Citation
Mohd Razi I., . and Burrage S.W., . Growth and physiological changes of NFT-grown tomatoes (Lycopersicon esculentum) as influenced by salinity vapour pressure deficit (VPD) and root temperature. pp. 119-124. ISSN 0126-6128
Abstract
The effects of salinity vapour pressure deficit (VPD) and root temperature were investigated on the growth and physiological processes of NFT-grown tomatoes (Lycopersicon esculentum Mill cv Counter). The plants were exposed to two levels of salinity (2.5 mS/cm; 8.5 mS/cm) VPD (0.16 kPa; 0.80 kPa) and root temperature (12 degrees C; 22 degrees C). Leaf and root growth were reduced when plants were grown at high salinity low VPD and low root temperature. The reduction in leaf growth at high salinity and low root temperature was attributed to the water stress effect indicated by a reduction in leaf water potential and plant water uptake. The reduction in transpiration rate which limits the transfer of nutrients in the plants contributes to the reduction in leaf growth at low VPD. Stomatal conductance was reduced when plants were grown at high salinity high VPD and low root temperature. This reduction at low VPD and low root temperature however did not effect the leaf photosynthesis rate per unit leaf area.
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Abstract
The effects of salinity vapour pressure deficit (VPD) and root temperature were investigated on the growth and physiological processes of NFT-grown tomatoes (Lycopersicon esculentum Mill cv Counter). The plants were exposed to two levels of salinity (2.5 mS/cm; 8.5 mS/cm) VPD (0.16 kPa; 0.80 kPa) and root temperature (12 degrees C; 22 degrees C). Leaf and root growth were reduced when plants were grown at high salinity low VPD and low root temperature. The reduction in leaf growth at high salinity and low root temperature was attributed to the water stress effect indicated by a reduction in leaf water potential and plant water uptake. The reduction in transpiration rate which limits the transfer of nutrients in the plants contributes to the reduction in leaf growth at low VPD. Stomatal conductance was reduced when plants were grown at high salinity high VPD and low root temperature. This reduction at low VPD and low root temperature however did not effect the leaf photosynthesis rate per unit leaf area.
Additional Metadata
| Item Type: | Article |
|---|---|
| Additional Information: | 3 tables; 27 ref. Summaries (En Ms) |
| AGROVOC Term: | LYCOPERSICON ESCULENTUM |
| AGROVOC Term: | TECNICAS DE CINTA NUTRITIVA |
| AGROVOC Term: | TENSION DE VAPOR |
| AGROVOC Term: | RELACIONES PLANTA AGUA/ SALINIDAD |
| AGROVOC Term: | RIZOSFERA |
| AGROVOC Term: | CRECIMIENTO |
| Depositing User: | Ms. Norfaezah Khomsan |
| Last Modified: | 24 Apr 2025 05:56 |
| URI: | http://webagris.upm.edu.my/id/eprint/20399 |
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