Occurrence Regularity of Fruit Physiological Disease Spongy Tissue in Zihua Mango （ Mangifera indica L.）

摘要

[Objective]The aim was to study the occurrence regularity of fruit physiological disease spongy tissue in Zihua mango(Mangifera indica L.).[Method]Main features of disease symptoms of Zihua mango fruit spongy tissue were investigated from 2002 to 2005,and the correlation between the incidence of Zihua mango fruit spongy tissue and its external factors(fruit maturity,fruit size and fruit yield per plant) was analyzed comprehensively.[Result]The main features of disease symptoms appeared depressed cavity in the middle or lower part of fruit,forming spongy-like cavity.Immature fruits basically had no incidence.The disease began to appear before 10 d of maturity.The disease incidence rate had extremely positive correlation with fruit weight,fruit vertical diameter or cross diameter.[Conclusion] The research provides reference for field diagnoses,identification,preharvest and postharvest uninjurous test of fruit physiological disease spongy tissue.