Effect of Plant Spacing on Quality Traits of Seeds Three Varieties of Sunflower Crop (Helianthus annuus L.)

Abstract

The field experiment was carried out during spring season 2016 at in two locations (Al-Khaziaiefi and Al-Hawi) Al-Alam region-east-north of Tikrit city Center of salhaldeen governorate , The experiment covered included the study of three varieties of sunflower crop , Panam (French variety Lillo , French variety Panam and Iraqi variety Aishaqi 1) with four planting spaces (15 , 20 , 25 and 30 cm) so the experimet contain (12) combination treatments , used R.C.B.D design with three replicates . The results of this study are summarized as follw:- The varieties were significantly influnced in most studied traits , the variety Aishaqi 1 was surpassed in traits : weight of the hay , empty seed ratio , pith to hay ratio also it was oil ratio which were 29.970 , 30.856 , and 30.308 % in the two location Al-khazaiefi and Al-Hawi it's two median respectirely . The space 30 cm was surpassed in traits : weight of the hay , empty seed ratio , pith to hay ratio also it was oil and carbohydrate ratios were surpassed (30.323 , 31.394 and 30.858 % and 6.253 , 7.332 and 6.792 %) in the two locations and it's median respectirely . The interaction between planting spaces and the varieties was significant influnced in most studied trits , the variety Aishaqi 1 at 30 cm space was surpassed with higher level from weight of the hay 243.23 gm in Al-khazaiefi location also it was pith to hay ratio in the two location and it's median in ash and soluble carbohydrate ratio 4.546 and 8.353 % in Al-Hawi location.