The internal water status of the tea plant (Camellia sinensis): Some results illustrating the use of the pressure chamber technique
✍ Scribed by M.K.V. Carr
- Publisher
- Elsevier Science
- Year
- 1971
- Weight
- 902 KB
- Volume
- 9
- Category
- Article
- ISSN
- 0002-1571
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✦ Synopsis
CARR, M. K. V., 1971. The internal water status of the tea plant (Camellia sinensis)" some results illustrating the use of the pressure chamber technique. Agric. MeteoroL, 9: 447--460.
There is a diurnal change in the sap tension of shoots taken from both irrigated and unirrigated tea plants. Early in the morning the sap tension is low; it increases until about 10h00 L.M.T. and then remains almost constant, decreasing from about 16h00. Stomatal closure appem~s to limit the increase in sap tension during the middle of the day, even when the tea is growing in wet soil. The stomata of two genetically distinct populations of tea differ in their sensitivity to increasing sap tension. Sap tension measurements confirm that sheltered tea can deplete soil water faster than tea more exposed to the wind.