Studies on mycoflora of chilli seed
Dhawale, S.D.; Kodmelwar, R.V.
Seed Research 6(1): 23-30
ISSN/ISBN: 0379-5594 Accession: 000756184
Among seed mycoflora, the average incidence of Aspergillus niger was the highest, and Chaetomium sp. the lowest. Greatest loss in seed germination in a plate study was due to the effect of combined fungi (76.57%) followed by Colletotrichum capsici (73.34%), Fusarium sp. (70%), Alternaria sp. (66.67%) Rhizoctonis bataticola (56.67%), Curvularia sp. (53.34%). Other fungi showed 30-46.67% loss as compared to control (6.67%). In a pot experiment, highest seedling mortality was due to the combined effect of all isolates, followed by C. capsici (77.78%), Fusarium sp. (75.56%), Alternaria sp. (71.01%), R. bataticola (60%) and Curvularia (55.56%). The culture filtrate of all the seed isolates also markedly reduced seed germination. The filtrate of A. niger induced 30% seed germination. Seed extract and seed coat leachate induced variable inhibitory effects. Higher humidity levels reduced germination more than low humidity levels did. Interval of storage also played a significant role in reducing germinability.