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Inoculation and Survival of Azotobacter chroococcum on Stored Wheat Seed
Author(s) -
Ridge E. H.
Publication year - 1970
Publication title -
journal of applied bacteriology
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.889
H-Index - 156
eISSN - 1365-2672
pISSN - 0021-8847
DOI - 10.1111/j.1365-2672.1970.tb05252.x
Subject(s) - azotobacter chroococcum , agar , inoculation , biology , horticulture , agar plate , azotobacter , botany , bacteria , genetics
S ummary . The survival of Azotobacter chroococcum cultured on agar or in a peat‐liquid medium and inoculated on to wheat seed was examined during seed storage of up to 40 weeks at room temperature. The ‘half life’ of peat‐grown cells was 10–15 weeks, and that of an agar‐grown inoculum 8–10 weeks, on seed stored in plastic bags. This was reduced to 4 weeks when agar‐grown cells were stored on seed open to the air. The age of agar‐grown culture between 7 and 40 days did not affect survival for up to 20 weeks. The higher numbers of Azotobacter /seed obtained with agar‐grown cells outweighed the advantage gained by the slightly better survival rate of peat‐grown cells.