Samuel C. Chukwu

Samuel C. Chukwu
Ebonyi State University · Department of Crop Science

PhD (Genetics and Plant Breeding)
Lecturer @ EBSU

About

52
Publications
20,869
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667
Citations
Citations since 2017
47 Research Items
663 Citations
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2017201820192020202120222023050100150200
2017201820192020202120222023050100150200
Introduction
Samuel C. Chukwu is currently affiliated with Department of Crop Science, Ebonyi State University. He holds B.Agric in Crop Science (with First Class Honours), MSc in Genetics and Plant Breeding from Ebonyi State University and PhD in Genetics and Plant Breeding from the University of Putra Malaysia. He has successfully supervised and graduated many undergraduate and post-graduate students. His research is focused on improvement of crops for high yielding & resistance to biotic & abiotic stress.

Publications

Publications (52)
Preprint
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Most tropical nations regard the sweet potato ( Ipomoea batatas (L.) Lam.) to be their most significant staple crop. It is mostly recognized for its ability to withstand drought, grow quickly, and produce with few inputs. A study was carried out during the 2020 and 2021 growing year a field experiment was conducted at the University of Ebonyi State...
Article
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Citation: Halim, A.A.B.A.; Rafii, M.Y.; Osman, M.B.; Chukwu, S.C.; Oladosu, Y. Physicochemical Properties and Tissue Structure of High Kernel Elongation Rice (Oryza sativa L.) Varieties as Affected by Heat Treatment. Foods 2023, 12, 2207. Abstract: Heat treatment could affect the structure and properties of rice varieties. The present study was con...
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Introduction Sweetpotato is a vegetatively propagated, highly heterozygous and outcrossing crop. Genetic improvement of sweetpotato is complicated because of the hexaploid nature of the crop. The objective of this study was to assess genetic compatibility between sweetpotato accessions collected from Niger and Nigeria to select the best parents for...
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West Africa is a dry region and drought tolerant sweetpotato cultivar was not reported. The objective of this study was to develop higher yielding drought tolerant sweetpotato hybrids following accelerated breeding scheme (ABS), and study G × E interaction. During advanced yield trial, the assessment of clones was conducted in six locations: four i...
Preprint
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Rice varieties such as Mahsuri Mutan and Basmati 370 are categorized as specialty rice with kernel elongation ratio exceeding 1.6 and 2.0, respectively. Ageing treatment in rice could affect the physical and chemical properties of rice such as grain size and shape, quality and taste of the cooked rice. The main objective of this study was to determ...
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Introduction Among the rice diseases, rice blast caused by the pathogen Magnaporthe oryzae is a major threat to the global rice cultivation. This experiment was aimed at investigating the genotype by environment interaction effects on the severity of blast disease and variability of the advanced blast resistant rice lines using quantitative charact...
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Mushrooms are fleshy fungi valued globally for their nutritional and medical benefits. The study was conducted at Ebonyi State University Mushroom Center, Abakaliki, to determine an optimum level of limestone (CaCO 3) on the genotypes for maximum growth and yield. The experiment was carried out as a split-plot experiment in a completely randomized...
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This experiment was conducted to genotypically and phenotypically select new rice lines pyramided with blast and bacterial leaf blight disease resistance genes after a marker-assisted back-cross breeding programme. The interrelationship among agro-morphological characteristics and their effect on yield was also studied. The polymorphic functional a...
Article
Context The amelioration of low-quality cheap feed for livestock production has become a huge challenge faced by the livestock producers coupled with the illicit disposal of the straw, which causes global environmental nuisance through burning and health impairment. Aims The purpose of this study is to examine the efficacy of biological additives o...
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Water management is rapidly becoming one of the most pressing issues facing all countries in semi-arid and arid parts of the world. Global water consumption is predicted to increase by 50% in 2030, resulting in an acute water shortage. Presently, the agricultural sector consumes more than 70% of freshwater in most regions of the world, putting more...
Thesis
Full-text available
Studies on Genetic Variability, Heritability and Genetic Advance in Cucumber (Cucumis sativus L.) Cultivars Collected from China and Nigeria
Preprint
Full-text available
Mushrooms are eshy fungi valued globally for their nutritional and medical bene ts. The study was conducted at Ebonyi State University Mushroom Center, Abakaliki, with the aim to determine an optimum level of limestone (CaCO 3) on the genotypes for maximum growth and yield. The experiment was carried out as a split plot experiment in completely ran...
Article
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The effects of rice hull and different fertilizer sources on the growth and yield of carrot were evaluated at Abakaliki, in an asymmetrical 3 x 4 factorial experiment in three replications. Factor A was three rates of rice hull: 0ton ha-1 rice hull, 30ton ha-1 rice hull, and 60ton ha-1 rice hull whereas factor B was four fertilizer sources: 0 ferti...
