Abstract
A field test was conducted during the season of 2004-2005 at kileasan Research Center in Agriculture college- Sulaimani University, to study the influence of varieties(Nainava, American selected), cultural methods(row, sowing) and three seed rates (15, 25 and 35 kg/D) on the lentil growth, yield and its associated weeds. RCBD with three replicate was laid out in factorial experiment. The results indicated that Nainava variety was found to be superior when compared with American selected variety for the characters of pod weight, 1000 seed weight, seed weight/plant, seed yield/m2, but there was no significant difference between the two varieties for the other characters. Row cultural method posses higher and significant value than sowing method for total weed dry weight/m2, plant height, lowest pod height and empty pod no./plant, although an inverse result was recorded for plant dry weight and seed yield/m2. Among the seed rate, the high rate was surpassed the low one in total weed dry weight/m2, lowest pod height, 1000 seed weight and seed yield/m2. A significant interaction between the varieties and cultural methods especially at Nainava culturing by sowing was shown, also a significant interaction was observed between the varieties and different seed rate in one side & between cultural methods and seed rate in other side which revealed linearly increasing of seed yield by increasing seed rate. Simple correlation coefficient data confirm significant correlation between the characters.
