Cluster analysis of wheat breeding lines tested in the identification nursery
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S512.1

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    Abstract:

    The cluster analysis of wheat breeding lines tested in the identification nursery was conducted based up the 10 agronomic traits,such as plot yield,heading date, plant height,spike length,spikes/hm~2,grains/spike,spike weight,1000 grain weight, plump degree of grains and grain horni-ness.All the 38 strains could be classified into five groups according to the method of deviation square sum with D~2=2.083.The relationships of strains among groups or within a group and between each of them and the control variety could be clearly understood through the analyses.Nine strains with good integrated agronomic traits were screened out,and the strains in each group were characterized.Such analyses would be used as a method for more accurately and quantitatively identifying lines of high generation in the wheat breeding nursery.

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  • Received:
  • Revised:June 12,2000
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