A field experiment was carried out in a Moderate rainfall area (Jleokhan) in the Nineveh Governorate during the agricultural season 2018-2019 to study the effect of press wheels (use (+) and non-use (-), row spacing's (17 cm and 34 cm), and sowing rates (80, 100 and 120 kg. ha-1) in the yield and its components of the wheat crop (Triticum aestivum L) Adana-99 cultivated with Zero Tillage (ZT) planting methods and Conventional Tillage (CT) as a control treatment.The results showed that the planting methods (ZT 17+P) and (ZT 34+P) achieved the highest significant values in the traits of plant height, the weight of 1000 grains, and grain yield. (ZT 17+P) planting method was achieved the highest significant values in the traits of tillers No. m-2 , spikes No. m-2 , biological yield and straw yield. The (ZT 34+P) planting method recorded the highest significant value in protein ratio trait. The sowing rate (120 kg. ha-1) achieved the highest significant values in the traits of tillers No. m-2 , spikes No. m-2 , and grain yield. In grain yield trait, the interaction between the planting method (ZT 17+P) with all sowing rates and the planting method (ZT 34+P) with (120 and 100 kg. ha-1) sowing rates achieved the highest significant value in grain yield, while the interaction between CT with (80 kg. ha-1) sowing rate has the lowest significant value in grain yield.
A field experiment was carried out in two locations (Talkaif and Fayda) in Nineveh Province during the agricultural season (2021-2022) to evaluate 30 cultivars of durum wheat in terms of yield and its components under two Irrigation patterns (supplementary Irrigation SI and Rain-fed), the results showed that the cultivars differed significantly among themselves, the cultivar Firat -93 was significantly higher than the other cultivars in the two locations of Telkaif and Fayda in the No. of spikes.m−2 and the weight of 1000 grains, as it gave (396.67 spikes.m−2, 48 gm.) and (281.33 spikes.m−2, 39.52gm.), respectively. The cultivars Dor-29, Fada 98, and Sarıbasak was superior in the No. of grains.spike−1 for both locations (42.17, 41.67, 41.33) and (30.17, 29, 29.17) respectively, while the cultivar Acsad-65 excelled in grains yield gm.m−2 for both locations (531.39, 226.76), respectively. The two cultivars Smito and Saribasak excelled in terms of grains yield in Fayda location only, reaching (223.4, 214.78 gm.m−2), respectively, while the two cultivars Smito and Ari achieved significant superiority in biological yield. (943.67, 918.33 gm.m−2). As for the Irrigation pattern, all cultivars grown under the SI pattern achieved significant superiority for all traits and for both locations of the experiment.
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