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ARS Home » Plains Area » El Reno, Oklahoma » Oklahoma and Central Plains Agricultural Research Center » Livestock, Forage and Pasture Management Research Unit » Research » Publications at this Location » Publication #370953
Research Project: Integrated Agroecosystem Research to Enhance Forage and Food Production in the Southern Great Plains

Location: Livestock, Forage and Pasture Management Research Unit

Title: Varietal evaluation of promising maize genotypes in mid hills of Nepal

Author
item NEUPANE, BIPIN - Non ARS Employee
item POUDEL, ANKUR - Non ARS Employee
item Wagle, Pradeep

Submitted to: Grazinglands Research Laboratory Miscellaneous Publication
Publication Type: Abstract Only
Publication Acceptance Date: 2/10/2020
Publication Date: 10/1/2020
Citation: Neupane, B., Poudel, A., Wagle, P. 2020. Varietal evaluation of promising maize genotypes in mid hills of Nepal. NAPA Conference 2020 Second Biennial Conference. September 25-28, 2020. Poster No 138. Available: https://www.napaamericas.org/proceedings.php.

Interpretive Summary: Abstract only

Technical Abstract: The varietal evaluation of hybrid maize genotypes with desired performance is one of the main objectives of maize breeding program. Fourteen hybrid maize genotypes were evaluated for 17 quantitative and nine qualitative traits in randomized complete block design (RCBD) with three replications at Sundarbajar, Lamjung, Nepal. The major objective was to identify superior genotypes based on genotypic and phenotypic variability, heritability, genetic advance, and correlation on grain yield and yield associated traits. Analysis of variance revealed the existence of significant differences for 17 quantitative traits among the genotypes. Large variation was observed for grain yield among genotypes. Genotype RL-24-0/ RL-111 had the lowest yield (5.53 t/ha) and genotype Pioneer had the highest yield (11.98 t/ha) whereas check variety Rampur Hybrid-10 had the yield of 8.23 t/ha. Grain yield showed highly significant positive correlations with stem circumference (r= 0.67) and number of ear (r= 0.6), but a significant negative correlation (r= -0.55) with anthesis-silking interval. The dendrogram grouped 14 genotypes into four clusters. Cluster I incorporated the highest number (five) of genotypes, which also had highest cluster mean (average yield of ~10 t/ha) for grain yield. Traits namely test weight, ear aspect, anthesis-silking interval, number of ear, and tassel branching can be considered in selection process of maize crop improvement program as they had higher genotypic and phenotypic coefficient of variations, and heritability along with high genetic advances.