Effects of Flower Thinning, Timing of Shoot Pinching and Girdling on Berry Enlargement and Quality of ‘Fujiminori’ Grapes

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  • 花穂整形方法を異にするブドウ‘藤稔’の摘心と環状剥皮が果粒肥大，品質に及ぼす影響
  • カスイ セイケイ ホウホウ オ イ ニ スル ブドウ'フジ ミノル'ノ テキシン ト カンジョウハクヒ ガ カリュウ ヒダイ,ヒンシツ ニ オヨボス エイキョウ
  • Effects of Flower Thinning, Timing of Shoot Pinching and Girdling on Berry Enlargement and Quality of ‘Fujiminori’ Grapes

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Abstract

The effects of early shoot pinching and girdling on secondary scaffold branches at 13 or 31 days after full bloom on the berry enlargement and the quality of ‘Fujiminori’ grape clusters which flowers tinned from different positions. The girdling treatment at 13 DAFB promoted the berry elongation of clusters which flowers thinned from either positions, thus increased the cluster weight. Moreover, the girdling treatment at 31 DAFB increased the sugar content. Conversely, no effects of the timing of the shoot pinching treatments on the berry enlargement. These results indicated that the girdling treatments at around two weeks after full bloom enlarged berries in either clusters which flowers tinned from different positions and so may lead to the consistent production of large-sized berries in ‘Fujiminori’ grape.

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