บทคัดย่องานวิจัย

หมวดหมู่ : ฐานข้อมูลงานวิจัย

In search of an effective postharvest treatment for the control of postharvest diseases of mangoes.

Lonsdale, J. H.;

Yearbook - South African Mango Growers' Association Year: 1992 Vol: 12 Pages: 32-36 Ref: 5 ref.

1992

บทคัดย่อ

In search of an effective postharvest treatment for the control of postharvest diseases of mangoes.

The results of studies between 1990 and 1992 are discussed. Dipping fruits of various cultivars in hot water (55 deg C for 2 min) plus prochloraz (40.5-81.0 g/hl) effectively controlled anthracnose [Glomerella cingulata] and soft brown rot [Nattrassia mangiferae] in fruits stored for 28 days at 11 deg . Prochloraz was less effective against soft brown rot when applied at ambient temperature. A 5-min prochloraz dip at 55 deg , or a hot water dip at 55 deg for 5 min followed by an ambient-temperature dip in prochloraz for 20 s, proved phytotoxic although 2-min dips at 55 deg or 5-min dips at 50 deg did not do so. Hot water dips (52 deg for 5 min) followed by ambient sprays or dips of chloramizol [imazalil] sulphate or quazatine at 100 g/hl effectively controlled soft brown rot. Modified atmosphere packaging was found to control anthracnose but not soft brown rot. A moderate dose of gamma -irradiation (0.75 kGy) plus hot water dipping gave excellent control of both diseases, but fruits treated in this manner were more susceptible to lenticel damage.