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Studies on dry matter partioning and distribution of 14C-labelled assimilates in plants of Phleum pratense [feed grass] exposed to SO2 pollution.
1982
Jones T. | Mansfield T.A.
Impact of cement dust on the mineral and energy concentration of Psidium quajava [India].
1982
Lal B.
Relative sensitivity of a leguminous and a cereal crop to sulphur dioxide pollution [soyabean, wheat].
1982
Prasad B.J. | Rao D.N.
Fluoride-induced foliar injury in Solanum pseudo-capsicum: its induction in the dark and activation in the light.
1982
MacLean D.C. | Schneider R.E. | Weinstein L.H.
Further observations on the effect of Abate on fish catches [larvicide].
1982
Abban E.K. | Samman J.
Industrial wastes as carbon sources in biological denitrification [Addition of maize silage derivative, whey, yeast for the stimulation of the activity of heterotrophic bacteria].
1982
Skrinde J.R. | Bhagat S.K.
Water quality in urban streams: what we can expect [USA].
1982
Duda A.M. | Lenat D.R. | Penrose D.L.
Disease outbreaks caused by drinking water [Bacteria, viruses].
1982
Dufour A.P.
Geochemical environments and the geographical distribution of some diseases in Sri Lanka.
1982
Dissanayake C.B. | Senaratne A.
A survey of on the incidence of dental diseases and the distribution of fluoride in drinking water wells in Sri Lanka, confirms that a distinct causal relationship exists and is clearly geographically related. A similar study on the incidence of total cancer in Sri Lanka in relation to environmental factors such as rainfall, concentration of total dissolved ions, hardness of drinking well water, etc. showed an association resting entirely upon correlation.
Show more [+] Less [-]Reduction in soybean yield after exposure to ozone and sulfur dioxide using a linear gradient exposure technique.
1982
Reich P.B. | Amundson R.G. | Lassoie J.P.
A linear gradient field exposure system was modified from one originally described by Shinn et al. (1977) and used to expose field grown soybeans (Glycine max cv Hark) to a concentration gradient of a mixture of two gaseous pollutants: SO(,2) and O(,3). Since this technique does not use enclosures, study plants experienced near ambient fluctuations in environmental conditions, including wind, and hence were exposed to widely fluctuating pollutant concentrations. Plants in the gradient system were exposed to both pollutants for 57 h on 12 days during the pod-filling period (31 August-17 September). Mean concentrations during the 57 h of exposure at the 'high' end of the gradient were 0.16 and 0.06 mu-l/l (ppm) SO(,2) and O(,3), respectively, with 10 h at greater than 0.25 and 0.10 mu-l/l h SO(,2) and O(,3), respectively. Total doses for these plants were estimated to be 9.0 and 3.5 mu-l/l. h SO(,2) and O(,3), respectively. Comparison with plants exposed to ambient air indicated that exposure to SO(,2) and O(,3) reduced total yield per plant and dry mass per bean by as much as 36 and 15%, respectively. Since concurrent exposure to a much higher dosage of SO(,2) alone (20.2 mu-l. h) was observed in a separate experiment to have no significant effect on yield, O(,3), although present at moderately low levels, was probably responsible (alone or synergistically with SO(,2)) for the greatest reduction in seed size and yield.
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