Effects of Nutrient and Water Supply During Fruit Development on Metabolite Composition in Tomato Fruits (Solanum lycopersicum L.) Grown in Magnesium Excess Soils

The effect of water deficit on concentrations of carotenoids was investigated in ripening tomatoes using HPLC-PDA. Fifteen different tomato cultivars were grown under three levels of water supply and unripe and fully-ripe fruits were harvested at different stages. Water deficit significantly affected several morphological and fruit yield-related parameters. In unripe tomato fruits, the relative concentrations of xanthophyll cycle carotenoids, e.g., violaxanthin and antheraxanthin, were significantly increased at the expense of ?-carotene upon limiting the water supply. In ripe fruits, nutritionally-relevant lycopene, ?-carotene and lutein levels were broadly independent of water deficit when considering all 15 cultivars, although significant variations were observed among fruits from different genotypes. Our study highlights the importance of careful genotype selection for the production of tomatoes rich in nutritionally-relevant compounds like lycopene and ?-carotene.

Download Full-text

Suitability of bio-extracts with coating materials on physicochemical quality of tomato fruits (Solanum Lycopersicum L.) stored at ambient temperature

International Journal of Agricultural Science and Food Technology ◽

10.17352/2455-815x.000130 ◽

2021 ◽

pp. 347-354

Author(s):

Fufa Desta Dugassa

Keyword(s):

Solanum Lycopersicum ◽

Tomato Fruit ◽

Garlic Extract ◽

Maize Starch ◽

Coating Materials ◽

Tomato Fruits ◽

Physicochemical Quality ◽

Solanum Lycopersicum L ◽

Postharvest Loss

Tomato (Solanum Lycopersicum L. (or) Lycopersicon esculentum Mill.) is being a very nutritious and health protective food, are highly perishable nature. Its sensitivity to postharvest loss due to poor handling, diseases and physical injury limits its successful marketing. Therefore, simple technology is required to reduce the postharvest loss of this commodity. The use of edible coatings with bio-extracts appears to be a good alternative preservation technique to extend the mature tomato fruits. This study was, therefore, initiated to investigate the effect of using bio- extracts garlic bulba and capsicum incorporation with coating materials (maize starch and beeswax on physicochemical quality of tomato fruit stored at ambient conditions (temperature 15.5 to 20.2oC and relative humidity of 55.5 to 67.3%). The experiment was conducted using complete randomized design of two varieties (Fetane and Melkashola) and six treatments. The tomato fruits were coated by dipping into solution for 3 minutes. The treatments prepared were on coating solution of MGE( 9.5% maize starch with 0.5% garlic extract), MCE (9.5% maize starch with 0.5% capsicum extract), BCE (9.5% beewax mixed with 0.5% capsicum extract), BGE (9.5% beewax mixed with 0.5% garlic extract), 10% maize starch without bio-extract, 10% beewax without bio- extract and control. The treatment means were tested at significance level of P ≤ 0.05. The effectiveness of bio-extracts with coating materials on physicochemical quality of tomato fruits were evaluated at three days intervals for 30 days. There was a significance difference (P<0.05) between coated and uncoated fruits. All coatings delayed tomato ripening and improved the keeping quality parameters but best results were exhibited by 9.5% with 0.5% BCE followed by 9.5% with 0.5% MGE by maintaining the mature tomato fruit for 30 days. The study showed that the Fetane variety has maintained more quality attribute than Melkashola variety during storage.

Download Full-text

Metabolomic insights of the tomato fruits (Solanum lycopersicum L.) cultivated under different supplemental LED lighting and mineral nutrient conditions

Horticulture Environment and Biotechnology ◽

10.1007/s13580-019-00215-8 ◽

2020 ◽

Vol 61 (2) ◽

pp. 415-427 ◽

Cited By ~ 2

Author(s):

Hye Jeong Gil ◽

Yangmin X. Kim ◽

Jwakyung Sung ◽

Eun Sung Jung ◽

Digar Singh ◽

...

Keyword(s):

Solanum Lycopersicum ◽

Mineral Nutrient ◽

Tomato Fruits ◽

Led Lighting ◽

Solanum Lycopersicum L ◽

Nutrient Conditions

Download Full-text

PRODUCTIVITY AND QUALITY OF AQUAPONICALLY GROWN TOMATO (Solanum lycopersicum L.) SUPPLEMENTED WITH DIFFERENT NUTRIENT SOLUTIONS

Science and Humanities Journal ◽

10.47773/shj.1998.110.4 ◽

2017 ◽

Vol 11 (1) ◽

pp. 64-98

Author(s):

WILSON LLEGUNAS, JR ◽

◽

ROSARIO SALAS ◽

Keyword(s):

Solanum Lycopersicum ◽

Tomato Plant ◽

Block Design ◽

Sugar Content ◽

Pomacea Canaliculata ◽

Tomato Fruits ◽

Node Number ◽

Net Return ◽

Solanum Lycopersicum L ◽

Nutrient Solutions

Tomato (Solanum lycopersicum L.) is an important vegetable in the country which is consumed both raw and as processed product. This study aimed to evaluate the growth, yield, postharvest qualities and profitability of aquaponically grown tomato supplemented with different nutrient solutions. The study was laid out in Randomized Complete Block Design with 8 treatments replicated 3 times. Tomato fruits were first harvested 60 days after transplanting with 100 percent survival rate. Early flowering of tomato plant was observed when applied with VSU liquid nutrient formulation (VSU-LNF) with node number ranging from 13.33-14.00 bearing the first flower. Growth parameters such as plant height, number of lateral shoot, root length and fruit size are stimulated by the application of VSU liquid nutrient formulation and in combination with ferments. This also resulted to high number and weight of marketable fruit in tomato plant. Carotenoid and chlorophyll contents of the fruits were higher in aquaponically grown tomato supplemented with fermented kuhol (Pomacea canaliculata L.). Free radical scavenging activity was found highest in the fruit of tomato grown in aquaponic system supplemented with combined VSU liquid nutrient formulation with fermented malunggay (Moringa olifera). However, vitamin Cand sugar content of tomato fruits were found highest when supplemented with combine VSU liquid nutrient formulation and fermented kuhol. No significant differences were obtained on firmness, percent weight loss, respiration rate at 2 and 4 weeks after storage, titratable acidity, fruit nitrogen, pH of fruit, oxidation reduction potential, electrical conductivity and total dissolved solids. On the other hand, higher moisture content of the tomato fruits were observed with the application of VSU liquid nutrient formulation and in combination with ferments. Therefore, high yield was produced with the application of VSU liquid nutrient formulation which resulted to higher net return. Aquaponically grown tomato supplemented with VSU-LNF produced lesser yield but with considerable net return.

Download Full-text