ISHS Acta Horticulturae 517: XXV International Horticultural Congress, Part 7: Quality of Horticultural Products
INFLUENCE OF LIGHT, PLANT DENSITY AND DISINFECTION IN SPORE GERMINATION OF FERN BLECHNUM BRASILIENSE DESV. BLECHNACEAE |
| Authors: | K.F.L. Pivetta, A.A.J. Gomes, C. Damião Filho |
| Keywords: | Blechnum brasiliense, fern, spore germination |
| Abstract:
The present assay had as objective evaluating spore germination of Blechnum brasiliense in relation to light, plant density and disinfection. The assay was carried out at Jaboticabal, São Paulo State, Brazil, from February, 22 to June, 30, 1996. The experimental design was randomized blocks on a factorial scheme (3x2x2), consisting of 12 treatments, three environments (shade-house, dark-house and germination camera), 2 densities (0.005 grs and 0.010 grs of spores/treatment) and presence or absence of disinfection. The leaf coverage area (130 days) and the number of days necessary to germinate were evaluated. The germination camera data were not analysed because they were insignificant; consequently, the remining data were analysed on a 2x2x2 scheme. The shade-house provided larger green covering area and a faster germination. The density of 0.010g of spore/treatments presented the largest green covering area. The supply of partial light was necessary for good germination. The interaction between the environment and the density had significant effect on the green covering area. | |
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