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| Titel: |
The Influence of Short-term Partial Shading on Photosynthesis and Stomatal Conductance in Relations to Water Status of Grapevines (Vitis vinifera L.) |
| Auteur: |
Ghulam Nabi Micheal Trought David Whitehead |
| Verschenen in: |
Pakistan journal of biological sciences |
| Paginering: | Jaargang 2 (1999) nr. 4 pagina's 1394-1397 |
| Jaar: |
1999 |
| Inhoud: |
This project was designed to investigate the impact of short term light intensity changes in relation to water status of grapevine (Vitis vinifera L.) cv. Pinot noir canopy. Shading caused a rapid increase in the net photosynthesis (A) and stomatal conductance (gs) of the illuminated part of the canopy. Water-stress reduced A and gs compared to well-watered vines. Intercellular CO2 concentration (Ci) was unaffected by shading or crop loading. The overall response by vines to partial shading was similar across all water stress treatments. It is concluded that in grapevines, the rapid changes in A and gs in the illuminated part of the canopy caused by partial shading elsewhere, are regulated by hydraulic processes. However, the mechanisms by which stomata sense those changes are still unknown. |
| Uitgever: |
Asian Network for Scientific Information (provided by DOAJ) |
| Bronbestand: |
Elektronische Wetenschappelijke Tijdschriften |
Details van artikel 126 van 138 gevonden artikelen
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