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Eggplant is an essential vegetable crop that is rich in health-related compounds, and the content of these compounds can be increased through grafting. It was reported that grafting with vigorous wild relatives’ rootstocks can improve eggplant’s fruit quality. The study was conducted to investigate the fruit yield, composition and physicochemical t...
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The study was conducted in 2014 and 2015 cropping season at the Centre for agricultural research and extension (CARE) of Federal University of Technology, Owerri (FUTO) located at latitude 05 0 27‖ N and longitude 07 0 O2‖ E within the rain forest agro-ecology of Nigeria; to assess the tolerance level of maize accessions to natural field infection...
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Citation: Oladosu, Y.; Rafii, M.Y.; Arolu, F.; Chukwu, S.C.; Salisu, M.A.; Olaniyan, B.A.; Fagbohun, I.K.; Muftaudeen, T.K. Genetic Diversity and Utilization of Cultivated Abstract: Eggplant is the fifth economically most important vegetable in the Solanaceae family after tomato, potato, chili, and tobacco. Apart from the well-cultivated brinjal or...
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Sweet potato breeding in Africa, more especially in Nigeria, has mainly focused on improving productivity on farmers' fields and on fresh root consumption. In order to target the breeding program, the study was conducted to estimate the magnitude of genotype × environment interaction (G × E) and to select stable and high yielding sweet potato genot...
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Rice provides 76% calorie intake of mostly the Southeast Asian population and 21% food need. Improved lines were developed from three parents with bacteria leaf blight resistant, blast resistant and drought tolerance, respectively, whose devastating effects affect potential of rice yield. The improved lines were assessed for agro-morphological and...
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High kernel elongation (HKE) is one of the high-quality characteristics in rice. The objectives of this study were to determine the effects of ageing treatments, gene actions, and inheritance pattern of kernel elongation on cooking quality in two populations of rice and determine the path of influence and contribution of other traits to kernel elon...
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Abstract: Specialty fragrant rice is sold at a premium price in both local and international trade because of its superior grain qualities. In this research, 40 advanced fragrant rice accessions were evaluated in different environments. The primary objective was to identify genotypes with high grain yield and high stability using multivariate (GGE...
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This study was conducted to assess the Elaeidobius kamerunicus (EK) population density among the biparental dura × pisifera hybrids’ palms on deep peat-soil. Twenty-four hybrids derived from 10 genetic sources were used. Variance analysis showed that the EK population density varies between different oil palm hybrids, with a more noticeable variati...
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Grafting is regarded as an integral component of sustainable vegetable production. It is important in the management of soil-borne diseases, and reports suggest that grafting with viable rootstocks can enhance crop growth and yield. This research was conducted using splices and cleft grafting techniques to investigate graft compatibility among vari...
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The most vital aspect of marker-assisted backcross breeding is the recurrent parent genome recovery. This enables the selection of only parents with recovered recipient/recurrent parent genome in addition to the targeted genes. The recurrent parent genome recovery (RPGR) ensures that non-desirable genomic segments are removed while the gene of inte...
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Cucumber is an important vegetable crop but has received insufficient breeding attention. The objectives of this work were to assess the genetic variability among the collected cultivars and estimate heritability and genetic advance to enhance selection for genetic improvement of Cucumber. The experimental materials comprised four cultivars from Ni...
Article
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Bacterial leaf blight (BLB) and blast are among the most destructive diseases of rice. In order to develop new varieties that can resist various races of the pathogens Xanthomonas oryzae pv. oryzae (Xoo) and Magnaporthe oryzae, which cause these two diseases, respectively, it is important to identify suitable markers and a marker-aided selection st...
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Exploring the genetic aspects of germplasm using genotypic and phenotypic analysis is more reliable for the development of rice varieties that could lead to the attainment of food security. This is because genetic variations provide a space for recombinants, which is an important factor in new varietal development. This study was conducted to evalu...
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Multi-environmental yield trial is very vital in assessing newly developed rice lines for its adaptability and stability across environments especially prior to release of the newly developed variety for commercial cultivation. The growth performance and phenotypic variability of these genotypes are the combination of environment, genotype and geno...
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Currently, the global agricultural system is focused on a limited number of crop species, thereby presenting a threat to food security and supply, especially with predicted global climate change conditions. The importance of 'underutilized' crop species in meeting the world's demand for food has been duly recognized by research communities, governm...
