Morphological characterization, plant growth, yield and pod properties of some winged beans genotypes [Psophocarpus tetragonolobus (L.) DC

The aim of this study was to grow winged bean (Psophocarpus tetragonolobus L.) in Turkey condition, morphological characterization and determination of some plant growth, yield and pod characteristics. In the study, 8 winged bean genotypes brought from Thailand (AVRDC) were used as plant material and morphologically characterized for 25 traits and also seed measurements, plant measurements, yield, pod characteristics, protein and fatty acids analysis were done. According to the research results, the seed average weight was changed between 0.24-0.34 g, the seed width was 7.66-9.23 mm, the seed length was 7.08-8.16 mm and the seed thickness was 6.01-7.05 mm in the 8 genotypes. Seed emergency rates were 58.50-86.00 % and emergency times were between 18.58-31.91 days. The best plant growth was observed at 4WBE-001 in the measurements made in 3 different dates in the plant. The weakest developed genotype was in the genotype PT-016. Yields were obtained from only 4 genotypes that flowered under Adana conditions and yield ranged from 0.19 to 0.40 kg/plot. Generally, the genotype 4WBE-001 gave the highest results in pod measurements. The highest protein content was detected in 4WBE-001 (49.66 %) and the lowest in Poung-Chawa (23.47 %). It has been noted that the most abundant fatty acids were palmitic acid, stearic acid, oleic acid, linoleic acid, linolenic acid and behenic acids in the winged bean pods and seeds. In the morphological characterization, the Purple Winged Bean genotype was found to be the most distant from the others. PT-003 and PT-029 genotypes were 83.57% similar to each other.