Determination of vigor by tetrazolium in peanut (Arachis hypogaea L.) seeds under different storage conditions
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Abstract
At present, seed analysts do not have suitable test patterns to analyze vigor in peanut seed by Tetrazolium. The aim of this work was to prepare a dye pattern to determine the vigor of peanuts cv. Florman using various storage conditions in correlation with field test assays. The peanut cv. Florman seeds were stored with and without shell, submitted to accelerated aging conditions in order to enlarge the variability of the quality. The variables measured were percentage of germination, percentage of vigorous viable seeds, less vigorous, non-viable, and percentage of emergent plantlets at field. The results revealed that the Tetrazolium test is a suitable method to evaluate the quality of seed lots of peanuts cv. Florman, since different vigor levels can be established. These can be determined according to color variation, its intensity, and position on the embryonic apex and cotyledon. Thus, high vigor seeds show bright red carmine embryos and steady tissue when cut. The proposed dye pattern allows estimating the emergence of peanut seeds under field conditions.
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References
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