Characterization and preliminary evaluation of local germplasm of &lt;i&gt;Telfairia occidentalis&lt;/i&gt; Hook F. accessions in Enugu, Nigeria

Chukwudi, Uchechukwu Paschal; Agbo, Christian U.

doi:10.4314/as.v15i2.3

Cited by 7 publications

(12 citation statements)

References 9 publications

(11 reference statements)

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“…Table 2 showed the estimates of the variances and genetic parameters of the 10 maize genetic materials evaluated in 2015 and 2016 planting seasons for various quantitative traits. Variability of a trait is necessary for its inclusion in crop improvement programme (Chukwudi and Agbo, 2016;Ene et al, 2016). Percentage coefficient of variation (CV%) provides comparative assessment of the amount of variability between crop traits (Ene et al, 2016).…”

Section: Genetic Variabilitymentioning

confidence: 99%

“…Principal component analysis is used in evaluating the patterns of variation in germplasm (Chukwudi and Agbo, 2016). The Principal component analysis results indicated that the first two axes explained 91.8% and 93.3% of the total variation in 2015 and 2016, respectively (Table 3).…”

Section: Principal Component Analysismentioning

confidence: 99%

“…The superior yield performance of varieties in cluster B over 'Oka Awaka' and cluster C implied that they can be used for maize improvement program or direct introduction in the derived savannah agro-ecology. Cluster analysis has proved to be an effective method in grouping accessions (Shukla et al, 2010;Chukwudi and Agbo, 2016) which is important in maintaining their biodiversity and utilization in crop improvement program (Chukwudi and Agbo, 2016). Cluster analysis had been used in maize improvement studies in different parts of the world (Bhiusal et al, 2017;Hartings et al, 2008;Liu et al, 2006;Rahman et al, 2017;Subramanian and Subbaraman, 2010).…”

Section: Cluster Analysismentioning

confidence: 99%

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Environmental impact and genetic expressions of new drought tolerant maize genotypes in derived savannah agro-ecology

et al. 2021

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DOI: 10.15835/nsb13110691 Reduced water resources in sub-Saharan Africa will not only pose threat to the livelihood of poor resource farmers, but also food security in the region. Drought tolerant (DT) maize varieties hold promise to reducing poor resourced farmers’ vulnerability and improve food security in sub-Saharan Africa. Ten maize genotypes obtained from the International Institute of Tropical Agriculture (IITA), were evaluated in 2015 and 2016 using a randomized complete block design experiment with three replications to estimate their genetic variability and predict their genetic advances in the derived savannah agro-ecology. Growth, phenological and yield data were collected from 10 middle row plants. Genetic advance, genotypic, phenotypic and environmental coefficients of variations and their variances were estimated. Principal component and hierarchical cluster analyses were also performed. The dendrogram showed that at 80% dissimilarity point, the genotypes were grouped into clusters A, B and C in both years. The first two principal components explained 91.8% and 93.3% of the total variation in 2015 and 2016, respectively. Number of grains cob-1, plant height and number of days to physiological maturity were consistent in explaining the variations observed in the maize population. Heritability estimates in broad sense ranged from 1.35% for number of leaves to 87.43% for grain yield per hectare. The genetic parameters studied showed significant variations among the growth, phenological and yield data collected that warrants selection and maize improvement program using the DT maize inbred lines in derived savannah agro-ecology.

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Section: Genetic Variabilitymentioning

confidence: 99%

Section: Principal Component Analysismentioning

confidence: 99%

Section: Cluster Analysismentioning

confidence: 99%

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Environmental impact and genetic expressions of new drought tolerant maize genotypes in derived savannah agro-ecology

et al. 2021

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“…Dry matter partitioning is influenced by the sink strength of an organ; its ability to compete for assimilates and the developmental stage of the plant (Chukwudi and Agbo 2016). Availability of assimilates, rate of assimilate remobilisation from source tissues, genotype and developmental stage of the plant also determine the dry matter partitioning in plants (Chukwudi and Agbo 2016;Smith et al 2018). Continuous cell division and expansion of carrot root during growth gives it an edge to accumulate available assimilates.…”

