| morphological, pathological and molecular variability in botryodiplodia theobromae (botryosphaeriaceae) isolates associated with die-back and bark canker of pear trees in punjab, india. | thirteen isolates of botryodiplodia theobromae collected from pear varieties grown in various regions of punjab were studied for morphological, pathological and molecular characterization. the mycelial growth of b. theobromae isolates was classified as fluffy or depressed, uniform to irregular and cottony white turning to black. colony growth rate varied from 19.1 to 24.9 mm per day. pycnidia were produced either on the edge, centered or scattered on petri dishes after 20 to 34 days of incubatio ... | 2010 | 20603807 |