Work

Carrot Injury and Yield Response to Ozone1

Year: 1976

Type: article

Abstract: Container-grown plants of carrot ( Daucus carota L.) exposed intermittently to 0.19 or 0.25 ppm ozone throughout their growth increased in plant height and total number of leaves in spite of the development of chlorotic leaves. Leaf dry weight was unaffected by ozone, but root dry matter decreased 32 to 46%. As a result, the root weight/total dry weight ratio and root/shoot ratio declined significantly in the presence of ozone. A regression of root dry weight on chlorotic leaf dry weight explained 35% of the root loss and predicted that 1.5 g of root tissue is lost for every g of chlorotic leaf dry weight caused by ozone injury.

Source: Journal of the American Society for Horticultural Science

DOI: 10.21273/jashs.101.6.638

Authors: James P. Bennett, Ronald J. Oshima

Institutions: University of California, Riverside, Statewide Air Pollution Research Center, University of California, Davis

Language: English

Topic: Plant responses to elevated CO2

Subfield: Plant Science

Field: Agricultural and Biological Sciences

Domain: Life Sciences

SDG: Zero hunger

Open Access status: hybrid

Estimated APC paid: $3,500