Effect of gibberellic acid application on fruit setting and fruit quality of Japanese persimmon [Diospyros kaki] cv. Shinsyuu in force culture
2005
Sugimura, T.(Nara-ken. Agricultural Experiment Station, Kashihara (Japan)) | Wakisaka, M. | Imagawa, J.
We investigated the effect of gibberellic acid (GA) application on fruit setting and fruit quality of Japanese persimmon cv. 'Shinsyuu' in force culture. GA application at 5 days after full bloom stage or at the end stage of blooming were less effective for fruit setting than hand pollination, but we were able to obtain a number of set fruit for the optimum number of leaves per fruit. Fruits with applied GA displayed reduced stained skin and cracking at the fruit apex or calyx, compared with hand pollinated fruits. Consequently, GA application of 50 ppm at the stage soon after blooming produced high-quality 'Shinsyuu' fruit in force culture.
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