A simple method based on laboratory inoculum and field inoculum for evaluating potato resistance to black scurf caused by &lt;i&gt;Rhizoctonia solani&lt;/i&gt;

Zhang, Xiaoyu; Yu, Xiaoxia; Zhuo, Yu; Xue, Yongbo; Qi, Li-Peng

doi:10.1270/jsbbs.64.156

Cited by 29 publications

(20 citation statements)

References 28 publications

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“…The chilling injury of the fruits during storage was qualitatively determined based on visual observation using a numerical rating scale of 1-4 (1 = no chilling injury, 2 = slight chilling injury, 3 = moderate chilling injury, 4 = severe chilling injury). The disease incidence was calculated (Zhang et al 2014…”

Section: Moisture Contentmentioning

confidence: 99%

Post-harvest assessment of fruit quality and shelf life of two elite tomato varieties cultivated in Bangladesh

et al. 2019

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Background: Tomatoes are now one of the most popular nutrient-dense vegetables in terms of acreage, production, yield, commercial use, and consumption that add to the Bangladesh economy and ultimately reduce poverty. With this view, a lab investigation was carried out to analyze the effects of tomato (Sofol and Roma VF) verities on different post-harvest managements to extend shelf life as well as reduce post-harvest losses.Results: This study confirmed that the fruit quality attributes (color, firmness, weight loss, chilling injury, total soluble solids, pH, disease incidence, disease severity, and dry matter content) were increased whereas moisture content, vitamin C, and titratable acidity decreased with the increases in storage duration. The high quality attributes such as color, firmness, weight loss, chilling injury, total soluble solids, pH, disease incidence, disease severity, and dry matter content increased, whereas moisture content, vitamin C and titratable acidity decrease of tomato were observed in Roma VF while Sofol variety had high weight loss, moisture content, titratable acidity, and vitamin C. Moreover, the highest shelf life (17 days) was recorded in Sofol than Roma VF (15 days). On the 16th day of storage, maximum disease severity (41%) and disease incidence (71%) were observed at an earthen cooling pot, whereas a significant reduction in disease severity (1%) and disease incidence (8%) were recorded in tomatoes stored at 10 o C temperature. Weight loss was the lowest (4%) in Sofol when kept at unperforated low-density polyethylene (LDPL) plastic bag as compared to Roma VF treatment (11%). Considering the physiological process, held at the low temperature (10°C and 15°C) and increased shelf life as well as reduced the diseases of tomatoes. Conclusions: The investigator concluded that the findings of this study will be helpful with specific regard to long and medium-term storage, quality control, transportation, and advertising, and will also be beneficial to tomato growers of Bangladesh.

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Section: Moisture Contentmentioning

confidence: 99%

Post-harvest assessment of fruit quality and shelf life of two elite tomato varieties cultivated in Bangladesh

et al. 2019

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“…Festuca arundinacea) were placed on the soil surface, covered with 1 cm of sterile natural soil, and watered with 9-10 ml of water. The infected plants were counted 3 weeks later (Zhang et al 2014) and recorded. Evaluation was made according to a scale of 0 to 5: 0 = no disease symptoms, 1 = 1-10% hypocotyl infecting and/or shortening, 2 = 11-30% hypocotyl infecting and/or shortening, 3 = 31-50% hypocotyl infecting and/or shortening, 4 = 51-80% hypocotyl infecting and/or shortening, and 5 = entire hypocotyl infecting and/or shortening (Ichielevich Auster et al 1985).…”

Section: Pathogenicity Testsmentioning

confidence: 99%

Mycelial compatibility groups, pathogenic diversity and biological control of Sclerotium rolfsii on turfgrass

Ünal¹,

Aşkin²,

Koca³

et al. 2019

Egypt J Biol Pest Control

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Sclerotium rolfsii Sacc. (the sclerotial state of Athelia rolfsii (Cruzi) Tu and Kimbrough), the soil-borne pathogen on several plants all over the world, has been previously reported from Turkey on certain plants. In this study, turfgrass areas in 9 provinces of Turkey were firstly surveyed for S. rolfsii, and samples showing chlorotic, reddish-brown, and frog-eye shaped circular patches were collected. Totally, 32 Sclerotium rolfsii isolates were obtained from these areas. One mycelial compatibility group (MCG) was identified among S. rolfsii isolates. Disease severity in pathogenicity tests carried out in the greenhouse ranged from 83.74 to 92.87%. Identification of fungal and bacterial isolates used in the study was performed by DNA sequencing analysis. Five antagonistic bacterial strains, previously found as effective on controlling some fungal pathogens, were tested to determine their antifungal effects against the southern blight by using seed coating method in greenhouse conditions. In consequence of the biological control studies, Bacillus cereus 44bac and Stenotrophomonas rhizophila 88bfp were found more effective than the other strains with the ratio of 91.00 and 90.11%, respectively.

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“…According to Zhang et al [16] with some modification, healthy potato tubers selected and washed carefully in water. Tubers dipped in ethanol 70% for 5 min and washed in distilled water.…”

Section: Pathogenicity Testmentioning

confidence: 99%

Biosynthesis and Characterization of Silver Nanoparticles Produced by Plant Extracts and Its Antimicrobial Activity

Samy

Abbassy

Hafez

et al. 2019

SAJRM

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Solanum tubersum is the fourth most challenging plant in Egypt, affected by several fungi, viral and bacterial diseases. Bacterial and fungal isolates (Brown rot disease (Ralstonia solaniserum), soft root disease (Pectobacterium carotovora) and dry rot disease (Fusarium oxisporum) were collected. The green extracts of silver nanoparticles were prepared by means of aqueous extracts of three wild plants, Physalis peruviana (leaves, red and green fruits) (N1, N2 and N3), Solanum nigrum (fruit) (N4) and Moringa oliefera (leaves) (N5). SEM, TEM, FT-IR and X-RD obtained the characterization of the biosynthesis of silver nanoparticles. The results indicated that nanoparticles were spherical, smooth and the sizes varied between 12 and 33 nm. The activity of the nanoparticle formulations was tested against the bacterial isolates using agar diffusion method and one fungus using mycelial growth method. The results also elucidated that N5 formulation showed a significantly potent antibacterial activity against R. solanacearum. However, N1 formulation was the highest active one against P. carotovra. In addition, the antifungal activity indicated that N1 had the highest effect (EC50 = 687.03 mg/L) followed by N3 (EC50 = 981.61 mg/L) against F. oxysporium. Nanoparticles synthesized by wild plants could be used as safe alternatives to harmful microbicides.

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A simple method based on laboratory inoculum and field inoculum for evaluating potato resistance to black scurf caused by <i>Rhizoctonia solani</i>

Cited by 29 publications

References 28 publications

Post-harvest assessment of fruit quality and shelf life of two elite tomato varieties cultivated in Bangladesh

Post-harvest assessment of fruit quality and shelf life of two elite tomato varieties cultivated in Bangladesh

Mycelial compatibility groups, pathogenic diversity and biological control of Sclerotium rolfsii on turfgrass

Biosynthesis and Characterization of Silver Nanoparticles Produced by Plant Extracts and Its Antimicrobial Activity

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