Lipid peroxidation and seed emergency in progenies of the yellow passion fruit plant.
2012
OLIVEIRA, J. P. B. de | ALEXANDRE, R. S. | NEGREIROS, J. R. da S. | LOPES, J. C. | BRUCKNER, C. H. | JOÃO PAULO BESTETE DE OLIVEIRA, INSTITUTO FEDERAL DO ESPÍRITO SANTO; RODRIGO SOBREIRA ALEXANDRE, UNIVERSIDADE FEDERAL DO ESPÍRITO SANTO; JACSON RONDINELLI DA S NEGREIROS, CPAF-AC; JOSÉ CARLOS LOPES, UNIVERSIDADE FEDERAL DO ESPÍRITO SANTO; CLAUDIO HORST BRUCKNER, UNIVERSIDADE FEDERAL DE VIÇOSA.
The objective was to evaluate the percentage of emergency plantlets and lipid peroxidation in seeds of 29 half-sib progenies of yellow passion fruit (Passiflora edulis Sims.) after 24 months under storage. The experimental design was completely randomized, with four replications of 50 seeds each, from which the treatments were the progenies (1-29). The evaluation of the percent plantlet emergency was accomplished at 14 and 28 days after sowing. The lipid peroxidation of the seeds was expressed as malondialdehyde (MDA) content that was determined by the TBARS method. Approximately 21% of those half-sib progenies maintained the viability of their seeds for twenty-four months under storage. The results point out a remarkable genetic variability for vigor and emergency of the yellow passion fruit plantlets, with occurrence of individuals with high and other ones with low capacity to maintaining the physiologic quality of their seeds after storage.
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