Sorghum plant field drought resistance phenotype comprehensive evaluation method

The invention belongs to the technical field of modern agriculture and sorghum drought resistance, and particularly relates to a sorghum plant field drought resistance phenotype comprehensive evaluation method. The method comprises the following steps: planting sorghum plants by adopting a conventional method; measuring main morphological indexes of the plants by adopting a field natural identification method; selecting seeds and testing the seeds by adopting a conventional standard, and performing data statistical analysis; calculating a drought resistance coefficient, integrating the droughtresistance coefficient, and performing K-means clustering method classification; calculating a drought resistance index, and carrying out K-means clustering method classification; calculating a membership function value, calculating the weight of the comprehensive index to obtain a comprehensive evaluation value, and then performing K-means clustering method classification; and evaluating the drought resistance of a plan