The influence of soil moisture on macroscopic sulfur dioxide injury to pinto bean foliage

J. A. Davids, D. D. Davis, S. P. Pennypacker

Research output: Contribution to journalArticle

5 Citations (Scopus)

Abstract

The influence of soil moisture stress on sulfur dioxide (SO2) injury to pinto bean foliage was investigated in relation to stomatal conductance rate, soil moisture content, and plant water potential. Pinto bean plants were grown at four soil water potentials (-1/3, -1, -3, and -5 atm) and exposed to 5,720 μg/m3 (2.2 ppm) SO2 for 3 hr. Macroscopic injury was severe on plants grown at -1/3 and -1 atm soil water potential and negligible on plants grown at -3 and -5 atm water potential. Injury was highly correlated with percentage of soil moisture, and both injury and soil moisture were highly correlated with stomatal conductance rate and water potential of the plants. The duration of soil moisture stress (1, 2, or 3 days) did not affect the amount of macroscopic injury induced by SO2, the stomatal conductance rate, or plant water potential. Stomatal conductance rates of plants grown at -1/3 and -1 atm soil water potential decreased when the plants were exposed to SO2, while those of plants grown at -3 and -5 atm soil water potential were not affected by exposure to SO2.

Original languageEnglish (US)
Pages (from-to)1208-1212
Number of pages5
JournalPHYTOPATHOLOGY
Volume71
Issue number11
DOIs
StatePublished - Jan 1 1981

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pinto beans
sulfur dioxide
soil water potential
soil water
water potential
stomatal conductance
leaves
soil water content
duration

All Science Journal Classification (ASJC) codes

  • Agronomy and Crop Science
  • Plant Science

Cite this

Davids, J. A. ; Davis, D. D. ; Pennypacker, S. P. / The influence of soil moisture on macroscopic sulfur dioxide injury to pinto bean foliage. In: PHYTOPATHOLOGY. 1981 ; Vol. 71, No. 11. pp. 1208-1212.
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The influence of soil moisture on macroscopic sulfur dioxide injury to pinto bean foliage. / Davids, J. A.; Davis, D. D.; Pennypacker, S. P.

In: PHYTOPATHOLOGY, Vol. 71, No. 11, 01.01.1981, p. 1208-1212.

Research output: Contribution to journalArticle

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