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Flooding or submergence is one of the major environmental stressors affecting many man-made and natural ecosystems worldwide. The increase in the frequency and duration of heavy rainfall due to climate change has negatively affected plant growth and development, which eventually causes the death of plants if it persists for days. Most crops, especi...
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Bacterial leaf blight caused by Xanthomonas oryzae pv oryzae (Xoo) and blast caused by Magnaporthe oryzae are major diseases responsible for significant yield loss in rice production across all rice growing regions. Host plant resistance has been advocated as a sustainable means of guarding against the diseases. This experiment was conducted with t...
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Marker-assisted backcross (MABC) is a breeding technique used to develop improved varieties by transferring a gene or QTL into the genome background of an elite variety after 2-3 generations. It is an advanced way of overcoming challenges facing conventional backcross methods as it speeds up the recurrent parent genome recovery (RPG). In order to d...
Article
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Marker-assisted backcross (MABC) is a breeding technique used to develop improved varieties by transferring a gene or QTL into the genome background of an elite variety after 2-3 generations. It is an advanced way of overcoming challenges facing conventional backcross methods as it speeds up the recurrent parent genome recovery (RPG). In order to d...
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The study was aimed at sourcing and characterizing genotypes from different parts of Ebonyi State for use in future maize breeding. Therefore, conscious expeditions were made to the old 13 local government areas (LGAs) of Ebonyi State (Abakaliki, Afikpo North, Afikpo South, Ebonyi, Ezza North, Ezza South, Ikwo, Ishielu, Ivo, Ohaozara, Ohaukwu and O...
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Drought is the leading threat to agricultural food production, especially in the cultivation of rice, a semi-aquatic plant. Drought tolerance is a complex quantitative trait with a complicated phenotype that affects different developmental stages in plants. The level of susceptibility or tolerance of rice to several drought conditions is coordinate...
Article
Full-text available
Breeding for disease resistant varieties remains very effective and economical in controlling the bacterial leaf blight (BLB) of rice. Breeders have played a major role in developing resistant rice varieties against the BLB infection which has been adjudged to be a major disease causing significant yield reduction in rice. It would be difficult to...
Article
Full-text available
Marker-assisted selection and gene pyramiding are very important breeding strategies for conferring broad spectrum and durable resistance against diseases causing yield loss in rice. One such disease causing major set backs in rice production is bacterial leaf blight (BLB) caused by the pathogen Xanthomonas oryzae pv. oryzae. Molecular markers are...
Article
Full-text available
Breeding for disease resistant varieties remains very effective and economical in controlling the bacterial leaf blight (BLB) of rice. Breeders have played a major role in developing resistant rice varieties against the BLB infection which has been adjudged to be a major disease causing significant yield reduction in rice. It would be difficult to...
Article
Full-text available
The associations among yield-related traits and the pattern of influence on rice grain yield were investigated. This evaluation is important to determine the direct and indirect effects of various traits on yield to determine selection criteria for higher grain yield. Fifteen rice genotypes were evaluated under tropical condition at five locations...
Article
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Studies were carried out to determine effects of spacing and NPK 20:10:10 fertilizer on the growth and yield of okra (Abelmoschus esculentus L. (Moench)) in 2015 and 2016 in the Teaching and Research Farm, Department of Agronomy, Cross River University of Technology, Faculty of Agriculture and Forestry, Obubra, Cross River State, Nigeria. Experimen...
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Conscious expedition was carried out to different parts of Nigeria to collect maize genotypes with wide variability. The genotypes were coded Gt1 to Gt71 and were first planted in ear-to-row progeny fashion according to their numbers on May 18, 2013 on a well pulverized flat plot.In order to have a well-organized and streamlined maize research prog...
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The seventy one (71) genotypes were subjected to a cycle of phenotypic recurrent selection. After the original cycle of the phenotypic recurrent selection method, they had the following agronomic and chemical characteristics: 190.9cm for plant height, ear height of 88.1cm, tassel number plant of 32.9, ear number 1 plant of 2.0, 54 days for the numb...
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Eight cowpea (Vignaunguiculata L. Walp) genotypes under improvement were screened for their efficacy against major insect pests of cowpea in southeastern agroecology of Nigeria in 2011 and 2012 cropping seasons at the Abia State University research farm. Results of the study indicate significant variations amongst the genotypes for the agronomic an...
Article
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The experiment was conducted at the Department of Crop Production and Landscape Management Plant house. Effects of organic and inorganic manures on the growth and yield of Telfairia occidentalis were evaluated. The experiment was laid out in a Completely Randomized Design with four replications. Each replicate comprised four treatments (poultry, go...

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