scholarly journals Relation of Maturity to Some Fruit Characters of the West Indian Cherry

1969 ◽  
Vol 47 (3) ◽  
pp. 193-200
Author(s):  
Agripino Pérez López
Keyword(s):  
Ascorbic Acid ◽  
Chemical Composition ◽  
Correlation Coefficient ◽  
Acid Content ◽  
West Indian ◽  
Ascorbic Acid Content ◽  
The West ◽  
Total Solids ◽  
Agricultural Experiment ◽  
Fruit Characters

An experiment was conducted on West Indian Cherries of the B-17 variety at the Isabela Agricultural Experiment Substation to study the relationships between ripeness and chemical composition of the fruit at various harvesting dates. Most of the trees bloomed practically at the same time, so that it was easy to replicate the harvesting dates: May 3, May 7, May 10, May 14, and May 17. The fruit characters studied in this experiment were: Percentage of ripe fruits, total solids, ascorbic acid, and fruit produced per tree. The major results of this experiment were as follows: 1. The percentage of ripe fruits increased as the season progressed. Eight percent of nonripe fruits were still found on the last harvesting date, May 17. 2. The total solids were much higher at the end of the season, indicating that the mature fruits had more total solids than the immature. 3. The ascorbic acid content was much lower at the end of the season, indicating that the percentage of this vitamin is reduced as the fruits mature. 4. The highly significant correlation coefficient between percentage of ripe fruits and total solids and ascorbic acid suggests that these characters are affected by ripeness.

scholarly journals Chemical Composition and Physical Characteristics of Fruits of Two Cultivars of Blue Honeysuckle (Lonicera caerulea L.) in Relation to their Degree of Maturity and Harvest Date

2012 ◽  
Vol 40 (1) ◽  
pp. 155 ◽  
Author(s):  
Ireneusz Dariusz OCHMIAN ◽  
Katarzyna SKUPIEN ◽  
Jozef GRAJKOWSKI ◽  
Milosz SMOLIK ◽  
Krystyna OSTROWSKA
Keyword(s):  
Ascorbic Acid ◽  
Chemical Composition ◽  
Fruit Ripening ◽  
Acid Content ◽  
Ascorbic Acid Content ◽  
Soluble Solids ◽  
Fruit Colour ◽  
Total Polyphenol ◽  
Lonicera Caerulea ◽  
Blue Honeysuckle

The aim of study was to compare yield, fruit quality, chemical composition and fruits colour of berries of two blue honeysuckle(Lonicera caerulea L.) cultivars of Polish bred ‘Wojtek’ and ‘Brązowa’ collected at the beginning and at the end of harvest season,respectively. On average, ‘Wojtek’ yielded 1565 g per bush, whereas ‘Brązowa’ 1941 g. During the fruit ripening process, considerablechanges were found in the fruit colour. Fruits of both cultivars became darker and their colour changed from green and yellow to redand blue. With the changes in fruit colour, considerable changes in firmness also occurred. Fruit ripening reduced fruit firmness andpuncture resistance. For both genotypes, the berries of late harvest were bigger and richer in soluble solids and total polyphenol, however,they showed decreased firmness, lower acidity, and L-ascorbic acid content. Nevertheless the time of harvest, ‘Wojtek’ berries surpassed‘Brązowa’ fruit regarding soluble solids, titratable acidity and L-ascorbic acid content (for late-crop berries of both cultivars 14.1>12.6%,3.4>2.7 g citric acid 100 g1, and 76>56 mg 100 mL-1. Further, ‘Wojtek’ berries showed higher total polyphenol content (149.30 and183.66 mg∙100 g-1, for early and late ripening fruit, respectively) compared to that of ‘Brązowa’ (125.51 and 175.67 mg 100 g-1). Amongphenolics, anthocyanins made the substantial group ranging from 94.47 mg 100 g-1 (‘Brązowa’ berries of early harvest) to 141.96 mg 100g-1 (late ‘Wojtek’ fruit).

scholarly journals Influence of Root-Inducing Substances and Time Intervals on the Rooting of Acerola Cuttings

1969 ◽  
Vol 43 (3) ◽  
pp. 152-158
Author(s):  
Raúl Abrams ◽  
George C. Jackson
Keyword(s):  
Ascorbic Acid ◽  
Acid Content ◽  
Ascorbic Acid Content ◽  
Time Interval ◽  
Naphthaleneacetic Acid ◽  
Agricultural Experiment Station ◽  
Indolebutyric Acid ◽  
Time Intervals ◽  
Agricultural Experiment ◽  
Sand Beds

Because of the high ascorbic acid content of the pulp of its fruit, the acerola (Malpighia punicifolia L.) has good potentialities as an economic crop for Puerto Rico. The Agricultural Experiment Station therefore, has selected clones of a high ascorbic acid content of which B. 15 is one of the best. The best and most rapid type of true-to-type propagation for the selected clones is by means of cuttings. In this experiment cuttings of acerola clone B. 15 were treated with indolebutyric and naphthaleneacetic acid and left in the sand beds for 6, 8, and 10 weeks. The major results were: 1. Indolebutyric acid significantly increased the number of cuttings that rooted. 2. Leaving the cuttings in the sand beds for 8 weeks proved this to be the optimum time interval for the rooting of the cuttings. 3. The use of the plant hormones significantly increased the number of roots per cutting.

scholarly journals DYNAMICS OF THE CHEMICAL COMPOSITION OF BERRIES OF INTRODUCED CULTIVARS AND FORMS OF CRANBERRIES IN THE CONDITIONS OF CENTRAL SIBERIAN BOTANICAL GARDEN SB RAS

