Effects of liquid artificial pollination on the fruit set and fruit quality of kiwifruit vines
2006
Fujishima, H.(Fukuoka-ken. Agricultural Research Center, Chikushino (Japan)) | Matsuda, K. | Yahata, D.
We investigated the effects of artificial pollination using a liquid pollen extender on the fruit set percentage and fruit quality of the kiwifruit vine 'Hayward'. The fruit set resulting from artificial pollination using a sucrose solution (with the addition of 0.1% of agar) was confirmed to be equal with artificial pollination executed using a conventional Pollenaid solution in the range of 125-1000 times the concentration for pollen with the solution. With regard to the fruit characteristics, the weight tended to be lighter and Brix readings tended to give lower readings in the fruit harvested from pollen diluted 1000 times which meant less pollen. For kiwifruit harvested by way of other pollen dilution ratios with a sucrose solution and Pollenaid solution, no significant differences were observed among them. The above experiments suggest the possible use of a sucrose solution as a pollen extender for artificial pollination. To obtain fruit weighing more than 100g, the number of seeds per fruit is required to be about 820;and we concluded that the proper dilution ratios of pollen with a sucrose solution in artificial pollination to be in the range of 250-500 times per pollen unit. Also, it was confirmed that the fruit set and quality of fruit resulting from artificial pollination, using a liquid sugar solution in place of a sucrose solution resulted in harvesting a fruit set and fruit quality equivalent to that grown artificially pollinated with a Pollenaid solution. Use of a liquid sugar solution promises a cost reduction of about 200 yens/L.
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