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Red and far-red light influence carbon partitioning, growth and flowering of bahia grass (Paspalum notatum)

Published online by Cambridge University Press:  27 March 2009

F. J. Marousky  and
F. Blondon
F. J. Marousky
Affiliation:
Department of Environmental Horticulture, University of Florida, Gainesville, FL 32611, USA
F. Blondon
Affiliation:
Institut des Sciences Végétales, Centre National de la Recherche Scientifique, 91198 Gif-sur-Yvette Cedex, France
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Summary

Bahia grass (Paspalum notatum Flugge) plants were grown in growth chambers at Gif, France, and at Gainesville in Florida, demonstrating that the species is a long-day plant and greatly influenced by light quality during the photosynthetic period. Flowering occurred in all instances when the middle of the dark period was interrupted with red or red + far-red light. With nightly interruptions of farred light, flowering occurred only when a sufficient quantity of far-red was present during the photosynthetic period. Plants grown under short days with nightly interruptions of red, far-red or red + far-red light had less starch accumulation and greater leaf growth and dry weight than plants grown without nightly light interruptions, whatever the light quality during the photosynthetic period. The treatments did not affect the partitioning of assimilates and flowering in the same way.

Type
Crops and Soils
Information
The Journal of Agricultural Science , Volume 125 , Issue 3 , December 1995 , pp. 355 - 359
Copyright
Copyright © Cambridge University Press 1995

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