here - First Legume Society Conference (LSC1)

Book of Abstracts First Legume Society Conference 2013: A Legume Odyssey Novi Sad, Serbia, 9-11 May 2013
_________________________________________________________________________________________
Relations among leaf and stomatal characteristics and drought tolerance indices in
cowpea under rainfed and irrigated conditions
Erkut Peksen 1 , Aysun Peksen 2 , Ali Gulumser 1
1 Ondokuz Mayis University, Faculty of Agriculture, Department of Field Crop, Samsun, Turkey
2 Ondokuz Mayis University, Faculty of Agriculture, Department of Horticulture, Samsun, Turkey
In this study, leaf characteristics, stomata size and density, mean productivity, geometric mean
productivity, stress susceptibility index, stress tolerance index, tolerance, yield index and yield
stability index were determined in cowpea (Vigna unguiculata (L.) Walp.) cvs. Karagoz-86 and
Akkiz-86 under rainfed (non-watered) and irrigated (well-watered) conditions. Field trials were
carried out at the experiment field of Faculty of Agriculture, Ondokuz Mayis University of
Samsun (41.3°N longitude, 36.3°E altitude, 150 m above sea level), Turkey, in 2005 and 2006
years. Leaf fresh and dry weight, number of leaves, leaf and leaflet length and width, the number
of stomata, stomata length and width were determined. Measurements were made on randomly
selected 20 stomata by preparing slides from the clear nail polish impression on both lower and
upper epidermis of the leaflets using a scaled eyepiece of microscope. Stomata were counted and
measured using a 10x20 magnification. Drought indices were estimated for each genotype based
on seed yield under stress and non-stress environment. Correlations among leaf characteristics,
stomata size and density, and drought tolerance indices under rainfed and irrigated conditions
were determined.
212