scholarly journals SENSITIVITY OF CUCUMBER LINES TO CHILLING INJURY

HortScience ◽  
1990 ◽  
Vol 25 (9) ◽  
pp. 1174b-1174
Author(s):  
Roberto M. Cabrera ◽  
M.E. Saltveit ◽  
K. Owens
Keyword(s):  
Cucumis Sativus ◽  
Filter Paper ◽  
Chilling Injury ◽  
Ion Leakage ◽  
Ion Content ◽  
Cucumis Sativus L ◽  
Mannitol Solution ◽  
Cucumber Fruit ◽  
Resistant Lines ◽  
Solution Bathing

Cucumber fruit (Cucumis sativus L.) of 13 cultivars were chilled at 2.5C for up to 10 d, Pitting scores after 8 d at 2.5C and 6 d at 20C ranged from 0.0 (none) in `HP 138' to 7.7 (severe) in `Poinsett 76' fruit. Ion leakage, as the increase in conductivity in a 0.3 M mannitol solution bathing excised disks of mesocarp tissue and expressed as % of the total ion content of the tissue, was lowest in `MDR I' (4.5%) and highest in `HP 159' (11%) after 6 d at 2.5C. After 10 d at 2.5C, however, the lowest was in `Navajo' (5.5%) and the highest in `Poinsett 76' (15%). Resistant lines, e.g., `Dasher II' and `HP 138' showed ion leakage of 7.6% and 5.4% after 6 d, and 8.4% and 7.5% after 10 d. Exudates from cut fruit were collected on filter paper. The fresh and dry wt of exudates from fruit held 8 d at 12.5C ranged from 144 to 346 mg and 16 to 47 mg, respectively. Conductivity of the exudates was highest in `PS 34885' (177 uSiemen/cm) and lowest in `Rawa' (83 uS/cm). The fresh wt of exudate from 6 lines ranged from 99 to 164 mg after 10 d at 2.5C followed by an additional 2.4 d at 20C. The % solid-of the exudates was higher in more resistant lines, e.g., `Dasher II' (8%) and `HP 138' (4%) than in more sensitive lines, e.g., `Poinsett 76' (2%) and `MDR I`(2%). Conductivity of the exudates from chilling sensitive lines were higher than from resistant lines, 60 vs. 30 uS/cm, respectively.

scholarly journals Physiological Response to Chilling Temperatures of Intermittently Warmed Cucumber Fruit

1990 ◽  
Vol 115 (2) ◽  
pp. 256-261 ◽  
Author(s):  
Roberto M. Cabrera ◽  
Mikal E. Saltveit
Keyword(s):  
Enzyme Activity ◽  
Carboxylic Acid ◽  
Cucumis Sativus ◽  
Physiological Response ◽  
Chilling Injury ◽  
Ion Content ◽  
Warming Period ◽  
Cucumber Fruit ◽  
Chilling Temperatures ◽  
Acc Content

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·(kg·hr)-1 at 2.5C to 201 nl·(kg·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·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 significantIy lower ethylene-forming enzyme activity than the control or intermittently warmed fruit. Fruit held at 12.5C contained 0.09 to 0.34 nmol·g-1 of ACC. ACC levels were 6.23 nmol·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).

scholarly journals Indication of chilling injury in Japanese cucumber (Cucumis sativus L.) based on the changes in ion leakage and pH

2012 ◽  
Vol 26 (1) ◽  
pp. 31-35
Author(s):  
Y. Aris Purwanto ◽  
◽  
Seiichi Oshita ◽  
Yoshio Makino ◽  
Yoshinori Kawagoe ◽  
...  
Keyword(s):  
Cucumis Sativus ◽  
Chilling Injury ◽  
Ion Leakage ◽  
Cucumis Sativus L

scholarly journals The Ethanol Dip and Vapor Delays Chilling Injury of Cucumber (Cucumis Sativus L. cv. Ceylan), During Storage.

