scholarly journals THE EFFECT OF TRANSPIRATION ON THE ACCUMULATION OF CARBOHYDRATES IN TOMATO FRUIT.

HortScience ◽  
1992 ◽  
Vol 27 (6) ◽  
pp. 591e-591
Author(s):  
Saneyuki Kawabata ◽  
Ryozo Sakiyama
Keyword(s):  
Dry Matter ◽  
Tomato Fruit ◽  
Fruit Size ◽  
High Humidity ◽  
Tomato Fruits ◽  
Phloem Sap ◽  
Total Sugars ◽  
Low Humidity ◽  
Predominant Factor ◽  
Fruit Surface

Previous studies suggest that transpiration from fruit surface drives the inflow of phloem sap into fruits. In those studies, the increment of the size of fruits was restricted mechanically to avoid the effects of changes in fruit size on the import of water. In this experiment, the influence of transpiration on the accumulation of carbohydrates was investigated in intact tomato fruits. Tomato fruits. 7 days after flowering, as attached to the plants were enclosed in the chamber of low humidity (LH) or high humidity (HH) and they were sampled 38 days after flowering. The enlargement of LH fruits was smaller than that of HH fruits. The accumulation of dry matter and total sugars on a fruit basis was lower in LH fruits than in HH fruits. There was no difference in the content of dry matter between LH and HH fruits. The concentration of total sugars of LH fruits was slightly lower than that of HH fruits. Lower accumulation of carbohydrates in LH fruits shows that transpiration flow of phloem sap is not the predominant factor that controls the inflow of photosynthetic assimilates in intact tomato fruit.

Use of Lycopersicon cheesmanii and L. chmielewskii to increase dry matter content of tomato fruit

1993 ◽  
Vol 73 (1) ◽  
pp. 273-279 ◽  
Author(s):  
V. Poysa
Keyword(s):  
Lycopersicon Esculentum ◽  
Dry Matter ◽  
Tomato Fruit ◽  
Fruit Size ◽  
Fruit Yield ◽  
Soluble Solids ◽  
High Yield ◽  
Dry Matter Content ◽  
Total Solids ◽  
Solids Content

Advanced lines and backcrosses from interspecific hybridization of processing tomato (Lycopersicon esculentum Mill.) with six L. chmielewskii (Rick, Kesicki, Fobes and Holle) and L. cheesmanii (Riley) accessions were evaluated in the field over 2 yr for soluble solids content (SSC), total solids content (TSC), fruit yield and fruit size to determine the effectiveness of combining elevated solids levels with high fruit yield and size following early generation selection. More than a quarter of the lines had significantly higher SSC levels than the recurrent tomato parent, Purdue 812 (P812). Several lines combined high SSC and TSC with high fruit yield and large fruit size to produce more dry matter yield per hectare or per fruit than P812. Two backcrosses were optimal for combining high SSC and high yield. SSC and TSC were negatively correlated with fruit size and, to a lesser degree, with fruit yield. Key words: Lycopersicon esculentum, soluble solids, total solids

scholarly journals Evaluation of plum cultivars grafted on ‘Wangenheim Prune’ rootstock in the northeast of Poland

2013 ◽  
Vol 25 (2) ◽  
pp. 101-106 ◽  
Author(s):  
Bogumił Markuszewski ◽  
Jan Kopytowski
Keyword(s):  
Ascorbic Acid ◽  
Organic Acids ◽  
Dry Matter ◽  
Fruit Size ◽  
Growth Yield ◽  
Total Sugars ◽  
Experimental Station ◽  
Northeastern Poland ◽  
The University

