Evaluation of Maize Top Cross Hybrids for Grain Yield and Associated Traits in Three Agro-Ecological Zones in Ghana

Vah, E G

doi:10.22161/ijeab/2.4.66

Cited by 2 publications

(1 citation statement)

References 8 publications

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“…The means of three checks were not significantly different. These indicate that there were genetic variations among genotypes for this trait in agreement with several authors report (Hosana et al, 2015;Miranda et al, 2012;Vah, 2013).…”

Section: Resultssupporting

confidence: 91%

Performances of selected tropical white maize single-cross hybrids for yield and yield attributing traits

Ejigu¹,

Tongoona²,

Ifie³

2017

J. Plant Breed. Crop Sci.

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In Ghana, the production of hybrid maize is at its infant stage, occupying only about 3% of the area devoted for maize production. Therefore, the yields of this crop are low, 1.7 t ha -1 due to the use of open pollinated varieties (OPVs), shortage of high yielding varieties, biotic and abiotic stresses. Thus, the present study was designed to identify superior crosses based on their agronomic performance. Thirtytwo hybrids and three checks were evaluated using a 5 x 7 alpha lattice design replicated twice at the University of Ghana, WACCI research farm during 2015/-16 offseason using drip irrigation. Analysis of variance revealed that genotype mean squares were highly significant (P < 0.001) for days to 50% anthesis and silking, plant and ear height, plant aspect, ear length, number of kernel rows ear -1 , number of kernels row -1 and yield. Similarly, mean squares of genotypes were significant (p ≤ 0.05) for ear rots, anthesis-silking interval, and husk cover. Based on the mean grain yield performance, six promising single crosses, L8 x T2, L1 x T2, L16 x T1, L16 x T2 L4 x T2, L9 x T1 having grain yield of 6377, 6011, 5848, 5222, 5150 and 5135 kg ha -1 , respectively were identified as possible candidates for release after establishing the stability of their performance in multi-locational trials and should be promoted for adoption and commercialization in the country.

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Section: Resultssupporting

confidence: 91%

Performances of selected tropical white maize single-cross hybrids for yield and yield attributing traits

Ejigu¹,

Tongoona²,

Ifie³

2017

J. Plant Breed. Crop Sci.

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Phenotypic performance of new pro-vitamin A maize (Zea mays L.) hybrids using three selection indices

Kolawole

Olayinka

2022

Agriculture (Pol'nohospodárstvo)

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The development of new bio-fortified maize hybrids is crucial for achieving food security and alleviation of micronutrient deficiencies. This study aims at assessing the performance of new pro-vitamin A maize hybrids and identifying potential high-yielding hybrids using base index, multivariate selection index, and rank summation index. Twenty-four pro-vitamin A maize hybrids and one hybrid check were evaluated in the rainy seasons of 2018 and 2019 at Ladoke Akintola University of Technology Teaching and Research farm in Ogbomoso, Nigeria. Hybrids were planted each year in a 5 × 5 α lattice design with three replications. Data collected on grain yield and agronomic traits were analysed. The hybrids showed significant (P < 0.001) variations for all measured traits except plant aspect and maize streak virus scores. The mean grain yield of hybrids over two years varied from 1,106 kg/ha (LY 1312-12) to 5,144 kg/ha (LY 1501-9). The highest yielding hybrid across the years had a 31% yield advantage over the single-cross hybrid used as a check. The base index had the highest selection differential (34%) for grain yield. The rank summation index had a strong correlation with the multivariate selection index (r = ‒0.86+++) followed by base index (r = ‒0.56+++). The three selection indices used identified three superior three-way cross hybrids (LY 1409-21, LY 1501-9 and LY 1501-1) with a slight change in rank order. These outstanding hybrids which combine high productivity with nutrients may be considered for advanced multi-location and on-farm testing before their release to farmers in derived savanna agroecology of Nigeria.

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Evaluation of Maize Top Cross Hybrids for Grain Yield and Associated Traits in Three Agro-Ecological Zones in Ghana

Abstract: Abstract-Maize (Zea mays L.) is an important food crop in Ghana, but its productivity in farmers" fields throughout

Cited by 2 publications

References 8 publications

Performances of selected tropical white maize single-cross hybrids for yield and yield attributing traits

Performances of selected tropical white maize single-cross hybrids for yield and yield attributing traits

Phenotypic performance of new pro-vitamin A maize (Zea mays L.) hybrids using three selection indices

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