The control of biennial bearing of Laxton’s Superb apple trees

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Abstract
Summary Laxton’s Superb spindle-bush trees which had the blossom removed from alternate halves of the crown each year, were compared during a six-year period with trees partially deblossomed over the whole crown and with biennial trees allowed to retain all their blossom. The half-tree method gave the best control of biennial bearing, the highest yield and the best distribution of fruit size. The method proved simple to maintain, requiring much less labour than blossom reduction over the whole tree because the half allowed to crop in one year produced little blossom in the next. The method could be adapted to chemical deblossoming and is considered practicable as a commercial system capable of giving heavy regular crops with good fruit size. Reducing the fruitlet clusters to singles increased fruit size but had little eifect on biennial bearing.

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