scholarly journals Iodine Biofortification Counters Micronutrient Deficiency and Improve Functional Quality of Open Field Grown Curly Endive

Horticulturae ◽  
2021 ◽  
Vol 7 (3) ◽  
pp. 58
Author(s):  
Leo Sabatino ◽  
Francesca Di Gaudio ◽  
Beppe Consentino ◽  
Youssef Rouphael ◽  
Christophe El-Nakhel ◽  
...  

Human iodine (I) shortage disorders are documented as an imperative world-wide health issue for a great number of people. The World Health Organization (WHO) recommends I consumption through ingestion of seafood and biofortified food such as vegetables. The current work was carried out to appraise the effects of different I concentrations (0, 50, 250, and 500 mg L−1), supplied via foliar spray on curly endive grown in the fall or spring–summer season. Head fresh weight, stem diameter, head height, and soluble solid content (SSC) were negatively correlated to I dosage. The highest head dry matter content was recorded in plants supplied with 250 mg I L−1, both in the fall and spring–summer season, and in those cultivated in the fall season and supplied with 50 mg I L−1. The highest ascorbic acid concentration was recorded in plants cultivated in the spring–summer season and biofortified with the highest I dosage. The highest fructose and glucose concentrations in leaf tissues were obtained in plants cultivated in the spring–summer season and treated with 250 mg I L−1. Plants sprayed with 250 mg I L−1 and cultivated in the fall season had the highest I leaf concentration. Overall, our results evidently suggested that an I application of 250 mg L−1 in both growing seasons effectively enhanced plant quality and functional parameters in curly endive plants.

2017 ◽  
pp. 137-142
Author(s):  
Tímea Rubóczki ◽  
Mária Takácsné Hájos

The root vegetables have a pivotal role in the vegetable consumption and to form a healthy diet. The consumption of natural juices, like apple-beetroot are becoming more popular and the drying-, the pharmaceutical- and canning industry require more beetroot to process. For the processing, the industry requires easily peeled and round shaped roots, therefore to use the proper variety is very important. The primary quality parameters are the inner color intensity, uniform color and water soluble dry matter content.4 beetroot varieties were evaluated (Libero, Rubin, Detroit 2 and Cylindra) in the 3 years experiment which was carried out at the University of Debrecen, Institutes for Agricultural Research and Educational Farm, Botanical and Exhibiton Garden. The soil type was calcareous chernozem. Leaf length, shape index and water soluble solid content were measured, and sensory evaluation was carried out on taste, inner color intensity and white ring.To summarize, we can state the exception of Rubin genotype all of the varieties are suitable for second cultivation and good for processing (canned, juice, powder).


Author(s):  
Muzamil A. Rather ◽  
M. A. Chattoo ◽  
T. A. Bhat ◽  
F. Mushtaq ◽  
M. Rashid ◽  
...  

Quality and storage attributes are major concern for potato cultivators as well as processors. Therefore an investigation was carried out to study influence of different levels of sulphur and potassium on different quality and storage parameters of potato. The experiment was laid out in Randomized Complete Block Design with three replications of two factors with four levels of each factor. The two factors were S (sulphur) and K (potassium) with four levels as, S0 (control or no sulphur), S1 (20 kg S ha-1), S2 (40 kg S ha-1) and S3 (60 kg S ha-1) where as potassium levels were, K0 (control or no potassium), K1 (100 kg K ha-1), K2 (125 kg K ha-1) and K3 (150 kg K ha-1). Maximum value (1.48 g cc-1) for specific gravity, Soluble solid content (6.31 0Brix), vitamin C (16.58 mg 100 g-1), crude protein content(1.93%) and Dry matter content (23.09%) in tubers were recorded with S3 (60 kg ha-1) , besides significantly lower values of physiological weight loss (17.50%), sprouting (16.93%) and rotting (15.04%) were also recorded with S3 (60 kg ha-1) level followed by S2 (40 kg S ha-1). Significantly maximum values of quality traits like specific gravity (1.79 g cc-1), Soluble solid content (6.92 0Brix), vitamin C (21.62 mg 100 g-1), crude protein content (2.35%), Dry matter content (25.49%) in tubers were recorded with K3 (150 kg K ha-1), further significantly lower values of physiological weight loss (13.89%), sprouting (11.47 %) and rotting loss (9.92%) were recorded with S3 (150 kg K ha-1). Conjugation of 150 kg K ha-1 K+ 60 kg S ha-1 recorded maximum values of quality traits specific gravity (1.80), soluble solid content (7.63 0Brix), vitamin C (22.10 mg 100 g-1), crude protein content (2.49%) and dry matter content (25.92%), however S content of 0.367% was recorded with K3S3(150 kg K + 60 kg S ha-1), besides significantly lower values of physiological weight loss (13.47%), sprouting (10.44%) and rotting loss (5.43%) followed by S3K3 treatment.


