Effect of Nitrogen and Seeding Rate on β-Glucan, Protein, and Grain Yield of Naked Food Barley in No-Till Cropping Systems in the Palouse Region of the Pacific Northwest

Barley ( Hordeum vulgare L.) has a storied history as food crop, and it long been dietary staple of peoples in temperate climates. Contemporary research studies have focused mostly on hulled barley for malt animal feed. As such, nitrogen (N) seeding rate agronomic data naked are lacking. In this study, we evaluated the effects N ß-glucan protein content, phenotypic characteristics barley, including grain yield, emergence, plant height, days to heading, maturity, test weight, percent plump kernels, thin kernels. Experiments were conducted at two no-till farms, located Almota, WA, Genesee, ID, Palouse region Pacific Northwest from 2016 2018. The experiment comprised varieties (“Havener” “Julie”), employed rates 0, 62, 95, 129, 162 kg ha −1 , 250, 310, 375 seeds/m −2 . Increased fertilization was shown significantly increase all response variables, except β-glucan content variety Julie, resulted higher mean yield Havener Julie both Almota Genesee up 95 had yields (3,908 ) than (3,099 across locations years. (8.2%) (12.6%) compared (β-glucan = 6.6%; 9.1%). Our results indicate that is associated with genotype, environmental, factors dryland cropping systems Palouse.