. Wuryaningsih, S., K. Budiarto, and Suhardi. 2008. The Effects of Cultural Practices and Pinching Methods on the Growth and Flower Production on Carnation. Carnation is one of the important cut flowers in Indonesian floriculture trade. The demand of this commodity has increased significantly up to this moment. Improvement of cultural practices is needed to make the business more efficient and profitable. The research was conducted to find out the effect of plant arrangement, plant density, and method of pinching on growth and flower production of carnation. The experiment was carried out under plastichouse conditions at Segunung Research Station, Indonesian Ornamental Crops Research Institute from September 2004 to August 2005. A split-split plot randomized completely block design with 3 replications was used. The main plot was plant arrangements, namely zig-zag and straight in row pattern. The subplot was planting densities of 25 and 36 plants/m2, while the sub-subplot was pinching methods, namely single, 1½, and double pinching. The results of the experiment showed that the growth and flower production of carnation were not influenced by plant arrangement. Number of axillary buds was increased with less planting density. However, due to the higher number of plants per unit area, the number of harvested flowers was higher in the treatment of 36 plants/m2. Compared to 1½ and single pinching methods, double pinching only gave higher number of axillary buds and stalk length, but was not significant affect other growth and reproductive parameters.
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