Screening method of drought-enduring special rice seeds

The invention relates to the technical field of rice screening, in particular to a screening method of drought-enduring special rice seeds. The method comprises the following steps: randomly selecting rice seeds from seeds, and dividing the rice seeds into a plurality of groups according to body length; selecting test seeds from the rice seeds, disinfecting the test seeds, and cleaning and airing the test seeds; putting the test seeds into a culture dish, adding a nutrient solution and a penetrating fluid into the culture dish, and then putting the culture dish into a temperature-controlled and humidity-controlled incubator for culturing; and taking out the culture dish from the incubator, and calculating the average survival rate and root-bud ratio of the test seeds according to the germination condition of the test seeds. According to the method, an aqueous two-phase system formed by polyethylene glycol and polyacrylamide is used for simulating an environment in which the growth of plants is obviously inhib