مقایسه سازگاری هیبریدهای خارجی ذرت دانه ای و مقایسه با ارقام داخلی در دشت میاندوآّب

On one side according to the high potential of Miyandoab plain at producing grain corn and the farmers' interest in growing corn and on the other side regarding high moisture of the grain at harvest in late maturing corn group, the necessity to grow mid-maturing corns increases.
As many as 20 foreign hybrids of grain corn along with 2 domestic lines (KSC705 and KSC704) were studied in order to determine their yield and initiative compatibility to different climatic condition at Miyandoab Agricultural Research Station.
The design exprimental was Randomized Complete Blocks with four replications. In each plot there were four rows of each hybrid and each row had 16 seed piles that the distance between the piles was 38 cm.
The sampling performed at different growth stages were as follows: plant and corn ear height, kernel depth and 1000 kernel-weight, number of kernel per row and the number of kernel row per corncob, kernel shape and corncob length.
Simple analysis of variance for this region was conducted and means comparison was performed by use of LSD method.
The effect of treatment for the trait of yield at the probability level of %5 and for the traits seed depth, 1000 kernel-weight, number of kernel row, percentage of corncob and corncob length didn't show any significant difference.
Since the traits above are mainly qualitative and are influenced by the genes with high effects, there fore the hybrids of this trial had enough variety and as well as direct cultivation,
They can be useful in order to achieve new lines.
Among the evaluated foreign hybrids, the hybrid no 11(BC712) with a humidity of %17.3 had the highest yield (19.1 ton/ha)