Abstract
Twelve field pea genotypes were evaluated in seven environments in Eastern Amhara in main production season (2010-2012). The objective of this trial was to identify stable and high yielding field pea genotype for production in Eastern Amhara. The trial was conducted using randomized complete block design with three replications. Combined analysis of variance for grain yield revealed that genotypes, environments, and genotype by environment interaction effect were highly significant (P ≤ 0.01). The environments, GEI, and genotypes were accounted for 77.47%, 13.83%, and 4.37%, of the total sum squares, respectively, indicating that field pea grain yield was significantly affected by the changes in the environment, followed by GEI and genotypic effect. The candidate genotype, EH-03-002, showed 14.42% and 44.87% yield advantage over the standard and local checks, respectively. Considering the seven environments data and field performance evaluation during the variety verification trial, the National Variety Releasing Committee has approved the official release of EH-03-002 with the vernacular name of “Yewaginesh” for moisture deficit areas of Wag Lasta and similar agroecologies.
Highlights
Field pea (Pisum sativum L.) is one self-pollinated diploid (2n=14) annual of the most important annual cool season pulse crop and is valued as high protein food [1]
Twelve field pea genotypes advanced from observation nursery and preliminary variety trials, together with local check and standard check (Agrit), were evaluated during the main cropping season for four convictive years (2010 to 2012) in two sites and each site and year were treated as a single environment
GEij represent the effects of the genotype, environment, and genotype by environment interaction, respectively, R (E) is the effect of replications within environments, and eij is the average random error associated with the ith plot that receives the ith genotype in the jth environment
Summary
Field pea (Pisum sativum L.) is one self-pollinated diploid (2n=14) annual of the most important annual cool season pulse crop and is valued as high protein food [1] It is widely grown in the cooler temperate zones and in the highlands of tropical regions of the world. Field pea is one of the most important pulse crops in Ethiopia which is produced for a long time in high- and mid-altitude areas by smallholder farmers. It covers an area of about 25147.69 hectares with an annual production volume of 21406364 kg [3]. (2) To identify and release stable and high yielding field pea genotype for Wag Lasta and similar agroecologies of the country
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