تأثير مواعيد الزراعة في صفات النمو و الحاصل لستة اصناف من حنطة الخبز

Abstract EN

The study was conducted during the season 2020-2021 in Abu Ghraib Field Crops Research Station / Agricultural Research Office using six varieties of beard wheat (Triticum aestivum.

L) (Ebaa 99, Abu Ghraib 3, Babel 113, Booth 10, Baghdad 1 and Al-Rasheed) to know the effects of three planting dates (15 Nov.

, 1 Dec.

and 15 Dec.

) in growth yield and its components characteristics.

The study was carried out using the split-plot design in a Randomized Complete Block Design (RCBD) with three replicates.

The main plots included planting dates, and the secondary plots included the varieties.

The planting date (1 Dec.

) recorded the highest grain yield of 5.88 tons.

ha-1 and did not differ significantly from (15 Dec), while the planting date of (15 Nov.

) which gave the lowest grain yield of 5.33 tons.

ha-1.

There were significant differences between varieties.

Baghdad1give the highest value of grain yield, 6.26 tons.

ha-1, 16.96 tons.

ha-1, while Babel113 give the highest value weight of 1000 grains 48.78g.

Al-Rashid cultivar recorded the lowest value of grain yield, grain filling period, 1000-grain weight, and harvest index amounted to 4.93 tons.

ha-1, 45.55 days, 43.67 g, and 31.45% , respectively.

The interaction between the varieties and planting dates was significant, as Abu Ghraib3, planted on 1 Dec.

, gave the highest grain yield, 6.94 tons.

ha-1 is significantly superior to the cultivars planted at different dates, giving less than 5.50 tons.

ha-1.