Agriculture ◽  
2020 ◽  
Vol 10 (3) ◽  
pp. 82 ◽  
Author(s):  
Rosario Paolo Mauro ◽  
Valeria Rizzo ◽  
Cherubino Leonardi ◽  
Agata Mazzaglia ◽  
Giuseppe Muratore ◽  
...  

The present experiment addressed the effects of two harvest stages, namely breaker (S1) and turning (S2), on compositional and sensory profile of grafted, greenhouse elongated tomatoes cv. “Sir Elyan”. The rootstocks “He-Man”, “Interpro”, and “Armstrong” were used. The S1 fruits showed a higher dry matter content, firmness and titratable acidity when compared to the S2 ones (by 6%, 3%, and 15%, respectively). They showed, also, the highest L-ascorbic acid concentration and antioxidant activity. Differently, soluble solid content, lycopene and β-carotene increased in the S2 fruits (by 4%, 92%, and 26%, respectively). Excepting methyl salicylate, all the volatiles detected peaked in the S2 fruits, which were scored by panelists as sweeter and more flavorful than the S1 ones. Among the rootstock genotypes, “He-Man” promoted fruits firmness, carotenoids concentration and antioxidant activity, irrespective of the harvest stage. “Interpro” enhanced the sensory attributes of the S1 fruits in terms of bitterness, sourness, sweetness and flavor. Differently, sweetness, sourness, and tomato flavor of the S2 fruits were promoted by “Armstrong”. The results highlight the influence of rootstock genotype on the nutraceutical and sensorial profile of “Sir Elyan” fruits harvested at early ripening stages.


2019 ◽  
Vol 18 (6) ◽  
pp. 129-138
Author(s):  
Tomasz Lipa ◽  
Iwona Szot ◽  
Bohdan Dobrzański Jr. ◽  
Magdalena Kapłan

Control fruits and fruits subjected to 1-MCP application were placed in cold storage at 2°C, 90% r.h. for 18 weeks. The susceptibility of ten apple cultivars: ‘Beni Shogun’, ‘Braeburn Hillwell’, ‘Elise’, ‘Gloster’, ‘Golden Delicious’, ‘Idared’, ‘Jonagold Decosta’, ‘Ligol’, ‘Mutsu’ and ‘Šampion’ was tested using an impact test to obtain bruising of fruits. The analyses were performed on fruits immediately after harvest and four times after different period of cold storage (9 and 18 weeks) and shelf-life (7 days). The following analysis and characteristics of apples were determined: soluble solids content, dry matter content, acidity, fruit mass and size, and firmness. Impact test was carried out by dropping a glass ball with a mass of 25.68 g from height of 40 cm, due to which kinetic energy value of 0.1 J was obtained. Slight differences in acidity and soluble solid content were observed. On the other hand, stress noticed at firmness test was significantly higher for fruits treated with 1-MCP. It was also observed that firmness decreases after the shelf-life and after storage of fruit at room temperature. The ‘Beni Shogun’ apples fruits stored for 9 weeks are most susceptible to bruising (volume = 438.26 mm3). After cold storage, less susceptible cultivar was ‘Szampion’, for which the volume of fruit bruise was 145.62 mm3 only. After 9 weeks of cold storage, for most cultivars, there was no significant differences in bruise volume; however, the shelf-life had significant influence by differing the cultivars, and for all studied cultivars, the bruise volume was lower.


