IJAIR NAAS Score : 3.99 ,ISSN : 2319-1473

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Mean Performance and Variability Evaluation of Hybrid Maize (Zea mays L.) Varieties for Yield and Yield Attributed Traits at Pawe Agricultural Research Center, Western Ethiopia

Yaregal Damtie; Birtukan Demeke; Taye Haile
Sympathetic the inherited variation, heritability and genetic advance of characters in crop population is the principal requisite for selection platform. This study was designed to evaluate the mean performance and genetic variability for yield and yield attributed traits of hybrids. Ten hybrid maize varieties were evaluated during the 2019 main cropping season at Pawe Agricultural Research Center using the RCB design with 3 replications. The analysis of variance exhibited highly significant difference (P ≤ 0.01) within each hybrid for most characters. The highest mean grain yield (12.3 t ha-1) was obtained from BH549 followed by BH547 and PHB-30G12W (12.2 and 11.7 t ha-1) respectively while the lowest 8.2 t ha-1 was recorded from BHQP548. Traits in this experiment revealed different ranks of variability, heritability and GA among the hybrids. Low to moderate PCV and GCV were verified. Likewise, low to very high heritability and low to very high GA values were also noted for the characters recorded in the hybrids. Common leaf rust, turcicum leaf blight, phosphorial leaf spot and stalk lodging were exhibited higher PCV values. Plant height, ear height, plant aspect and grain yield were showed medium GCV values while ear aspect, days to 50% pollen shading and days to silking were indicated low. Plant and ear height were displayed high heritability convoyed with high to moderate GCV and PCV with GA. Hence, BH549, BH547 and PHB-30G12W varieties are highly recommended for the commercial production. Most characters in the hybrids also showed ample extent of variability, thus there is a possibility for maize genetic enhancement through selection.
Select Volume / Issue:
Year:
2021
Type of Publication:
Article
Keywords:
Genetic Advance; Genetic Variance; Heritability; Maize; Hybrids and Varieties
Journal:
IJAIR
Volume:
9
Number:
6
Pages:
428-436
Month:
May
ISSN:
2319-1473
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