Investigation on proper planter for wheat planting in dry land

The important factors effected on wheat grain yield, are seedling quality, seed density and proper distribution of it field. Now a days wheat has been planting by different drills. The performance of drills are vary in type of distributors, openers, row space, openers and pressure wheels.The present study was conducted for three years in Maragheh, Zargan, Tajarak and Sararood dry land agriculture research stations in East Azarbayjan, Fars, Hamadan and Kermanshah provinces to select of proper drill with good technical ability and increasing wheat yield. The experiment were conducted for (2004-007) years in randomized complete design with for treatments consist of Sahan kesht, Kesht gostar, Barzgar hamadan drills an Broad casting seed an covering by diskharrow as a chek. Crop measurements were plant height, spike per/m2, seeds/spike, TKW, Biological and grain yield, harvest index and Drill measurements were seeding depth, uniformity of row spacing in action, seed counter performance, power requirement, slippage evenly of rows after planting. In Maragheh station results of combined variance analysis revealed that the wheat yield in different years was different because of difference rate and distribution of precipitation and cold rate of weather in different years. Therefore grain yield in the third year (3215 kg/ha) was highest. Effect of treatments on wheat grain yield and yield components was significant. So that, highest grain yield (2518 kg/ha), biological yield (9579 kg/ha), number of spike per square meter (433 spike), obtained from plot which planed by Barzgar Hamadan drill. So, this treatment increased root wheat per square meter by 8, 15 and 20 percents respectively in comparison to Sahlan kesht, Kesht Gostar and check. Row space in plots which planted by Sahlan kesht and Kesht Gostar drill was actually. Therefore to pay attention above cases, for obtaining higher grain yield of dryland wheat, it is recommended use of Barzgar Hamadan drill. In Sararood research also station results of combined variance analysis revealed that the wheat yield in different years were different because of difference rate and distribution of precipitation and cold rate of weather in different years. Therefore grain yield in the third year (2729 kg/ha) was highest effect of treatments on wheat grain yield and yield components was not significant, but highest grain yield (3509 kg/ha), biological yield (12150 kg/ha), obtained from plot which planed by Barzgar Hamadan drill in second year. During planting breakage rate of the seed was insignificant at all drills. In Tajarak research station results showed that effect of treatments on wheat grain yield component was not significant. Wheat grain yield in different years was different because of difference rate and distribution of precipitation and cold rate of weather in different years. Therefore grain yield in the third year significantly increased. (1597 kg/ha) was highest. Overall highest grain yield by 1275 obtained from the plots which planted by Kesht gostar drill. In Zargan research station results showed that effect of treatments on wheat grain yield component was not significant. The highest grain yield (1097 kg/ha), biological yield (3242 kg/ha), obtained from plot which planed by Barzgar Hamadan drill.