اثر تراكم بوته و آبياري تكميلي برعملكرد، اجزا عملكرد و ميزان پروتيين چهار رقم نخود در شرايط ديم

Effect of plant density and supplemental irrigation on yield, yield components and protein content of four chickpea (Cicer arietinum) cultivars under dryland condition

In order to study the effect of plant density and supplemental irrigation on yield, yield components and protein content of four chickpea varieties in dry farming condition, an experiment was conducted in Eslam-abbad-gharb Agricultural Research Station in 2001-2002 year. The experimental design was split split plot based on RCBD with three replications. Two dry farming levels (dry farming + supplemental irrigation and dry farming without supplemental irrigation), Four varieties (Bivanij, I1c482, Flip90-96 and Flip93-93) and three plant density (26, 33 and 40 plant/m2) were randomized to the main plot, sub plot and sub-sub-plot units respectively. The results showed that supplemental irrigation decreased grain protein percent (%1.59) but increased branch number (3.15), plant pod number (8.7), 100-grain weight (4.05gr) and grain yield (828.67 kg/ha). Bivanij and 11c482 varieties had the most main stem (2.68) and branch number (7.77) respectively. Flip90-96 variety was late maturity. This variety had the most protein percent (%22.96). The most plant pod number, 100-grain weight and grain yield was observed in Flip93-93 variety. Protein percent was not significantly affected by density, but by increasing plant density decreased the main stem number, branch number and plant pod number. The most grain yield (1240 kg/ha) was obtained from 33 plant/m^2. Flip93-93 variety had the most grain yield under supplemental irrigation with 33 plant/m^2density.