Influence of storage fungi on soybean seed germination
1987
Bajit, L.C.
There were 17 species of Aspergillus and one unidentified Penicillium sp. found associated with soybean seeds in both blotter and malt extract agar (MEA) tests. All the fungi found associated with dead germinated seeds were also noted on MEA. However, only 53% of these fungi growing on MEA were observed on germinating seeds. Some fungi were found growing on chlorox-disinfested dehulled seeds plated on MEA. These fungi appear to penetrate into the embryo through the hilium. Percent seed germination of the various soybean varieties ranged from 4.5% to 82.0%. There seemed to be a direct correlation between length of storage at room temperature and seed viability. The longer the storage period, the lower the percent germination. The maximum storage time for seeds stored at room temperature appeared to be 3-5 months at which time the percent germination was 82.0 to 97.0 percent. The frequency association of some fungi with the seeds remained unchanged with storage time. Seeds stored to planting could be stored at 7.6% and 9.4% moisture content at 28 degrees Celsius - 33 degrees Celsius only up to eight weeks after harvest.
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