Evaluation of Some Bean (Phaseolus vulgaris L.) Genotypes Yield and Yield Components and Competitive Index with Weeds
Subject Areas :Maryam Motagi Shahpar 1 , Mehrshad Barari 2 , Eskandar Zand 3 , Seyed Mohsen Seyedi 4 , Afshar Azadbakht 5
1 - M.Sc. of Agronomy, Department of Agronomy and Plant Breeding, Faculty of Agriculture, Ilam University, Iran
2 - Assistance Professor, Department of Agronomy and Plant Breeding, Faculty of Agriculture, Ilam University, Iran
3 - Professor, Iranian Research Institute of Plant Protection, Agricultural Research, Education and Extension Organization (AREEO), Tehran, Iran.
4 - Ph.D Crop Ecology, Faculty of Agriculture, Bu-Ali Sina University, Hamedan, Iran and The member of Young Researcher's and Elite Club, Hamedan Branch, Islamic Azad University, Hamedan, IRAN
5 - Ph.D Graduated of Weed Science, University of Mohaghegh Ardabili, Ardabil, Iran
Keywords: yield, weed, Bean, Agronomy, Competitive index,
Abstract :
In order to study the competitiveness of bean genotypes with weeds, a field experiment was carried out at Agricultural research station of the faculty of agriculture, Ilam University, Ilam during 2010 growing season. The experimental design was a split plot based on RCBD with four replications. Treatments consisted of two weed levels (with and without weeds) assigned in main plot and eight bean genotypes (Goli, Sayad, Akhtar, Derakhshan, Khomein, KS21193, KS21191 and G14088) placed in sub-plot. The results of analysis of variance showed that both factors weed presence and genotypes had a significant effect on number of pod per plant, number of seed per pod, seed 100 weight, grain yield and biological yield. However, the interaction of two factors were not significant for grain yield, biological yield, and seed 100 weight. Maximum grain yield (309.09 and 354.77 g/m2, respectively) achieved in non-weed treatment and KS21191genotype. The results also indicated that Khomein genotype had highest competitive index (1.42) and Akhtar had the lowest (0.71). Based on the results indeterminate and runner genotypes showed higher competitive ability compared to determinate and erect genotypes.
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