Effec of Salt Stress on Yield and Its Components of Four Cultivars of Barler

Abstract

A field experiment was carried out at the field with clay loam soil in the winter seasons of 2018 - 2019 and 2019 - 2020 in order to study the effect of three levels of salt stress on yield and its components for four cultivars of barley (Hordeum valgare L.(. which be approved in Iraq.Factorial experiment with in Randomized Complete Block design with three replications. The treatments included three levels of irrigation water salinity (5,10,15) ds.m-1 and four cultivars of barley (IPA 99, Buhooth 265, Samir, and Amal). The results showed that the salinity of the irrigation water caused a significant decreases of the number of spikes.m-2, number of grains. spike-1, weight of 1000 grains (gm) and grain yield. plant. -1 at levels S2 and S3 and for both studies seasons in comparison with treatment S1, which gave the highest averages for the mentioned traits, significant differences among barley cultivars in terms of their tolerance to salinity. It was found that Samir cultivar was more tolerant to salinity than the other cultivars.

Effect of Different Spray Concentrations of Zinc on the Growth Traits and Yield of Six Row Barley Varieties

“…Reason is due to genetic differences betweenvarieties in terms of their ability to transfer the products of carbon assimilation process to outfalls, which led to an increase in weight of 1000 grains. This result was consistent with [21]. Effect of interaction between means of two growing seasons and varieties was significant in trait, as the combined treatment ( variety Hatar Aswad x first season) was characterized by highest average for trait, which amounted to (42.333) grams, while binary combination ( variety Shuaa x second season) recorded lowest average for tm trait, which amounted to (36.666).…”

Evaluation of the Biological Phenomenon of Cadmium Accumulation of Wheat Crop in Salt-Affected Soil

“…The spread of soils affected by salinity in many parts of the world in general and in central and southern Iraq in particular is one of the important factors in soil desertification, and the most dangerous one due to climatic factors is the decrease in the amount of fresh water, the lack of rainfall, and the drought that swept the world [1][2][3][4][5][6] and Iraq and neighboring countries took the largest share of it in recent years, which affected the agricultural production sector and caused a decrease in agricultural areas and a decline in production, especially in most of the arid and semi-arid regions that depend on irrigation. Recent statistics indicate that the total land area affected by salts amounts to 955 million hectares, which is about 10% of the land area.…”