تأثير كثافات زراعية مختلفة في صفات الحاصل و مكوناته لثلاثة تراكيب وراثية من فول الصويا (Glycine max (L.) Merrill)

A field experiment was conducted during summer season of 2017. in one of the fields belonging to one of the farmers on the latitude (35.47) degrees north and longitud (44.38) degree east In the kirkuk governorate to evaluate the performance of three genotypes of soybean (Eman, Taqa and Lee74) at different plant densities (500, 400، 333.3, 250, 200 and 166.6) a thousand plant/h, resulted from the combination between three row spacing (40,50 and 60 cm)and two distance between plants(5 and 10 cm). A factorial experiment with three replicate was conducted using a randomized complete block design. The results showed that the genotypes were different significantly from all studied traits, the genotype Eman was surpassed in seed yield (1993.40 kg .h-1). Influenced row spacing significantly from all traits except weight of 100 seeds, the row spacing 40 cm surpassed in seed yield (1920.92 kg. h-1). The spacing between plants showed the different significantly from all traits except percentage of protein in the seed, the spacing 5cm between plants surpassed in seed yield (1946.58 kg. h-1).The double interaction and triple interaction between treatments were significant, the high plant density 500 a thousand plant/h was surpassed in seed yield (2099.31 kg. h-1).