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2007•Chinese Journal of Tropical AgricultureRequires access

Biological Characteristics of Banana Curvularia Leaf Spot

Sang Liwei

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Abstract

Biological characteristics of Curvularia lunata(Wakker)Boedijn had been preliminarily studied. Optimal mediums for pathogen growth were PSA,PDA and OMA.For mycelia growth,sporulation and conidial germination of pathogen,optimal temperature was 25～30℃,and pH 5～9.Among the tested carbon and nitrogen resources,sucrose,glucose,carbamide,sodium nitrate,etc were beneficial for mycelia growth and sporulation.The conidia germination is strict in RH requirement:Conidia can germinate at RH 81%～98%,or have 100% germination rate in water.The effect of light is not obvious on pathogen growth.The lethal temperature for conidia is at 55℃(10min).

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What this paper is about

Biological characteristics of Curvularia lunata(Wakker)Boedijn had been preliminarily studied. Optimal mediums for pathogen growth were PSA,PDA and OMA.For mycelia growth,sporulation and conidial germination of pathogen,optimal temperature was 25～30℃,and pH 5～9.Among the tested carbon and nitrogen resources,sucrose,glucose,carbamide,sodium nitrate,etc were beneficial for mycelia growth and sporulation.The conidia germination is strict in RH requirement:Conidia can germinate at RH 81%～98%,or have 100% germination rate in water.The effect of light is not obvious on pathogen growth.The lethal temperature for conidia is at 55℃(10min).

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Available abstract

Biological characteristics of Curvularia lunata(Wakker)Boedijn had been preliminarily studied. Optimal mediums for pathogen growth were PSA,PDA and OMA.For mycelia growth,sporulation and conidial germination of pathogen,optimal temperature was 25～30℃,and pH 5～9.Among the tested carbon and nitrogen resources,sucrose,glucose,carbamide,sodium nitrate,etc were beneficial for mycelia growth and sporulation.The conidia germination is strict in RH requirement:Conidia can germinate at RH 81%～98%,or have 100% germination rate in water.The effect of light is not obvious on pathogen growth.The lethal temperature for conidia is at 55℃(10min).

Key concepts: Germination, Conidium, Spore, Mycelium, Curvularia, Spore germination, Biology, Pathogen

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