2020 ◽  
Vol 5 (3) ◽  
pp. 247-253
Author(s):  
M.A. Khan ◽  
M.M. Rahman ◽  
R. Sarker ◽  
M.I. Haque ◽  
S.N. Mazumdar

A field experiment was conducted at Spices Research Sub-Centre (SRSC), Bangladesh Agricultural Research Institute (BARI), Faridpur, Bangladesh during the winter season of 2018-2019 to investigate the influences of transplanting times of seedlings and the varieties on the yield and quality of onion bulbs. There were six levels of transplanting time such as T1: November 15, T2: November 30, T3: December 15, T4: December 30, T5: January 14 and T6: January 29 under the trial. The varieties used in the study were: BARI Onion-1 and BARI Onion-4. The experiment was laid out in a randomized complete block design (RCBD) of factorial concept with three replications. The results revealed that dates of transplanting, varieties and their combined effects had significant effect on the parameters studied with minor exception. The plant height, number of leaves/plant and incidence of bolting were decreased with the passage of transplanting time. The maximum values (54.51 cm, 8.53 and 71.28%) of the aforementioned traits were recorded at early transplanting on November 15, respectively. The reduced percent of bolting (2.22%) was observed at December 30. While no incidence of bolting was found under transplanting on 14-29 January. Bulb diameter, individual bulb weight, yield, total soluble solid content and dry matter content of bulb were increased up to transplanting on December 15. Afterwards the values of aforesaid parameters were gradually decreased. The highest yield (17.65 t/ha), total soluble solid content (17.02 0brix) and dry matter content of bulb (15.95%) were obtained from December 15 insignificantly followed by December 30 (16.30 t/ha). The delayed transplanting on 29 January markedly reduced the yield (6.72 t/ha), total soluble solid content (12.58 0brix) and dry matter content of bulb (11.61%) as well. The variety BARI Onion-4 performed better in respect of yield and yield attributes but it showed inferior quality. The combined effect of December 15 x BARI Onion-4 gave the highest yield attributes and yield of onion followed by the combination of November 30 x BARI Onion-4 and December 30 x BARI Onion-4 while the values among the three treatments were statistically similar.


2011 ◽  
Vol 29 (No. 1) ◽  
pp. 65-73 ◽  
Author(s):  
O. Rop ◽  
J. Balík ◽  
V. Řezníček ◽  
T. Juríková ◽  
P. Škardová ◽  
...  

The basic chemical characteristics of 22 quince (Cydonia oblonga Mill.) genotypes and cultivars were determined: dry matter content, soluble solid content, the contents of organic acids, pectins, and mineral elements (nitrogen, phosphorus, potassium, calcium, and sodium). Quince fruits were harvested in the course of October and thereafter analysed at the stage of consumption ripeness after storage at the temperature of +2°C and a relative air humidity of 85%. The contents of pectins in fruits were high – the cultivar Hruškovitá contained 3.51 ± 0.19 g/100 g FW. The contents of vitamin C were also high, the cultivar Muškatová containing as much as 79.31 ± 2.01 g/100 g FW. The affinity of chemical properties of the individual cultivars was expressed by means of cluster analysis and it was found out that there were no marked differences between pear-shaped (Cydonia oblonga subsp. pyriformis) and apple-shaped (Cydonia oblonga subsp. maliformis) forms of fruit.


Agronomy ◽  
2021 ◽  
Vol 11 (6) ◽  
pp. 1141
Author(s):  
Melissa Venturi ◽  
Luigi Manfrini ◽  
Giulio Demetrio Perulli ◽  
Alexandra Boini ◽  
Kushtrim Bresilla ◽  
...  

Climate change is leading to higher plant water requirements and rootstock can play a role in tree adaptation, since the more vigorous ones are also likely to be more stress resistant. Pear trees of the cv. Abbé Fetél grafted on BA29 (more vigorous) and SYDO (more dwarfing) quince were irrigated according to three different treatments: 110 C, 80 DI and 60 DI, corresponding to 110%, 80% and 60% of the crop evapotranspiration rate (ETc), respectively. Shoot and fruit growth, water potentials, leaf gas exchanges and dry matter content were monitored during the season. Fruit quality was evaluated at harvest and after 6 months of storage at 1 °C. Results show how for both rootstocks, 60 DI significantly decreased their stem (Ψstem) and leaf (Ψleaf) water potentials as well as leaf gas exchanges. In SYDO, final fruit size was affected by irrigation, with lower values on 60 DI, but in BA29, no differences were found between treatments. After storage, BA29 60 DI fruit showed a higher soluble solid content, while in SYDO fruit, firmness was more affected by irrigation level. In conclusion, despite a slight decrease in fruit size, reduced irrigation led to fruit with higher quality features that were also maintained after a long period of storage.


