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Induction of Systemic Resistance in Plants by Biochar, a Soil-Applied Carbon Sequestering Agent

Elad, Yigal ; David, Dalia Rav ; Harel, Yael Meller ; Borenshtein, Menahem ; Ben Kalifa, Hananel ; Silber, Avner ; Graber, Ellen R

Phytopathology, 2010-09, Vol.100 (9), p.913-921 [Periódico revisado por pares]

St. Paul, MN: American Phytopathological Society

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Título:
Induction of Systemic Resistance in Plants by Biochar, a Soil-Applied Carbon Sequestering Agent
Autor: Elad, Yigal ; David, Dalia Rav ; Harel, Yael Meller ; Borenshtein, Menahem ; Ben Kalifa, Hananel ; Silber, Avner ; Graber, Ellen R
Assuntos: application rate ; ash ; biochar ; Biological and medical sciences ; Botrytis cinerea ; Capsicum - microbiology ; Capsicum annuum ; Carbon - chemistry ; Charcoal - chemistry ; Charcoal - pharmacology ; coir ; crop residues ; disease resistance ; energy crops ; foliar diseases ; Fundamental and applied biological sciences. Psychology ; fungal diseases of plants ; Fungi ; induced resistance ; insect control ; insect pests ; Leveillula taurica ; Lycopersicon esculentum - microbiology ; pathogenicity ; peppers ; Pest Control, Biological - methods ; Phytopathology. Animal pests. Plant and forest protection ; plant byproducts ; Plant Diseases - prevention & control ; Plant Leaves - microbiology ; plant pathogenic fungi ; plant pests ; Polyphagotarsonemus latus ; Soil ; soil amendments ; Soil Microbiology ; Solanum lycopersicum var. lycopersicum ; systemic acquired resistance ; Time Factors ; tomatoes
É parte de: Phytopathology, 2010-09, Vol.100 (9), p.913-921
Notas: http://dx.doi.org/10.1094/PHYTO-100-9-0913
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Descrição: Biochar is the solid coproduct of biomass pyrolysis, a technique used for carbon-negative production of second-generation biofuels. The biochar can be applied as a soil amendment, where it permanently sequesters carbon from the atmosphere as well as improves soil tilth, nutrient retention, and crop productivity. In addition to its other benefits in soil, we found that soil-applied biochar induces systemic resistance to the foliar fungal pathogens Botrytis cinerea (gray mold) and Leveillula taurica (powdery mildew) on pepper and tomato and to the broad mite pest (Polyphagotarsonemus latus Banks) on pepper. Levels of 1 to 5% biochar in a soil and a coconut fiber-tuff potting medium were found to be significantly effective at suppressing both diseases in leaves of different ages. In long-term tests (105 days), pepper powdery mildew was significantly less severe in the biochar-treated plants than in the plants from the unamended controls although, during the final 25 days, the rate of disease development in the treatments and controls was similar. Possible biochar-related elicitors of systemic induced resistance are discussed.
Editor: St. Paul, MN: American Phytopathological Society
Idioma: Inglês

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Induction of Systemic Resistance in Plants by Biochar, a Soil-Applied Carbon Sequestering Agent

Elad, Yigal ; David, Dalia Rav ; Harel, Yael Meller ; Borenshtein, Menahem ; Ben Kalifa, Hananel ; Silber, Avner ; Graber, Ellen R

St. Paul, MN: American Phytopathological Society

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