Lipid peroxidation and seed emergency in progenies of the yellow passion fruit plant

João Paulo Bestete De Oliveira,José Carlos Lopes,Rodrigo Sobreira Alexandre,Claudio Horst Bruckner,Jacson Rondinelli Da Silva Negreiros

doi:10.1590/s0100-29452012000300009

Abstract

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.

Highlights

Passiflora edulis, the passion fruit native from Brazil, has several common names, and presents a wide variability (BERNACCI et al, 2008)
In addition to its seeds serve as a vehicle for induction of resistance in the yellow passion fruit Xanthomonas axonopodis pv. passiflorae (BORO et al, 2011)
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

Summary

Introduction

Passiflora edulis, the passion fruit native from Brazil, has several common names (such as sour passion fruit, yellow passion fruit, black passion fruit, and purple passion fruit), and presents a wide variability (BERNACCI et al, 2008). Among those species, the yellow passion fruit plant P. edulis Sims. Alexandre et al (2009) report the importance in using the natural genetic variability of the commercial species P. edulis f. Alexandre et al (2004) and Negreiros et al (2008) found genetic variability affecting both percent germination and emergency speed in Passiflora edulis f. High genetic variability is found in the Passiflora genus. Alexandre et al (2009) report the importance in using the natural genetic variability of the commercial species P. edulis f. flavicarpa in genetic improvement programs. Alexandre et al (2004) and Negreiros et al (2008) found genetic variability affecting both percent germination and emergency speed in Passiflora edulis f. flavicarpa

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Conclusion