A Simple Method for Assessing Severity of Common Root Rot on Barley

Arabi, M. I. E.; Jawhar, M.

doi:10.5423/ppj.oa.09.2013.0086

Cited by 3 publications

(2 citation statements)

References 11 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…However, the evaluation of the effect of the fungus on other parameters, such as emergence and biomass, highlighted the greater tolerance observed in some crops, particularly barley and wheat, relative to others. While disease severity is often used as the primary measure of fungal pathogenicity [60,61] or the host range [28], the effects of a pathogen on plant biomass, plant heights, and seedling emergences have also been explored in several studies [34,41,62]. Notable reductions in dry weight (>50%) were documented for Allium spp.…”

Section: Discussionmentioning

confidence: 99%

The Host Range of Fusarium proliferatum in Western Canada

Yu,

Hwang,

Strelkov

2024

Pathogens

View full text Add to dashboard Cite

Fusarium proliferatum is associated with the root rot of many plant species, but knowledge of its impact on western Canadian field crops is limited. This study assessed the host range of this fungus and its effect on plant emergence, plant height, and shoot and root dry weights in repeated greenhouse experiments with wheat, barley, faba beans, peas, lentils, canola, lupine, and soybeans. Infection was confirmed via PCR, and principal component analysis determined the utility of different parameters in assessing host responses. All crops were at least partly susceptible, developing mild to severe disease at the seedling and adult stages, and showing significant reductions in growth. In general, the barley and wheat demonstrated higher tolerances to infection, followed by the faba bean and the pea. The soybean, canola, lupine, and lentil were most susceptible. The canola and the soybean were particularly vulnerable to F. proliferatum at the pre-emergence stage, while infection greatly reduced the lentil’s biomass. Reductions in the barley’s emergence and other growth parameters, however, occurred only under a high inoculum concentration. Variability in root rot severity among cultivars of the same crop indicated some diversity in host reactions within species. Nonetheless, the absence of fully-resistant crops may pose challenges in managing F. proliferatum in western Canadian cropping systems.

show abstract

Section: Discussionmentioning

confidence: 99%

The Host Range of Fusarium proliferatum in Western Canada

Yu,

Hwang,

Strelkov

2024

Pathogens

View full text Add to dashboard Cite

show abstract

“…Saad et al (2022) assessed the impact of CRR in the field using plant height, stem number, dry weight of plants and visual discolouration ratings on subcrown internode, main stem, primary stems and secondary stems. Additionally, CRR severity has been calculated by combining the incidence of infection and the extent of discolouration to determine a disease rating, where incidence is the number of subcrown internodes with nonzero severity divided by the total number of plants sampled (Arabi et al, 2015; Mathre et al, 2003).…”

Section: Crr Disease Assessmentmentioning

confidence: 99%

A review on common root rot of wheat and barley in Australia

2023

View full text Add to dashboard Cite

Common root rot (CRR) caused by the soilborne pathogen Bipolaris sorokiniana (teleomorph Cochliobolus sativus) is becoming increasingly prevalent worldwide. Identification of CRR is difficult and time‐consuming for human assessors due to the non‐distinctive above‐ground symptoms, with browning of subcrown internodes and roots the most distinguishing symptom of infection. CRR disease has been recognized as a significant disease for cereal crops in many countries. In 2009, CRR in Australia was estimated to cause $30 million average annual yield loss for wheat and $13 million for barley. Recent evidence indicates CRR may be more prevalent than expected in Australian wheat cropping areas due to lack of research on this disease. Low levels of B. sorokiniana survive in the soil for up to 10 years and attack plants at early stages of growth. Therefore, mitigating CRR in wheat and barley may not be practical at the late stages of infection due to lack of effective methods; however, early detection might be viable to alleviate the impact of this disease. A comprehensive overview of CRR caused by B. sorokiniana, including disease background, worldwide economic losses, management methods, potential CRR detection using multispectral and hyperspectral sensors and the research focus over the past 50 years is provided in this article. This review paper is expected to provide thorough supplemental information for current studies about CRR and proposes recommendations for whole‐of‐field disease scouting methods to farmers, enabling reduced time and cost for CRR management and increasing wheat and barley production worldwide.

show abstract