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Horticulturae
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Mitigating Soil-Borne Diseases in Horticultural Crops: Current Challenges and Management...
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Mitigating Soil-Borne Diseases in Horticultural Crops: Current Challenges and Management Strategies

A special issue of Horticulturae (ISSN 2311-7524). This special issue belongs to the section "Plant Pathology and Disease Management (PPDM)".

Deadline for manuscript submissions: 15 December 2024 | Viewed by 4612

Special Issue Editors

Dr. Liangliang Liu

E-Mail Website
Guest Editor
College of Life Science and Environmental Resources, Yichun University, Yichun 336000, China
Interests: soil-borne disease; reductive soil disinfestation; soil microbial community; soil function; plant-soil feedback; interaction between soil biotic and abiotic factors
Dr. Linkun Wu

E-Mail Website
Guest Editor
College of JunCao Science and Ecology, Fujian Agriculture and Forestry University, Fuzhou 350002, China
Interests: plant microbiome; replant disease; plant-soil feedback; rhizosphere ecology; bioinformatics
Special Issues, Collections and Topics in MDPI journals
Dr. Xinqi Huang

E-Mail Website
Guest Editor
School of Geography Science, Nanjing Normal University, Nanjing 210023, China
Interests: soil pathogens; soil microbiology; sustainable agriculture; crop production; microbial molecular biology; organic farming

Special Issue Information

Dear Colleagues,

This Special Issue, "Mitigating Soil-Borne Disease in Horticultural Crops: Current Challenges and Management Strategies", aims to address the pressing issue of soil-borne pathogens affecting horticultural crops. These pathogens, including bacteria, fungi, and nematodes, have a detrimental impact on crop yield and can lead to significant economic losses.

In recent times, soil-borne diseases have become a major obstacle to the sustainable production of horticultural crops. Therefore, finding effective solutions to control the occurrence of these diseases has become an interdisciplinary field of research, involving soil science, biology, ecology, chemistry, physics, and plant nutrition.

The objective of this Special Issue is to showcase innovative studies, methods, and techniques that have successfully tackled soil-borne disease problems in horticultural crops. This may include the use of reductive soil disinfestation, biological control, new chemical fumigation, crop rotation, resistance breeding, and any other innovative approaches that have improved the efficiency of disease suppression in the soil. Additionally, theoretical research related to the impact of soil–plant system feedback mechanisms on soil-borne disease occurrence and the interactions between disease occurrence and changes in biotic or abiotic environmental factors is also welcome.

Overall, this Special Issue aims to contribute to the development of sustainable cultivation practices for horticultural crops by presenting the latest advancements in the management of soil-borne diseases. By sharing successful strategies and exploring theoretical aspects of disease occurrence, it is hoped that this collection of research will help mitigate the challenges faced by the horticultural industry and ensure the long-term productivity and economic viability of horticultural crops.

Dr. Liangliang Liu
Dr. Linkun Wu
Dr. Xinqi Huang
Guest Editors

Manuscript Submission Information

Manuscripts should be submitted online at www.mdpi.com by registering and logging in to this website. Once you are registered, click here to go to the submission form. Manuscripts can be submitted until the deadline. All submissions that pass pre-check are peer-reviewed. Accepted papers will be published continuously in the journal (as soon as accepted) and will be listed together on the special issue website. Research articles, review articles as well as short communications are invited. For planned papers, a title and short abstract (about 100 words) can be sent to the Editorial Office for announcement on this website.

Submitted manuscripts should not have been published previously, nor be under consideration for publication elsewhere (except conference proceedings papers). All manuscripts are thoroughly refereed through a single-blind peer-review process. A guide for authors and other relevant information for submission of manuscripts is available on the Instructions for Authors page. Horticulturae is an international peer-reviewed open access monthly journal published by MDPI.

Please visit the Instructions for Authors page before submitting a manuscript. The Article Processing Charge (APC) for publication in this open access journal is 2200 CHF (Swiss Francs). Submitted papers should be well formatted and use good English. Authors may use MDPI's English editing service prior to publication or during author revisions.

Keywords

  • plant–soil ecosystem
  • soil-borne pathogens
  • soil environmental factors
  • biological control
  • sustainable cultivation
  • soil health

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Published Papers (3 papers)

