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Effect of fruit maturity stage and fermentation period on the germination of passion fruit (Passiflora edulis f. flavicarpa Deg.) and sweet granadilla seeds (Passiflora ligularis Juss.)

Aguacía, Leidy Milena and Miranda, Diego and Carranza, Carlos (2015) Effect of fruit maturity stage and fermentation period on the germination of passion fruit (Passiflora edulis f. flavicarpa Deg.) and sweet granadilla seeds (Passiflora ligularis Juss.). Agronomía Colombiana, 33 (3). pp. 305-314. ISSN 2357-3732

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In Colombia, we have found 165 species that belong to the Passiflora genus and, of these, about 50% have edible fruits. Among these, passion fruit, sweet granadilla and purple passion fruit are considered to be of economic importance. This study aimed to evaluate the effect of fruit ripeness and pulp fermentation time period (mucilage) on the seed germination of passion fruits (Passiflora edulis f. flavicarpa Deg.) and sweet granadillas (Passiflora ligularis Juss.) under laboratory conditions (alternating temperatures (30/20ºC, 12/12 hour), 60% relative humidity and in darkness for 60 days) and to establish growth parameters leaf area and plant dry mass. The seeds were extracted from fruits in three maturity stages (M4, M5 and M6) and five fermentation periods (0 days (F0);1 day (F1), 2 days (F2), 4 days (F4) and 8 days (F8)) using a completely random design with a 3x5 factorial arrangement (maturity stage x fermentation time), with four replicates of 50 seeds each. It was found that the M6F1 and M5F1 treatments were more favorable in terms of germination for the passion fruit (94.5 and 92.0%, respectively), while, for the sweet granadilla, the M6F2 (39%) and M6F1 (35%) treatments were more favorable. The growth parameters demonstrated that the highest dry mass value occurred in M6F8 for the passion fruit (136.76 mg) and in M6F1 for the sweet granadilla (104.73 mg); furthermore, these values increased as the maturity stage of the two species progressed. The leaf area of the passion fruit had maximum values in seedlings obtained from the treatment with maturity stage M5F2 and a fermentation period of 1 day, M5F2 (18.3 cm2), while the leaf area of the sweet granadilla increased in the same fashion as the dry mass, with M6F8 having the highest value (16.8 cm2).

Tipo de documento:Artículo - Article
Palabras clave:tropical fruits, germinability, breeders seed, ripening, mucilages, agronomic characters
Temática:5 Ciencias naturales y matemáticas / Science > 57 Ciencias de la vida; Biología / Life sciences; biology
5 Ciencias naturales y matemáticas / Science > 58 Plantas / Plants
Unidad administrativa:Revistas electrónicas UN > Agronomía Colombiana
Código ID:55310
Enviado por : Dirección Nacional de Bibliotecas STECNICO
Enviado el día :19 Dec 2016 15:17
Ultima modificación:23 Junio 2017 20:42
Ultima modificación:23 Junio 2017 20:42
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