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形态学观察及致病性比较结果表明 ,大青枣炭疽病由胶孢炭疽菌 (Colletotrichumgloeosporioides)侵染所致。该菌的菌丝体生长和分生孢子形成的温度范围分别为 10～ 34℃与 16～31℃ ,最适温度分别为 2 5～ 2 8℃与 2 8℃ ;菌丝体生长和分生孢子形成的pH值范围分别为 2～ 12与 3～ 11,最适pH值分别为 5～ 6与 4 ;菌丝体生长和分生孢子形成易受光环境影响 ;菌丝体生长对维生素的要求不严格 ,但分生孢子形成对维生素敏感
Morphological observation and pathogenicity comparison showed that anthracnose of Daqingzao was infected by Colletotrichum gloeosporioides. The temperature range of mycelial growth and conidia formation was 10 ~ 34 ℃ and 16 ~ 31 ℃, respectively, and the optimum temperature was 25 ~ 28 ℃ and 28 ℃ respectively. The mycelium growth and meristem The pH range of sporulation was 2 ~ 12 and 3 ~ 11 respectively, and the optimum pH value was 5 ~ 6 and 4, respectively. The mycelial growth and conidial formation were easily affected by light environment. The requirement of vitamins for mycelial growth Not strict, but conidial formation is sensitive to vitamins