Transpiration/Evaporation Ratio in Prunus Fremontii and Marianna 2624 over a 4-Day Period of Drought

Riccardo Lo Bianco and Mark Rieger
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Riccardo Lo Bianco: Department of Agricultural, Food and Forest Sciences, University of Palermo, Italy
Mark Rieger: Department of Plant and Soil Sciences, University of Delaware, USA

International Journal of Environmental Sciences & Natural Resources, 2017, vol. 7, issue 4, 96-99

Abstract: Drought stress represents one of the major environmental limitations to crop production in a large portion of the Earth’s surface. Natural genetic resources are one of the most powerful weapons against environmental stress. In such contest, the behaviour in terms of water loss of two species, P. fremontii (slower growing) and Marianna 2624 (faster growing), native to arid and humid regions respectively, was tested. Transpiration (T) and evapo transpiration (ET) rates and soil water content (SWC) were measured in the two species under controlled conditions. Evaporation rate from the soil surface was obtained by difference, and an average transpiration/evaporation ratio (T/E) was calculated to determine the relative importance of the two processes. Soil water content decreased linearly in both species over the 4-day period, however only Marianna 2624 ET decreased along with SWC. On the contrary, T and ET of both species correlated positively with temperature, indicating a more direct response at the leaf level.

Keywords: earth and environment journals; environment journals; open access environment journals; peer reviewed environmental journals; open access; juniper publishers; ournal of Environmental Sciences; juniper publishers journals; juniper publishers reivew (search for similar items in EconPapers)
Date: 2017
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Persistent link: https://EconPapers.repec.org/RePEc:adp:ijesnr:v:7:y:2017:i:4:p:96-99

DOI: 10.19080/IJESNR.2017.07.555717

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