تأثير مواعيد الزراعة و معدلات البذار في مكونات الغلة لبعض الطرز الوراثية من الشعير (Hordeum Vulgare L.)‎ تحت ظروف الزراعة المطرية

الملخص EN

This study was carried out in the farm of the Faculty of Agriculture, University of Damascus, during the growing season 2013-2014 to study the effect of seeding rate (200,300,400 seed.

m-2) at two planting dates (December and January) on yield and its components for three barley genotypes (Furat6, Furat3, Line L-7003).

The results showed that there were significant differences between all studied traits.

First sowing date (December) was significantly superior in number of productive spikes.

m-2, number of seeds per plant and grain yield (422.7 sp.m-2, 56.54 seed.

plant-1, 614 g.

m-2, respectively).

However, there was no significant difference between the two planting dates (December and January) in thousand kernel weight ( 29.18 and 26.05 g respectively).

The genotype Furat6 was significantly superior over other genotypes (Furat 3 and the line L-7003) in the number of spikes.m-2, number of seeds per plant and 1000-kernel weight (363.4 sp.

m-2 , 67.63 seed.

plant-1 , 29.18 g respectively) at seeding rate of 300 seed.

m-2, while, the genotype L-7003 was significantly superior in grain yield at the highest seeding rate (400 seed .

m-2).