Study on malting barley genotypes under diverse Agroecologies of north western Ethiopia

Abstract

The study was conducted with the objectives to determine the magnitude effect of genotype, environment, and their interactions on economically important traits and identify stable malt barley (Hordeum distichon L.) genotypes. Combined analysis of variance indicated that the main effects due to environment, genotype and GxE interaction were highly significant for grain yield and economically important malting quality triats indicated that development of both specific and wide adaptable varieties are essential. The GxE interaction of grain yield was further partitioned using AMMI and it showed the first two IPCA axes explained most of the sum of squares. According to stability analysis measures genotype G1 was the most stable whereas G13 showed specific adaptation in low potential environments. Protein content and seed size variability measures revealed G9 and G11 in protein content and G1 and G11 in seed size, respectively as the least varying genotypes across environments.

Genotype by Environment Interaction for Protein Content of Malt Barley Genotypes Using the Additive Main Effect and Multiplicative Interaction Effect Model (AMMI) and Genotype Plus Genotype by Environment Interaction (GGE) Biplot

“…The first interaction principal component (IPCA 1) captured 29% of the variation and with the model fitness of 77% but the malt barley genotypes was more explained by the AMMI 2 biplot model analysis provided a model fitness of 89.36% and the result of the study was in agreement with Bantayehu (2013) that had found best model fitness using the second model AMMI 2. (Purchase, 1997) pointed out that the closer the genotypes score to the center of the biplot the more stable is the genotype and the reverse is true.…”

Review on: The Effect NPS Fertilizer Rate on Phenology, Growth and Yield Parameters of Food Barley (<i>Hordeum vulgare</i> L.)

“…Combined application NPS fertilizer showed yields and yield component are significantly increased according to the repot of [28]. Similarly, the combined application of NPS fertilizer significantly increased spike length, Number of grains spike -1 , 1000-grain weight and grain yield by the crop [9,31,50,51,66].…”

Growth, Protein Content, Yield and Yield Components of Malt Barley (<i>Hordeum vulgare</i> L.) Varieties in Response to Seeding Rate at Sinana District, Southeast Ethiopia

“…According to the Ethiopian quality standard, the acceptable grain size (thousand-kernel weight) and test weight (hectoliter weight) for raw barley are in the range 25-35 g and 48-62 kg hl -1 , respectively [47]. The standards set Response to Seeding Rate at Sinana District, Southeast Ethiopia for thousand kernel weight and hectoliter weight by National Standard Authority ranged from 35-45 g and 60-65 kg hl -1 , respectively [49]. Therefore, the results of the present experiment exhibited an acceptable thousand kernel and hectoliter weight in all varieties except HB-1964 variety and with the combination of 100 -150 kg ha -1 seed rate.…”