تأثير المقدرة التنافسية لأصناف القمح الطري (Triticum aestivum L.)‎ و المكافحة الكيميائية للأدغال الأعشاب الضارة المرافقة لمحصول القمح

الملخص EN

A field experiment was conducted at the field crop research station of the faculty of agriculture, Tikrit University, during the winter season 2017-2018 with the aim to assess the competitiveness of different wheat genotypes to the accompanying weeds.

the experiment followed a randomized complete block design (R.C.B.D.) with three replicates.

the main treatments included the herbicide atlantis 3.6% w.

g.

and the untreated (control) treatment.

the secondary treatment included ten wheat cultivars, Noor, Hashemite, al-Baraka, Dor 29, Sham 6, al-Rashid, aba 99, research 22, aba 95 and Abu Ghraib-3.

the wheat cultivars varied in their competitive ability to the accompanying weeds, with the cv.

aba 99 scored the highest value in total yield (4.99 tons/ha) and 1000 kernels weight (39.81 g).

it was noted that the treatment with the herbicide atlantis was superior and led to the highest plant height of 80 cm, the highest number of tillers (585.2 / m2), the highest number of ears (572.37 / m2), and a total yield of 4.54 ton / ha.