PJB-2018-811
Influence of light intensity and some chemical compounds on physiological responses in olive transplants (Olea europaea L.)
Haliz Arif Abdulrahman and Sarfaraz Fatah Al-Bamarny
Abstract
Leaf physiological responses, chlorophyll content and stomata density of two cultivars Xestawi and Suranni (Olea europaea L.) transplants grown under two levels of light intensity (100% and 50%) of full light and different concentrations of calcium and boric acid (0.25% and 0.50%) and (50 and 100 mg.L-1) respectively were studied in addition to control. These studies aimed to discuss the effect of light intensity and some chemical compounds on some physiological responses of olive transplants [net photosynthesis, stomata transpiration, stomata conductance rates and water use efficiency (WUE), in addition chlorophyll a, chlorophyll b, stomata density and guard cell thickness]. The result showed that all above parameters significantly increased in 100% light intensity except in the case of water use efficiency, it decreased in 100% light intensity. While the effect of mineral compounds on all of the parameters were varied. The transplants treated with 100 mg.L-1 boric acid showed higher net photosynthesis, transpiration and stomatal conductance. Hence, higher rates of water use efficiency, stomata density, guard cell thickness and chlorophyll b were found in transplants treated with both concentrations of calcium (0.25% and 0.50%).
To Cite this article:
Abdulrahman, H.A. and S.F. Al-Bamarny. 2020. Influence of light intensity and some chemical compounds on physiological responses in olive transplants (Olea europaea L.). Pak. J. Bot., 52(2): DOI: http://dx.doi.org/10.30848/PJB2020-2(37)
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