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Modeling Hydraulic Dynamics at Different Levels of Fruit Tree Canopies under Abiotic Stress

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  • E Kullaj Author Namw: L Lepaja Author Namw: F Thomaj Author-Workplace- Department of Horticulture and Landscape Architecture, Agricultural University of Tirana, Albania Author Namw: V Avdiu Author-Workplace- Department of Fruit Trees and Viticulture, University of Pristina, Kosove

Abstract

Tree canopy microclimate, influenced mainly by radiation, air temperature and wind affects both the vegetative and reproductive behaviour with a striking influence on both quantity and quality of production. The present study uses experimental data to model the xylem flows at various levels of canopy. The study was conducted on two commercial orchards with a central leader system from 2011 to 2012. Sap flow sensors based on SHB (stem heat balance) method were installed on shoots (10 - 12 mm) of five 8-years old trees of Golden Delicious at different levels of the canopy (upper, middle, lower). Quantum sensors and infrared radiometers continuously measured PAR (photosynthetically active radiation) levels and canopy temperature at these three levels of the canopy.

Suggested Citation

  • E Kullaj Author Namw: L Lepaja Author Namw: F Thomaj Author-Workplace- Department of Horticulture and Landscape Architecture, Agricultural University of Tirana, Albania Author Namw: V Avdiu Author-Wor, 2016. "Modeling Hydraulic Dynamics at Different Levels of Fruit Tree Canopies under Abiotic Stress," Agricultural Research & Technology: Open Access Journal, Juniper Publishers Inc., vol. 2(3), pages 57-71, September.
    • Handle: RePEc:adp:artoaj:v:2:y:2016:i:3:p:57-71
    DOI: 10.19080/ARTOAJ.2015.02.555586
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