Survey on seed-borne fungi of vegetable

Survey on seed-borne fungi of vegetable

1979

A:PS

Twelve seed-borne fungi on onion seed, 14 seed-borne fungi on radish seed, nine seed-borne fungi on cabbage seed, seven seed-borne fungi on middle season Chinese cabbage, 10 seed-borne fungi on late season Chinese cabbage, and 10 seed-borne fungi on black salisfy were isolated. Alternaria porri and Stemphylium botryosum were the fungi which reduced the germinability of onion seed in culture. Hypha of S. botryosum in seed has been observed through thin-sectioned onion seed. Botrytis cinerea was found on onion plants at Jiow-Shen. Alternaria brassicicola was the commonest pathogen isolated from cruciferous plants (radish, middle and late season Chinese cabbage, cabbage) and their seeds. Hyphae and conidia of this pathogen can be seen outside and inside radish seeds. Black spot of cruciferous plants caused by Alternaria brassicae was found at these experimental fields, but this fungus has not been isolated from seeds. The same was true for the pathogen of downy mildew. Seeds of black salisfy were very sensitive to the treatment of 1% sodium hypochlorite for five minutes. [AS]

v.21(2):206-219, PLANT PROTECTION BULLETIN [TW]

Research > Published Articles