ABSTRACT The study was conducted in the years 2007-2012 at the Didactic and Experimental Station of the University of Warmia and Mazury in Olsztyn in order to select plum cultivars suitable for growing on ‘Wangenheim Prune’ rootstock in northeastern Poland. The study encompassed the following plum cultivars: ‘Herman’, ‘Čačanska Rana’, ‘Dąbrowicka Prune’, ‘Promis’, ‘Elena’ ‘Tolar’, ‘Bluefre’, ‘Top’, ‘President’ and ‘Valor’. The measurements taken included: trunk growth, yield, weight of one fruit, size of fruit, the content of dry matter, ascorbic acid, total and simple sugars and organic acids. We found that the ‘Valor’ and ‘Herman’ trees grew the best and ‘Top’ grew the most poorly. The highest yields were gathered from the ‘President’, ‘Valor’ and ‘Bluefre’ trees. ‘Bluefre’ had the largest fruit size. The highest content of dry matter was found in the fruit of ‘Tolar’, ‘Valor’ and ‘Promis’. The fruit of ‘Bluefre’, ‘Tolar’ and ‘Top’ had the highest concentration of ascorbic acid. The highest content of total sugars and simple sugars was detected in the fruit of ‘Tolar’, while the highest concentrations of organic acids were found in the fruit of ‘Čačanska Rana’, ‘Dąbrowicka Prune’ and ‘Top’. ‘Promis’, ‘Herman’, ‘Valor’, ‘Top’ and ‘Tolar’ had the highest sugar/acid indexes.

scholarly journals Physico Chemical Studies during the Ripening of the Fruit of Lycopersicon Esculentum Mill Var. Naveen

2015 ◽  
Vol 50 ◽  
pp. 113-116
Author(s):  
S. Balamurugan
Keyword(s):  
Lycopersicon Esculentum ◽  
Tomato Fruit ◽  
Value Added ◽  
Total Carotenoids ◽  
Tomato Fruits ◽  
Total Sugars ◽  
Maturity Indices ◽  
Physico Chemical ◽  
Chemical Studies ◽  
Value Added Products

A correlative study on physico-chemical changes during fruit ripening in Lycopersicon esculentum has been carried out. The tomato fruit was collected at its four successive stages viz. 1. Mature green, 2. Half ripened, 3. 3/4tth - ripened and 4. Fully ripened for its physico-chemical analysis. The obtained result showed that with advancement of fruit maturation the amount of pigments (total carotenoids, lycopene), total sugars, reducing sugars increase significantly. While that of physio chemical studies of weight of fruit, pulp, peel and volume of fruit decrease gradually. However TSS, titrable acidity, PH, ascorbic acid, tannins as moisture of tomato fruits could be considered as maturity indices to judge the ripening stages of tomato fruits for various value added products preparation.

scholarly journals Biochemical composition of tomato fruits of various colors

2021 ◽  
Vol 25 (5) ◽  
pp. 514-527
Author(s):  
A. B. Kurina ◽  
A. E. Solovieva ◽  
I. A. Khrapalova ◽  
A. M. Artemyeva
Keyword(s):  
Ascorbic Acid ◽  
Dry Matter ◽  
Titratable Acidity ◽  
Biologically Active ◽  
Tomato Fruits ◽  
Total Sugars ◽  
Health Promoting ◽  
Chlorophyll A And B ◽  
Active Substances ◽  
Selection Of

