Resumo

CALDERON, Agatha Teresa Rosado et al. Reduction of germination of black bean (Phaseolus vulgaris L.) under cold and environmental storage. Rev. de Ciências Agrárias [online]. 2023, vol.46, n.4, pp.31-40.  Epub 11-Jul-2023. ISSN 0871-018X.  https://doi.org/10.19084/rca.31413.

The seed storage characteristics will contribute to maintaining or decreasing the quality of the seeds themselves. In this assumption, the objective of the study was to analyze the effect of cold during several periods of time in 12 black bean cultivars. The twelve black bean varieties were conditioned, the weight of 100 seeds was determined and they were stored under two conditions (27,22 ° C and 62 % HR) and refrigerated (4,1°C and 13 % HR) for 18 months, in which samples were taken at the beginning, 3, 6, 9, 12 and 18 months to evaluate the percentage of germination and abnormal seedlings. During storage, germination decreased and abnormal seedlings increased. Differences were identified among the varieties of which ‘Comapa’ tolerated storage under tropical conditions with only 16,5 percentage points of reduction while the ‘Veracruz’ and ‘Exp. 2’ varieties recorded reductions of 50,5 and 40 percentage points, respectively.

Palavras-chave : Seed deterioration; seed quality; abnormal seedlings.

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