Effects of planting date and density on yield, yield components and protein content of three chickpea (Cicer arietinum L.) cultivars under rainfed conditions in Ilam province

Document Type : Original Articles

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Abstract

In order to study the effects of planting date and plant density on yield and its components in three chickpea (Cicer arietinum L.) cultivars in rainfed conditions of Ilam, a field experiment was carried out using split plot design as factorial by complete randomized block design with three replications at Shirvan-Chardavol Agriculture Research Station during 2008-2009. Sowing dates were assigned to main plots at two seasons planting (autumn and spring), plant density (20 and 40 plants/m2) and three cultivars (Arman, Hashem and Azad) were arranged as randomized in sub-plots. Results indicated that grain yield and yield components were affected by planting date and autumn planting produced the highest grain yield (1578 kg/ha). Number of pods per plant, grain yield, 100-grain weight and harvest index were affected by planting density. The highest grain yield obtained from plant density of 20 plants/m2. In this experiment, all traits were affected by cultivars and Azad cultivar showed the highest grain yield and its components. Interaction effects of planting date × plant density × cultivars had a significant effect on grain yield. The highest grain yield (1940kg/ha) obtained from Azad cultivar in autumn sowing date at the rate of 20 plant/m2. Using soil and environmental factors in autumn planting of Azad cultivar resulted in produce of maximum yield and yield components. Complementary researches were recommended for achieving applied results.

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