Open-air fumigation of field crops: Criteria and design for a new experimental system

McLeod, Andrew; Fackrell, J.E.; Alexander, K. G.

doi:10.1016/0004-6981(85)90216-1

Cited by 76 publications

(24 citation statements)

References 13 publications

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“…In some, plants were exposed to high concentrations beneath portable fumigation hoods (Brisley & Jones, 1950) or were sited near industrial sources of pollution (Garber, 1967;Guderian & Stratmann, 1968). In other experiments, the SOj concentrations were comparable with those found over agricultural land, but provided evidence for responses of plants to pollution from point sources rather than to more uniform regional concentrations (summary in McLeod, Fackrell & Alexander, 1985).…”

Section: Introductionsupporting

confidence: 53%

Depression of Growth and Yield in Winter Barley Exposed to Sulphur Dioxide in the Field

et al. 1986

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SUMMARYA field exposure system designed for the controlled release of sulphur dioxide (SO,) was used in two contrasting seasons to expose commercial crops of winter barley {Hordeum vulgare L.) to SO2 concentrations ranging from 40 to 200 ppb [parts per billion (10') by volume] above ambient. During winter and early spring, growth of the plants was depressed at high SOj concentrations but later recovered; in spring and summer, low concentrations stimulated growth above that of controls, but there was no corresponding increase in grain yield. Yield depression is discussed in relation to SOj concentration and dose.

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Section: Introductionsupporting

confidence: 53%

Depression of Growth and Yield in Winter Barley Exposed to Sulphur Dioxide in the Field

et al. 1986

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“…The release rate of SO, was controlled by a Macsym 2 control computer (Analog Devices Ltd.) to maintain the sequence of hourlymean target concentrations. The exposure system operated continuously except for periods of equipment failure, instrument calibration and periods with wind velocity below 1 m s ' when the gas supply was automatically turned off (McLeod et al, 1985). The wind velocity fell below the threshold of 1 m s ' for 20",, of the duration of the experiment.…”

Section: M'\te Rials and Methodsmentioning

confidence: 99%

Effects of open‐air fumigation with sulphur dioxide on the growth and yield of winter barley

et al. 1988

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SUMMARYAn open-air fumigation system was used to expose a winter barley crop {Hordeum vulgare L.) to controlled concentrations of SO.j from November 1982 to July 1983. Monitoring data from a rural site were used as a hasis for simulating mean concentrations of 0-023, 0038 and 0-058//I 1' SO., at a location where background concentrations were 001 //I 1' SOj. There was no evidence ot a reduetion or stimulation of erop growth over the winter period. During the spring, the crop in SO. fumigated plots had a higher green leaf area and dry weight than in control plots which may have resulted from a reduction in the occurrence of the fungal pathogen brown rust {Puccinia liordei Otth.). After ear emergence a delay in senescence of leaves was observed in fumigated plots which gave the plants an extended period for assimilation during grain filling. There was no evidenee that the yield of barley was reduced within the range of ambient SO.^ concentration in the UK (annual mean < 003 //I 1' SO.,). However, at 0-0.S8//I 1 ' SO,, reductions in yield were observed. Treatment with 0-023//I 1' SO^ produced increased grain yield.

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“…Early types of free-air exposure systems were built in the Netherlands (Mooi and van der Zalm 1985) and England (McLeod et al 1985) for exposing vegetation to elevated concentrations of atmospheric trace gases. The FACE Program at Brookhaven National Laboratory (BNL) considered these original ideas in designing the BNL FACE systems.…”

Section: R Backgroundmentioning

confidence: 99%

Brookhaven National Laboratory free-air carbon dioxide enrichment forest prototype -- Interim report

Hendrey¹,

Lewin²,

Nagy³

1994

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Open-air fumigation of field crops: Criteria and design for a new experimental system

Cited by 76 publications

References 13 publications

Depression of Growth and Yield in Winter Barley Exposed to Sulphur Dioxide in the Field

Depression of Growth and Yield in Winter Barley Exposed to Sulphur Dioxide in the Field

Effects of open‐air fumigation with sulphur dioxide on the growth and yield of winter barley

Brookhaven National Laboratory free-air carbon dioxide enrichment forest prototype -- Interim report

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