National Academy of Agricultural Sciences (NAAS)
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PRINT ISSN : 2319-7692
Online ISSN : 2319-7706 Issues : 12 per year Publisher : Excellent Publishers Email : editorijcmas@gmail.com / submit@ijcmas.com Editor-in-chief: Dr.M.Prakash Index Copernicus ICV 2018: 95.39 NAAS RATING 2020: 5.38 |
Passiflora is a large genus in the family Passifloraceae Juss. ex DC. Many Passiflora species are propagated by seed. However, seeds are often slow to germinate and have low germination rates due to seed dormancy factors. This study was conducted to evaluate four different pre-germination treatments on enhancing germination potential in seven Passiflora spp. Germination was monitored every 3 days for 90 days. Germination started after two weeks and then, a gradual increase was observed in germination in most species. Passiflora laurifolia L. showed maximal germination percentage (75%) with scarification plus fermentation; thus, it is the recommended treatment for this species. The highest germination rate was obtained for Passiflora maliformis L. at 0.23 in scarification plus GA3. For P. maliformis, scarification in combination with GA3 was the most effective treatment, resulting in a germination percentage of 40%. Passiflora tripartita var. Mollissima showed highest germination percentage when soaked in water or scarified plus GA3 (30%). Scarification alone resulted in the best germination percentage in Passiflora ligularis Juss. (30%). No unique pre-germination treatment resulted in complete germination for all species. When compared to results from previous research, Passiflora edulis f. edulis Sims. and Passiflora incarnata L. did not germinate at acceptable levels, whereas similar germination percentages in P. tripartita var. mollisima, P. maliformis, and P. ligularis depended on treatment. Further research is needed to determine dormancy types present in these species and the best treatment to overcome them.
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