EFFECT OF CUTTING MATERIAL SELECTION AND INTENSITY OF SUNLIGHT RADIATION ON GROWTH OF Mucuna bracteata SEEDLING
Abstract
The aims of this research is to determine the growth of Mucuna bracteata seedlings from cuttings material, and its response to the selection of cuttings and the response to the percentage of irradiation (sunlights) intensity. This research was conducted at Alur Dumai Estate Nursery Garden, Lahan Tani Sakti Company, Rokan Hilir District, Riau Province. The experiment was conducted on May - July 2013. This research used experimental method with Split Plot Experiment design with 2 factors, the factors are: First factor, intensity of sunlight as main plot consists of 3 levels: P0 = Intensity of irradiation 100%, P1 = Intensity of irradiation 75%, P3 = Intensity of 50% irradiation. The second factor is the segment of cuttings material as sub plot which consists of 3 levels: T1 = fourth cuttings segment from shoot, T2 = seventh cuttings segment from shoot, T3 = tenth cuttings segment from shoot. The observed data were analyzed by Analysis of Variance. The result of LSD test at the 5% test level showed that the sunlight intensity treatment had a significant effect on the number of seedling leaves. From the average calculation of each parameter, the intensity of 100% sun showed the highest response to the number of seedling leaves. While on the treatment of cutting material gives a significant effect on the fresh weight of seedlings, dry weight of seedlings, the number of leaves, the height of seedlings. The seventh segment cutting material gives the highest effect to the number of seedling leaves that is 6.33 leaves, height of seedlings with the height of seedling 75.00 cm, fresh weight of seedlings which is 14.05 g, and to the to the dry weight of seedlings which is 2.48 g.References
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