Growth, relative water content, transpiration and photosynthetic pigment content in coffee trees coffea arabica l. growing at different sunlight regimes Report as inadecuate




Growth, relative water content, transpiration and photosynthetic pigment content in coffee trees coffea arabica l. growing at different sunlight regimes - Download this document for free, or read online. Document in PDF available to download.

R. Valdés ; J. Verdecia ; L. Arias ; R. Medina ; E. Velasco ;Cultivos Tropicales 2001, 22 4

Author: L. Rodríguez

Source: http://www.redalyc.org/


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Cultivos Tropicales ISSN: 0258-5936 revista@inca.edu.cu Instituto Nacional de Ciencias Agrícolas Cuba Rodríguez, L.; Valdés, R.; Verdecia, J.; Arias, L.; Medina, R.; Velasco, E. GROWTH, RELATIVE WATER CONTENT, TRANSPIRATION AND PHOTOSYNTHETIC PIGMENT CONTENT IN COFFEE TREES (Coffea arabica L.) GROWING AT DIFFERENT SUNLIGHT REGIMES Cultivos Tropicales, vol.
22, núm.
4, 2001, pp.
37-41 Instituto Nacional de Ciencias Agrícolas La Habana, Cuba Available in: http:--www.redalyc.org-articulo.oa?id=193230162006 How to cite Complete issue More information about this article Journals homepage in redalyc.org Scientific Information System Network of Scientific Journals from Latin America, the Caribbean, Spain and Portugal Non-profit academic project, developed under the open access initiative Cultivos Tropicales, 2001, vol.
22, no.
4, p.
37-41 GROWTH, RELATIVE WATER CONTENT, TRANSPIRATION AND PHOTOSYNTHETIC PIGMENT CONTENT IN COFFEE TREES (Coffea arabica L.) GROWING AT DIFFERENT SUNLIGHT REGIMES L.
Rodríguez✉, R.
Valdés, J.
Verdecia, L.
Arias, R.
Medina and E.
Velasco ABSTRACT.
The effect of different light regimes (100, 85 and 70 % solar exposition) on coffee plants (Coffea arabica L.
var. Caturra) was studied.
There was an overall effect of solar exposition levels on growth at different crop growth stages, plant height and stem diameter being the most affected variables with higher values in 85 % solar exposition.
Relative water content showed daily variations with minimum values at midday for higher exposition level treatments.
Transpiration was slightly higher in 100 % level at 11:00 h, and an increased chlorophyll a and b content was observed in 85 % solar exposition, while carotene content was similar in the three levels.
The total chlorophyll a b showed a highest value in the 85 % level of solar exposition.
Results indicated some adaptability features of coffee plants to slight shade conditions, because of the constancy observed for chlorophyll a-b ratio...





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