Evaluation method of wheat tolerance to waterlogging based on principal component and cluster analysis

Abstract

The present application relates to germplasm evaluation technical field, and specifically relates to a method for evaluating the tolerance of wheat to waterlogging based on cluster analysis and principal component analysis. The present application is to solve the demand for evaluating the tolerance of wheat to waterlogging at different periods. The tolerance of different wheat in bottles to waterlogging is analyzed by cluster analysis and principal component analysis. The comprehensive evaluation function involved in the principal component analysis is: wherein Y 1、 Y 2 and Y 3 represent three principal component score indexes respectively. The higher the F value, the stronger the tolerance of wheat to waterlogging. Cluster analysis is used to determine the wheat of different tolerance grades from class I to class IV, wherein class I is the tolerance type of wheat. The growth force and yield potential of different varieties under stress environment are embodied, which provides a method for comprehensive evaluation of the tolerance of wheat to waterlogging and provides germplasm resources for the study of the tolerance of wheat to waterlogging.

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