Journal of Food, Agriculture and Environment

Vol 7, Issue 3&4,2009
Online ISSN: 1459-0263
Print ISSN: 1459-0255

Effects of water limitation on growth and grain filling of faba bean cultivars


K. Ghassemi-Golezani *, S. Ghanehpoor, A. Dabbagh Mohammadi-Nasab

Recieved Date: 2009-07-08, Accepted Date: 2009-10-14


In order to investigate the effects of different irrigation regimes on growth and grain yield of three faba bean cultivars, a split-plot experiment (using RCB design) with three replications was conducted in 2007 at the Research Farm of the Faculty of Agriculture, University of Tabriz, Iran. Irrigation regimes (I1, I2 and I3: irrigation after 70, 100 and 130 mm evaporation from Class A pan, respectively) and faba bean cultivars (Aquodolce, Barakat and Saraziri) were allocated to main and sub plots, respectively. The results of plant growth analysis on the basis of growing degree-days (GDD) revealed that dry matter accumulation (DMA), crop growth rate (CGR) and relative growth rate (RGR) were reduced due to water deficit. Water limitation also reduced grains per plant, grain filling duration and grain weight. Consequently, grain yield per unit area under limited irrigation was considerably lower than that under well-watering. ‘Barakat’ had the highest DMA, CGR, grain filling duration and grain yield per unit area. Barakat was a superior cultivar under both well and limited irrigation conditions, compared with Aquodolce and Saraziri. This superiority was attributed to the production of larger and more grains per plant under all irrigation treatments. It was concluded that faba bean is a sensitive crop to water deficit and therefore sufficient water supply during vegetative and reproductive stages is required to ensure a satisfactory yield achievement.


Faba bean, grain filling, grain yield, growth, water limitation

Journal: Journal of Food, Agriculture and Environment
Year: 2009
Volume: 7
Issue: 3&4
Category: Agriculture
Pages: 442-447

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