Innovative Approaches for Agri-Diagnostics Support Varietal Development and Crop Management

A special issue of Agriculture (ISSN 2077-0472). This special issue belongs to the section "Crop Protection, Diseases, Pests and Weeds".

Deadline for manuscript submissions: closed (31 December 2020) | Viewed by 3439

Special Issue Editors


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Guest Editor
School of Natural and Environmental Sciences, Newcastle University, Newcastle upon Tyne NE1 7RU, UK
Interests: high throughput tools; phenotyping; phenomics; plant Breeding; agri-diagnostics; QTL and association studies; crop monitoring

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Guest Editor
School of Natural and Environmental Sciences, Newcastle University, Newcastle upon Tyne NE1 7RU, UK
Interests: diagnostics; plant disease; virology; sequencing; PCR; LAMP

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Guest Editor
School of Biosciences, University of Birmingham, Edgbaston, Birmingham B15 2TT, UK
Interests: genetics; genomics; breeding; polyploidy; quantitative trait loci; association studies

Special Issue Information

Dear Colleagues,

Timely and accurate identification and forecasting can lead to early control of diseases, thereby avoiding devastating losses of crops. Traditional farming systems assume that parameters in crops are homogeneous, resulting in practices such as blanket spraying, which does not consider the existing disease management situation. This is influenced through visual identification, mainly when the disease is identified after development of symptoms. Recent advancements in precision tools in agriculture help recognise the spatial and temporal variability within management systems. By combining monitoring and decision support systems (DSS), they allow specific varietal use and management of crops. Similarly, these sensing tools and accompanied modelling approaches are also helping in high throughput phenotyping for generating varieties for disease resistance. Thus, close attention to agri-diagnostics can aid in decision making for management strategies from multiple angles. Disease identification and new breeding tools which help in linking genetics and breeding varieties can aid in alterations to crop varieties grown on the farm; a resistant variety to an ever-present disease and this combined approach will understandably minimise outbreaks. In this Special Issue, we aim to bring together different disciplines focused on precision disease management and the contrasting ends of the high throughput phenotyping pipeline for understanding genetic disease control. The contributions should cover the following aspects of the disease assessment and sensing pipeline and their influence on breeding methodologies and varietal development:

  • Agri-diagnosis techniques for early diagnosis and detection of disease
  • Disease monitoring systems and disease phenotyping systems
  • Tools and techniques for disease phenotyping and monitoring at canopy, field, farm, and regional scales
  • Molecular and high throughput imaging tools and approaches for disease quantification
  • Linking high throughput disease phenotyping with genetics and genotyping for disease resistant crop production
  • Precision support systems to help farmers make better decisions concerning crop disease management
  • Crop modelling approaches linked with disease evaluation, future warnings, and decision support systems.

Dr. Ankush Prashar
Prof. Neil Boonham
Dr. Lindsey Jane Compton
Guest Editors

Manuscript Submission Information

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Keywords

  • Agri-diagnostics
  • High throughput phenotyping
  • Genomics
  • Precision Agriculture
  • Disease monitoring
  • Linkage analysis
  • Phenomics
  • Imaging tools and resources
  • Decision support systems
  • Molecular tools

Published Papers (1 paper)

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Research

11 pages, 1077 KiB  
Article
Validation of Diagnostic Markers for Streak Virus Disease Resistance in Maize
by Solomon Shibeshi Sime, Abebe Menkir, Victor O. Adetimirin, Melaku Gedil and P. Lava Kumar
Agriculture 2021, 11(2), 130; https://doi.org/10.3390/agriculture11020130 - 5 Feb 2021
Cited by 7 | Viewed by 2818
Abstract
Maize streak virus (MSV) is responsible for streak disease of maize and poses a serious threat to maize production in sub-Saharan Africa. Polygenic resistance to MSV has become an essential requirement in modern maize cultivars to mitigate yield losses. Many single nucleotide polymorphism [...] Read more.
Maize streak virus (MSV) is responsible for streak disease of maize and poses a serious threat to maize production in sub-Saharan Africa. Polygenic resistance to MSV has become an essential requirement in modern maize cultivars to mitigate yield losses. Many single nucleotide polymorphism (SNP) markers linked to putative MSV resistance loci have been identified for use in forward breeding. This study aimed to validate, using the high-throughput kompetitive allele specific PCR (KASP) assay, the diagnostic ability of the three SNP markers linked to the loci for the Msv1 resistance trait in 151 early generations inbred lines with diverse genetic backgrounds, together with nine MSV-resistant elite lines and a susceptible check (cv. Pool-16). The phenotypic responses were determined by MSV inoculation using viruliferous leafhoppers (Cicadulina triangular) under screenhouse conditions. Based on an established MSV disease rating system, the maize lines were categorized into resistant, moderately resistant, susceptible, and highly susceptible. The three SNPs associated with MSV resistance were detected in 133 lines, which were categorized as resistant (54), moderately resistant (76), and susceptible (1). The 18 early generation lines without these SNPs were classified as moderately resistant (10), susceptible (5), and highly susceptible (3). This study confirms the strong association of SNPs with MSV resistance and their usefulness for forward breeding in maize while emphasizing the need to identify additional markers to screen lines for MSV resistance without any ambiguity. Full article
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