ISHS Acta Horticulturae 449: II International Symposium on Irrigation of Horticultural Crops
DURATION OF WATER STRESS AND ITS INFLUENCE ON THE GROWTH OF NURSERY APPLE TREES PLANTED IN CONTAINERS UNDER PLASTIC TUNNEL CONDITIONS |
| Authors: | W. Treder, P. Konopacki, A. Mika |
| Keywords: | Apple, water stress, stomatal resistance |
| Abstract:
Correct growth of nursery plants depends on many agricultural agents. One of most important factors is availability of water to the plants. Reduction of a production cycle is the major benefit of nursery production in undercover conditions. However, small containers' volume in comparison with size of the plants carries danger of drying up of a substrate. In this kind of cultivation water stress is a basic agent, which restrict growth of the plants. Even momentary water stress reduces the growth of the plants observed in longer period. Stomata resistance measurements of apple trees (cv. Lobo) showed long duration of water stress symptoms. Even few days after rewatering the stomata resistance of stressed trees was still higher than SR of permanently irrigated trees. Long period of high stomata resistance after rewatering of stressed plants suggests long duration of negative effects of severe water stress. | |
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