Samuel Chibuike Chukwu

ORCID: 0000-0002-8041-8479
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Research Areas
  • Rice Cultivation and Yield Improvement
  • Genetics and Plant Breeding
  • GABA and Rice Research
  • Genetic Mapping and Diversity in Plants and Animals
  • Plant Genetic and Mutation Studies
  • Plant Pathogenic Bacteria Studies
  • Agricultural Practices and Plant Genetics
  • Plant-Microbe Interactions and Immunity
  • Cocoa and Sweet Potato Agronomy
  • Banana Cultivation and Research
  • Agricultural pest management studies
  • Genetic and Environmental Crop Studies
  • Plant Virus Research Studies
  • Nematode management and characterization studies
  • Plant Pathogens and Fungal Diseases
  • Fungal Biology and Applications
  • Plant Disease Resistance and Genetics
  • Plant tissue culture and regeneration
  • Advances in Cucurbitaceae Research
  • Legume Nitrogen Fixing Symbiosis
  • Food composition and properties
  • Crop Yield and Soil Fertility
  • Oil Palm Production and Sustainability
  • Plant Physiology and Cultivation Studies
  • Ginger and Zingiberaceae research

Universiti Putra Malaysia
2018-2024

Ebonyi State University
2019-2024

The associations among yield-related traits and the pattern of influence on rice grain yield were investigated. This evaluation is important to determine direct indirect effects various selection criteria for higher yield. Fifteen genotypes evaluated under tropical condition at five locations in two planting seasons. experiment was laid out a randomized complete block design with three replications across locations. Data collected vegetative components traits. pooled data based analysis...

10.1155/2018/8936767 article EN cc-by BioMed Research International 2018-07-15

Flooding or submergence is one of the major environmental stressors affecting many man-made and natural ecosystems worldwide. The increase in frequency duration heavy rainfall due to climate change has negatively affected plant growth development, which eventually causes death plants if it persists for days. Most crops, especially rice, being a semi-aquatic plant, are greatly by flooding, leading yield losses each year. Genetic variability response flooding includes quiescence scheme, allows...

10.3390/su12041632 article EN Sustainability 2020-02-21

Marker-assisted selection and gene pyramiding are very important breeding strategies for conferring broad spectrum durable resistance against diseases causing yield loss in rice. One such disease major set backs rice production is bacterial leaf blight (BLB) caused by the pathogen Xanthomonas oryzae pv. oryzae. Molecular markers essential both marker-assisted of genes, hence, many molecular marker techniques have already been developed. Presently, most commonly used ones DNA-based also known...

10.1080/13102818.2019.1584054 article EN cc-by Biotechnology & Biotechnological Equipment 2019-01-01

Currently, the global agricultural system is focused on a limited number of crop species, thereby presenting threat to food security and supply, especially with predicted climate change conditions. The importance ‘underutilized’ species in meeting world’s demand for has been duly recognized by research communities, governments policy makers worldwide. development underutilized crops, their vast genetic resources beneficial traits, may be useful step towards solving challenges offering...

10.3390/agronomy10060766 article EN cc-by Agronomy 2020-05-27

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10.1080/13102818.2020.1804451 article EN cc-by Biotechnology & Biotechnological Equipment 2020-01-01

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 accessions were evaluated different environments. The primary objective was to identify genotypes with high yield stability using multivariate (GGE biplot) univariate analysis (regression slope, deviation from regression, Shukla’s variance, Wricke’s ecovalence, Kang’s statistic). field experiment trials laid randomized complete block...

10.3390/su13084555 article EN Sustainability 2021-04-20

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 variety commercial cultivation. The growth performance phenotypic variability these genotypes are combination environment, genotype by environment (G×E) interaction factors. Thus, evaluation creates an opportunity effective selection superior genotypes. objectives this study were evaluate blast resistant varied...

10.3390/agronomy10081098 article EN cc-by Agronomy 2020-07-29

Sweet potato breeding in Africa, more especially Nigeria, has mainly focused on improving productivity farmers' fields and fresh root consumption. In order to target the program, study was conducted estimate magnitude of genotype × environment interaction (G E) select stable high yielding sweet genotypes for yield Cylas severity two locations, identify most discriminating representative test environments Nigeria. The 41 were evaluated across diverse using a randomized complete block design...