2020 ◽  
Vol 10 (4) ◽  
pp. 1258
Author(s):  
Leo Sabatino ◽  
Giovanni Iapichino ◽  
Rosario Paolo Mauro ◽  
Beppe Benedetto Consentino ◽  
Claudio De Pasquale

Imminent necessity for eco-friendly and low-cost substitutes to peat is a defiance in the soilless plant cultivation systems. Wood biochar could entirely or partly substitute peat as a plant growing constituent to produce vegetables. Nevertheless, knowledge concerning potential plant performance of leafy green vegetables grown on wood biochar is restricted. The present study assessed the main physicochemical traits of various growing media constituted by decreasing the content of peat and by increasing the percentages of poplar wood biochar. Yield, nutritional and functional properties of curly endive plants cultivated in a protected environment were also tested. Biochar was pyrolyzed from poplar (Populus nigra L.) at 450 or 700 °C for 48 h. Increasing biochar concentration and pyrolysis temperature resulted in higher pH, EC and K content of the growing mediums. Biochar was also effective in increasing particle density and bulk density. Biochar at 70% and pyrolysis temperature of 450 °C significantly increased head fresh weight by 47.4%, head height by 24.9%, stem diameter by 21.5% and number of leaves by 80.8%, respectively compared with the control (100% peat). Head dry matter content, root dry matter content, SSC, ascorbic acid and total phenolic were also significantly affected by this treatment. Furthermore, the addition of biochar and the use of higher pyrolysis temperature decreased N leaves concentration. This represents a particularly important target for leafy green vegetables healthiness.


2020 ◽  
Vol 19 (5) ◽  
pp. 143-150
Author(s):  
Alaa El-Din K. Omar ◽  
Mahmoud Abdel-Aziz Ahmed ◽  
Rashed Al-Obeed ◽  
Abdullah Alebidi

Using biofertilizers has been a good method in this respect. Field experiments were conducted in 2014 and 2015 on 6-year-old grapevine cv. “Flame Seedless” grown under arid conditions (Riyadh, Saudi Arabia) to evaluated the effects of foliar application with natural sources and chemical of fertilizer on yield and fruit quality. Eight different foliar spray treatments were applied at 4 weeks after fruit set and repeated after another 4 weeks. These treatments were yeast at 4, 6 or 8%; seaweed extract at 1 or 2%; potassium nitrate at 2%; potassium hydrogen phosphate at 2%, and the control (water only). Results indicated that the application of 8% yeast had improved fruit chemical characteristics (soluble solid content, reducing sugars and total sugars) and some physical characteristics (cluster width and weight of 100 berries). Application of 2% potassium nitrate had a significant effect on yield, cluster weight, cluster length, and volume of 100 berries.


2020 ◽  
Vol 2 (2) ◽  
pp. 37-48
Author(s):  
Erasmo Vasquez-Rojas ◽  

Trying to determine the effect of the foliar spray of calcium - boron on the fruits quality of cape gosseberry (Physalis peruviana), experimental plots were installed in two locations: Ichocán (2834 masl) and Molino (2280 masl), both in the province of Ambo, Huánuco region, using a Complete Random Block Design with a factorial arrangement of 2x2 +1 with four repetitions, the factors under study: Dose (500 and 1000 ppm of CaO, 33.63 and 67.26 ppm of B2O3), Frequency (7 and 14 days) and a contrasting control (additive), in total, there were 20 experimental units per locality, evaluating 4 plants per experimental unit, the fruit quality parameters evaluated were: diameter, weight, total soluble solids, titratable acidity, maturity index, dry matter content, firmness and incidence of fruit splitting, finding significant differences in the parameters firmness, calcium content at the fruit level and incidence of fruit splitting. rutos, with respect to the treatments studied, significant statistical differences were found, as well as interaction between the factors under study for the parameter total soluble solids in Ichocán and number of fruits in Molino, finding no significant differences in the other parameters evaluated. Key words: cape gooseberry, calcium-boron, cracked fruit, quality fruit


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