Crop growth along a gradient of ambient air pollution

Ashmore, Mike; Bell, John; Mimmack, A.

doi:10.1016/0269-7491(88)90028-0

Cited by 26 publications

(5 citation statements)

References 20 publications

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“…Lotschert and Kohm [130] reported bark pH alterations and changes in Ca 2 content in the bark of trees on long-term exposure to dust. Some field-based studies have confirmed the damages on road-side plants [131] and agricultural crops grown beside highway traffic in London in the 1980s [132].…”

Section: Impact Of Road-side Plants On Minimizing Vehicular Emissionsmentioning

confidence: 96%

Reviewing the Impact of Vehicular Pollution on Road-Side Plants—Future Perspectives

Muthu¹,

Gopal²,

Kim

et al. 2021

Sustainability

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With population explosion, automobiles have also exploded and so has pollution due to vehicular emissions. Road-side plants and highway vegetation are the first targets of these vehicular emissions. This review briefly presents a snapshot of how vehicular emission can affect plants. On the contrary, the positive perspective of how road-side plants may be able to affect and influence the harmful effects of vehicular emissions has also been discussed. Ways and means by which plants can become potential bio indicators of air pollution have also been speculated. The fact that the nanocarbon particulate aspect of automobile pollutants and their interactions with road-side plants and more so on road-side agricultural crops, has not been appropriately investigated has been raised as a key concern. The need to arrive at mitigation methods to identify permanent solutions to these rising concerns has been highlighted.

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Section: Impact Of Road-side Plants On Minimizing Vehicular Emissionsmentioning

confidence: 96%

Reviewing the Impact of Vehicular Pollution on Road-Side Plants—Future Perspectives

Muthu¹,

Gopal²,

Kim

et al. 2021

Sustainability

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“…Many studies deal with the impact of air pollutants on different plant species in terms of growth, yield (dose-response relationship), and physiology (Baker et al 1986, Ashmore et al 1988, Malik and Bell 1993, Hassan et al 1994, 1999, Huang et al 1994, Malik 2000). However, plant response to air pollutants such as O 3 , SO 2 , and NO 2 may be modified by coexisting environmental factors, such as nutrient availability (e.g.…”

Section: Introductionmentioning

confidence: 99%

Interactive Effects of Salinity and Ozone Pollution on Photosynthesis, Stomatal Conductance, Growth, and Assimilate Partitioning of Wheat (Triticum aestivum L.)

Hassan¹

2004

Photosynt.

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Plants of an Egyptian cultivar of wheat (Triticum aestivum L. cv. Giza 63) were exposed in open-top chambers (OTCs) for 8 h d -1 for up to 75 d to a factorial combination of two levels of salinity (0 and 50 mM NaCl) and two levels of O 3 (filtered air and 50 mm 3 m -3 ). Exposure to 50 mm 3 m -3 O 3 significantly decreased stomatal conductance (g s ), net photosynthetic rate (P N ), and chlorophyll (Chl) content by 20, 25, and 21 %, respectively. This reduction resulted in a change in assimilate allocation in favour of shoot growth leading to a decrease in root to shoot ratio and eventually to a decrease in relative growth rate (RGR) of both root and shoot. There was a very large reduction in yield parameters, especially in the number of ears/plant and 1 000-grain mass. Soil salinity significantly reduced P N and g s by 17 and 15 %, respectively, while Chl content was increased by 17 %. Root growth was decreased leading to an increase in root/shoot ratio. Yield parameters were decreased due to salt stress. There was antagonistic interaction between salinity (50 mM NaCl) and O 3 (50 mm 3 m -3 ) showing that salinity effectively protects against the adverse effects of O 3 by increasing g s during O 3 fumigation.

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“…Any increase in the annual input of combined N, whether in precipitation or dry deposition, could be expected to increase yield. Other changes in the atmosphere may have decreased yields: thus Ashmore et al (1988) have shown that gaseous atmospheric pollutants, such as SO 2 , NO 2 and O 3 , now rise intermittently in Southern Britain to concentrations at which plant damage can be expected.…”

Section: Introductionmentioning

confidence: 99%

Trends in herbage yields over the last century on the Rothamsted Long-term Continuous Hay Experiment

et al. 1994

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S U M M A R YYields from five of the plots on the Park Grass Continuous Hay experiment at Rothamsted, started in 1856, were examined to see if any long-term trends could be detected over the last 100 years. Three of the plots examined are unfertilized; two receive inorganic nutrients every year; all are harvested twice a year. In 1959 the harvesting procedure was changed: yields for the periods before and after this change were examined separately and together. On none of the three unfertilized plots was the slope of the regression of total yield (i.e. first and second cuts combined) on time significantly (P < 005) different from zero in either the 1891-1958 or 1960-1992 periods. On both the fertilized plots, there were significant declines in yield with time over the 1960-92 period, assuming that the effects of autocorrelation are sufficiently small to be ignored; there were no consistent changes between 1891 and 1958. There were some significant trends on the five plots when the two cuts were considered separately.A linear regression model was fitted to the data in an attempt to separate the effects of meteorological variables (rainfall and sunshine hours over selected parts of the year) on total yield from possible long-term effects brought about, for example, by the increasing concentration of CO 2 in the atmosphere. On four of the five plots this model accounted for between 12 and 21 % of the yield variance in the pre-1959 period and between 45 and 63 % after 1960. On the fifth plot, which received the highest level of N, the model accounted for 29 % of the variance in the first period but only for 16% in the second period. When a linear trend with time was included in the model, this was not significant on any of the plots over the entire 1891-1992 period, although some significant trends appeared when the two periods were considered separately. The model was also fitted with the atmospheric CO 2 concentration in place of the linear trend with time: again there were no consistent trends.Neither changes in the concentration of CO 2 in the atmosphere over the last century nor increasing inputs of combined N in rainfall or in dry deposition have had any detectable effects on yield in these plots.

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Crop growth along a gradient of ambient air pollution

Cited by 26 publications

References 20 publications

Reviewing the Impact of Vehicular Pollution on Road-Side Plants—Future Perspectives

Reviewing the Impact of Vehicular Pollution on Road-Side Plants—Future Perspectives

Interactive Effects of Salinity and Ozone Pollution on Photosynthesis, Stomatal Conductance, Growth, and Assimilate Partitioning of Wheat (Triticum aestivum L.)

Trends in herbage yields over the last century on the Rothamsted Long-term Continuous Hay Experiment

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