ISHS Acta Horticulturae 139: Fruit Set and Development, XXI IHC
POLLINATION, FERTILIZATION AND FRUIT SETTING OF SOME SOUR CHERRY VARIETIES |
| Authors: | W. Lech, K. Tylus |
| Abstract:
The investigation was carried out with three sour cherry varieties: Schattenmorelle, Fanal, and Köröser. Sour cherry flowers are pollinated with great amount of pollen. The following regions of inhibited growth of pollen tubes were observed: on the stigma, at the basis of the style, and near the ovula. Fertilization occurred in about 40% of flowers only. The reason of inadequate fertilization is the atrophy of a part of ovulae already at the beginning of blossoming time. It was found that a correlation occurred between the fertilization and fruit setting. The first fruit drop is connected with disturbances in the morphogenetic process /atrophy of ovulae/. The second fruit drop results from the absence of fertilization, and the third one is conditioned by physiological processes. | |
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