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茶扦插苗根腐性苗枯病菌腐皮镰孢生长温度范围 10~ 35℃ ,最适生长温度 2 5℃ ;在 2 7~31.5℃下培养时 ,RH 96 %产孢量最大 ;孢子发芽率则以在 30℃和 RH 10 0 %、2 5~ 2 7℃和 p H 5 .6~8.1时较高。黑暗、日光灯及黑暗与散光交替处理对菌丝生长和产孢无明显差异 ,但紫外灯处理可使菌丝生长显著减慢。孢子致死温度 5 8℃ 10 min。室温下病菌在病残体中可存活 18个月以上。该菌能利用多种单糖、双糖及醇类作碳源和利用 L -胱氨酸、草酸铵、尿素、DL -α-氨基丙酸作氮源。 L -赖氨酸不适于病菌生长和产孢。
The results showed that the growth of Fusarium oxysporum f. Sp. Was between 10 and 35 ℃ and the optimum temperature was 25 ℃. The germination rate of RH 96% was the highest at 21.7 ~ 31.5 ℃. The spore germination rate It is higher at 30 ° C and RH 10 0%, 25 to 27 ° C and p H 5 .6 to 8.1. Alternation of darkness, fluorescent lamp, darkness and astigmatism had no significant difference on mycelium growth and sporulation, but UV lamp treatment could significantly slow mycelial growth. Spore lethal temperature 5 8 ℃ 10 min. Bacteria at room temperature in the disease can survive more than 18 months. The bacteria can use a variety of monosaccharides, disaccharides and alcohols as a carbon source and the use of L - cystine, ammonium oxalate, urea, DL-α-amino acid as a nitrogen source. L-lysine is not suitable for germ growth and sporulation.