Identification of Sugar Crop Germplasm Resources and Disease Resistance

A special issue of Agriculture (ISSN 2077-0472). This special issue belongs to the section "Genotype Evaluation and Breeding".

Deadline for manuscript submissions: closed (5 November 2023) | Viewed by 1783

Special Issue Editor


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Guest Editor
USDA-ARS, Sugarcane Field Station, Canal Point, FL 33438, USA
Interests: sugarcane; disease resistance; cultivar development; molecular markers for disease resistance; screening germplasm for disease resistance

Special Issue Information

Dear Colleagues,

Sugarcane is an economically important crop worldwide for sugar production. It grows in tropical and subtropical areas. Byproducts of sugar production are also used for ethanol production, feeding livestock, fertilizer, etc. The cultivation of sugarcane is challenged by pathogens, pests, and environmental stresses. Recently, several sugarcane pathogens and pests have been emerging and re-emerging in sugarcane-producing areas. Improving crops through breeding is a sustainable and environmentally friendly method for managing biotic and abiotic stresses and minimizing losses. The success of breeding programs depends on identifying, maintaining, characterizing, and utilizing genetically diverse germplasm resources. Identification of germplasm resources is a foremost requirement for breeding plants for any desired trait, including disease resistance.

This Special Issue focuses on the identification of sugarcane germplasm resources and disease resistance for the changing needs of sugarcane production due to climate change. The issue welcomes original research and reviews covering all related topics, including phenotypic and genotypic identification and evaluation of germplasm resources and disease resistance; improvement of crop genetics for disease resistance by conventional and modern technology; germplasm screening and pathogen detection methods. The issue welcomes original research and reviews covering all related topics, including phenotypic and genotypic identification and evaluation of germplasm resources, genome editing for disease, identification of molecular bases of resistance, and germplasm screening and pathogen detection methods.

Dr. Sushma Sood
Guest Editor

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Keywords

  • germplasm
  • resistance
  • disease
  • sugarcane
  • breeding
  • selection
  • molecular markers
  • transformation
  • screening
  • genotype
  • phenotype

Published Papers (1 paper)

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Research

21 pages, 2030 KiB  
Article
Selection of New Sugarcane Genotypes for Sandy Soils in Florida with Enhanced Sucrose Content
by Orlando Coto Arbelo, Aliya Momotaz, Hardev S. Sandhu, Sushma Sood, Wayne Davidson, Miguel Baltazar and Duli Zhao
Agriculture 2023, 13(5), 1079; https://doi.org/10.3390/agriculture13051079 - 18 May 2023
Cited by 4 | Viewed by 1435
Abstract
The selection of sugarcane genotypes with high sucrose content and good ratooning ability (RA) is an important objective of the Canal Point breeding program to improve the current profitability levels of the Florida sugarcane industry. In this study, thirteen test sugarcane genotypes and [...] Read more.
The selection of sugarcane genotypes with high sucrose content and good ratooning ability (RA) is an important objective of the Canal Point breeding program to improve the current profitability levels of the Florida sugarcane industry. In this study, thirteen test sugarcane genotypes and three checks were evaluated in three sand locations, Pahokee Produce Inc. (PP), Townsite farm (TS), and Lykes Brothers Inc. (PF), during three crop cycles (plant cane, first ratoon, and second ratoon). Multi-environment best linear unbiased predictors (BLUPs) were highly significant for commercially recoverable sucrose (CRS) and not significant for cane yield (CY) among genotypes. The ANOVA based on the RA values produced significant genotypic effects but a reduced RA diversity among the genotypes. The simultaneous selection for BLUP_CRS, BLUP_CY yield, and RA identified CP 14-4165 and CP 13-2340 as the most outstanding genotypes. The BLUP_GGE biplots method showed that the PP location was the most discriminative for BLUP_CY, whereas the TS was the ideal location. For BLUP_CRS, the three locations had similar abilities to discriminate genotypes and were positively and strongly correlated. The which-won-where graph indicated that CP 13-2340 showed the highest BLUP_CRS levels in TS and PP locations, while CP 14-4165 and CP 14-4588 were the top genotypes in the PF location. The results suggest that selecting genotypes with high CRS values is possible without compromising the genotype discrimination for CY. CP 14-4165 and CP 13-2340 are resistant to most diseases and genetically diverse. Full article
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