Citation
R. M. Raja Harun, . and Kamariah Hj. Ismail, . The effects of shading regimes on the growth of cocoa seedlings (Theobroma cacao L.). pp. 1-5. ISSN 0126-6128
Abstract
An experiment was conducted to study the effects of different shading regimes: 80 55 30 and 0 percent le. 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 dryweignt 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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Abstract
An experiment was conducted to study the effects of different shading regimes: 80 55 30 and 0 percent le. 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 dryweignt 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.
Additional Metadata
| Item Type: | Article |
|---|---|
| AGROVOC Term: | Cocoa (plant) |
| AGROVOC Term: | Theobroma cacao |
| AGROVOC Term: | Shading |
| AGROVOC Term: | Seedlings |
| AGROVOC Term: | Sunlight |
| AGROVOC Term: | Nursery plants |
| AGROVOC Term: | Weight |
| AGROVOC Term: | Hybrids |
| AGROVOC Term: | Germination |
| AGROVOC Term: | Fertilizers |
| Geographical Term: | Malaysia |
| Depositing User: | Ms. Suzila Mohamad Kasim |
| Last Modified: | 28 Apr 2025 00:40 |
| URI: | http://webagris.upm.edu.my/id/eprint/22897 |
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