VEGETATIVE GROWTH CONTROL OF APPLE AND PEAR TREES WITH ICI PP333 (PACLOBUTRAZOL) A CHEMICAL ANALOG OF BAYLETON.

M.W. Williams, L.J. Edgerton
Application of ICI pp333 (Paclobutrazol) reduced shoot growth of apple trees on seedling rootstock and M7, resp., yield per tree and fruit size were increased. Soil treatment rather than spraying appeared to be the most effective application method. PP333 shows a considerable persistance in soil. With pears, application of pp333 followed by treatments with gibberellic acid led to growth reduction and increased yield.
Williams, M.W. and Edgerton, L.J. (1983). VEGETATIVE GROWTH CONTROL OF APPLE AND PEAR TREES WITH ICI PP333 (PACLOBUTRAZOL) A CHEMICAL ANALOG OF BAYLETON.. Acta Hortic. 137, 111-116
DOI: 10.17660/ActaHortic.1983.137.11
https://doi.org/10.17660/ActaHortic.1983.137.11

Acta Horticulturae