2021 ◽  
pp. 241-249
Author(s):  
Aleksey Borisovich Gorbunov ◽  
Tat'yana Abdulkhailovna Kukushkina
Keyword(s):  
Ascorbic Acid ◽  
Chemical Composition ◽  
Acid Content ◽  
Western Siberia ◽  
Ascorbic Acid Content ◽  
Titratable Acidity ◽  
Botanical Garden ◽  
The Difference ◽  
Biochemical Research ◽  
Dry Substance

The aim of the work was study of the variability of fruit chemical composition of O. palustris (2 samples) and O. macrocarpus (6 samples) cultivars and forms introduced in CSBG depending on the conditions of the year. Biochemical research of the content of dry substance, ascorbic acid, sugars, titratable acidity, anthocyanins, pectins, protopectins and catechins in berries of these samples were conducted. The chemical composition was analyzed by conventional methods. O. palustris surpasses O. macrocarpus in the content of ascorbic acid and titratable acidity, but is inferior to it in the accumulation of anthocyanins, pectins and protopectins. In comparison with the studied samples of both species, the native O. palustris accumulates the greatest amount of ascorbic acid and the least amount of sugars. The early cultivars of O. macrocarpus exceeds the mid-season cultivars and are close to late-maturing ones in terms of ascorbic acid content. The difference in the accumulation of other ingredients in the fruits of both O. palustris and O. macrocarpus is not statistically significant. According to the chemical composition of berries, O. palustris and O. macrocarpus are promising for introduction in the South of Western Siberia.

Analysis of ascorbic acid content in various fruits and vegetables by spectrofluorimetric methods

Planta Medica ◽  
2011 ◽  
Vol 77 (12) ◽  
Author(s):  
A Haskovic ◽  
A Copra Janicijevic ◽  
A Topcagic ◽  
L Klepo ◽  
A Kapur ◽  
...  
Keyword(s):  
Ascorbic Acid ◽  
Acid Content ◽  
Fruits And Vegetables ◽  
Ascorbic Acid Content

scholarly journals Silicon attenuates calcium deficiency by increasing ascorbic acid content, growth and quality of cabbage leaves

2021 ◽  
Vol 11 (1) ◽  
Author(s):  
Dalila Lopes da Silva ◽  
Renato de Mello Prado ◽  
Luis Felipe Lata Tenesaca ◽  
José Lucas Farias da Silva ◽  
Ben-Hur Mattiuz
Keyword(s):  
Ascorbic Acid ◽  
Nutrient Solution ◽  
Acid Content ◽  
Dry Matter ◽  
Ascorbic Acid Content ◽  
Calcium Deficiency ◽  
Ca Deficiency ◽  
Leaf Water Loss ◽  
Nutrient Solutions

AbstractCalcium (Ca) deficiency in cabbage plants induces oxidative damage, hampering growth and decreasing quality, however, it is hypothesized that silicon (Si) added to the nutrient solution may alleviate crop losses. Therefore, this study aims at evaluating whether silicon supplied in the nutrient solution reduces, in fact, the calcium deficiency effects on cabbage plants. In a greenhouse, cabbage plants were grown using nutrient solutions with Ca sufficiency and Ca deficiency (5 mM) without and with added silicon (2.5 mM), arranged as a 2 × 2 factorial in randomized blocks, with five replications. At 91 days after transplanting, the plants were harvested for biological evaluations. In the treatment without added Si, Ca deficiency promoted oxidative stress, low antioxidant content, decreased dry matter, and lower quality leaf. On the other hand, added Si attenuated Ca deficiency in cabbage by decreasing cell extravasation while increasing both ascorbic acid content and fresh and dry matter, providing firmer leaves due to diminished leaf water loss after harvesting. We highlighted the agronomic importance of Si added to the nutrient solution, especially in crops at risk of Ca deficiency.

COMPARISON OF ASCORBIC ACID CONTENT IN IMPORTED TOMATOES AND IN CULTIVARS GROWN IN NOVA SCOTIA

1987 ◽  
Vol 67 (1) ◽  
pp. 331-335
Author(s):  
HAK-YOON JU ◽  
W. JOHN MULLIN
Keyword(s):  
Ascorbic Acid ◽  
Nova Scotia ◽  
Vitamin C ◽  
Acid Content ◽  
Ascorbic Acid Content ◽  
Fresh Weight ◽  
Atlantic Region ◽  
Significant Difference ◽  
Cluster Location ◽  
Greenhouse Tomatoes

The ascorbic acid (vitamin C) content of fresh imported field tomatoes and Nova Scotia greenhouse and field tomatoes was determined on a bi-weekly basis during the period of availability of each type of tomato to the Nova Scotia consumer in 1984. The average ascorbic acid contents of imported and Nova Scotia field and greenhouse tomatoes were 13.3, 16.7 and 17.7 mg 100 g−1 fresh weight, respectively. A study of nine recommended or promising field tomatoes for the Atlantic region showed significant differences in ascorbic acid content among the cultivars. The cultivar Quick Pick had the highest ascorbic acid content of 22.5 ± 1.5 mg 100 g−1, the cultivar Campbell 18 had the lowest content, 12.0 ± 2.9 mg 100 g−1. In Dombito greenhouse tomatoes the stage of maturity and the effect of cluster location were tested against ascorbic acid content. The lowest ascorbic acid content of 9.1 ± 1.0 mg 100 g−1 was found with the small green tomatoes while others from mature green to overripe contained 14.0–16.7 mg 100 g−1. Tomatoes from different cluster locations showed no significant difference in ascorbic acid content.Key words: Vitamin C, L-ascorbic acid, tomatoes

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