Co-Authors:
Salomon, E., Institute of Horticulture, Agricultural Research Organization, The Volcani Center, P.O. Box 6, Bet Dagan, 50250, Israel
Reuveni, O., Institute of Horticulture, Agricultural Research Organization, The Volcani Center, P.O. Box 6, Bet Dagan, 50250, Israel
Abstract:
One-stemmed seedlings that were not grafted or grafted on their own stem (autografted) of mango (Mangifera indica L.) cultivars '13-1' and 'Peach' were grown in containers in a greenhouse. When 2 years old, the plants were pruned and paclobutrazol (PBZ) was applied to the soil at 0, 20, 60 and 240 mg active ingredient (a.i.) per plant. The cumulative length of shoots that were produced by autumn following pruning was reduced by PBZ especially in the autografted plants. Flowering occurred in spring, 32 months after germination. Autografting did not increase the rate of flowering. Without PBZ, 25% of the '13-1' plants and none of the 'Peach' plants flowered. Of the '13-1' seedlings, 95-100% flowered with PBZ treatment regardless of the rate. In 'Peach', the proportion of plants flowering was increased by PBZ as the treatment rate increased. At the highest rate, 64% of non-grafted and 31% of autografted seedlings flowered. '13-1' seedlings treated with 240 mg PBZ set seedless fruit which did not persist. © 1994.
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