บทคัดย่องานวิจัย

หมวดหมู่ : ฐานข้อมูลงานวิจัย

Ethylene levels and fruit quality of silverleaf whitefly-infested dwarf cherry tomato.

Hanif-Khan, S.; Brecht, J. K.; Powell, C. A.; Stoffella, P. J.;

Proceedings of the Florida State Horticultural Society Year: 1999, publ. 2000 Issue: No. 112 Pages: 134-138 Ref: 16 ref.

2000

บทคัดย่อ

Ethylene levels and fruit quality of silverleaf whitefly-infested dwarf cherry tomato.

Tomato irregular ripening (TIR) is a disorder of fruit pigmentation induced by the infestation of silverleaf whitefly (SLW) (Bemisia argentifolii). Experiments were conducted to differentiate the postharvest characteristics of fruits from SLW-infested and uninfested (control) Florida Petite plants. Ethylene production by the SLW-infested fruits was only significantly greater than that of the control fruits on day 1 of measurement, when it was 2-fold higher. In general, the SLW-infested fruits were slightly lighter in colour than the control fruits from days 6 to 8. The control fruits developed a normal red colour while the SLW-infested fruits developed blotchy and streaky symptoms and were more of an orange-red colour. SLW-infested fruits were approximately 19% firmer than control fruits. Total soluble solid contents were not significantly different between the treatments. However, titratable acidity and pH measurements indicated that the SLW-infested fruits were more acidic than control fruits.

 SLW-infested fruits exhibited a high incidence of TIR symptoms, both externally (i.e. blotches and streaks) and internally (i.e. white tissues), as well as a star formation colour pattern at the blossom end of the fruit while control fruits had no TIR symptoms. The ripening process in the SLW-infested fruits was slower compared with the control fruits.