Effect of Plant Spacing and Plant Density on Yield and Yield Components of Two White Bean (Phaseolus vulgaris L.) Promising Lines in Presence and Absence of Weeds

پژوهشهای زراعی ایران

Article 5, Volume 8, Issue 1 - Serial Number 15, March and April 2010, Pages 34-41   

Document Type: Research Article

DOI: 10.22067/gsc.v8i1.7388

Authors

A.R. Jafari^* ; M.R. Ardakani; H Dorri; A.A Ghanbari; M.N Elkaee

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Abstract

Abstract
Crop genotype with high potential in weed competition is one of the main factors affecting competition against weeds . This experiment was conducted in a split– factorial plot design with four replications in base based on randomize complete block design in National Research Institute of Bean (Khomein) in 2004. The main plot comprised of with and without weed control and sub plot comprised of the plant densities (30, 40 and 50 plant /m2 or 60, 50 and 40 cm row spacing, respectively) and two lines of the white bean (KS41105 and KS41124). The evaluated characteristics were: plant height, branches number, pod number/plant, seed number/pod, seed number/plant, 100seed weight and grain yield. Results of the this experiment showed that decrease of row spacing caused increasing of the grain yield in both weed free and weed infest conditions. The maximum grain yield in KS41105 line with and without weed control obtained in 40 and 50 cm row spacing, respectively. In KS41124 line, maximum grain yield with and without weed control obtained in 50 and 40 cm row spacing, respectively. In two lines weed infested condition caused decreasing of the pod number/plant, seed number/plant and 100seed weight, but there were not any effect on seed number/pod.

Keywords: White bean, Weeds, Row spacing, Yield components