被覆条件下のベッド栽培におけるカキ'刀根早生'と'新秋'の結実に及ぼす摘蕾および人工受粉の影響(栽培管理・作型)  [in Japanese] Effects of Disbudding and Artificial Pollination on Fruit Set of Japanese Persimmon (Diospyros kaki Thunb.) cv. Tonewase and cv. Shinsyu Grown in Raised Bed under Film (Crop Production & Cropping Type)  [in Japanese]

被覆条件下のベッド栽培における'刀根早生'と'新秋'の安定生産を目的に,結実に及ぼす摘蕾と人工受粉の影響を検討した.'刀根早生'の結実には摘蕾処理の効果が大きく,人工受粉でも結実促進効果が認められた.'新秋'の結実には受粉が必要であり,花粉の希釈倍率が高いほど結実率と種子数が低下した,'禅寺丸'花粉は10倍希釈でも比較的結実率が高かったが,'西村早生'花粉と'サエフジ'花粉ではやや低い傾向がみられた.花粉収量は'禅寺丸'が最も多かった.摘蕾と人工受粉との併用により,結実率が向上した.

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 nnllinatinn after disbudding.