Abstract
The experiment was carried out in an agricultural seasons (2011-2012) at two locations: Baasheka 25 km sowthren east mosul and Alkosh 30 km northern east mosul . The study was included two factors spraying time (pre and post emergence) and concentration of challenge herbicide (zero, 500, 750 and 1000 ml/h-1). The data were analysed according th the RCBD using Duncan test to compare between the treatments. Chickpea were planting at tow locations(Kab variety) at level of 15 kg /donum, with spraying challenge herbicide post emergence at 18 and 21 /4/2011 There was no significant different the tow locations for No. of narrow leaves, DW of narrow leaves and height of plants,At Basheka location. The No of broad leaves, DW of broad leaves No of nodes had a significant high values reach upto 49.6, 83.25 and 5.95 % as compared with Alkosh location. Wheares the weight of total yield and biological yield were significant higher at Alkosh location 4.68, 23.13 % respectively. The spring pre emergence superior in No. and DW of broad leaves 39.32 and 48.18 % for both parameters respectively. There were no significant effect for time of spraying for all other characters. The dose 750 ml/h-1 superior in decreasing of No and DW of narrow leaves, while all other doses were suprire in No and DW of broad leaves compared with the control. All doses a gave a significant increase in yield grain compared with control treatment.
