Study on the effects of seed inoculation and planting date on yield and protein content of chickpea varieties

In order to Study on the effects of seed inoculation and planting time on yield and protein content of chickpea varieties, an factorial experiment was conducted with four planting time consist of "A" (autumn planting), "R" (winter planting), "S" (spring planting) and two inoculation treatments by mezorizobium consist of "I1" (with inoculation) and "I0" (non- inoculation) on two varieties of Chickpea consist of "V1" (Desi) and "V2" (Kabuli) based on randomized complete block design in four replications at Saral station (north Sanandaj) in Kurdistan province from Oct. 2005 for three years. The results of combined variance analysis revealed that the Chickpea yield was different affected by rate and distribution of precipitation in different years and it was significant at 1% level. Therefore amounts of grain yield, plant number, thousand kernel weights and grain protein percent in the third year were highest. The main effect of planting time on yield and some related character and also grain quality was significant at 1% level, so that, the highest amounts of grain yield, Fe and Mg concentration was in seed and also lowest pod number without kernel obtained from autumn planting time and the highest grain protein percent obtained from winter and autumn planting time. The main effect of inoculation on yield and some related character, grain quality and soil mineral nitrogen was significant at 1% level. So that, the highest amounts of grain yield, shrub number (3.6m2), soil nitrate and Ammonium nitrogen percent, grain protein percent and lowest pod number without kernel obtained from non-inoculation. The main effect of variety on yield and some related character, grain quality and soil mineral nitrogen was significant, so that, the highest amounts of grain yield, shrub number (3.6m2), soil nitrate and ammonium nitrogen percent, grain Mn concentration and lowest pod number without kernel obtained from Desi variety. Whereas, the highest amounts of thousand kernel weight, grain protein percent, P, Fe and Zn concentration in grain obtained from Kabuli variety. The antagonist effects of planting time, inoculation and variety on grain yield and some related character, grain quality and soil mineral nitrogen was significant, so that, the highest amounts of grain yield, soil nitrate and ammonium nitrogen percent and lowest pod number without kernel obtained from spring planting time with Desi variety and non-inoculation (SI0V1). By the way, from the statistics aspect, the autumn planting of Desi variety without inoculation (AI0V1) with higher treatment were in same class. The highest grain protein percent obtained from winter plant, without and with inoculation and also autumn planting with inoculation of Kabuli variety respectively (RI0V2, RI1V2 and AI1V2), the highest grain Fe and Mn concentration obtained from autumn planting of Desi variety with inoculation (AI1V1), the highest grain Cu concentration obtained from autumn of Kabuli without inoculation (AI0V1) and highest grain Zn concentration obtained from spring planting of Kabuli without inoculation (SI0V2).