Examinando por Autor "Rutayisire, Umuraza Noella"

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Production yield of Pleurotus ostreatus (Agaricales: Pleurotaceae) using agricultural organic wastes as substrates.
(Universidad EARTH, 2020-12) Abizeyimana, Yvette; Rutayisire, Umuraza Noella; Gillen Brenes, Luis E.
Edible mushrooms are one of the easiest crops to grow and in some countries; mushrooms has been considered as a cash crop. There are many ways to grow mushrooms with different systems, the most common one is the use of substrates such as wood chips, straw hay, and rice husks. The objective of this investigation is to examine the alternative uses of agro-industry wastes by considering the circular economy to grow mushrooms (Pleurotus ostreatus) using seven different substrates. Pleurotus ostreatus belongs to the family of Pleurotaceae. This specie is the second most-produced and third-largest commercialized mushroom worldwide. The experiment used seven substrates to grow edible mushrooms with five repetitions each, the substrates were coconut waste; pineapple waste; coffee husks; Coconut waste mixed with pineapple waste; coconut waste mixed with coffee waste; coffee waste mixed with pineapple waste, and straw hay as control. There was no significant difference (p > 0,05) in coffee; PC (pineapple and coconut), CC (coffee and coconut), and CP (coffee and pineapple). However, the variation of the amount of fruit bodies produced has shown that statistically there were significant differences between each of the substrates, and coconut was the one that had the greatest variation in comparison to the others, where the rest of the substrates presented low variations. In addition, the production yield had a significant difference (P= 0,0001), the highest yield was observed in coconut substrate with an average of 27 g, the pineapple was the second, however, coffee, CC, and CP did not produce due to various factors which were not identified, for instance caffeine concentration is one of the factors that may inhabit the grow of mycelium. This project came to the conclusion that coconut waste was the best with the highest production yield compared to the rest of the substrates and even to the straw hay as the most common substrate that is being used in the cultivation of mushroom. To avoid any kind of contaminants or other factors that might lead to contamination, it is highly recommended to maintain a high level of hygienic, especially production place, equipment and to use good quality of inoculants (seeds) which support to improve productivity.