+ Translate

Physiological response to chilling temperatures of intermittently warmed cucumber fruit

, : Physiological response to chilling temperatures of intermittently warmed cucumber fruit. Journal of the American Society for Horticultural Science 115(2): 256-261

Symptoms of chilling injury were reduced by intermittently warming cucumber fruit (Cucumis sativus L. cv. Poinsett 76) from 2.5 to 12.5C for 18 hr every 3 days. Fruit continuously held at 2.5C for 13 days developed severe pitting and decay after 6 days at 20C, while fruit continuously held at 12.5C or intermittently warmed showed no pitting or decay during subsequent holding at 20C. The increased rate of C2H4 production during the first warming period, from 12 nl .cntdot. (kg .cntdot. hr)-1 at 2.5C to 201 nl .cntdot. (kg .cntdot. hr)-1 at 12.5C, was significantly greater than that during the second or third warming periods, i.e., 53 to 98 and 53 to 55 nl C2H4/(kg .cntdot. hr), respectively. Respiration increased 3-fold during the initial warming period, but only 2-fold during subsequent warming periods. Leakage of cellular ions from excised disks of mesocarp tissue was around 6% and 10% of the total ion content of the tissue for control and intermittently warmed fruit, respectively, but increased to 17% for fruit that were continuously held at 2.5C for 10 days. After 320 hr (three cycles) of chilling and warming, chilled fruit showed significantly lower ethylene-forming enzyme activity than the control or intermittently warmed fruit. Fruit held at 12.5C contained 0.09 to 0.34 nmol .cntdot. g-1 of ACC. ACC levels were 6.23 nmol .cntdot. g-1 in fruit exposed to 2.5C for 320 hr. In contrast, intermittently warmed fruit only showed 30% and 27% increases in ACC content during the first and second warming periods, respectively. Periodic warming appears to allow chilled fruit to acclimate to subsequent periods of chilling. Chemical names used: 1-aminocyclopropane-1-carboxylic acid (ACC).

(PDF 0-2 workdays service)

Accession: 001909909

Submit PDF Full Text: Here

Submit PDF Full Text

No spam - Every submission is manually reviewed

Due to poor quality, we do not accept files from Researchgate

Submitted PDF Full Texts will always be free for everyone
(We only charge for PDFs that we need to acquire)

Select a PDF file:

Related references

Martinez Romero, D.; Serrano, M.; Valero, D., 2003: Physiological changes in pepino (Solanum muricatum Ait.) fruit stored at chilling and non-chilling temperatures. The sensitivity of pepino (Solanum muricatum Ait. cv. Sweet Long) fruit to chilling injury (CI) as well as some physiological implications were studied. Three ripening stages (from immature to ripe) were used: green (G), light-green (LG) and yello...

Kent M.W., 1982: Storage of cucumber fruit at chilling temperatures. Hortsciencesect. 2: 527

Eaks, I.L.; Morris, L.L., 1956: Respiration of Cucumber Fruits Associated with Physiological Injury at Chilling Temperatures. The respiratory responses of cucumbers to chilling and non-chilling temperature indicates that the course and rate of metabolism was changed as a result of chilling injury. At non-chilling temperature, the rate of CO2 production decreased with dur...

Garber, M.P., 1977: Effect of Light and Chilling Temperatures on Chilling-sensitive and Chilling-resistant Plants. Pretreatment of Cucumber and Spinach Thylakoids in Vivo and in Vitro. The effects of chilling temperatures, in light or dark, on the isolated thylakoids and leaf discs of cucumber (Cucumis sativa L. "Marketer") and spinach (Spinacia oleracea L. "Bloomsdale") were studied. The pretreatment of isol...

Andersen, C.R., 1984: Response of cucumber cotyledons to chilling temperatures. Ion leakage rates were measured in excised cotyledons (from different cultivars) which had been exposed to 2 degrees C and 100% RH for up to 17 days. The cultivar with chilling-sensitive fruits showed the most rapid increase in ion leakage; leakag...

Cabrera, R.M.; SaltveitMikal E.Jr; Owens, K., 1992: Cucumber cultivars differ in their response to chilling temperatures. The physiological responses associated with chilling of horticulturally mature cucumber (Cucumis sativus L.) fruit were examined using 13 lines that differ in chilling sensitivity. The low correlation coefficient between pitting and decay suggeste...

Andersen C.R., 1984: Response of cucumber cucumis sativus cotyledons to chilling temperatures. Plant Physiology (Rockville) 75(SUPPL 1): 93

McCollum, T.G.; Doostdar, H.; Mayer, R.T.; McDonald, R.E., 1995: Immersion of cucumber fruit in heated water alters chilling-induced physiological changes. Cucumber (cv. Dasher 3) fruits were immersed in water at 25, 38 or 42 degrees C for 30 min prior to storage at 12 degrees (non-chilling temperature) or 2.5 degrees (chilling temperature) for 2 weeks to determine the effects of these treatments on...

Kang, H.M.; Park, K.W.; Saltveit, M.E., 2002: Elevated growing temperatures during the day improve the postharvest chilling tolerance of greenhouse-grown cucumber (Cucumis sativus) fruit. Growing cucumber fruit in a greenhouse at elevated temperatures during the day increased their tolerance to postharvest chilling. Fruit grown with an average day temperature of 32 +/- 1 degrees C (high temperature) had a storage life (i.e. time to...

Wang LanJu; Song ShangWei; H.Q.ngXia, 2003: Effects of different temperatures and plastic film package on fruit chilling injury and physiological changes in eggplants. In experiments carried out in 2001 and 2003, the effects of different temperatures and plastic film packaging (PFP) on chilling injury (CI) occurrence, electrolyte leakage rate (ELR), respiration rate and ascorbic acid content in aubergine fruits...