The invention belongs to the field of
gene engineering, and discloses a method for rapidly evaluating the
plant growth capacity of transgenic herbicide-resistant cotton in the
seedling stage, and the method comprises the following steps: S1,
sowing transgenic cotton seeds to be detected; s2, when cotton cotyledons are completely flattened,
glyphosate with the working concentration of 0 time or 2 times or 4 times is sprayed; s3, 7 days after spraying, respectively taking the overground part and
rhizosphere soil of the cotton, and detecting the
dry weight of the overground part and the
water content and
microbiome of the
rhizosphere soil; and S4, judging the
plant growth capability of the transgenic herbicide-resistant cotton in the
seedling stage. The method provided by the invention is a rapid, standardized and repeatable
seedling stage
plant growth ability evaluation method, is suitable for multi-material and large-scale determination, is easy to popularize and apply in the agricultural field, and has urgent and important practical significance for accelerating
glyphosate-resistant cotton variety breeding and industrial application.