บทคัดย่องานวิจัย

หมวดหมู่ : ฐานข้อมูลงานวิจัย

Changes in soluble reducing sugars and pH in raspberry blossoms, flowers and fruits, at different phenological stages: relationship to infection by Botrytis cinerea Pers.

Campos, G.; Montealegre, J. R.; Perez, L. M.;

Fitopatologia Year: 1995 Vol: 30 Issue: 3 Pages: 143-147 Ref: 11 ref.

1995

บทคัดย่อ

Changes in soluble reducing sugars and pH in raspberry blossoms, flowers and fruits, at different phenological stages: relationship to infection by Botrytis cinerea Pers.

ABSTRACT :

 

Red raspberry fruits are infected by B. cinerea from the early flowering stage in the field, but disease is apparent postharvest. To establish the presence of soluble reducing sugars (SRS) and acidity (pH) of red raspberry fruits at different phenological stages of B. cinerea infection, changes in SRS and pH were studied from the small blossom to the ripe fruit stages in the cv. Heritage. In addition, the development of B. cinerea at different pH values was studied. A correlation was found between increased presence of SRS and development of B. cinerea in the field, whereas pH values found in all the stages tested did not correlate with infection and disease development. These results explain why the disease symptoms induced by B. cinerea in red raspberry fruits are visible much later than the effective infection of plant tissue in the field.