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The Effects of Shading Regimes on the Growth of Cocoa Seedlings(Theobroma cacao L.)


Citation

Raja Harun, Raja Muhammad and Ismail, Kamariah (1983) The Effects of Shading Regimes on the Growth of Cocoa Seedlings(Theobroma cacao L.). Pertanika, 6 (3). pp. 1-5.

Abstract / Synopsis

An experiment was conducted to study the effects of different shading regimes: 80, 55, 30 and a percent i.e. full sunlight on the growth of cocoa seedlings during the first five months in the nursery. It was observed that the shading regime for optimal dryweight accumulation was under 80 percent shade during the first three months gradually reducing to 55 percent shade from the fourth month onwards. This interaction between age and shading regime was brought about by changes in net assimilation rates in response to self shading as the plant aged and also to the effects of lead production in response to different light intensities. Totally unshaded condition was detrimental to plant growth. Shading practice has to take into account the balance between capacity for leaf production and optimal capacity for assimilation.


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Additional Metadata

Item Type: Article
Divisions: Faculty of Agriculture
Publisher: Universiti Putra Malaysia Press
Depositing User: Nur Izzati Mohd Zaki
Date Deposited: 12 Nov 2009 08:57
Last Modified: 27 May 2013 14:59
URI: http://psasir.upm.edu.my/id/eprint/2244
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