Diurnal pattern of water potential in woody plants.
نویسنده
چکیده
The dynamic relationship between the rates of water loss and uptake controls plant water status. Marked diurnal variations in water potential of both leaves and fruit occurred in all plants studied. Variations in water status during the day were most clearly related to changes in evaporative demand of the air and were different for the east and west sides of a tree. At night, the plant water potential reflected the soil moisture status.Changes in the water potential of pear fruit were correlated with changes in fruit diameter. Since water loss from fruit occurred mostly through the pedicel into the xylem of the tree, the fruit could be used as a crude gauge of xylem water potential, which also showed dramatic changes during the day.
منابع مشابه
Changes in stem diameter of herbaceous and woody plants as a measure of internal water balance
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ورودعنوان ژورنال:
- Plant physiology
دوره 43 12 شماره
صفحات -
تاریخ انتشار 1968