10.3389/fagro.2021.665564 article EN cc-by Frontiers in Agronomy 2021-06-04

Bacterial leaf blight caused by Xanthomonas oryzae pv (Xoo) and blast Magnaporthe are major diseases responsible for significant yield loss in rice production across all growing regions. Host plant resistance has been advocated as a sustainable means of guarding against the diseases. This experiment was conducted with aim to introgress multiple genes bacterial through marker-assisted backcross breeding. Two dominant (Xa4 Xa21) two recessive (xa5 xa13) Xoo were introgressed into high yielding...

10.3390/agronomy10010042 article EN cc-by Agronomy 2019-12-26

The most vital aspect of marker-assisted backcross breeding is the recurrent parent genome recovery. This enables selection only parents with recovered recipient/recurrent in addition to targeted genes. recovery (RPGR) ensures that non-desirable genomic segments are removed while gene interest sustained recombined progenies without further segregations. work was aimed at quantifying RPGR populations introgression bacterial leaf blight resistance Putra-1, a Malaysian elite variety, high...

10.3390/plants9111411 article EN cc-by Plants 2020-10-22

Grafting is regarded as an integral component of sustainable vegetable production. It important in the management soil-borne diseases, and reports suggest that grafting with viable rootstocks can enhance crop growth yield. This research was conducted using splices cleft techniques to investigate graft compatibility among varieties high yielding eggplant scion (MCV1, MCV2, CCV1, CCV2, CCV3, NCV, TCV) grafted onto wild (MWR, BWR, TWR) study their morphophysiological yield characteristics. High...

10.3390/plants9111583 article EN cc-by Plants 2020-11-15

Abstract West Africa is a dry region and drought tolerant sweetpotato cultivar was not reported. The objective of this study to develop higher yielding hybrids following accelerated breeding scheme (ABS), G × E interaction. During advanced yield trial, the assessment clones conducted in six locations: four Niger two Nigeria. Data were collected on storage root (SRY), harvest index (HI) matter content (DMC). Twenty-three evaluated under irrigation. Terminal imposed. SAS GenStat softwares used...

10.1038/s41598-023-33593-2 article EN cc-by Scientific Reports 2023-04-20

This experiment was conducted to genotypically and phenotypically select new rice lines pyramided with blast bacterial leaf blight disease resistance genes after a marker-assisted backcross breeding programme. The inter-relationship among agro-morphological characteristics their effect on yield also studied. polymorphic functional microsatellite markers Xa21FR pTA248 (Xa21), Xa13prom (xa13), RM21 (xa5), MP (Xa4), RM6836 (Pi2, Pi9 & Piz) RM8225 (Piz) were first confirmed for the target...

10.3390/d14100812 article EN cc-by Diversity 2022-09-28

Abstract This experiment was conducted with the aim of introgressing multiple resistance genes against bacterial leaf blight (BLB) and blast diseases through marker-assisted backcross breeding. Two dominant ( Xa4 Xa21 ) two recessive xa5 xa13 BLB were introgressed into a Malaysian elite rice variety Putra-1 genetic background three Piz, Pi2 Pi9 high yielding. Eight polymorphic tightly linked functional SSR markers used for foreground selection target genes. 79 in selection. The plants...

10.1101/750216 preprint EN cc-by bioRxiv (Cold Spring Harbor Laboratory) 2019-08-28

Abstract Introduction Sweetpotato is a vegetatively propagated, highly heterozygous and outcrossing crop. Genetic improvement of sweetpotato complicated because the hexaploid nature The objective this study was to assess genetic compatibility between accessions collected from Niger Nigeria select best parents for next hybridisation block develop new farmer varieties. Materials Methods experiment conducted at field department crop production landscape management, Ebonyi State University,...

10.1002/sae2.12044 article EN cc-by Journal of Sustainable Agriculture and Environment 2023-05-04

Abstract 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 maximum growth yield. experiment carried out as a split-plot in completely randomized design (CRD) with use Oyster mushroom variety. two (GI GII) were placed whole plot while sub-plot which consisted five rates CaCO (Og,5 g, 10 15 g 20 g). Sawdust...

10.1038/s41598-022-16833-9 article EN cc-by Scientific Reports 2022-11-09

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 pathogens Xanthomonas oryzae pv. (Xoo) Magnaporthe oryzae, which cause these two diseases, respectively, it is important identify suitable markers a marker-aided selection strategy. Seventeen foreground microsatellites associated with resistance against BLB were screened for polymorphism possible adoption in breeding program resistant cultivar...

10.1080/13102818.2020.1809520 article EN cc-by Biotechnology & Biotechnological Equipment 2020-01-01
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