The Effect of Elevation on Growth Stage of Maize in the Western Yellow River Corridor of Gansu Province
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S826.1 S513

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    Abstract:

    Field experiments of four locations were conducted in 1999 and 2004 in Zhangye city of the Western Yellow River Corridor of Gansu province. Experimental maize varieties 608, Jiudan 3 and Zhongdan 2 belongs to different maturation groups. The elevations of four experimental locations is 1506.5,1706.5,2000.0 and 2231.5 m respectively. The results indicated that maturation was delayed gradually with the rise of elevation under same sowing condition. There was a significantly positive correlation between elevation and days of sowing to maturation for the maize varieties. Growth stage delayed 5 - 6 d with elevations raising per 100 m. The positive correlation had been shown between the elevation and days of sowing to elongation. There was a negative correlation between the elevation and plant height of maize varieties.

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History
  • Received:November 10,2004
  • Revised:December 07,2004
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