Growth, plant water relation and photosynthesis rate of young Theobroma cacao as influenced by water stress
The effects of duration of water stress on the growth and physiological changes of young Theobroma cacao plants were investigated. Water was withheld for 4, 8, and 12 days before watering for a period of 20 weeks. Leaf area, leaf area index, leaf, root and stern dry weights were significantly red...
| Main Authors: | , , , |
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| Format: | Article |
| Language: | English |
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Universiti Pertanian Malaysia
1992
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| Online Access: | http://psasir.upm.edu.my/id/eprint/2983/1/Growth%2C_Plant_Water_Relation_and_Photosynthesis_Rate_of_Young.pdf |
| _version_ | 1825921567991791616 |
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| author | Ismail, Mohd Razi Hassan, Abdul Halim Dola, Kamariah Jalil, Mohd Noh |
| author_facet | Ismail, Mohd Razi Hassan, Abdul Halim Dola, Kamariah Jalil, Mohd Noh |
| author_sort | Ismail, Mohd Razi |
| collection | UPM |
| description | The effects of duration of water stress on the growth and physiological changes of young Theobroma cacao plants
were investigated. Water was withheld for 4, 8, and 12 days before watering for a period of 20 weeks. Leaf area,
leaf area index, leaf, root and stern dry weights were significantly reduced with duration of withholding water. There was a close relationship between photosynthesis rate and changes in leaf water potential. Leaf photosynthesis rate was reduced when leaf water potential dropped below -2.0 MPa. Determinations of plant processes showed a clear
variation between three local clonal plants i.e. KKM 4, KKM 5 and KKM 25 with KKM25 recording the highest
leaf water potential, stomatal conductance and leaf photosynthesis rate. |
| first_indexed | 2024-03-06T06:59:48Z |
| format | Article |
| id | upm.eprints-2983 |
| institution | Universiti Putra Malaysia |
| language | English |
| last_indexed | 2024-03-06T06:59:48Z |
| publishDate | 1992 |
| publisher | Universiti Pertanian Malaysia |
| record_format | dspace |
| spelling | upm.eprints-29832015-03-09T04:52:10Z http://psasir.upm.edu.my/id/eprint/2983/ Growth, plant water relation and photosynthesis rate of young Theobroma cacao as influenced by water stress Ismail, Mohd Razi Hassan, Abdul Halim Dola, Kamariah Jalil, Mohd Noh The effects of duration of water stress on the growth and physiological changes of young Theobroma cacao plants were investigated. Water was withheld for 4, 8, and 12 days before watering for a period of 20 weeks. Leaf area, leaf area index, leaf, root and stern dry weights were significantly reduced with duration of withholding water. There was a close relationship between photosynthesis rate and changes in leaf water potential. Leaf photosynthesis rate was reduced when leaf water potential dropped below -2.0 MPa. Determinations of plant processes showed a clear variation between three local clonal plants i.e. KKM 4, KKM 5 and KKM 25 with KKM25 recording the highest leaf water potential, stomatal conductance and leaf photosynthesis rate. Universiti Pertanian Malaysia 1992 Article PeerReviewed application/pdf en http://psasir.upm.edu.my/id/eprint/2983/1/Growth%2C_Plant_Water_Relation_and_Photosynthesis_Rate_of_Young.pdf Ismail, Mohd Razi and Hassan, Abdul Halim and Dola, Kamariah and Jalil, Mohd Noh (1992) Growth, plant water relation and photosynthesis rate of young Theobroma cacao as influenced by water stress. Pertanika, 15 (2). pp. 93-98. ISSN 0126-6128 |
| spellingShingle | Ismail, Mohd Razi Hassan, Abdul Halim Dola, Kamariah Jalil, Mohd Noh Growth, plant water relation and photosynthesis rate of young Theobroma cacao as influenced by water stress |
| title | Growth, plant water relation and photosynthesis rate of young
Theobroma cacao as influenced by water stress |
| title_full | Growth, plant water relation and photosynthesis rate of young
Theobroma cacao as influenced by water stress |
| title_fullStr | Growth, plant water relation and photosynthesis rate of young
Theobroma cacao as influenced by water stress |
| title_full_unstemmed | Growth, plant water relation and photosynthesis rate of young
Theobroma cacao as influenced by water stress |
| title_short | Growth, plant water relation and photosynthesis rate of young
Theobroma cacao as influenced by water stress |
| title_sort | growth plant water relation and photosynthesis rate of young theobroma cacao as influenced by water stress |
| url | http://psasir.upm.edu.my/id/eprint/2983/1/Growth%2C_Plant_Water_Relation_and_Photosynthesis_Rate_of_Young.pdf |
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