Effect of two types of sprayers nozzles on the yield traits and its components for cultivars of flax and evaluating the fixed spraying irrigation systems

الملخص EN

A field experiment was conducted at the Daquq Research Station located 40 km south of Kirkuk at longitude 28-44 ° east and latitude 8-35 ° north for the 2019 winter season, starting from 11/15/2019 to 5/15/2020.

The study included two factors: the first was two types of sprayer nozzles (Canadian and Turkish) and the second factor was seven cultivars of flax.

The experiment was applied using The Randomized Complete Block Design (RCBD) according to the split-plot system, with three replicates.

The main plots included two types of sprayers nozzles, while the subplots included seven cultivars of flax.

The experiment aimed to test and evaluate the fixed spraying irrigation system for the two types of sprayers nozzles and to determine the best combination of the sprayer nozzles and the type of cultivar with study the response of flax cultivars to the conditions of Kirkuk province.

The results showed that the Canadian sprayer nozzle has excelled over the Turkish sprayer nozzle in the studied traits related to the evaluation of the fixed spray irrigation system.

The Canadian sprayer nozzle has excelled to that of the Turkish sprayer nozzle in influencing the traits related to the flax yield.

Sakha 4 cultivar has excelled in most of the characteristics, including the yield and its components due to the suitability of the environmental conditions of the Kirkuk provinces to this cultivar.

The results were as following: The Canadian sprayer nozzle has excelled in the traits of distribution uniformity for the lower quarter, the efficiency of adding water, the overall efficiency of the system, and the uniformity coefficient of water distribution which gave averages amounted to (62.43%, 73.00%, 56.24%, and 77.40%), respectively.

The Sakha 4 cultivar has excelled in most of the traits, including the number of secondary branches per plant, the number of capsules per plant, the seeds yield per plant, and the biological yield of the plant which gave averages amounted to (13.31 branch.plant-1 , 53.95 Capsule.plant-1 , 3.30g, and 11.30g), respectively.

the superiority of the Syria/Erbil cultivar in the traits of plant height and the weight of 1000 seeds by giving averages amounted to (80.26 cm and 11.13 g), respectively.

The Syria/Anbar cultivar also excelled in the trait of the number of seeds per capsule by giving an average amounted to (9.10 Seed.capsule-1 ), the Giza-10 cultivar has excelled in the trait of harvest index per the plant by giving an average amounted to (40.48%).