(46(2):142-157)The New Hybrid Strain of Shiitake “Tainung No. 1”

香菇「臺農一號」係於1986年以段木栽培品系SL19與木屑包栽培品系271雜交而來。該品系由許多雜交品系中篩選而來，經過1987～1988進行品種比較試驗，1989～1990進行區域試驗及1991～1994進行大規模之栽培試驗後，顯示其具有經濟栽培之價值，並於1996年3月經農林廳命名審查通過。正式命名為「臺農一號」，商品名稱為「白早」及「紅殼」。本品系菇體中型圓整，柄短且肉厚，極易形成花菇，乾燥比為1：9－10，每萬包可生產328～342公斤之鮮菇。栽培時菌絲生長勢強，不易爛包，菇體耐貯存及不易變色，是作為鮮銷用之良好品系。Shiitake strain “Tainung No.1” was named after the hybridized strain M290 by the Taiwan Agricultural Research Institute in 1996. The strain M290 was derived from a cross made in 1986 between a log-strain SL19 and a sawdust-strain 271. Then, it was selected out in 1987 for a series of growth and yield trials at different locations between 1987 and 1988, regional yield trials between 1989 and 1990 ; large scale of yield trials between 1991 and 1994. The strain M290 was found with economic yield and high quality of fruiting bodies. Therefore, it passed the naming regulation rules of the Taiwan provincial Department of Agriculture and Forestry in march 1996. It was given the comon name “Tainung No.1”, with a trade name of “early white” or “red cap”. This strain is characterized by the medium and round shape of fruiting bodies; short pileus and thick caps; and easy to form flowery caps. Each 9 to 10 kgs of fresh fruiting bodies can be dried to get one kg of dried material. Ten thousand bags of sawdust medium can produce 328-342 kgs of fresh fruiting bodies. Strong mycelial growth and less rotted bags were observed during the growth period. Fruiting bodies were found with long shelf-life because the cap color remained unchanged. It is a good strain for fresh marketing use