بررسي تاثير الگوي كاشت و تراكم گياهي برعملكرد و اجزاي آن در هيبريد متوسط رس ذرت سينگل كراس 647 (محقق )

A field experiment was conducted during 1998 in research station of college of agriculture university of Tehran to determine the effect of density and planting pattern on the yield component of a hybrid corn KS.C 647, using a strip plot design with four replications. The three levels of plant density (70000, 85000 and 100000 pl/ha) was vertical factor and four levels of planting pattern (includes one level of conventional culture single row and three levels of double row with 15: 20 and 25 centimeter apart) was the horizontal factor The results showed that by increasing the plant density up to 100000 pl/ha in single and double row planting, total dry weight of biomass increased and dry weight of grain yield, No of seeds in row. No. of row in ear and weight of 1000 seeds were affected by planting pattern significantly. According to the results, double row planting pattern was recommended in high plant density.