Research on Seed Yield and Yield Components of Some Amaranthus spp. Varieties in Rainfed and Irrigation Conditions

The research was established to determine the seed yield and yield component of some amaranthus spp. varieties (helios, sterk and ultra) in arid and irrigation conditions with three replications according to split plot experiment design in 2017-2018 years. in the study, plant height, stem diameter, panicle height, panicle ratio, stem yield, seed yield, biological yield, harvest index and 1000 grain weight of amaranthus spp. varieties were determined. according to research results, the effect of years (except for stem diameter, panicle ratio and 1000 grain weight), cultivars and growing conditions (except for 1000 grain weight) on investigated parameters differed significantly. accordingly, the highest stem, seed and biological yields were determined in sterk variety, and harvest index was helios and sterk variety. considering the two-year average data, the stems, seeds and biological yields of the cultivars were higher in water than dry conditions. when evaluated in terms of years, seed yield and harvest index were higher in 2017, plant height, panicle height, stem yield and biological yield values were higher in 2018. as a result, it has been demonstrated that the seed yield of sterk variety grown in aqueous conditions is the most suitable variety for the region.