Improvement of gray oyster mushroom [Pleurotus ostreatus (Jacq. ex.fr.) Kummer] by means of hybridization
1997
Putraporn Isaratha | Wichian Pooswang (Chiang Mai Univ., Chiang Mai (Thailand). Faculty of Agriculture. Dept. of Horticulture)
Mono-mono crossing between CM5, gray or winter type and hybrid variety, KDCM4(A4), was done for the gray oyster mushroom. Yield of nine selected new hybrid (Q1-Q9) lines with good shape and quality were compared. Six high yield lines Q1 to Q6 were selected to be used in further study. Q1 gave the highest yield. Di - mon mating was done between monokaryons from Q1 and dikaryons from Q1-Q6 and five other parent varieties as KD1, KD2, KDCM2, KDCM3, KDCM4(A4). Again, nine lines with good shape and quality were selected and their yields were compared with the parents varieties of gray CM5 and white or florida (CM1) type oyster mushroom. At room temperature, florida type oyster mushroom gave higher yield than all high yield di-mon hybrid lines. However, these di-mon lines gave the same level of yields as the original gray CM5 mushroom grown in the cool room.
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