บทคัดย่องานวิจัย

หมวดหมู่ : ฐานข้อมูลงานวิจัย

The importance of wounds in infection of pear fruit by Phialophora malorum and the role of hydrostatic pressure in spore penetration of wounds.

Sugar, D.; Spotts, R. A.;

Phytopathology Year: 1993 Vol: 83 Issue: 10 Pages: 1083-1086 Ref: 32 ref.

1993

บทคัดย่อ

The importance of wounds in infection of pear fruit by Phialophora malorum and the role of hydrostatic pressure in spore penetration of wounds.

Pear fruits (cv. Bosc) were not infected by P. malorum via lenticels under conditions of bruising, hydrostatic pressure or a 6 month exposure to a range of spore concn without puncture wounding. Methylene blue solution penetrated approx. 2% of fruit lenticels examined. Dye penetration into fruit was facilitated by artificial bruising of lenticels. Hydrostatic pressure from immersion of fruit in aqueous suspensions of P. malorum spores at depths of 10-100 cm influenced the infection frequency in fruit puncture wounds <2 mm in diam. Larger wounds were infected independently of immersion depth. Spore germination was stimulated in water in which wounded fruit or fruit with epicuticular wax removed had been soaked compared with water in which whole fruit had been soaked.