Study the Effect of Different Water Quality, Number of Irrigations and Their Interaction with Entries of Oats Avena sativa L. in the Conditions of Iraq

Ahmed Hawas Abdullah Anees(1)* and  Yosif Abdalhameed Al-Hajooj(1)

(1). College of Agriculture, University of Tikrit, Iraq.

(*Corresponding author: Ahmed Anees. E-Mail: ).

Received: 28/04/2022                          Accepted: 6/09/2022


The aim of this study is to compare 10 oat genotypes (1-Alguda ,2- Anatolia ,3-Pimula ،4-Genzania ،  5-Hamel, 6- Icarda short,  7- Kangaroo, 8- Icarda tall , 9- Mitika and 10- Possum) under the influence of different water quality (well, river and fish breeding tanks waste) and number of irrigations 2, 4 and 6 times, and their binary and triple interactions in characteristics of days to flowering (day), flag leaf area (cm2), plant height (cm),  effective tillers number (m2), number of grains per panicle, 1000 grains weight (g), and grain yield (ton ha-1). The experiment was conducted at the Department of Field Crops Research Station – College of Agriculture- Tikrit University during the agricultural season of 2017-2018. The design was randomized complete block (RCBD) in three replicates with a split- split- plot arrangement. The water quality factor occupied the main plots, irrigations number occupied the sub plots and the genotypes occupied the sub sub plots. The obtained results and analysis of the variance table showed, factors and their double and triple interactions were significant for all studies’ characteristics except for the water quality and its interaction with irrigations number and the irrigation numbers with genotypes and triple interaction for the characteristic of days to flowering, effective tillers number and 1000 grains weight, also irrigations number and interaction between water equality and genotype for days to flowering. On one hand, the genotype (3) was superior when it interacted with well water and with Six irrigations on the other hand. In addition to the triple interaction which was significant for effective tillers number and grain yield (113.7, 113.4, and 134.3 tillers m-2) and (4.1, 4.2, and 5.0 ton ha-1) respectively, and the genotype (5) for binary and the same triple interactions for panicle grains number (58.6, 67.1 and 73.9 grain panicle-1), respectively. And also, the genotype (1) for binary and the same triple interactions for 1000 grains weight (34.7, 34.5, and 73.9 g), respectively. Therefore, the outcomes of this study must be taken into the consideration in order to determine the response of these entries to the factors of the study and to emphasize testing them with other factors in addition to different seasons and locations, to know the extent of its production capacity to reach distinct and promising varieties in the future.

Keywords: Oats varieties (entries), irrigation water quality, number of irrigations.

Full paper in Arabic: pdf