Section: Effects Of Environment Media and Variety On The Yield Compomentioning

confidence: 99%

Maximizing rice husk waste for Daucus carota production

Baiyeri

Chukwudi

Chizaram

et al. 2019

Int J Recycl Org Waste Agricult

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Purpose Rice husk is one of the most widely available agricultural wastes in many rice producing countries of the world. Here, we evaluated carrot production under different rice husk-amended media aimed at providing alternative use for rice husk. Methods The experimental design was 2 × 5 × 4 factorial in completely randomized design with six replications. Factor A consist of two production environments—high tunnel and open field while factor B was five growth media—5:0:0, 4:0:1, 3:1:1, 2:2:1 and 1:3:1 (topsoil:rice husk:poultry manure). Factor C was four carrot varieties; ‘Touchon’, ‘Amazonia’, ‘Carrot New Kuroda’ and ‘Touchon Mega’. Data were collected on seedling emergence and yield parameters. The analysed means were separated using FLSD(0.05). Results The biomass yield from plants grown in high tunnel was significantly higher than plants in the open field. Highest root weight, wet and dry biomass yield were obtained from medium 4:0:1 followed by 3:1:1. Harvest index ranged from 32.3% in medium 1:3:1 to 62% in 3:1:1. Days to seedling emergence among varieties ranged from 8.5 to 11.3. ‘Amazonia’ variety produced the highest root weight, wet and dry biomass yield and was followed by ‘Touchon Mega’. Conclusion Carrot seedling emergence and yield differed in rice husk-amended media under high tunnel and open field environments. ‘Amazonia’ variety grown in media 4:0:1 or 3:1:1 gave the best yield. Inclusion of rice husk in media formulation beyond an optimum rate resulted in yield reduction in carrot. Carrot is sensitive to the physio-chemical properties of its growth medium.

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“…In west Africa, the plant is a popular source of food, as well as medicinal, oil and fibre. In Western Africa, it is cultivated economically for its seed and young shoots (Orhuamen et al, 2012;Chukwudi and Agbo, 2017).…”

Section: Introductionmentioning

confidence: 99%

Influence of Leaf Extract of Lantana camara Integrated with Maize-based Coating on the Quality of Fresh Talinum triangulare and Telfairia occidentalis Leaves

Adeogun

Ebabhi²,

Adongbede³

et al. 2023

Caraka Tani J. Sustain. Agric.

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Fresh Talinum triangulare and Telfairia occidentalis leaves have a short shelf life; therefore, there is a need to enhance their shelf life using natural antimicrobials to maintain their freshness. The effect of an ethanolic extract of Lantana camara leaf (10% w/v) integrated with a maize-based edible coating on fresh T. triangulare and T. occidentalis leaves was studied. Fresh T. triangulare and T. occidentalis leaves were evaluated for quality (pH, total carotenoid content, ascorbic acid, total phenolic content, fungal load, antioxidant activity, total soluble solids and browning potential) using a centered second-order polynomial (quadratic) model over a 9-day period. The pH values, browning potential, total soluble solids, and fungal loads of T. triangulare and T. occidentalis treated with the ethanolic leaf extract of L. camara integrated with maize-based coating had higher values than those of T. triangulare and T. occidentalis without treatment. Meanwhile, the total carotenoid content, ascorbic acid, total phenolic acid, and total antioxidant capacity of T. triangulare and T. occidentalis treated with the ethanolic leaf extract of L. camara integrated with maize-based coating had reduced values compared to T. triangulare and T. occidentalis without treatment. The disparity in the quality parameter values indicates bioactivity in L. camara integrated with a maize-based coating. This study shows that the integration of the ethanolic extract of the leaf of L. camara with the maize-based coating could be used as a biopreservation agent to improve the shelf life of T. triangulare and T. occidentalis.

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Characterization and preliminary evaluation of local germplasm of <i>Telfairia occidentalis</i> Hook F. accessions in Enugu, Nigeria

Cited by 7 publications

References 9 publications

Environmental impact and genetic expressions of new drought tolerant maize genotypes in derived savannah agro-ecology

Environmental impact and genetic expressions of new drought tolerant maize genotypes in derived savannah agro-ecology

Maximizing rice husk waste for Daucus carota production

Influence of Leaf Extract of Lantana camara Integrated with Maize-based Coating on the Quality of Fresh Talinum triangulare and Telfairia occidentalis Leaves

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