Evaluation of okra landraces based on agronomic and biochemical traits

ABSTRACT Okra is consumed in several countries and is an important source of nutrients for human food. To promote okra production and consumption is essential the development of new cultivars with high nutritional levels, besides desirable agronomic traits. Thus, this study aimed to evaluate nine okra landraces by agronomic and biochemical traits. The accessions UEL2, UEL3, UEL5, UEL6, UEL7, UEL9, UEL10, UEL13 and UEL15 were grown in open field condition and evaluated in relation to fruit yield, fruit weight, fruit diameter, number of fruits per plant and plant height. The biochemical analysis included mineral composition, crude protein content, vitamin C content, total flavonoid and phenolic content and antioxidant activity. The UEL7 accession stood out for the high levels for biochemical traits such as content of some minerals, vitamin C and antioxidant activity. On the other hand, UEL3 accession had a low performance for biochemical traits, but stood out for agronomic traits such as fruit yield and number of fruits per plant. Hence, the UEL7 and UEL3 landraces may be introduced in breeding programs focused on human food and agronomic performance, beyond to contribute for okra germplasm conservation.

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Exploration of Three Solanum Species for Improvement of Antioxidant Traits in Tomato

HortScience ◽

10.21273/hortsci.49.8.1003 ◽

2014 ◽

Vol 49 (8) ◽

pp. 1003-1009 ◽

Cited By ~ 6

Author(s):

Oğuz Top ◽

Cantuğ Bar ◽

Bilal Ökmen ◽

Duygu Yüce Özer ◽

Dane Rusçuklu ◽

...

Keyword(s):

Antioxidant Activity ◽

Vitamin C ◽

Phenolic Content ◽

Agronomic Traits ◽

Solanum Species ◽

Transgressive Segregation ◽

Fruit Weight ◽

Water Soluble ◽

Wild Tomato Species ◽

Tomato Species

Wild tomato species have been widely used for improvement of tomato disease resistance but have not been extensively explored for health-related traits. In this work, three interspecific populations derived from backcrosses between cultivated tomato and Solanum pimpinellifolium (LA1589), S. habrochaites (LA1223), and S. peruvianum (LA2172) were analyzed for water-soluble antioxidant activity, phenolic content, vitamin C content, and basic agronomic traits including fruit weight, shape, and color. The wild species accessions significantly exceeded S. lycopersicum for all three antioxidant traits with only one exception: vitamin C content in S. habrochaites LA1223. Several populations and traits showed transgressive segregation indicating that the backcross populations contained individuals with allele combinations that allowed antioxidant activity/content to exceed that of both parents. The S. habrochaites LA1223 population provided the best starting material for improvement of water-soluble antioxidant activity and phenolics content with 20% and 15% of the population, respectively, significantly exceeding the parental values for these traits. Moreover, the S. habrochaites population contained individuals that had nearly 2-fold more water-soluble antioxidant activity and phenolic content than cultivated tomato. The S. peruvianum LA2172 population was best for improvement of vitamin C content with 3-fold variation for the trait and individuals, which had twice as much vitamin C as cultivated tomato.

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Genetic variability, heritability and genetic advance for various quantitative and qualitative traits in Chilli (Capsicum annuum L.)

Journal of Applied and Natural Science ◽

10.31018/jans.v9i1.1182 ◽

2017 ◽

Vol 9 (1) ◽

pp. 262-273

Author(s):

Syed Berjes Zehra ◽

Shabir Hussain Khan ◽

Asif Ahmad ◽

Baseerat Afroza ◽

K. Parveen ◽

...

Keyword(s):

