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Journal of Agriculture ›› 2016, Vol. 6 ›› Issue (7): 13-18.doi: 10.11923/j.issn.2095-4050.cjas16030017

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Grey Correlative Degree Analysis and Comprehensive Evaluationof the different broomcorn millet varieties

  

  • Received:2016-03-21 Revised:2016-05-17 Accepted:2016-05-25 Online:2016-07-18 Published:2016-07-18

Abstract: The aim was to discuss high yield breeding through comprehensive evaluation of main agronomic characters of different broomcorn millet varieties. The classification was conducted using cluster analysis methods, and the correlation degree between the main agronomic characters and yield was ranked by the gray correlation degree method. The results showed that the correlation degree between 8 agronomic characters of 18 broomcorn millet varieties and yield was as follows: growth duration> stem height> rates of broomcorn millet> spike weight per ear>number of branches>spike length>1000-seed weight>single ear weigh. 6 of the 18 tested varieties had 20% more yield than that of the control‘Jinshu 4’. Among them, the yield of‘soft grey broomcorn millet (Ansai)’reached 4262 kg/hm2 and ranked the first, which was 31.11% higher than that of the control variety‘Jinshu34’which was 3209 kg/hm2. In order to obtain the high yield of different varieties, the cultivation period should be extended, stem height and branching spike number should be regulated by density to improve the rates of broomcorn millet, and make groups and individual reach the best state in growth and development.

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