The Influence of Several Crop Sequences on the Incidence of Verticillium Wilt of Cotton and on the Population of Verticillium dahliae in Field Soil

Butterfield, E. J.; DeVay, J. E.; Garber, R. H.

doi:10.1094/phyto-68-1217

Cited by 30 publications

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“…Crop rotation with non-hosts has generally been ineffective in other studies in terms of reducing the density of microsclerotia of V. dahliae (10,15). In this study, crop rotation appeared to be a very effective means of reducing potential damage caused by Verticillium wilt, and microsclerotia buildup was <10% of that in CC.…”

Section: Discussionmentioning

confidence: 50%

“…Partial host resistance or tolerance has been identified in cotton; however, strong sources of resistance have not been incorporated into commercial upland cultivars (6). Crop rotation has been shown to be inadequate in fields with a long history of Verticillium wilt (10,15). Crop rotation has been shown to be inadequate in fields with a long history of Verticillium wilt (10,15).…”

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confidence: 99%

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Effects of Crop Rotation, Cultivar, and Irrigation and Nitrogen Rate on Verticillium Wilt in Cotton

et al. 2012

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Wheeler, T. A., Bordovsky, J. P., Keeling, J. W., Mullinix, B. G., Jr., and Woodward, J. E. 2012. Effects of crop rotation, cultivar, and irrigation and nitrogen rate on Verticillium wilt in cotton. Plant Dis. 96:985-989.A field experiment was conducted under center-pivot irrigation in four wedges, with one wedge in continuous cotton (CC) and three wedges in a rotation (ROT) with 2 years cotton and 1 year in sorghum. Three irrigation rates (base = l.OB, 1.5B, and 0.5B) were applied during 2007 to 2009 on a susceptible (ST) and partially resistant (PR) cultivar. Nitrogen applied during the season was proportional to irrigation rate. In the ROT wedges, 0.5B, l.OB, and 1.5B irrigation and nitrogen rates averaged 1, 3, and 9% incidence of wilt, respectively. Disease incidence in the CC wedge averaged 6, 18, and 34% wilt incidence for 0.5B, 1 .OB, and 1.5B irrigation and nitrogen rates. In the ROT wedges, the ST cultivar returned $143/ha more than the PR cultivars at the 0.5B

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Section: Discussionmentioning

confidence: 50%

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confidence: 99%

Effects of Crop Rotation, Cultivar, and Irrigation and Nitrogen Rate on Verticillium Wilt in Cotton

et al. 2012

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“…Soil from the composite sample was dried for 1 wk and then 20‐cm 3 soil was added to 80 mL water and mixed well for 30 s (Wheeler and Rowe, 1995). Then five, 1‐mL aliquots were placed on NPX media (Butterfield et al, 1978) in plastic Petri dishes. Plates were incubated in the dark for 14 d at room temperature and then the soil on the plates was washed off and colonies of V. dahliae were enumerated.…”

Section: Methodsmentioning

confidence: 99%

Integrating Cotton and Beef Production in the Texas Southern High Plains: I. Water Use and Measures of Productivity

et al. 2012

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Texas High Plains agriculture, largely dependent on water from the Ogallala aquifer for irrigation, exemplifies semiarid agricultural regions where irrigation is used at nonsustainable rates of extraction. Integrating crop and livestock systems has been suggested to conserve water and to achieve other environmental and economic goals compared with monoculture systems. From 1998 to 2008, two large‐scale systems, with three blocks in a randomized block design, compared irrigation water, productivity, chemical inputs, and specific pests of (i) a cotton (Gossypium hirsutum L.) monoculture, and (ii) an integrated three‐paddock system that included cotton in a two‐paddock rotation with grazed wheat (Triticum aestivum L.) and rye (Secale cereale L.) and the perennial variety WW‐B. Dahl old world bluestem (OWB) [Bothriochloa bladhii (Retz) S.T. Blake] in a third paddock for grazing and seed production. All paddocks were irrigated by subsurface drip. Angus crossbred beef steers (Bos taurus; initial BW 229 kg; SD = 33 kg) grazed 185 d from January to mid‐July each year. During the 10 yr following the establishment year, cotton lint yield was similar and averaged 1370 kg ha−1 for both systems. Bluestem seed yield averaged 25 kg pure live seed (PLS) ha−1. Steers gained 139 kg on pasture and 0.79 kg d−1. Per hectare, the integrated system used 25% less (P < 0.001) irrigation water, 36% less N fertilizer, and fewer other chemical inputs than monoculture cotton. Integrated production systems that are less dependent on irrigation and chemical inputs appear possible while achieving goals of sustainability, fiber production, and food security.

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“…The effectiveness of crop rotation for the management of Verticillium wilt diseases is still a subject of debate. The long persistence of microsclerotia in soil and the wide host range of V. dahliae possibly contribute to inconsistency of results found in several studies (Butterfield et al, 1978;Sezgin et al, 1982;Joaquim et al, 1988;Easton et al, 1992;Chen et al, 1995). Weeds in crop rotations can also be hosts of the pathogen, thus contributing to inoculum increase and inconsistency of results.…”

Section: Cultural Practicesmentioning

confidence: 93%

Scientific opinion on the pest categorisation of Verticillium dahliae Kleb

Rossi¹

2014

EFS2

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The European Commission requested the EFSA Panel on Plant Health to perform a pest categorisation of Verticillium dahliae Kleb., the fungal pathogen responsible for many Verticillium wilt diseases. V. dahliae is a single taxonomic entity, and sensitive and reliable methods exist for its detection and identification. V. dahliae is a highly polyphagous pathogen, affecting, overall, 400 cultivated and non-cultivated plant species. It is a hostadapted rather than a host-specific pathogen and has the ability to continuously widen its host range and develop races/pathotypes that can overcome host resistance or be more virulent on known hosts and host cultivars. V. dahliae is a vascular pathogen that causes wilt and plant death, thus impairing the growth and shortening the lifespan of its hosts. The pathogen is currently present in most parts of the risk assessment area, where yield reductions up to 50 % or more have been reported on some high value crops, including cotton, olive, potato, strawberry and ornamentals. There are no obvious eco-climatic factors limiting its potential establishment and spread in the non-infested part of the risk assessment area, where hosts are present. Once established, the pathogen can spread by both natural and human-assisted means. Movement of infected host plants for planting, especially asymptomatic plants, and seeds can introduce the pathogen (and its highly virulent races/pathotypes) into new areas. Application of integrated management strategies combined with disease risk assessment (assessment of the available soil-borne inoculum, determination of races/pathotypes present in the site, field cropping history) may reduce the impacts of Verticillium wilt in the risk assessment area, but it cannot eliminate the pathogen. V. dahliae is listed in Annex IIAII of Directive 2000/29/EC and, despite its wide host range, it is regulated only on Humulus lupulus (hop), for which the pathogen is considered of minor importance compared to V. nonalfalfae.

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The Influence of Several Crop Sequences on the Incidence of Verticillium Wilt of Cotton and on the Population of Verticillium dahliae in Field Soil

Cited by 30 publications

References 0 publications

Effects of Crop Rotation, Cultivar, and Irrigation and Nitrogen Rate on Verticillium Wilt in Cotton

Effects of Crop Rotation, Cultivar, and Irrigation and Nitrogen Rate on Verticillium Wilt in Cotton

Integrating Cotton and Beef Production in the Texas Southern High Plains: I. Water Use and Measures of Productivity

Scientific opinion on the pest categorisation of Verticillium dahliae Kleb

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