STOMATA AND THE HYDROLOGIC CYCLE
- 1 April 1967
- journal article
- research article
- Published by Proceedings of the National Academy of Sciences in Proceedings of the National Academy of Sciences
- Vol. 57 (4) , 1096-1102
- https://doi.org/10.1073/pnas.57.4.1096
Abstract
Shrinking stomata in the needles of 16 m pine trees by a single spray of 300 ppm phenylmercuric acetate on June 2 decreased the contraction of the tree boles that is caused by dehydration during rapid transpiration. It did not stunt the needles but did decrease growth of the bole 15%. The decrease in evaporation caused by stomatal shrinking was sufficient to cause a 20 to 28 mm smaller depletion of soil moisture between June and Oct. Since this significant change was but 5% change in evaporation and since stomata were affected only part of the season, these microscopic pores may provide a strategic means for changes of great scope in the hydrologic cycle.This publication has 3 references indexed in Scilit:
- ENVIRONMENTAL AND BIOCHEMICAL CONTROL OF STOMATAL MOVEMENT IN LEAVESBiological Reviews, 1965
- EFFECT OF CHEMICAL CONTROL OF STOMATA ON TRANSPIRATION OF INTACT PLANTSProceedings of the National Academy of Sciences, 1962
- BIOCHEMICAL CONTROL OF STOMATAL OPENING IN LEAVESProceedings of the National Academy of Sciences, 1961