2003 Volume 2 Issue 3 Pages 179-182
Effects of disbudding and artificial pollination on fruit set were determined to establish bearing stabilization of Japanese persimmon cv.Tonewase and cv.Shinsyu grown in a raised bed under which a polyvinyl sheet was laid to limit root elongation under film.
In cv.Tonewase, budding was more effective for the elevation of fruit set and artificial pollination also had an effect on that to some extent.
In cv.Shinsyu, fruit set required pollination. Percentages of fruit set and seed numbers per fruit were decreased with dilution of pure pollen. After 10-fold dilution of pollen, the percentage of fruit set by artificial pollination of cv.Zenjimaru pollen was higher than those of cv.Nishimurawase pollen and cv.Saefuji pollen. Pollen yield of cv.Zenjimaru was the highest among the three cultivars. Percentage of fruit set was increased by artificial pollination after disbudding.
