STUDY ON THE GROWTH OF THE BLACK TERMITE MUSHROOM (Xerula radicata) ON DIFERENT MEDIA IN THE SECONDARY AND THE TERTIARY PROPAGATION STAGES

Abstract

Black termite mushroom (Xerula radicata, Oudemansiella radicata, Hymenopellis radicata) is considered a food with many precious properties, delicious taste, high nutritional value, containing essential amino acids, rich in minerals, vitamins and trace elements. In the mushroom cultivation process, the mycelial culture stage plays a very important role. Nutritional medium is a factor that affects the development of the mycelium. This study aims to determine the most suitable secondary and tertiary propagation media for the growth and development of black termite mushroom (Xerula radicata). The results of the study on the secondary propagation media determined that the best seed spawn medium had the composition of rice grains, supplemented with 2% cornstarch, 3% rice bran, and 1% earthworm powder for the fastest mycelial length of 9.233 cm, the earliest day for mycelium to cover the bag of 30.07 days, the mycelial spreading speed was 0.399 cm/day, the mycelium developed white and thick, and the lowest infection rate was 11.11%. The tertiary propagation medium with ingredients including sawdust, supplemented with 5% cornstarch, 5% rice bran, 1% light flour, 5% vermicompost is most suitable for propagating for the fruiting body production of black termite mushroom,, showed the earliest number of days for orchid mycelium to cover the bag at 53.17 days, the average mycelial spreading speed was 0.395 cm/day, the lowest infection rate was 9.57%. The mycelium is white and dense.