Evaluation of button mushroom Agaricus bisporus (Lange)Imbach germplasm for yield potential under Bihar condition
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Date
2021
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DRPCAU, PUSA
Abstract
The present work entitled “Evaluation of button mushroom Agaricus bisporus (Lange)Imbach germplasm for yield potential under Bihar condition” was carried out at Advance Centre of Mushroom Research, Dr. Rajendra Prasad Central Agricultural University, Pusa, Samastipur,Bihar as well as Mushroom Unit, T.C.A., Dholi. The button mushroom germplasms viz., IVTB-18-01, IVTB-18-03, IVTB-18-05, IVTB-18-09 and the local strain AB-18-03 were evaluated for different growth characteristics including growth on different media viz., Potato Dextrose Agar (PDA), Malt Extract Agar (MEA), Yeast Extract Potato Dextrose Agar (YEPDA), and Compost Extract Agar (CEA) at 7th DAI and 14th DAI under invitro conditions. The Compost Extract Agar media showed the best mycelial growth i.e.39.7 and 86.9 mm after 7th DAI and 14th DAI respectively. The maximum colony diameter was observed in the germplasm IVTB-18-09 after 7th DAI (44.5 mm) and 14th DAI (90.0 mm). The minimum number of days for spawn run in wheat grains were recordedwithIVTB-18-03 (15 days) while spawn runin compost was recorded to be minimum withIVTB-18-09 (15 days). The germplasm IVTB-18-09 was observed with minimum number of days (10 days) taken for casing to pinhead formation, minimum number of days (18 days) for casing to first flush harvest, maximum pileus diameter (44.5 mm) and the
highest stipe diameter(52.1 mm), while the germplasm IVTB-18-05 had a maximum stipe length of (20.2 mm). The highest number of fruiting bodies (167 nos.), yield (2298 g)and biological efficiency (32.8%) were obtained from the germplasm IVTB-18-09. The minimum green mould, bacterial blotch, and inky cap incidence occurred in the local strain AB-18-03. Finally concluded that the germplasm IVTB-18-09 wasfound to be suitable for cultivation under the Bihar condition.