2018 ◽  
Vol 8 ◽  
pp. 1339-1349
Author(s):  
Rezzan Kasim ◽  
Mehmet Ufuk Kasim ◽  
Kubra Yasar ◽  
Tugce Sahin
Keyword(s):  
Decay Rate ◽  
Cucumis Sativus ◽  
Chilling Injury ◽  
Ethanol Treatment ◽  
Polystyrene Foam ◽  
Cucumis Sativus L ◽  
Cucumber Fruit ◽  
Different Doses

In this study, the effects of ethanol which is applied in different forms as liquid and vapor after harvest on chilling injury, color and overall quality of cucumber (Cucumis sativus L. cv. Ceylan) during storage were examined. For the liquid ethanol treatments, cucumber fruits were immersed in water comprising different concentration of ethanol for 5 minutes. In order to apply ethanol in the form of steam, a pad was firstly impregnated with ethanol at different doses. This pad was placed in a polystyrene foam dishes, and after the cucumber fruit is placed on it, the dishes wrapped with stretch film. The doses for used the both ethanol treatment as: Controldip(CD), Controlvapor (CV), 200 µL/L, 400 µL/L , 800 µL/L and 1600 µL/L. It was concluded that the liquid ethanol treatment at the dose of 1600 µL/L was effectively delayed of chilling injury, softening and decay rate.

scholarly journals Interactive Effects of Grafting Techniques and Scion-Rootstocks Combinations on Vegetative Growth, Yield and Quality of Cucumber (Cucumis sativus L.)

Agronomy ◽  
2019 ◽  
Vol 9 (6) ◽  
pp. 288 ◽  
Author(s):  
Rana Shahzad Noor ◽  
Zhi Wang ◽  
Muhammad Umair ◽  
Muhammad Yaseen ◽  
Muhammad Ameen ◽  
...  
Keyword(s):  
Cucumis Sativus ◽  
Fruit Quality ◽  
Vegetative Growth ◽  
Interactive Effect ◽  
Growth Yield ◽  
Fruit Yield ◽  
Lagenaria Siceraria ◽  
Cucumis Sativus L ◽  
Cucumber Fruit

The density of herbaceous crops creates a suitable environment to produce pathogens in the soil that intensify the attack of pathogens traditionally controlled by disinfectant, which are mostly prohibited and unlisted because of their toxicity. Grafting is an alternative technique to enhance abiotic stress tolerance and reduce root diseases due to soil-borne pathogens, thus enhancing crop production. This research study was conducted during the crop season of 2017 and 2018 in order to investigate the interactive effect of different grafting techniques of hybrid scion onto local rootstocks on plants survival, plant phenological growth, fruit yield and fruit quality under a controlled environment. The hybrid cucumber was also planted self-rooted. The cucumber (Cucumis sativus L.) cv. Kalaam F1, Syngenta was grafted onto four local cucurbitaceous rootstocks; ridge gourd (Luffa operculate Cogn.), bitter gourd (Momordica charantia L.), pumpkin (Cucurbita pepo L.), bottle gourd (Lagenaria siceraria (Molina) Standl.) using splice grafting, tongue approach, single cotyledon and hole insertion grafting techniques and self-rooted hybrid cucumber under greenhouse conditions. The experimental results indicated that all local cucurbitaceous rootstocks showed a high compatibility with hybrid cucumber scion in the splice grafting method compared to other grafting and non-grafted methods. Lagenaria siceraria rootstocks were found highly compatible with cucumber cv Kalaam scion which gave significantly maximum plant survival rates (95%) due to high sap contents, high SPAD value, better vegetative growth and maximum fruit yield when compared with other rootstocks by employing the splice grafting method followed by tongue approach, single cotyledon and hole insertion grafting while the fruit quality of all rootstocks was observed to be similar. The non-grafted cucumber cv. Kalaam F1 showed significant results of plant vegetative growth, fruit development and fruit quality and encountered grafting methods while the lowest result were associated with the hole insertion grafting method in all scion/rootstock combinations. The grafted plants have no significant effect on cucumber fruit dry matter and fruit quality while the fruit mineral compositions (N, P, K, Ca and Mg) were higher among grafted and non-grafted plant fruits. The results indicate that grafting hybrid cucumber onto four local cucurbitaceous rootstocks influenced growth, yield and fruit quality. Grafting can be alternative and control measure for soil-borne disease and to enhance cucumber production.

scholarly journals RELATIONSHIP BETWEEN DESICCATION AND CHILLING INJURY IN CUCUMBER FRUIT

HortScience ◽  
1994 ◽  
Vol 29 (7) ◽  
pp. 738b-738
Author(s):  
A.C. Purvis
Keyword(s):  
Weight Loss ◽  
Fruits And Vegetables ◽  
Chilling Injury ◽  
Warm Season ◽  
Moisture Loss ◽  
Low Temperature Storage ◽  
Cucumber Fruit ◽  
Resistant Lines ◽  
Physiological Problem ◽  
The Relationship

