Screening method of deep-sowing-resistant peanut germplasm

The invention relates to the technical field of peanut breeding, and provides a screening method of deep-sowing-resistant peanut germplasm. The method comprises the following steps of (1) seed treatment: selecting plump and uniform peanut seeds with the uniform size, and performing disinfection and germination acceleration for use; (2) indoor sowing experiment: performing an experiment in an illumination incubator, placing the peanut seeds in a culture vessel for germination, and controlling the water height in the culture vessel to be 60 percent to 70 percent of the seed height; (3) outdoor sowing experiment: sowing the peanuts according to the sowing depths of 3 cm, 5 cm and 7 cm; (4) index determination; (5) data analysis; and (6) screening. According to the screening method of the invention, through indoor sowing culture and outdoor peanut variety seedling emergence character gray correlation evaluation analysis under different sowing depth conditions, the deep-sowing-resistant characteristics of tested m