ACTA AGRICULTURAE BOREALI-SINICA ›› 2011, Vol. 26 ›› Issue (6): 114-117. doi: 10.7668/hbnxb.2011.06.022

Special Issue: Corn Drought and water saving

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Study on the Relation between Root Bleeding Sap and Yield

LI Guo-qiang1,2, ZHOU Ji2,3, CAO Zhi-yan1, LU Xiao-fang1, XU Ping2, ZHANG Zheng-bin2   

  1. 1. Xingtai Academy of Agricultural Sciences, Xingtai 054000, China;
    2. Research Center for Agricultural Resources, Institute of Genetics and Development Biology, Chinese Academy of Sciences, Shijiazhuang 050016, China;
    3. Gansu Agricultural University, Lanzhou 730070, China
  • Received:2011-07-28 Published:2011-12-28

Abstract: In order to find the relationship between the root bleeding sap and yield,and select the drought-resistance high-yield varieties. This paper used 10 corn hybrids which widely cultivated in North China Plain. According to statistics analysis of the bleeding sap in a day, it is found that the bleeding sap in morning have positive correlation with the yield, the bleeding in 7: 00-8: 30 had direct liner relationship with the yield. It indicated that the root bleeding sap in early morning could be used as index for drought-resistance. The 10 corn hybrids could be classified in four clusters with the root bleeding sap and the yield. In that,Liyu 18, Jiyu 9,Zhengdan 958,Xingkang 2 and Luyu 13 was drought-resistance and stable-yield, Jundan 20 was drought-resistance and high-yield. These varieties could be planted in drought for stable and high yield.

Key words: Maize, Root bleeding sap, Yield

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Cite this article

LI Guo-qiang, ZHOU Ji, CAO Zhi-yan, LU Xiao-fang, XU Ping, ZHANG Zheng-bin. Study on the Relation between Root Bleeding Sap and Yield[J]. ACTA AGRICULTURAE BOREALI-SINICA, 2011, 26(6): 114-117. doi: 10.7668/hbnxb.2011.06.022.

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