Search Results

You are looking at 1 - 10 of 267 items for :

  • Fusarium oxysporum x
  • All content x
Clear All
Free access

Michelle L. Paynter, Joanne De Faveri, and Mark E. Herrington

Fusarium vascular wilt disease is incited by pathogens of Fusarium oxysporum and comprises major soilborne fungal pathogens of many important crops. The F. oxysporum complex comprises both pathogenic and non-pathogenic strains, many being

Free access

Michelle L. Paynter, Elizabeth Czislowski, Mark E. Herrington, and Elizabeth A.B. Aitken

the market soil-borne diseases have recently caused major losses in the Australian strawberry industry. Fusarium oxysporum is associated with a group of pathogens causing crown and root diseases of strawberry. These include: Colletotrichum species

Free access

W. Patrick Wechter, Chandrasekar Kousik, Melanie McMillan, and Amnon Levi

Fusarium wilt [caused by Fusarium oxysporum Schlechtend.:Fr. f. sp. niveum (E.F. Sm.) W.C. Snyder & H.N. Hans ( Fon )] is one of the most serious soilborne diseases of watermelon ( Martyn, 1985 , 1987 ; Netzer, 1976 ). Initial symptoms can

Free access

Hela Chikh-Rouhou, Rafael González-Torres, José María Alvarez, and Ali Oumouloud

, and taste with Cucumis melo being considered the most variable species within the genus ( Bates and Robinson, 1995 ; Jeffrey, 1980 ; Mallick and Masui, 1986 ). Fusarium wilt, caused by Fusarium oxysporum f.sp. melonis ( F.o.m .), is a

Free access

Geoffrey Meru and Cecilia E. McGregor

)] into elite material. The efforts associated with introgressing fusarium wilt resistance have been particularly successful on one hand (race 1), and frustrating on the other (race 2). Fusarium oxysporum f. sp. niveum is a soil-borne pathogen that

Open access

José Luis Chaves-Gómez, Alba Marina Cotes-Prado, Sandra Gómez-Caro, and Hermann Restrepo-Díaz

), or chitosan + burned rice husk (ChiRh)] application on cape gooseberry plants with or without Fusarium oxysporum f. sp. physali (FOph + ). Vascular wilt development. All FOph + inoculated plants had a 100% incidence of the disease. The presence

Full access

Xin Zhao, Qianru Liu, M. Tatiana Sanchez, and Nicholas S. Dufault

number, and total leaf area in nongrafted and grafted seedless watermelon ‘Melody’ in 2015 and 2016 greenhouse experiments with Fusarium oxysporum f. sp. niveum (FON) race 2 inoculation. Fusarium spp. were isolated from some of the grafted plants in

Free access

Th.P. Straathof and H.J.M. Löffler

Tests for determining resistance to Fusarium oxysporum f.sp. lilii in different developmental stages of Lilium were developed. Under standardized conditions, commercial bulbs, yearling bulbs, scale bulblets, and scales of 16 Asiatic lily cultivars were tested for Fusarium resistance. Disease ratings were analyzed statistically using a threshold model for ordered categorical data. For each cultivar in each stage the resistance level was calculated as the disease severity score (DSS). Disease severity score values of cultivars in the four stages were reproducible between experiments, although some variation in cultivars was found. This variation may be attributed to the origin of plant material. Disease severity score values among cultivars in each developmental stage were correlated with the average DSS over all four stages, although some specific cultivar-stage deviations were found. The scale test is recommended for early selection while the scale bulblet test is recommended as a final check.

Free access

Ana María Prados-Ligero, María José Basallote-Ureba, Carlos José López-Herrera, and José María Melero-Vara

carnation in most areas of the world where the crop is grown is Fusarium wilt (FW), incited by Fusarium oxysporum fsp. dianthi ( Fod ). FW affects carnations for most of the year when environmental conditions within the plastic house favor infection

Free access

Roney Ballinas-Cano, Javie Farias-Larios, Mario Orozco-Santos, J. Gerardo López-Aguirre*, and Emilio Sánchez-Arevalo

Soil solarization is used for soil born pathogens control, as a result of temperature increase in soil, around 10 °C higher than in not solarized soils. In Mexico, is mostly used to decrease cost to control of different diseases that affect to melon crop, one of them is caused by Fusarium oxysporum f. sp. melonis (L & C) Snyder & Hansen, which is characterized by wilt and yellowing in melon plants. The objective of this assay was to evaluate the effect of heat on infective capacity of F. oxysporum f. sp. melonis in melon plants and its reproduction capacity after to be under different periods of heat under laboratory conditions. Isolated was taken from melon plants from Carmelitas Ranch in the Colima Municipality. Inoculation was 1 × 10-6 conidia concentration. Cloth bags, with 20 g of inoculated soil, were introduced at 9 cm depth in metallic pots (16 cm diameter and 18 cm depth) containing 4 kg of not inoculated soil during 24, 48, 72, 96, and 120 h, with 6 replications. After each period, 1 g was taken from the cloth bags used in heat treatments, later was diluted in 50 mL of distillated water, and petri dishes containing PDA, were inoculated with 1 mL from that dilution and inoculum viability was registered at 96 h after incubation. Parameters evaluated were: mycelium growth, propagule number, and conidia number. Results showed a positive effect to control of Fusarium oxysporum f. sp. melonis, in treatments with a higher heat period, respecting to the control. Is necessary to evaluate this technique under field conditions during summer season.