Premium
Effects of Ozone on Soybean Nodules
Author(s) -
Tingey David T.,
Blum Udo
Publication year - 1973
Publication title -
journal of environmental quality
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.888
H-Index - 171
eISSN - 1537-2537
pISSN - 0047-2425
DOI - 10.2134/jeq1973.00472425000200030006x
Subject(s) - leghemoglobin , ozone , nodule (geology) , root nodule , glycine , legume , horticulture , dry weight , agronomy , biology , zoology , chemistry , nitrogen fixation , nitrogen , paleontology , biochemistry , organic chemistry , amino acid
Soybeans [ Glycine max (L.) Merr.] were exposed to ozone to determine if plant growth and nodulation would be reduced The plants were 3 weeks old from seed when exposed to 75 pphm ozone for 1 hour and were harvested at weekly intervals starting 4 days after exposure. The ozone treatment caused only a transitor reduction in top fresh weight. However, nodule number, nodule weight per plant, leghemoglobin content, and root growth were consistently reduced by the ozone treatment. The reductions in nodule weight per plant and leghemoglobin content per plant were directly correlated with the reduction in nodule number.