Document Type : Articles
Author
Crop Field Dept., College of Agriculture, University of Tikrit, Tikrit, Iraq
Abstract
Salahuddin Governorate (10 km east Tikrit University ) during the winter season 2018-2019 by using a Randomized complete Block Design in a split-plot arrangement with three replications. Potassium foliar application levels (0, 1 and 2%) were in the main plot and 14 genotypes of bread wheat in the sub-plot. Spraying was at two stages: booting and anthesis stage. The characteristics of the study are plant height (cm), flag leaf area (cm2), a number of spikes m2, number of grains per spike, 1000grain weight, grain yield (ton.h-1), and protein percentage in the grains (%). The results revealed a significant difference among potassium levels, genotypes and their interaction. The third concentration of potassium oxide spray was significantly superior to the characteristics of plant height (95.03 cm), flag leaf area (57.50 cm2), the weight of 1000 grains (43.92 gm), grain yield (5.27 ton.h-1), and protein percentage (10.05 %). EBAA 99 genotype was significantly superior by giving the highest average plant height (96.74 cm), flag leaf area (57.76 cm2), and protein percentage (11.65 %). The best interaction treatment was between Ebaa 99 genotype and third concentration of potassium in plant height (101.13 cm), and protein percentage (11.93 %). Hedhab genotype with the second concentration of potassium gives the number of grains (50.93 grain.spike-1) & Boro with the third concentration of potassium gave (49.43 grain.spike-1). The first level (without spraying) scored the lowest averages for all characteristics studied
Keywords
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