Research Center for Wheat, Zhengzhou 450002, China;
    2. Luoyang Institute of Agricultural Science, Luoyang 471022, China
  • Received:2001-09-07 Published:2002-03-28

Abstract: Under conditions of shielding natural precipitation,the effcts is of water control on cultivar Yumai No.34 and Luoyang 8716 was studied. Results indicated that:in 7-27d after anthesis,the more amount of irrigation water, the higher of water consumption, meanwhile,water use efficiency declined the water consumption peak of later stage happened between period of anthesis and 14d after anthesis,the average water consumption rate was 5 mm every day,then dedined;the percentage of water consumption between 6d after anthesis and maturity stage to the total water consumption w as high,it was 33%-35% for Yumai No. 34 and 27%-30% for Luoyang 8716 irrigation in 7-14d aftter anthesis increased thousand kernel weight and yield obviously,but that of 21-28 d after anthesis was not,irrigation at 28d after anthesis, the yield was smaller than that of ck;water use efficiency of early-ripe cultivar Yumai No.34 was higher than that of late-ripe cultivar Luoyang 8716; water saving irrigation made Luoyang 8716 rippened earlier 9-14 d, then the yield decreased seriously.

Key words: Winter wheat, Water operation, Later development stage, Water use traits

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Cite this article

Guo Tiancai, Peng Yu, Yan Yaoli, Li Xiang, Shen Dongfeng, Wang Shuzi. Effects of Water Operation on Water Using Traits and field After Anthesis on Two C}ltivars of Winter Wheat[J]. ACTA AGRICULTURAE BOREALI-SINICA, 2002, 17(1): 16-20. doi: 10.3321/j.issn:1000-7091.2002.01.004.

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