Image evaluation method for screening waterlogging resistance of wheat in seedling stage

Abstract

The invention relates to an image evaluation method for screening waterlogging tolerance of wheat in a seedling stage in the technical field of wheat waterlogging invasion monitoring, which comprises the following steps of: 1, planting a wheat seedling plant to be screened and evaluated in a planting pot convenient to move, and conventionally cultivating to a trefoil stage; 2, waterlogging the wheat seedlings in the trefoil stage with the basin for 10-20 days, then taking out the wheat seedlings with the basin, and naturally draining water; thirdly, front projection images of the wheat seedlings are shot; step 4, carrying out de-noising processing on the image by using Sciit-image software; 5, extracting a texture parameter value ASM of each image; and 6, judging the waterlogging resistance of the wheat seedlings according to the value of the ASM. According to the method disclosed by the invention, nondestructive identification and evaluation of the waterlogging damage in the seedling stage of wheat can be realized, rapid and intelligent evaluation is realized, and the identification efficiency is improved.

Description

technical field [0001] The invention relates to the technical field of wheat waterlogging infestation monitoring, in particular to an image evaluation method for screening the waterlogging tolerance of wheat in the seedling stage in the laboratory stage. Background technique [0002] Globally, 10-15 million hectares of wheat are affected by waterlogging each year, causing yield losses of 20-50%. In the middle and lower reaches of the Yangtze River in my country, the temporal and spatial distribution of precipitation is irregular, which often leads to over-wet soil, resulting in frequent waterlogging of wheat in each growth period. Waterlogging negatively affects the growth and development of wheat seedlings by inhibiting root length, reducing leaf nitrogen concentration, and reducing tillering, resulting in loss of panicle number and yield. At present, the waterlogging tolerance of the varieties widely planted in the middle and lower reaches of the Yangtze River in my count...

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Problems solved by technology

[0004] The present invention aims at the problems of evaluating the waterlogging resistance of wheat through the change of agronomic traits in the prior art, which needs to carry out damage sampling measurement on the wheat seedlings, and the evaluation procedure is time-consuming, labor-intensive and inefficient, and provides a method for screening the waterlogging resistance of wheat seedling stage. The unique image evaluation method realizes the non-destructive identification and evaluation of wheat seedling waterlogging, realizes rapid and intelligent evaluation, and improves the identification efficiency

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