تأثير الكثافة النباتية في نمو و حاصل و نوعية بعض التراكيب الوراثية لمحصول زهرة الشمس (Helianthus annuus L.)‎

Abstract EN

Field experiment was conducted during spring season in 2005 at two locations: AL-Hamdania and AL-Quba to study the effect of four plant population (33333, 41700, 55600 and 83333 plants ha-1), on growth, yield and quality of three sunflower cultivars (Coban, Peredovik and Iraqi flower), using randomized complete block design with three replication.

The results showed that superiority of head diameter, no.

of seeds / head, wt.

of 1000 seeds, fertility percentage and linoleic acid percentage with 33333 plants ha-1, while plant population 55600 plants ha-1 was superior in seed and oil yield for both locations.

Peredovik variety was significant for most studied characters except linolenic acid percentage.

The interaction of 55600 plants ha-1 with Peredovik cultivar gave a higher value on seed and oil yield, which increased up to 3.25 and 1.49 ton ha-1 in AL-Hamdania and up to 3.21and 1.5 ton ha-1 in AL-Quba location respectively