SEEDLING LENGTH AND DETERMINATION OF VIGOR INDEXES IN SOYBEAN SEEDS THROUGH IMAGE ANALYSIS
DOI:
https://doi.org/10.32404/rean.v13i1.9745Keywords:
Glycine max, Seed vigor, Seedling performance, Computerized image analysisAbstract
Tests based on seedling performance, such as length measurements, require skilled labor and may become time-consuming depending on the number of seed lots analyzed. Computerized image analysis offers an alternative for quickly and efficiently evaluating the physiological potential of seeds, although details such as seed positioning can influence the results. This study aimed to verify the effectiveness of image analysis and to determine vigor and seedling growth indexes in soybeans based on seed positioning in the seedling length test. Seeds from four cultivars were used to assess quality through water content, germination, electrical conductivity, seedling length and dry mass tests, with BMX DESAFIO cultivar with three vigor levels (high, medium, and low) being used for the image analysis. In the seedling length test, seeds were placed on the substrate with the hilum oriented: (1) to one of the paper's sides, (2) upward, and (3) downward. The experimental design was a completely randomized 3x3 factorial scheme (vigor levels x seed positions). Measurements included hypocotyl length, root length, seedling vigor, growth, uniformity, germination, average length, and dry mass. The position and vigor of soybean seeds influence seedling growth, which was verified through the Vigor-S system. The Vigor-S system is effective for evaluating seedling length in relation to seed vigor and positioning. Positioning the hilum of medium- and high-vigor soybean seeds to the side of the paper is also a viable alternative for seedling length tests.
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