Potential isothiocyanate release remains constant across biofumigant seeding rates

Timothy Doheny-Adams; Anthony Barker; Catherine J. Lilley; Ruth Nicola Wade; Samuel Ellis; Howard Atkinson; Peter Urwin; Kelly Robert Redeker; Susan E  Hartley

doi:10.1021/acs.jafc.7b04610

Potential isothiocyanate release remains constant across biofumigant seeding rates

Timothy Doheny-Adams, Anthony Barker, Catherine J. Lilley, Ruth Nicola Wade, Samuel Ellis, Howard Atkinson, Peter Urwin, Kelly Robert Redeker, Susan E Hartley

Research output: Contribution to journal › Article › peer-review

Abstract

Biofumigation is an integrated pest management method involving the mulching of a glucosinolate containing cover crop into a field in order to generate toxic isothiocyanates, effective soil borne pest control compounds. Variation in biofumigation efficacy demonstrates a need to better understand the factors affecting pest control outcomes and develop best practice for biofumigant choice, growth conditions and mulching methods which allow the greatest potential isothiocyanate release. We measured the glucosinolate concentration of 6 different commercial varieties of three different biofumigant plant species: Brassica juncea (ISCI99, Vitasso, Scala) Raphanus sativus (Diablo, Bento) and Sinapis alba (Ida Gold). Plants were grown at a range of commercially appropriate seeding rates and sampled at three growth stages (early development, mature, and 50% flowering). Within biofumigant species, highest ITC release potential was achieved with B. juncea cv. ISCI99 and R. sativus cv. Bento. Highest ITC release potential occurred at 50% flowering growth stage across species. Seeding rate had minor impact on ITC release potential from R. sativus but had no significant effect on the ITC release potential of B. juncea or S. alba cultivars.

Original language	English
Journal	Journal of Agricultural and Food Chemistry
Early online date	6 Apr 2018
DOIs	https://doi.org/10.1021/acs.jafc.7b04610
Publication status	Published - 23 May 2018

Bibliographical note

© 2018 American Chemical Society. This is an author-produced version of the published paper. Uploaded in accordance with the publisher’s self-archiving policy. Further copying may not be permitted; contact the publisher for details

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10.1021/acs.jafc.7b04610

Hartley - Potential ITC release remeain constant across biofumigation seeding rates
© 2018 American Chemical Society. This is an author-produced version of the published paper. Uploaded in accordance with the publisher’s self-archiving policy. Further copying may not be permitted; contact the publisher for details
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Cite this

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title = "Potential isothiocyanate release remains constant across biofumigant seeding rates",

abstract = "Biofumigation is an integrated pest management method involving the mulching of a glucosinolate containing cover crop into a field in order to generate toxic isothiocyanates, effective soil borne pest control compounds. Variation in biofumigation efficacy demonstrates a need to better understand the factors affecting pest control outcomes and develop best practice for biofumigant choice, growth conditions and mulching methods which allow the greatest potential isothiocyanate release. We measured the glucosinolate concentration of 6 different commercial varieties of three different biofumigant plant species: Brassica juncea (ISCI99, Vitasso, Scala) Raphanus sativus (Diablo, Bento) and Sinapis alba (Ida Gold). Plants were grown at a range of commercially appropriate seeding rates and sampled at three growth stages (early development, mature, and 50% flowering). Within biofumigant species, highest ITC release potential was achieved with B. juncea cv. ISCI99 and R. sativus cv. Bento. Highest ITC release potential occurred at 50% flowering growth stage across species. Seeding rate had minor impact on ITC release potential from R. sativus but had no significant effect on the ITC release potential of B. juncea or S. alba cultivars. ",

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AU - Barker, Anthony

AU - Lilley, Catherine J.

AU - Wade, Ruth Nicola

AU - Ellis, Samuel

AU - Atkinson, Howard

AU - Urwin, Peter

AU - Redeker, Kelly Robert

AU - Hartley, Susan E

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N2 - Biofumigation is an integrated pest management method involving the mulching of a glucosinolate containing cover crop into a field in order to generate toxic isothiocyanates, effective soil borne pest control compounds. Variation in biofumigation efficacy demonstrates a need to better understand the factors affecting pest control outcomes and develop best practice for biofumigant choice, growth conditions and mulching methods which allow the greatest potential isothiocyanate release. We measured the glucosinolate concentration of 6 different commercial varieties of three different biofumigant plant species: Brassica juncea (ISCI99, Vitasso, Scala) Raphanus sativus (Diablo, Bento) and Sinapis alba (Ida Gold). Plants were grown at a range of commercially appropriate seeding rates and sampled at three growth stages (early development, mature, and 50% flowering). Within biofumigant species, highest ITC release potential was achieved with B. juncea cv. ISCI99 and R. sativus cv. Bento. Highest ITC release potential occurred at 50% flowering growth stage across species. Seeding rate had minor impact on ITC release potential from R. sativus but had no significant effect on the ITC release potential of B. juncea or S. alba cultivars.

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