Effect of straw mulch application on agronomic traits and grain yield of common bean (Phaseolus vulgaris L.) cultivars under drought stress
Journal Title: Journal of Biodiversity and Environmental Sciences (JBES) - Year 2013, Vol 3, Issue 9
Abstract
In order to investigate the agronomic traits and grain yield of common bean (Phaseolus vulgaris L.) cultivars under irrigation and straw mulch treatments, an experiment was conducted as factorial based on randomized complete block design with three replications at the research farm of the Faculty of agriculture, University of Tabriz, Iran in 2012. Treatments were two irrigation levels (60 and 120 mm evaporation from class A pan), two cultivars with different growth habits (akhtar and naz as determinate and indeterminate respectively) and two mulch levels (0 and 2 ton/ha of wheat straw). Results showed that effect of irrigation levels, straw mulch and cultivars were significant on plant height, number of leaf per plant, relative water content (RWC) and grain yield of common been. Normal irrigation and application of straw mulch produced the highest measured traits. Also in normal irrigation, leaf area index (LAI) and chlorophyll contents were significantly increased. Akhtar cultivar had higher LAI than that of Naz. Straw mulch in both irrigation treatments improved agronomic traits and grain yield of common bean cultivars.
Authors and Affiliations
Saeed Abbasi, Adel Dabbagh Mohammadinasab, Mohammad-Reza Shakiba, Rouhollah Amini
Keywords
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