บทคัดย่องานวิจัย

หมวดหมู่ : ฐานข้อมูลงานวิจัย

Sweet potato whitefly and tomato irregular ripening: a research review.

Stoffella, P. J.; Powell, C. A.;

Proceedings of the Interamerican Society for Tropical Horticulture Year: 1994 Vol: 38 Pages: 240-243 Ref: 8 ref.

1994

บทคัดย่อ

Sweet potato whitefly and tomato irregular ripening: a research review.

ABSTRACT

Bemisia tabaci (SPWF) feeding has been associated with tomato (Lycopersicon esculentum) irregular ripening (IR) fruit symptoms. A review is presented to report investigations on SPWF and tomato IR. The influence of the insecticide endosulfan and aluminium painted polyethylene was evaluated for control of SPWF adults and the incidence of tomato 'Sunny' IR under field conditions in Florida. Endosulfan sprays reduced SPWF adult populations and reduced the percentage of fruit with IR symptoms. Aluminium painted polyethylene mulch had a negligible influence on SPWF adult populations or percentage of fruit with IR symptoms. Mature green tomato 'Sunny' fruits exposed to SPWF under field conditions were either ripened at 20-22 deg C or stored at 10-13 deg C for 3 weeks and then ripened at 20-22 deg C and evaluated for IR symptoms. Incidence of fruit with interior (29-51%) or exterior (59-73%) IR symptoms was similar with or without storage prior to ripening. However, IR exterior symptoms disappeared on

29 to 39% of the fruit that developed exterior IR within the postharvest ripening period. Fruit with exterior IR at the end of the ripening period (red-ripe stage) had interior IR symptoms. Tomato cultivars were evaluated for tolerance to exterior or interior fruit IR symptoms for 2 seasons under field conditions. Fruit with exterior IR symptoms ranged from 8 to 34% and interior IR symptoms from 38 to 62%.