California Statewide Assessment of the Effects of Ozone on Crop Productivity

Olszyk, David M.; Cabrera, Homero; Thompson, C. Ray

doi:10.1080/08940630.1988.10466435

Cited by 13 publications

(12 citation statements)

References 17 publications

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“…Typical dose-response relationships for crop losses in response to ozone exposure are based primarily on experiments using vegetative growth or yield as the response variables (e.g. Olszyk et al, 1988). In citrus and presumably for other crops, these models may overlook potential losses due to freezing temperatures.…”

Section: Discussionmentioning

confidence: 99%

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Sensitivity of frost resistance and growth in citrus and avocado to chronic ozone exposure

et al. 1991

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SUMMARYTbe efFects of elevated levels of ozone on growth and frost resistance were studied using broadleaf-evergreen citrus and avocado trees. 'Ruby Red' grapefruit {Citrusparadisi L.) trees on either Volkamer lemon {Citrus volkameriana Ten. & Pasq.) or sour orange {Citrus aurantium L.) rootstocks and ' Simmonds' or 'Pancho' a\ocado trees {Persea atnericano Mill.) on the rootstock ' Waldin' were exposed to ozone in open-top chambers for 4 months in 1988 and for 8 months in a second experiment in 1989. The ambient ozone concentration, averaged over a 12 h day, was 30-1 nl 1"' in 1988 and 39-1 nl 1"' in 1989 during the exposure period. Citrus tree growth, estimated by total leaf mass, was unaffected by ozone concentrations of 3 x ambient in either year but the growth of avocado in 1989 was reduced 20 and 61 "" by ozone concentrations at 2 x and 3 x ambient, respectively. Frost resistance, estimated by electrolyte leakage from leaf disks and from survival of leaves, stems and who!e plants following exposure to freezing temperatures, was often diminished in avocado and citrus at 3x ambient ozone, but occasionally was increased at 2 x ambient. The effects of chronic ozone exposure on frost resistance were generally subtle; 3 x ambient ozone exposure in 1989 compared to 0 3 x only caused the temperature for 50",, electrolyte leakage (LT,,,) to increase less than 1 °C ( -5'3 to -4-8 °C) in citrus and about 2 "C ( -8-0 to -5'8 °C) in avocado. Nevertheless, the tests for frost resistance on whole plants indicated that these differences could have a substantial impact on stem and plant survival if the frost was at a critical temperature. The likelihood that chronic ozone exposure currently affects citrus frost resistance in Florida appears slight.

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Section: Discussionmentioning

confidence: 99%

“…Citrus leaves do not normally exhibit bronzing or necrosis at these concentrations (Taylor, 1958). More recent data suggest that a 12 h ozone concentration of 100 nl l"â veraged over a normal season can reduce orange production by 45';'o (Olszyk, Cabrera & Thompson, 1988).…”

Section: Introductionmentioning

confidence: 99%

Sensitivity of frost resistance and growth in citrus and avocado to chronic ozone exposure

et al. 1991

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“…Their results are summarized in Table 12-1. 12). Olszyk et al (1988a) use published yield loss equations to estimate the 1984 production losses for 20 crops. To calculate losses, they compare current ambient ozone levels with a base case under which ozone levels are reduced to a "clean air" 8 background concentration of 0.025 ppm for 12 hours or 0.0272 ppm for 7 hours.…”

Section: Reviews (Seementioning

confidence: 99%

“…The detrimental effects of ambient ozone on crops, even at relatively low concentrations, are well-established (Thompson et al, 1976;Heck and Brandt, 1977;Heck et al, 1982;Environmental Protection Agency, 1984;California Air Resources Board, 1987;Olszyk et al, 1988aOlszyk et al, , 1988bHeagle et al, 1986;McCool et al, 1986, Ashmore, 1991. Ozone enters plant leaves through the stomatal openings in the leaf surface and then produces byproducts that reduce the efficiency of photosynthesis (CARB, 1987).…”

Section: Introductionmentioning

confidence: 99%

The cost of crop damage caused by ozone air pollution from motor vehicles

Murphy

Delucchi

McCubbin

et al. 1999

Journal of Environmental Management

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“…Included among the numerous commercially important crops that are grown in California are air pollution-sensitive plants that experience growth and yield reductions during the growing season (18). As crops in California are exposed to a wide variety of dry and wet-deposited pollutants, it is exceedingly difficult to attribute any observed alterations in growth or yield to the effects of one (or several) specific, phytotoxic airborne pollutant stress(es).…”

mentioning

confidence: 99%

Depression of Photosynthesis, Growth, and Yield in Field-Grown Green Pepper (Capsicum annuum L.) Exposed to Acidic Fog and Ambient Ozone

Takemoto

Bytnerowicz²,

Olszyk³

1988

Plant Physiol.

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The relationship among physiological, injury, growth, and yield responses was examined in field-grown green pepper (Capsicum annuum L. 'California Wonder') subjected to two airborne environmental stresses. The primary objectives were to determine if the stresses could cause alterations in the plant responses, and to determine if any stress induced alterations in physiological or injury responses were correlated with effects on growth or yield. Responses were monitored in green pepper exposed to simulated acidic fog alone, or in combination with ambient concentrations of ozone in open-top field chambers. Both highly acidic fog and ambient ozone depressed green pepper growth and yield responses via the inhibition of photosynthesis. Applications of highly acidic fog (i.e. two exposures of pH 1.68 fog per week for 11 weeks) caused a significant depression of net photosynthesis, reduction in leaf buffering capacity, and an extensive amount of leaf injury. These alterations closely paralleled decreases in growth and yield on a percentage basis. In contrast, ambient ozone had similar impacts on net photosynthesis, growth and yield, but enhanced leaf buffering capacity, and caused no visible injury. The pollutant-specific differences in plant response are discussed with respect to whole-plant carbon metabolism and physiological compensation.

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California Statewide Assessment of the Effects of Ozone on Crop Productivity

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Cited by 13 publications

References 17 publications

Sensitivity of frost resistance and growth in citrus and avocado to chronic ozone exposure

Sensitivity of frost resistance and growth in citrus and avocado to chronic ozone exposure

The cost of crop damage caused by ozone air pollution from motor vehicles

Depression of Photosynthesis, Growth, and Yield in Field-Grown Green Pepper (Capsicum annuum L.) Exposed to Acidic Fog and Ambient Ozone

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