Citation
Mohd Razi Ismail, . and Burrage S.W., . Effects of alternating vapor pressure deficit (VPD) on growth and physiological processes of tomatoes growth in nutrient film technique. pp. 35-43. ISSN 0126-8643
Abstract
An investigation into the effect of alternating vapor pressure deficit (VPD) was carried out on tomato plants (Lycopersicon esculentum Mill.) grown in Nutrient Film Technique (NFT). The plants were exposed to continuous low VPD (0.18 kPa) continuous high VPD (0.40 kPa) 2 hrs 4 hrs and 6 hrs exposure to high VPD during the day. Exposing plants pretreated with low VPD to high VPD significantly reduced leaf fresh and dry weight. Root: shoot ratio was increased with high VPD exposure. The results demonstrated that when plants were exposed from low VPD to high VPD consequent reduction in leaf water potential stomatal conductance and photosynthesis rate were observed. The changes in leaf water status to abrupt exposure to high VPD is also discussed.
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Abstract
An investigation into the effect of alternating vapor pressure deficit (VPD) was carried out on tomato plants (Lycopersicon esculentum Mill.) grown in Nutrient Film Technique (NFT). The plants were exposed to continuous low VPD (0.18 kPa) continuous high VPD (0.40 kPa) 2 hrs 4 hrs and 6 hrs exposure to high VPD during the day. Exposing plants pretreated with low VPD to high VPD significantly reduced leaf fresh and dry weight. Root: shoot ratio was increased with high VPD exposure. The results demonstrated that when plants were exposed from low VPD to high VPD consequent reduction in leaf water potential stomatal conductance and photosynthesis rate were observed. The changes in leaf water status to abrupt exposure to high VPD is also discussed.
Additional Metadata
| Item Type: | Article |
|---|---|
| Additional Information: | 3 graphs; 3 tables; 33 ref. Summary (En Ms) |
| AGROVOC Term: | LYCOPERSICON ESCULENTUM |
| AGROVOC Term: | TENSION DE VAPOR |
| AGROVOC Term: | TECNICAS DE CINTA NUTRITIVA |
| AGROVOC Term: | HOJAS/ PERDIDA DE PESO |
| AGROVOC Term: | TENSION DE ABSORCION |
| AGROVOC Term: | ESTOMA |
| AGROVOC Term: | FOTOSINTESIS |
| Depositing User: | Ms. Norfaezah Khomsan |
| Last Modified: | 24 Apr 2025 05:55 |
| URI: | http://webagris.upm.edu.my/id/eprint/19959 |
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