บทคัดย่องานวิจัย

หมวดหมู่ : ฐานข้อมูลงานวิจัย

Bacterization of potatoes with Pseudomonas putida and its influence on postharvest soft rot diseases.

Colyer, Patrick Dennis

Thesis of Ph.D., University of Massachusetts Amherst, 1983, 121 pages

1983

บทคัดย่อ

BACTERIZATION OF POTATOES WITH PSEUDOMONAS PUTIDA AND ITS INFLUENCE ON POSTHARVEST SOFT ROT DISEASES.

Preplant and postharvest treatments of potatoes with a Pseudomonas putida isolate antagonistic to soft rotting Erwinias were evaluated for their effect on soft rot development of potato tubers.  Preplant treatments involved soaking certified "Superior" seed pieces in a suspension of the antagonistic P.  putida or a distilled water control.  Postharvest treatment involved soaking harvested tubers in a bacterial suspension or distilled water control.  The tubers were tested for soft rot potential by wounding each tuber ten times with a sterile toothpick and incubating anaerobically for 5 days.  Tubers were evaluated for soft rot potential by a visual rating scheme, percent weight loss due to soft rot, and the number of wounds from which rot developed.  Results indicate that soft rot potential can be reduced by 50% by preplant treatments, and by 75% by postharvest treatments with the antagonistic P.  putida.