Allometric relationship between leaf area and vegetative characteristics in field- grown Vicia faba

The objective of this study was to obtain relationships between plant leaf area (cm2plant-1) with main stem leaf number, leaf dry weight (g plant-1), stem dry weight (g plant-1), vegetative dry weight (g plant-1) and plant height (cm) in vicia faba. An experimental design was conducted in the field at Agricultural Science Research Farm of the Gonbad University in 2011-2012. Experimental design was a factorial arrangement of treatments based on randomized complete block design with four replications. The treatments were combinations of two sowing dates and four plant densities. Sowing dates were 28 November 2011 and 15 December 2011. Plant densities were 8, 12, 16 and 20 plants m-2. Sample the beginning of pod formation stage, when it stops producing leaves work was done. At each sampling leaf area, main stem leaf number, leaf dry weight, vegetative dry weight and plant heights were measured. A power equation (y= axb ) was used to describe the relationship between leaf area and the mentioned characteristics. The results showed because of not significant between treatments can use from one power equation with R2≥0.98 for description of relationship among leaf area with other trait.