Abstract
In order to study the effect of density and cultivars on growth physiological indexes affecting grain yield of faba bean, field experiment was carried out in the city of Ahwaz field healthy martyr in a factorial randomized complete block design with four replications in crop year of 2011-2012. These factors include density at three levels (8, 12, 16 plants per square meter) and three varieties (Barekat, Saraziri, local varieties dezful ), respectively. The results showed that the average density of 12 per square meter with 49.478 grams per square meter, grain yield was significantly increased compared with the average barekat76.535 grams per square meter than other cultivars had the highest grain yield. Survey results showed that treatments affected plant growth and physiological parameters were compared. LAI highest number and density of 16 plants m barekat obtained. CGR maximum density of 12 plants per square meter ofleaf area index was more in barekat digits. Maximum net assimilation rate on leaf area due to larger numbers and more barekat and density of 8 per square meter, respectively almost the same trend of relative growth rate of the trend followed.
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