Chilling injury (CI) is an important postharvest physiological problem that limits the storage life of many warm-season fruits and vegetables. Variability exists among cultivars and CI appears to be related to moisture loss during low temperature storage. The relationship between moisture loss and CI was examined using fruit from 64 PI lines of field-grown Cucumis sativus. A wide variation existed among the lines in the sensitivity of their fruit to low temperatures. Fruit from 8 of the lines developed severe symptoms of CI after 5 days at 5°C and fruit from 21 lines developed no injury symptoms. CI symptoms developing during 2 and 4 days of storage at 15°C were highly significantly correlated with weight loss during the 5 days of storage at 5°C. Crosses were made between chilling-sensitive and chilling-resistant lines. CI symptoms of the F1 fruit were highly significantly correlated with weight loss during the 5 days of storage at 5°C.

scholarly journals Comprehensive Characterization of Fruit Volatiles and Nutritional Quality of Three Cucumber (Cucumis sativus L.) Genotypes from Different Geographic Groups after Bagging Treatment

Foods ◽  
2020 ◽  
Vol 9 (3) ◽  
pp. 294 ◽  
Author(s):  
Nan Shan ◽  
Zengyu Gan ◽  
Jing Nie ◽  
Huan Liu ◽  
Zhenyu Wang ◽  
...  
Keyword(s):  
Cucumis Sativus ◽  
Nutritional Quality ◽  
Expression Patterns ◽  
Relative Proportion ◽  
Soluble Sugars ◽  
Hydroperoxide Lyase ◽  
Cucumis Sativus L ◽  
Cucumber Fruit ◽  
Fruit Flavor

Bagging is widely practiced to produce high quality and unblemished fruit; however, little is currently known about the effect of bagging on flavor and nutritional quality of cucumber fruits. Here we determined the influence of bagging on fruit quality of cucumber (Cucumis sativus L.) using three genotypes from different geographic groups. Exocarp chlorophyll and carotenoid levels were significantly decreased by bagging, accompanied by color change. Ascorbate content in bagged fruits decreased to some extent, while contents of soluble sugars, starch, and cellulose were comparable with those of control fruits. Compositions related to fruit flavor quality could be enhanced largely through bagging treatment, with elevation of the relative proportion of C6 aldehyde, as well as (E,Z)-2,6-nonadienal/(E)-2-nonenal ratio, and linoleic/α-linolenic acid ratio. Lipoxygenase and hydroperoxide lyase, two key enzymes in the production of volatiles, displayed distinctive transcript expression patterns and trends in changes of enzymatic activity in the bagged fruits of different genotypes. Overall, this study assesses the information on changing characteristics of fruit volatile composition and nutritional quality among different cucumber genotypes after bagging treatment. Results of this study would contribute to providing reference for mechanism study and cultivation conditions to improve cucumber fruit flavor to a considerable degree.

scholarly journals Cucumber Cultivars Differ in Their Response to Chilling Temperatures

1992 ◽  
Vol 117 (5) ◽  
pp. 802-807 ◽  
Author(s):  
Roberto M. Cabrera ◽  
Mikal E. Saltveit ◽  
Ken Owens
Keyword(s):  
Enzyme Activity ◽  
Physiological Responses ◽  
Chilling Injury ◽  
Dry Weight ◽  
Ion Leakage ◽  
Fresh Weight ◽  
Resistant Lines ◽  
Chilling Sensitivity ◽  
Chilling Temperatures ◽  
Highly Correlated

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 suggested that these two early manifestations of chilling injury are not significantly related. Likewise, fruit pitting and decay were not highly correlated with the tolerance of seedlings to chilling, suggesting that fruit and seedlings of the same line may have dissimilar sensitivity to chilling temperatures. Exudates from fruit cut in half transversely were collected on filter paper. The amount of exudate showed a significant correlation with pitting, decay, and percent ion leakage after 10 days of chilling. The fresh and dry weight of the exudates from fruit kept for 8 days at 12.5C ranged from 141- to 346-mg fresh weight and from 15 to 47-mg dry weight, respectively. Cucumber lines that were more sensitive to chilling had watery exudate, as indicated by their lower dry weight and percent solids. The conductivity of exudates from sensitive lines was higher (60 μsiemen/cm) than from chilling resistant lines (30 μsiemen/cm). Chilling-induced ethylene production was higher in sensitive than in resistant lines, and chilling caused a greater loss of ethylene forming enzyme activity in resistant lines than from chilling sensitive lines.

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