Open AccessResponse of Glycine max in relation to nitrogen fixation as influenced by fungicide seed treatment
Author(s) -
B Anupama,
Nidhi Saxena,
Singh Kiran
Publication year - 2005
Publication title -
african journal of biotechnology
Language(s) - English
Resource type - Journals
ISSN - 1684-5315
DOI - 10.5897/ajb2005.000-3122
Subject(s) - thiram , nitrogenase , fungicide , nitrogen fixation , dry weight , glycine , ascorbic acid , chemistry , horticulture , nitrogen , agronomy , rhizobium , leghemoglobin , seed treatment , biology , botany , food science , biochemistry , root nodule , inoculation , amino acid , organic chemistry , germination
Glycine max – Rhizobium interaction is a well known symbiotic association occurring in nature and responsible for biological nitrogen fixation. Thiram a well-known fungicide has been in practice as seed dressing in order to prevent fungal colonization. In the present study the effect of various thiram concentrations is investigated. Thiram concentration beyond 500 μg/ml was observed to be highly toxic with respect to plant growth factors and rhizobial infection to the G. max . The nodulation, nodule dry weight, nitrogenase activity were observed to be maximum at 100 μg/ml of thiram. The study is useful in determining the threshold concentration of fungicide for soybean seed dressing for effective nitrogen fixation and crop yield. African Journal of Biotechnology Vol. 4 (7), pp. 667-671, 2005
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