The effect of delay cultivation on dry matter accumulation and chickpea yield in dry land conditions

Abstract

Plant yield as a result of the allocation of the photosynthesis material to economic organs is that was obtained through balanced relationships between source and the tank. Exact and correct of physiological processes understanding of controlling yield and proper use of them will be caused to increase crop plants yield. In this case the experiment was done in Islamic Azad University of Kermanshah in 2011. In this study, three cultivars of chickpea such as Flip93-93, 12-60-31 and Hashem in three planting dates such as fall, expended and spring (delay) were compared with complete random blocks factorial in 4 repetitions. Growth indicators such as: total dry matter (TDM), stem dry matter accumulation (SDM), leaf dry matter accumulation (LDM), pod dry matter accumulation (PDM) and grain dry matter accumulation (GDM) plant height, number of seeds per plant, 100seed weight, biological yield, harvest index and grain yield were evaluated. Flip93-93 cultivar in fall cultivation had the highest dry matter accumulation of leaf, stem and the whole plant. Meanwhile Hashem cultivar had the least dry matter accumulation in all of the indexes. Reducing the dry matter accumulation in total plant in delay cultivation (spring) rather than fall cultivation in Flip93-93, 12-60-31 and Hashem in order, were 145, 23, and 47%, which show that superiority of fall cultivation rather than spring cultivation. Finally Flip93-93 cultivar in fall cultivation (1002.1 Kg/ha) had the highest and 12-60-31 cultivar in delay cultivation (336.52 Kg/ha) had the least seed yield.