Riad zidan(1), Jihan motawaj(2), Hegazi mando(3), Samaher Ibrahim(1)*
(1). Department of Horticulture, Tishreen University, College of Agriculture, Lattakia, Syria.
(2). General Organization for Seed Multiplication
(3). National Commission for Biotechnology (NCBT), Damascus, Syria.
(*Corresponding author: Samaher Ibrahim. E-mail: smhribrahem@gmail.com).
Received: 22/10/2023 Accepted: 13/02/2024
Abstract:
Agaricus bisporus , by repeating two experiments in the years 2022-2023. It included five treatments: control (without sodium nitrate) , sodium nitrate at concentrations of 2, 3, 4, and 5 g/liter to the malt agar medium, with the aim of studying its effect on the growth of mycelium the mother culture’s. The research was carried out with a completely randomized block design.The results of the average repetition of the experiment twice in a row in the years 2022-2023 showed that all sodium nitrate addition treatments were superior to the control in terms of the start date of mycelium growth, growth speed, and growth coefficient. As for the diameter of the fungal colony, the treatment with the addition of sodium nitrate concentration of 5 g/L was superior, reaching 57.2 mm compared to the control, 52.2 mm. It was also superior in the time period required for the complete growth of the fungal colony, reaching 12.87 days, compared to 19.17 days for the control.
Keywords: agricultural mushrooms, sodium nitrate, supporting the mother culture, growth speed, growth coefficient.
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