Vol. 50 No: 1

Title:
Induction of Parthenocarpic Apples of Bramley's Seedling by Low Concentrations of Gibberellins

Author:
IRENA MODLIBOWSKA

pp: 21-22

Abstract:
Yields of Bramley's Seedling apples vary greatly from year to year, largely due to the effects of frosts (Jackson and Landsberg 1972). Although severe frost may kill the whole flower, the styles, placenta and ovules are the most sensitive parts (Field 1939) and often they alone are killed. This prevents fruit development because of the lack of seed-produced hormones. Induction of parthenocarpic fruits by hormone application could be of great value in these cases as well as when there is a failure of pollination due to adverse weather conditions.

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