ACTA AGRICULTURAE BOREALI-SINICA ›› 2013, Vol. 28 ›› Issue (5): 187-193. doi: 10.7668/hbnxb.2013.05.032

Special Issue: Wheat Drought and water saving

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Effects of Irrigation on Carbon-nitrogen Metabolism,Yield and Water Use Efficiency of Winter Wheat in Huang-Huai-Hai Area of China

XU Xin-zhi, MA Chao, SUN Hui-na, SUN Qian, WANG Zhi-qiang, LIN Tong-bao   

  1. College of Agronomy, Key Laboratory of Physiology, Ecology and Genetic Improvement of Food Crops, Henan Agricultural University, Zhengzhou 450002, China
  • Received:2013-05-06 Published:2013-10-28

Abstract: In order to research the influence of irrigation on carbon and nitrogen metabolism,yield and water use efficiency of winter wheat,effects of irrigation on soluble protein content and nitrate reductase activity,soluble total sugar content and total nitrogen content of winter wheat were studied in field conditions. The results showed that,with the reduction of the irrigation times,nitrate reductase activity,soluble sugar and total nitrogen content and soluble sugar transfer rate were reduced, carbon and nitrogen ratio increases, grain number Per ear, 1000-seed weight and ear number per unit area decreased,soluble protein content showed a trend of decrease from the 14 d af-ter flowering. Compared with normal irrigation ( W3 ), the yield of two irrigations ( W2 ) and one irrigation ( W1 ) decreased by 11. 37%and 30. 80%,the yield of Zhoumai 18 decreased by 14. 69%and 37. 44%,the yield of Ai-kang 58 decreased by 9.19%and 26.97%.Water use efficiency of Zhoumai18 was the biggest in W3 and W2,with 27.6,28.9 kg/(ha· mm),Yunong 202 was the least,only 21.8,23.9 kg/(ha· mm),respectively,Aikang 58 in W1 was the biggest 26.1 kg/(ha· mm),Yunong 202 was the least,only 21.5 kg/(ha· mm).Drought resistance in-dex showed that,Aikang 58>Zhengmai 366>Yumai 49>Yunong 202>Zhoumai 18.

Key words: Winter wheat, Irrigation, Carbon-nitrogen metabolism, Yield, WUE

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Cite this article

XU Xin-zhi, MA Chao, SUN Hui-na, SUN Qian, WANG Zhi-qiang, LIN Tong-bao. Effects of Irrigation on Carbon-nitrogen Metabolism,Yield and Water Use Efficiency of Winter Wheat in Huang-Huai-Hai Area of China[J]. ACTA AGRICULTURAE BOREALI-SINICA, 2013, 28(5): 187-193. doi: 10.7668/hbnxb.2013.05.032.

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