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Accelerated aging test and its relationship to physiological potential of soybean seeds

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posted on 2019-09-11, 02:41 authored by Thaisa Cavalieri Matera, Lucas Caiubi Pereira, Alessandro Lucca Braccini, Francisco Carlos Krzyzanowski, Carlos Alberto Scapim, Samara Cavalli Piana, Danilo Cesar Volpato Marteli, Renata Cristiane Pereira, Gláucia Cristina Ferri, Andreia Kazumi Suzukawa

Abstract: Although accelerated aging is one of the tests most used for evaluation of the physiological quality of soybean seeds, there are few studies that relate it to other physiological tests used for the crop. In this context, the objective of this study was to investigate the relationship of accelerated aging to the results of physiological performance obtained in the vigor tests most frequently used in the soybean quality control system (germination, first count, seedling vigor classification, accelerated aging, electrical conductivity, emergence speed index, final emergence in sand substrate, and field emergence). The experiment was conducted with seeds that had different vigor levels, adopting a completely randomized experimental design with four replications. Pearson simple correlation analysis (r) and simple linear regression analysis at both 1% and 5% probability were conducted on the data. The results showed that the seedling vigor classification test (r = 0.9160) and the field emergence test (r = 0.9198) were those that best correlated with accelerated aging, followed by the germination (r = 0.8690), first count of germination (r = 0.8460), and electrical conductivity (r = 0.8912) tests.

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    Journal of Seed Science

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