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Evidence of ozone injury to a crop plant in India
Institution:1. Department of Agriculture, Food and Environment, University of Pisa, Via del Borghetto 80, Pisa 56124, Italy;2. Institute for Sustainable Plant Protection, National Research Council, Via Madonna del Piano 10, Sesto Fiorentino, Florence 50019, Italy;3. CIRSEC, Center for Climatic Change Impact, University of Pisa, Via del Borghetto 80, Pisa 56124, Italy;4. College of Horticulture and Landscape Architecture, Northeast Agricultural University, Changjiang Road 600, Harbin 150030, China;5. Institute of Biometeorology, National Research Council, Via P. Gobetti 101, Bologna 40129, Italy;1. Dirección de investigación y soluciones tecnológicas, Centro de Innovación Aplicada en Tecnologías Competitivas (CIATEC), Omega 201, Col. Industrial Delta, León, Guanajuato, C.P. 37545, México.;2. Departamento de Química y Bioquímica, Tecnológico Nacional de México-Instituto Tecnológico de Tepic, Av. Tecnológico # 2595, Lagos del Country, 63175, Tepic, Nayarit, México;3. División de ciencias naturales y exactas, Departamento de Ingeniería Química, Universidad de Guanajuato, Noria Alta s/n, 36050, Guanajuato, Guanajuato, México
Abstract:Evidence is presented to show that a serious leaf spot disease of potato which appeared each year in the Punjab since 1978 is primarily due to ozone:
  • 1.(i) The symptoms of the leaf spot were similar to the ozone stipple of potato reported in the U.S.A.
  • 2.(ii) Activated charcoal and ethylenediurea effectively controlled the spots.
  • 3.(iii) Elevated ozone in the atmosphere was detected with the bioindicators Nicotiana tabacum var. Bel-W3 and potato variety Cherokee. This is the first report of ozone injury to a crop plant in India.
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