Influence of Pollination Time and Flower Proportion on the Success Rate of Pollination and Yield of Melon Varieties ( Cucumis melo L.)

摘要

Background and Objective: The success rate of pollination depend on receptive of stigma, pollen viability, pollination time and amount of pollen to be pollinated. The availability of pollen in one male flower with good viability is expected to pollinate more than one female flower. This research is aimed to determine the success rate of pollination of some melon varieties through the pollination time and the proportion of flower and to determine the difference in several yield characters. Materials and Methods: The experimental design in this research used a nested design with 3 hybridization sets of melon varieties (ME×ME, ME×MD and ME×GL). First factor was pollination time (W) divided into 3 levels, namely W1 = 6.00-7.00 am; W2 = 8.00-9.00 am; W3 = 10.00-11.00 am. Second factor was proportion of flower (P) divided into 3 levels, namely P1 = 1♀:1♂, P2= 2♀:1♂ and P3= 3♀:1♂. The implementation of P factor within W factor was considered in 2 blocks. The success rate of pollination calculation and yield characters was determined. Result: The highest percentage for the success rate of hybridization was at W3P1 and the best hybridization set through W and P treatment, for all yield characters, was at hybridization set of ME×GL varieties. The yield characters included fruit diameter, fruit length, flesh thickness and total soluble sugar . Conclusion: There was a significant difference on the success rate of hybridization in all hybridization sets (ME×ME, ME×MD and ME× GL). Based on the nested design, the highest percentage for the success rate of pollination in all hybridization sets was at W3P1 (100%), while the lowest percentage was at W1P3 (55.56%).