Longitudinal septa

To study the effect of different fungicides against Alternaria leaf spot of ber, fungus was isolated from the infected leaves of ber plant and cultural and morphological study was done through Poison Food Technique to find that the fungus was Alternaria alternata having branched and septate mycelium with light brown to blackish conidiophores in acropetal chain and the conidia having olive green to dark brown colour with transverse and longitudinal septa.

6p trinhthamhodang11 27-04-2021 15 1   Download

Cultural and morphological variability studies on three different media viz., Potato Dextrose Agar, Richard’s Synthetic Agar and Czapek’s Dox Agar revealed considerable variation among the isolates of A. burnsii indicated the existence of variability in the pathogen. Moreover, Potato Dextrose Agar and Czapek’s Dox Agar were found as an excellent media to support the growth and spore formation of isolates of A. burnsii, respectively.

14p cothumenhmong3 22-02-2020 18 0   Download