The physiological quality of the seeds of passion fruit (Passiflora spp.) grown at different altitudes

Abstract

Altitudes, ranging between 100 m and 900 m are the most suitable for growing passion fruit and the studies on the distinct geographical locations suggest the expression of different genotypes under the influence of adequate environmental conditions. The objective of this study was to evaluate the physiological quality of the seeds of Passiflora spp., cultivated at three different altitudes in the state of Espírito Santo, Brazil. Before conducting the physiological tests for seed quality, pre-tests were performed on the physically scarified, gibberellic acid-treated, and intact seeds of the yellow passion fruit (Passiflora edulis Sims f. flavicarpa Degener), the purple passion fruit (Passiflora edulis Sims), and the sweet passion fruit (Passiflora alata Curtis), collected from three different altitudes (high, medium, and low), in order to overcome dormancy. The higher values of germination and vigor were observed after the pre-germination treatments of the intact seeds of the yellow passion fruit, the scarified seeds of the purple passion fruit, and the gibberellic acid-treated seeds of the sweet passion fruit. The seeds with the highest values of germination and vigor were selected for the accelerated aging test with a saturated salt solution at 43 ºC for 72 h and the controlled deterioration test with 25% of moisture at 45 ºC for 24 h, respectively. Using these tests, it was possible to differentiate the species of passion fruit, collected from different altitudes. The seeds of the yellow passion fruit and the seeds, collected from higher altitudes presented higher physiological quality in this study.

Passion fruit (Passiflora edulis): Nutritional composition, bioactive compounds, utilization of by-products, biocontrol, and organic fertilization in cultivation

“…Las semillas son de color negro. Esta variedad es conocida por su calidad en cuanto a sabor y contenido en nutrientes (Marciel et al, 2018). El maracuyá es una fruta que cuenta con un alto valor nutritivo y medicinal en general.…”

Maturation indexes and physiological quality of seeds and fruits of Morinda citrifolia L.

“…The fruit maturation stage and place of harvest are crucial for fruit quality and for obtaining seeds of high physiological quality, as observed in Capsicum baccatum L. (PEREIRA et al, 2014) and Passiflora spp. (MACIEL et al, 2018).…”

Recuperação De Matéria Seca E Matéria Mineral De Silagem De Cana - De - Açúcar Tratada Com Inoculante E Diferentes Níveis De Aditivos Químicos

“…Esses autores obtiveram maiores valores de germinação e maior uniformidade quando as sementes foram embebidas em 100 e 200 mg L -1 de GA 3 , o que corrobora os resultados encontrados neste estudo.Entretanto o uso do fitorregulador vegetal interferiu na superação de dormência das sementes de P. alata Curtis. Dados semelhantes àqueles obtidos porMaciel et al (2018), em que observaram que as sementes de P. alata Curtis apresentaram maiores valores de germinação, quando tratadas com GA 3 .…”