Tomato (Lycopersicon esculentum Mill.) is an economically important and widely cultivated vegetable crop that is consumed both fresh and processed. The nutritional value of tomato fruits is related to the content of carotenoids, polyphenols, sugars, organic acids, minerals and vitamins. Currently, there is a growing interest in the qualitative and quantitative increase in the content of health-promoting compounds in tomato fruits. VIR Lycopersicon (Tourn.) Mill. genetic resources collection includes 7678 accessions of one cultivated and nine wild species, which in turn provides ample opportunities for searching for information on the variability of the content of biologically active substances and searching for sources with a high content of them in the gene pool. Our work presents the results of the study of 70 accessions of cultivated and wild tomato on the main biochemical characteristics: the content of dry matter, ascorbic acid, sugars, carotenoids, chlorophylls and anthocyanins. As the basis for the selection of accessions for the study, accessions with various colors of fruits, including new accessions with varying content of anthocyanin, were taken. As a result of this study, the amplitude of variability in the content of dry matter (3.72–8.88 and 9.62–11.33 %), sugars (1.50–5.65 and 2.20–2.70 %), ascorbic acid (12.40–35.56 and 23.62– 28.14 mg/100 g), titratable acidity (0.14–0.46 and 0.33–0.48 %), chlorophylls (0.14–5.11 and 2.95–4.57 mg/100 g), carotenoids (0.97–99.86 and 1.03–10.06 mg/100 g) and anthocyanins (3.00–588.86 and 84.31–152.71 mg/100 g) in the fruits of cultivated and wild tomatoes, respectively, was determined. We have determined correlations between the content of dry matter and monosaccharides (r = 0.40, p ≤ 0.05), total sugars (r = 0.37, p ≤ 0.05) and ascorbic acid (r = 0.32, p ≤ 0.05); the content of ascorbic acid and carotenoids (r = 0.25, p ≤ 0.05). A high dependence of the content of chlorophyll a and b among themselves (r = 0.89, p ≤ 0.05), as well as between the content of chlorophyll b and anthocyanins (r = 0.47, p ≤ 0.05), the content of β-carotene (r = 0.26, p ≤ 0.05) and the content of monosaccharides (r = –0.29, p ≤ 0.05) has been noted. We have identif ied tomato accessions with a high content of individual chemical substances, as well as with a complex of traits that can be used as sources in breeding for a high content of dry matter, sugars, ascorbic acid, pigments and anthocyanins.

Vasculature of the abscission zone of tomato fruit: implications for transport

1989 ◽  
Vol 67 (6) ◽  
pp. 1898-1902 ◽  
Author(s):  
D. R. Lee
Keyword(s):  
Lycopersicon Esculentum ◽  
Dry Matter ◽  
Tomato Fruit ◽  
Abscission Zone ◽  
Sectional Area ◽  
Cross Sectional ◽  
Phloem Sap ◽  
Fruit Maturity ◽  
Major Increase ◽  
A Site

The structural anatomy of the abscission zone in the "knuckle" of the pedicel supporting the tomato fruit may provide an explanation as to how and why a fruit such as a tomato (Lycopersicon esculentum) can accumulate both water and dry matter. There is a significant reduction in xylem and a major increase in phloem cross-sectional area through the knuckle relative to the rest of the pedicel that persists from flowering through to fruit maturity. This will produce a site of high resistance to water flow in the xylem and transfer the demand for water by the fruit to the phloem, thus linking water and dry matter influx into the fruit. Transpiration from the fruit will play a role in initiating or maintaining the flow of phloem sap to the fruit.

Assessment of locally produced waxing materials on the shelf life and fruit quality of two tomato varieties (Solanum lycopersicum)

2017 ◽  
Vol 4 (1) ◽  
pp. 36-47
Author(s):  
R. Osae G. Essilfie J. O. Anim
Keyword(s):  
Shelf Life ◽  
Tomato Fruit ◽  
Chemical Properties ◽  
Storage Period ◽  
Cassava Starch ◽  
Soluble Solids ◽  
Shea Butter ◽  
Tomato Fruits ◽  
Randomized Design ◽  
Colour Development

The study was conducted to assess the effect of different waxing materials on the quality attributes of tomato fruits. A 2 x8 factorial experiment layout in complete randomized design with 16 treatment combinations and 3 replication was adopted.The materials that were used for the experiment are two (2) varieties of tomatoes (Pectomech and Power Rano) and seven(7) waxing material (shea butter, cassava starch, beeswax, and a combination of shea butter + cassava starch, shea butter + beeswax, cassava starch + beeswax, shea butter + cassava starch + beeswax) and a control. Results from the experiment indicated that all waxing treatments delayed the development of weight loss, firmness, pH, total soluble solids, and total titrable acidity. The results also suggested that edible wax coatings delayed the ripening process and colour development of tomato fruits during the storage period and extended the shelf life. However Beewax treatment and its combinations performed better than the other treatments. It was therefore recommended that locally produced wax such as Beewax, Shea butter, Cassava Starch treatments and their combinations could be a good technology for preserving the quality and extending the shelf life of fresh tomato fruit as well as maintaining the physical and chemical properties.

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