Direct and Indirect Effects of Wind on Maize Seedlings

Kin , A.G. (1996) Direct and Indirect Effects of Wind on Maize Seedlings. PhD thesis, Universite Catholique de Louvain.

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We focused on study of the effects and aftereffects of wind on plant physiology and performance of young maize seedlings, First we tested the direct action of wind and second we tested the effects of treatments reproducing some of the sequels of exposure to wind. These indirect effects were studied separately without applying wind as such to have an insight of on the possible compouents of wind action on leaf surface characteristics and growth, Part of the effects and aftereffects of exposure to wind applied during short periods (hours) were a reduced leaf elongation. An increased susceptibility of seedlings to wind damage occurred around leaf stage 2. There were little or no aftereffects of wind on stomata1 conductance and gas exchange. When wind was associated with another environmental stress as aluminium toxicity it increased the negative effects of aluminium instead of alleviating them. Maize seedlings growing under water stress were slightly more resistant to wind effects, Projected sand particles or coating leaves of maize seedlings with soil pareicles led to a reduction in growth. Also, soil removal around the plant base, as well as partial or total plant burial of young maize seedlings hati negative aftereffects on elongation of leaves and long lasting aftereffects on final fresh and dry weights at physiological maturity. Seedlings exposed to sandblasting at leaf stage 2 appeared more sensitive than when damage occurred earlier (leaf stage 1) or later (at leaf stage 4), as found on plants exposed to wind. However, seedlings completely buried or dusted at leaf stage 1 appeared more sensitive than when treatments occurred later......

Item Type: Thesis (PhD)
Additional Information: I am particularly indebted to Dr.J.F. Ledent, who was very patient in supervising these studies. Without his contagious enthusiasm and optimism even in the worst situations this work would not had been completed.
Author Affiliation: Universite Catholique de Louvain
Subjects: Crop Improvement
Divisions: Maize
Depositing User: Mr Arbind Seth
Date Deposited: 28 Jul 2013 10:39
Last Modified: 28 Jul 2013 10:39

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