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Research

14 pages, 2534 KiB  
Article
Investigating Changes in the Soil Fungal Community Structure, Functions, and Network Stability with Prolonged Grafted Watermelon Cultivation
by Xing Zhou, Bingyu Guo, Ruyi Zhang, Linfei Zhou, Xinqi Huang and Liangliang Liu
Horticulturae 2024, 10(9), 971; https://doi.org/10.3390/horticulturae10090971 - 12 Sep 2024
Viewed by 874
Abstract
Grafting is a commonly employed technique for enhancing the yield and improving resistance to biotic and abiotic stress of cultivated plants. However, whether and how continuous cropping of grafted plants affects the composition, function, and stability of the soil fungal community remain poorly [...] Read more.
Grafting is a commonly employed technique for enhancing the yield and improving resistance to biotic and abiotic stress of cultivated plants. However, whether and how continuous cropping of grafted plants affects the composition, function, and stability of the soil fungal community remain poorly understood. In this study, we investigated the effects of planting years (including 0 years (Y0), 2 years (Y2), 10 years (Y10), and 18 years (Y18)) of grafted watermelon on the structure and functional composition of the soil fungal community under field conditions. Compared with the Y0 soil, the Y2, Y10, and Y18 soils exhibited a significant (p < 0.05) decrease in the richness, Shannon index, and evenness (56.8–65.7%, 22.4–46.3%, and 3.8–38.1%, respectively) in the alpha diversity of the fungal community, but a significant (p < 0.05) increase (0.4–1.3 times) in the fungal population. The structure, core and unique microbiomes, and functional composition of the soil fungal community differed significantly across different planting years. The Y2, Y10, and Y18 soils exhibited significant increases (p < 0.05) in relative abundances of Ascomycota and saprophytic fungi and the proportion of core OTUs, but significantly decreased abundances of Basidiomycota, Chytridiomycota, Rozellomycota, pathogenic and symbiotic fungi, and the proportion of unique OTUs when compared with the Y0 soil. The types of potential plant pathogens and their relative abundance were also significantly increased alongside the planting years (among Y2, Y10, and Y18 soils). Furthermore, the results indicated that the continuous cropping of grafted watermelon altered the co-occurrence networks, leading to a reduction in the complexity and stability of the fungal community networks. Overall, our findings suggest that continuous cropping of grafted watermelon may adversely affect the structure and functioning of soil microbial community, eventually decreasing the effectiveness of grafting technology disease control. Full article
(This article belongs to the Special Issue Mitigating Soil-Borne Diseases in Horticultural Crops: Current Challenges and Management Strategies)
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12 pages, 7088 KiB  
Article
Association of Plant-Parasitic Nematodes and Soil Physicochemical Properties in Tomatoes in Turfloop, Limpopo Province, South Africa
by Ebrahim Shokoohi and Peter Masoko
Horticulturae 2024, 10(4), 328; https://doi.org/10.3390/horticulturae10040328 - 28 Mar 2024
Cited by 1 | Viewed by 1361
Abstract
Turfloop constitutes an area in Mankweng, situated in the Limpopo Province of South Africa, where several villages are home to smallholder farmers who specialize in vegetable farming. Among the most crucial crops cultivated in this region is tomato, a fruit that has gained [...] Read more.
Turfloop constitutes an area in Mankweng, situated in the Limpopo Province of South Africa, where several villages are home to smallholder farmers who specialize in vegetable farming. Among the most crucial crops cultivated in this region is tomato, a fruit that has gained significant commercial importance due to its high demand and versatility in various culinary applications. To determine the relationship of plant-parasitic nematodes and soil physicochemical properties, soil samples were collected from tomato fields. Overall, our results showed that seven nematode genera were in the tomato fields. There was a significant positive correlation between the number of Meloidogyne and potassium (r = 0.903) and a negative correlation with Na (r = −0.684). In contrast, there was no association between the number of Meloidogyne spp. and the pH and texture of the fields. The number of Criconema in the field was negatively correlated with pH (r = −0.732). Soil texture percentages, including clay (r = 0.744), sand (r = −0.744), and silt (r = 0.706), were only correlated with the number of Criconema. The number of dagger nematodes, Xiphinema, was only correlated negatively with NH4+ (r = −0.589) and positively with boron (B) (r = 0.779). None of the soil variables were correlated with the number of Pratylenchus. The principal component analysis (PCA) placed soil samples of tomatoes together, in which the number of Meloidogyne was not correlated to any soil sample site. In conclusion, plant-parasitic nematodes that were associated with tomatoes are of high economic importance as they can reduce the yield. Criconema was found to be sensitive to the soil’s physicochemical properties. In addition, Helicotylenchus was found in all soil samples. Our results suggest that the plant-parasitic nematodes in tomatoes have high diversity with the potential to reduce crop production. Full article
(This article belongs to the Special Issue Mitigating Soil-Borne Diseases in Horticultural Crops: Current Challenges and Management Strategies)
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12 pages, 4251 KiB  
Article
Efficient and Direct Identification of Ditylenchus destructor and D. dipsaci in Soil and Plant Tissues Using a Species-Specific PCR Assay
by Xu Han, Qing Chang, Youxian Xu, Pengjun Wang, Huixia Li, Yunqing Li, Yanshan Li, Wenkun Huang, Lingan Kong, Shiming Liu, Deliang Peng and Huan Peng
Horticulturae 2024, 10(3), 250; https://doi.org/10.3390/horticulturae10030250 - 5 Mar 2024
Viewed by 1457
Abstract
Ditylenchus destructor and D. dipsaci are important nematodes that have a significant economic impact on agronomic and horticultural plants worldwide. Microscopic observation alone may not distinguish between D. destructor and D. dipsaci. Accurate and rapid identification of these two species is essential [...] Read more.
Ditylenchus destructor and D. dipsaci are important nematodes that have a significant economic impact on agronomic and horticultural plants worldwide. Microscopic observation alone may not distinguish between D. destructor and D. dipsaci. Accurate and rapid identification of these two species is essential for effective pest management. In the present study, a species-specific PCR assay was developed to detect and differentiate D. destructor and D. dipsaci based on the rDNA-ITS sequences. The primers developed in this study can specifically amplify fragments of DNA from D. destructor and D. dipsaci in the target population, without amplifying DNA from other non-target nematodes within the genus Ditylenchus. The sensitivity test revealed that this procedure has the ability to detect single second-stage juveniles (J2) of D. dipsaci at a dilution of 1/128 and D. destructor at a dilution of 1/64. Additionally, it can detect genomic DNA (gDNA) at concentrations of 10 pg/µL for D. dipsaci and 1 ng/µL for D. destructor. These results align with previously reported results obtained through RPA and LAMP methods. Furthermore, the primers developed in this study for D. destructor not only were able to amplify six different haplotypes of nematodes but also successfully detected it in infested plant roots and soil samples, thereby shortening the time and reducing the number of steps required for detection. Thus, this assay, which does not necessitate taxonomic or morphological expertise, significantly enhances the diagnosis of D. destructor and D. dipsaci in infested fields. This advancement aids in the early control of these nematodes. Full article
(This article belongs to the Special Issue Mitigating Soil-Borne Diseases in Horticultural Crops: Current Challenges and Management Strategies)
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