Genetic Identification and Characterisation of Crop Agronomic Traits and Stress Resistance—2nd Edition

A special issue of Agronomy (ISSN 2073-4395). This special issue belongs to the section "Crop Breeding and Genetics".

Deadline for manuscript submissions: 31 October 2024 | Viewed by 962

Special Issue Editors


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NSW Department of Primary Industries, Orange Agricultural Institute, 1447, Forest Road, Orange, NSW 2800, Australia
Interests: plant genomics; bioinformatics; omics data analysis
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School of Science, Hawkesbury Institute for the Environment (HIE), Western Sydney University, Richmond, NSW 2753, Australia
Interests: halophytes; solute transport; plant physiology; molecular biology
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International Crops Research Institute for the Semi-Arid Tropics Patancheru, Hyderabad, Telangana 502324, India
Interests: plant biotechnology, metabolomics and proteomics
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Special Issue Information

Dear Colleagues,

With the increasing global human population, there is a continuous demand for food supply, and climate change scenarios pose an additional threat to agricultural production worldwide. Therefore, we rely on continuous genetic gains and genetically driven approaches for crop improvement. The identification of loci for agronomic traits and their genetic characterization are crucial for breeding new varieties. The introduction of new adaptive alleles in diverse genetic backgrounds helps to improve grain yield or develop newer crop varieties to balance supply and demand globally. The availability of large-scale genomic resources provides an opportunity to discover genetic and molecular mechanisms behind plant responses to different environmental stresses. Integrating various omics technologies into routine breeding pipelines will support the delivery of cultivars with robust yield and improved quality. In this Special Issue, we aim to bring together research papers and reviews on using plant genetic and genomic resources for enhancing key agronomic traits in the current plant breeding scenario.

Dr. Niharika Sharma
Dr. Jayakumar Bose
Dr. Kalenahalli N. Yogendra
Guest Editors

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Keywords

  • agronomic traits
  • crop improvement
  • breeding
  • abiotic/biotic stress
  • genetic characterisation

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Published Papers (1 paper)

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Research

22 pages, 3321 KiB  
Article
Characterization and Agronomic Evaluation of 25 Accessions of Chenopodium quinoa in the Peruvian Coastal Desert
by José Alania-Choque, Leander Gamiel Vásquez-Espinoza, Alberto Anculle-Arenas, José Luis Bustamente-Muñoz, Eric N. Jellen, Raymundo O. Gutiérrez-Rosales and Mayela Elizabeth Mayta-Anco
Agronomy 2024, 14(9), 1908; https://doi.org/10.3390/agronomy14091908 - 26 Aug 2024
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Abstract
Quinoa is a healthy food that possesses high levels of protein that is enriched for dietary essential amino acids. The crop is highly diverse and well-adapted to changing climatic conditions. In spite of being vulnerable to pests and diseases, the development of new [...] Read more.
Quinoa is a healthy food that possesses high levels of protein that is enriched for dietary essential amino acids. The crop is highly diverse and well-adapted to changing climatic conditions. In spite of being vulnerable to pests and diseases, the development of new resistant varieties is possible. Taking advantage of this genetic variability is crucial for breeding programs, especially to adapt quinoa to the shifting needs of producers. In this study, 25 Peruvian accessions and two commercial varieties were characterized and agronomically evaluated in the Peruvian Pacific desert. Specific methodologies and descriptors of existing crops were used, analyzing a total of 24 quantitative and 23 qualitative variables with 15 repetitions per accession. The data were processed using descriptive statistics and a multivariate analysis. The results showed a high variability in morphological characteristics, with an area under the disease progress curve (AUDPC) of the presence of mildew between 529 and 1725, highlighting ACC06 with a lower severity of mildew. The percentage of saponins varied between 0.04 and 0.21 percent, with ACC06 being the one with the lowest percentage. Regarding the crop yield, it ranged between 0.35 and 8.80 t ha−1, highlighting the high-yielding accessions ACC55 and ACC14. These results were promising for the improvement of quinoa yield in the production conditions of the Peruvian Pacific desert. Full article
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