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翻訳と辞書　辞書検索 [ 開発暫定版 ] スポンサード リンク Biennial bearing ： ウィキペディア英語版 Biennial bearing Biennial bearing (or alternate) bearing is a term used in pomology to refer to trees that have an irregular crop load from year to year. In the "on" year too much fruit is set, leading to small fruit size. Excess weight in the main branches can be too much for their mechanical resistance, causing them to break. Another major consequence is that flower induction will be lower, and the subsequent year will be "off" year (too little fruit). The behavior could be due to plant hormones, particularly gibberellins produced in excess in the "on" years in the embryos of the young fruit. It could also be caused by depletion of carbohydrate reserves in the tree. Biennial bearing is more common in certain fruit crops like Mango, apple, pear, apricot and avocado, and almost nonexistent in grapes. ==Horticultural management== This disorder can be reduced by thinning of flowers and young fruit winter pruning, and . 抄文引用元・出典: フリー百科事典『 ウィキペディア（Wikipedia）』 ■ウィキペディアで「Biennial bearing」の詳細全文を読む スポンサード リンク 翻訳と辞書 : 翻訳のためのインターネットリソース Copyright(C) kotoba.ne.jp 1997-2016. All Rights Reserved.