Physiological maturity of Angico Vermelho seeds according to fruit development patterns

Abstract

This study aimed to analyze the physiological maturity of Anadenanthera colubrina (Vell.) Seeds combined with fruit maturation, determining the ideal moment to collect the fruits. The fruits used in the study were collected from trees in the municipalities of Jacaré dos Homes and Monteirópolis, in the Sertão de Alagoas. A completely randomized design was adopted, with four replications containing 50 seeds each. The fruits were classified into five stages (treatments) according to the color of the pod: stage 1 (greenish), stage 2 (green / yellow), stage 3 (green / red), stage 4 (red / wine) and the stage 5 (dark brown). The variables analyzed in determining the physiological maturity of the seeds and association with the fruits were: dry mass, biometric analysis and degree of moisture of the seeds. Through germination test, the germination speed index, germination percentage, percentage of dead seeds and the average germination time were also verified. The data were submitted to analysis of variance and the significant variables by the F test had their means compared by the Tukey test (p <0.05). In general, fruits of angico should be collected when at stage 5 of maturity, because in that stage the seeds reach physiological maturity and are able to germinate.