บทคัดย่องานวิจัย

หมวดหมู่ : ฐานข้อมูลงานวิจัย

Uptake of imazalil by citrus fruit after postharvest application and the effect of residue distribution on sporulation of Penicillium digitatum.

Brown, G. E.; Dezman, D. J.;

Plant Disease Year: 1990 Vol: 74 Issue: 11 Pages: 927-930 Ref: 14 ref.

1990

บทคัดย่อ

Uptake of imazalil by citrus fruit after postharvest application and the effect of residue distribution on sporulation of Penicillium digitatum.

Imazalil applied to citrus fruits after harvest moved into the rind while the fruits were wet from the treatment. Imazalil was absorbed by the epicuticular wax and cuticle within a wetness period lasting 1-3 min, but <1% of it moved through the cuticle during this period. However, 30-45 min after fruits were dipped in imazalil (1000 micro g/ml) for 15 s, the fungicide was recovered from tissue deeper than 1 mm into the rind. Approx. 40% of the applied imazalil remained on the fruit surface after the fruits dried. At comparable treatment concn and times, significantly more imazalil adhered to fruits that were dipped than to fruits treated with a non-recovery spray over brushes saturated with the fungicide. Oranges absorbed more imazalil when treatment times were increased. Removal of the epicuticular wax from fruits before treatment with imazalil significantly reduced the control of sporulation of P. digitatum and increased the rate of movement of the fungicide into the rind but did not significantly alter total residues.