Selection of vinca (Catharanthus roseus (L.) G. Don) for use as pot plant
2009
Wipaporn Sawangmee(Kasetsart University, Bangkok (Thailand). Faculty of Agriculture. Department of Horticulture)
Mediterinian I, II, and III are 3 varieties of Vinca (Catharanthus roseus) which selected from Mediteranean hybrid group. They were used for selection vinca used as pot plant. All cultivars were received from Ms. Somkiat Wongratanakarn. This experiment was conducted at experimental field, Department of Horticulture, Kasetsart University, Bangkhen Campus during September to December 2008. Number of pod per branch, number of branch per plant, width of plant, number of flower and size of flower were recorded. The suitable characteristics for selection program are low number of pod per branch, high number of branch per plant and number of flower, compact plant and large size of flower. The results shown that Mediterinean I and II gave the best results for used as pot plant. Because they were not significant different and gave the large size of width (41.20+-3.85 and 42.30+-7.39 respectively), low number of pod per plant (27.20+-12.70 and 25.00+-6.70), high number of branch per plant (10.00+-0.00 and 9.60+-2.07), large size of flower (4.78+-0.38.and 4.46+-0.20) and high number of flower per plant (14.1+-4.67 and 12.4+-5.56). Moreover their sepal color was purple and white respectively but same yellow color of center.
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