Document Type : Research Paper
Abstract
This experiment was conducted in the vegetable research farm, College of Agriculture , Duhok University. Three levels of seaweed extracts " Sea force 1 " (i.e.0,2,3 ml/ L Dist . water) as a foliar application on two squash plant cultivars " Mullah ahmed and Zucchini " at spring and autumn growing seasons of /2009. Plants were sprayed once at the beginning of flowering, male and female flower and twice (at the beginning of flowering and the second after 15 days from the first spray ).
Results indicated that spraying with sea force 1 increased , leaf area , chlorophyll. Results indicated that the highest value of chlorophyll were in the interaction treatment between Zucchini, twice application at the high concentration (51.98, 38.80)% in the two growing seasons respectively. Sea force 1 resulted in an increase in the early and total yield, reached (1.827 ,1.784) and (38.37,30.29) Ton /ha at the first and second seasons respectively. Spraying with the Sea force1 twice at 3 ml/ l will give the best results.
The interaction treatment between Zucchini, and twice application at the high concentration gave the highest early yield (3.097, 2.996) Ton /ha and highest productivity (43.90, 37.33) Ton / ha in the two growing seasons respectively
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