تأثير الرش بكبريتات الحديدوز Feso4 و مواعيد الزراعة في صفات النمو و الحاصل و مكوناته و بعض الصفات النوعية لمحصول السمسم Sesamum indicum L. تحت ظروف محافظة ذي قار

Abstract EN

Field experiment were conducted during the 2009 and 2010 cropping seasons at the AL-Garaf in Thi –Qar governorate ,to study the effects of three planting date (15 th may , 5 th June , 26 th June) assigned to the main plots ,and five levels of micronutrients (0 , 800 , 1600 , 2400 , 3200) gm Feso4 \ ha assigned to the sub plots , on the growth and yield and yield components on sesame crop .The experiments were laid out in R.C.B.D(split plot design) with three replication.

The results showed that ;the second planting date (5 June) was superior on the other sowing dates in stem diameter ,leaf area ,dry weight of plant ,no.

of capsules per plant ,length of capsule , no.

of seeds per capsule , yield of single plant , total yield of seeds (tan\ha) in both seasons .

and the four level of fertilizer was superior on the other fertilizer levels in all growth traits , yield , yield components and protein percentage.The interaction between two factors of this experiments showed significant effects on many traits , the interaction between (5 th June and four level of fertilizer 2400 gm Feso4 \ ha) was significant sprier in all traits were studied in both seasons