A field experiment was carried out in the winter season 2021-2022 in Nineveh
Governorate in two locations, the first in Al-Hamdaniya district, and the second in the
Mosul district (Region AL haawe) to know the effect of adding Nano amino acids on
the growth and yield of bread wheat (Triticum aestivum L.). The experiment was applied
by using a randomized complete block design (R.C.B.D) by the factorial experiment
system with two factors, the first factor was three cultivars of bread wheat (Adana 99,
Tal Afar and Jihan) and the second factor was two times of Nano amino acids
application (the first date in the vegetative growth stage, the second date in the flowering
stage), with three replications. Some characteristics of vegetative growth, (plant height
cm and area of the flag leaf ( however, the grain yield and its components (No of spikes.
m-2, spike length.cm, No of grains in the spike, 1000 grains weight.g, grain yield g.m-2
and the biological yield g.m-2). The results showed that the two cultivars Adana 99 and
Tal Afar were superior over Jihan cultivar in most of the traits studied (plant height cm,
No of spikes. m-2, No of grains in the spike, 1000 grains weight. g and grain yield g.m-
2) in the two study locations. As for The application time of amino acids spraying, the
first date of spraying at the vegetative growth stage was significantly superior in most
of the studied traits, which including grain yield with an average of (423.1 and 452.46
g.m-2) for the two experiment locations , respectively. The second spraying date at the
flowering stage was significantly superior in the traits spike length and 1000 grains
weight with an average of (8.22 cm and 37.15g), respectively, in Al-Hamdaniya site.
And the 1000 grains weight with an average of (37.48g) for the Mosul location