. Bulletin. Agriculture -- New Hampshire. 118 N. H. AGR. EXPERIMENT STATION [Bulletin 144 Thick walled spores known as chlamydospores are common (Fig. 11). These probably assist in carrying the disease over the win- ter. The mycelium of the fungus probably plays a part in this connection also, as it has been found that it is not killed by a prolonged exposure at very low temperatures. The fungus grows well on various media in laboratory cultures. The manner of spore production in these cultures is shown in Fig. 12. Small knobs are produced on the side of the hyphae, and from Fig. 10.—Spores of
. Bulletin. Agriculture -- New Hampshire. 118 N. H. AGR. EXPERIMENT STATION [Bulletin 144 Thick walled spores known as chlamydospores are common (Fig. 11). These probably assist in carrying the disease over the win- ter. The mycelium of the fungus probably plays a part in this connection also, as it has been found that it is not killed by a prolonged exposure at very low temperatures. The fungus grows well on various media in laboratory cultures. The manner of spore production in these cultures is shown in Fig. 12. Small knobs are produced on the side of the hyphae, and from Fig. 10.—Spores of cyi- these ouc spore after an- ZnZtTJZl • other is developed and cut off. These spores germinate readily when placed on fresh media (Fig. 13). By means of the application of spores from laboratory cultures spots have been produced both on stored apples and on those. Please note that these images are extracted from scanned page images that may have been digitally enhanced for readability - coloration and appearance of these illustrations may not perfectly resemble the original New Hampshire Agricultural Experiment Station. [Hanover, N. H. ] : New Hampshire Agricultural Experiment Station
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