Articles
INFLUENCE OF DROUGHT STRESS, DIF, AND GROWTH RETARDANT ON YIELD AND QUALITY OF DENDRANTHEMA X GRANDIFLORUM
Article number
378_18
Pages
139 – 148
Language
Abstract
Vegetative growth is promoted by increasing amounts of water.
Differences in plant height can not only be obtained by adjusting the amounts of water either continuously or discontinuously during the whole cultivation period, but also at the different stages of growth.
Therefore, drought stress instead of growth retardants can mainly be applied, while the plant is growing very fast.
Differences in plant height can not only be obtained by adjusting the amounts of water either continuously or discontinuously during the whole cultivation period, but also at the different stages of growth.
Therefore, drought stress instead of growth retardants can mainly be applied, while the plant is growing very fast.
Furthermore, the influence of combinations of drought stress, DIF, and Daminozide as a growth retardant was tested, because drought stress on its own could not reduce the height of the plants and increase their quality at the same time sufficiently.
Interactions between stress, DIF, and retardant and their influences on plant height, total leaf area, fresh weight, and total number of inflorescences were observed.
Drought stress and DIF seem to be able to replace the application of a growth retardant.
Obviously, the methods of water supply of each individual plant must be improved, if drought stress is to be used to regulate growth.
Authors
R. Roeber, D. Kolb, G. Ohmayer
Keywords
Chrysanthemum, Dendranthema x grandiflorum, Daminozide, Growth, Water, Temperature
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