Responses of two plum (Prunus salicina Lindl) cultivars to postharvest ethylene treatment
Zuzunaga M., Rodríguez M., Serramo M., Riquelme F.
5th International Postharvest Symposium . Volume of Abstract . Verona, Italy 6-11 June 2004. page 7
2004
บทคัดย่อ
Responses of two plum (Prunus salicina Lindl) cultivars to postharvest ethylene treatment
Climateric and non-climacteric fruits differ in their responses to postharvest treatment with ethylene, or with other gases of equivalent activity.In climacteric fruits, these treatments accelerate the ripening process, the respiration rate and the auto-catalytic ethylene production.Non-climateric fruits do not present these effects.On the basis of this, the objective of this work was to study the response of two plums (
Prunus salicina, Lindl) cultivars (Golden Japan and
Santa Rosa) to ethylene treatments, and to evaluate their postharvest quality.Fruit were harvested at different stages during consecutive two weeks.Ethylene gas was applied at 1.0 and 10.0 ppm for 24 hours in closed containers.Measurements were made on ethylene production, skin color, texture acids and total soluble solids content.The results indicated that
‘Santa Rosa’ plums behaved as a climacteric fruit, where ethylene treatments stimulated the production of auto-catalytic ethylene, and the changes in colour and texture, and the effects were less notorious at the advanced stages of fruit ripening.
‘Golden Japan
’ plums behaved as a non-climacteric fruit, where ethylene treatments caused no stimulation in the production of auto-catalytic ethylene nor other indices related to fruit ripening, and only accelerated change in fruit colour.