Year around off season flower induction in longan (Dimocarpus longan,Lour.) trees by KClO3 applications: potentials and problems |
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| Institution: | 1. Department of Horticulture, Maejo University, Chiang Mai, Thailand;2. Department of Horticulture, Chiang Mai University, Chiang Mai, Thailand;3. Institute of Special Crops and Crop Physiology, University of Hohenheim, 70593 Stuttgart, Germany;1. Centre for the Research and Technology of Agro-Environmental and Biological Sciences − CITAB, Universidade de Trás-os-Montes e Alto Douro, UTAD, Quinta de Prados, 5000-801 Vila Real, Portugal;2. Dept. of Chemical and Biochemical Engineering (DTU Chemical Engineering), Technical University of Denmark (DTU), DK-2800 Lyngby, Denmark;1. Horticulture College, South China Agricultural University, Guangzhou 510642, Guangdong, China;2. Guangxi Academy of Agricultural Sciences, Nanning 530007, Guangxi, China;3. Agricultural College of Guangxi University, Nanning 530004, Guangxi, China |
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| Abstract: | Off season induction of flowering and fruit production is a desirable economical and scientific goal with many subtropical fruit trees. Both objectives have been accomplished by the application of gibberellin biosynthesis inhibitors with mango and a few other fruit trees. Recently the same was achieved with longan trees (Dimocarpus longan, Lour.) after treatment with potassium chlorate. This treatment allows the efficient induction of flowering and fruit production all over the year in an obviously species-specific manner.Experiments are described that investigated several aspects of this KClO3 treatments, such as methods of application, seasonal effects, reactiveness of different cvs. toward the chemical, influence of leaf age, etc. The results are discussed with respect to the practical application of KClO3 for off season fruit production, but also under the aspect of its use for more basic investigations into the endogenous regulation of the flowering induction process in perennial fruit trees. |
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