ศูนย์นวัตกรรมเทคโนโลยีหลังการเก็บเกี่ยว

Influence of temperature stress on color development, respiration rate, and physiological injury in harvested tomato.

Inaba, M.; Hamauzu, Y.; Chachin, K.;

Bulletin of the University of Osaka Prefecture. Series B, Agriculture and Life Sciences Year: 1996 Vol: 48 Pages: 1-11 Ref: 23 ref.

1996

บทคัดย่อ

Mature green tomatoes (cv. Saturn) were stored in air with or without ethylene (C2H4) treatment (100 ppm) at 5, 10, 15, 20, 25, 30, 35 or 40 deg C. Breaker and light pink fruits were stored at 25, 30 or 35 deg without C2H4. During storage, respiration rate, C2H4 production and colour development were measured and found to be suppressed at 35 deg even though the tomatoes did not show heat injury. At 40 deg , there was no disappearance of green surface colour and no significant C2H4 production. Exogenous C2H4 increased respiration rate at all temperatures; however, colour development was poor above 30 deg and below 10 deg . C2H4 accelerated chilling injury at 5 and 10 deg and heat injury at 40 deg as indicated by rapid decay. Tomatoes stored with or without C2H4 showed one breaking point at about the same temperature between 10 and 15 deg on respiration Arrhenius plots. As maturation proceeded, maximum respiration, the variance in respiration rates and C2H4 production at 35 deg increased, indicati

ng that sensitivity to high temperature stress increased with ripening. Carotenoids accumulated in detached cv. Raiko fruits during ripening to almost the same extent as in attached fruits which ripened under fluctuating temperatures in the field and in fruits held at 20 deg alternating with 35 deg at daily intervals.