Genetic Variability ◽

Vitamin C ◽

Fruit Weight ◽

Matter Content ◽

Fruit Yield ◽

Minor Role ◽

Dry Matter Content ◽

Genetic Advance ◽

Coefficients Of Variation ◽

Fruit Harvest

Genetic variability, heritability and genetic advance for different quantitative and qualitative characters were studied in 64 genotypes of chilli. The study indicated the existence of considerable amount of genetic variability for all the traits under study. Analysis of variance revealed significant differences among genotypes for almost all the traits studied. The maximum range was recorded for fruit yield per plant (150-900 g) followed by vitamin-C content at red ripe stage (35.50 -207.17 mg/100g), vitamin-C content at green stage (24.93-195.83 mg/100g), capsanthin content (39.58-180.35ASTA units, number of fruits per plant (21.32-100.27) and plant height (50.20-105.00cm). The highest phenotypic and genotypic coefficients of variability were observed for average fruit weight followed by seed yield per plant, average seed weight per fruit, number of fruits per plant, fruit yield per plant and fruit diameter. In general the phenotypic coefficients of variation (PCV) were slight higher than genotypic coefficients of variation GCV), which indicates the minor role of environment in the expression of traits under observation. The estimates of heritability in broad sense was high for all the characters. The present investigation indicates a great scope of in the improvement of these traits as these characters in general possessed high estimates of heritability coupled with high genetic advancement except for days to first fruit set, days to first green fruit harvest, days to first ripe fruit harvest and dry matter content (high heritability but moderate genetic gain) indicating the preponderance of additive gene action for control of these traits.

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EFFECT OF FOLIAR APPLICATION OF POTASSIUM ZINC AND GIBBERELIC ACID ON YIELD AND SOME FRUIT QUALITY OF POMEGRANATE CV. SALIMY

IRAQI JOURNAL OF AGRICULTURAL SCIENCES ◽

10.36103/ijas.v47i2.598 ◽

2016 ◽

Vol 47 (2) ◽

Author(s):

Jumaa & Ali

Keyword(s):

Vitamin C ◽

Foliar Application ◽

Influence Factors ◽

Punica Granatum ◽

Fruit Weight ◽

Fruit Yield ◽

Potassium Sulfate ◽

Soluble Solids ◽

Experimental Unit ◽

Fruit Cracking

The study was carried out during the growing season 2013 in a private orchard in Diyala Governorate on pomegranate trees Punica granatum L. cv. Salimy which were nine old years, all trees that chosen had uniform in size and growth were trained on three trunks and planted at 4×4m to study the effect of three levels of potassium sulfate (0, 1500, 3000 mg.K.L-1) and three levels of Zinc (0, 500, and 1000 mg.Z.L-1) and three levels of Gibberellic acid (GA3) (0, 20 and 40 mg.L-1) on quality and quantity of fruit yield, A factorial experiment with three replicate was carried out according to the (RCBD) using one tree on experimental unit, the experimental results showed: Potassium achieved by concentration 3000 mg.L-1 significant decrease in the fruit cracking by 18.70%, As led to increasing in yield and some of the physical qualities of fruit as fruit yield increased, fruit weight, the proportions 41.22% and 11.48% respectively, as well as with zinc as the sprayed concentration of 1000 mg.L-1 cause a decrease of 13.86% fruits cracked, and achieved a significant increase in fruit yield, fruit weight, As GA3 did not have a significant effect on the qualities above, the results have shown that overlap the study showed a significant influence factors in reducing fruits drop and cracked and improve the physical qualities of the fruit. The results showed that the proportion of total soluble solids (TSS) were not significantly affected by three study factors and increased vitamin -C- , as a result of spraying potassium concentration 3000 mg.L-1 by 20.51% , and 8.75% at 1000 mg.L-1 of zinc, GA3 achieved increase in vitamin -C- by 5.66%, showed the interaction a significant effects in qualities of the above with varying proportions depending on the type of factor and its concentration added .

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Irrigation management of muskmelon with tensiometry

Revista Agrogeoambiental ◽

10.18406/2316-1817v9n32017965 ◽

2017 ◽

Vol 9 (3) ◽

Cited By ~ 1

Author(s):

Márcio José de Santana ◽

Guilherme de Almeida Bocate ◽

Murilo Augusto Sgobi ◽

Stefany Silva de Souza ◽

Taynara Tuany Borges Valeriano

Keyword(s):

Soil Water ◽

Water Use ◽

Irrigation System ◽

Irrigation Management ◽

Fruit Weight ◽

Fruit Yield ◽

Stem Diameter ◽

Soil Water Tension ◽

Production And Consumption ◽

Water Tension

The production and consumption of muskmelon have been increasing (MELO et al., 2014), thus, information on techniques for higher field productions are necessary. The experiment described in the present work was conducted in the IFTM, Uberaba, State of Minas Gerais, Brazil, aiming to evaluate the muskmelon yield under different soil water tensions. A randomized block experimental design was used with five treatments (soil water tensions of 10, 20, 30, 40 and 50 kPa) and four replications (plots of two rows of 14 plants). Two harvests were carried out and the fruit yield, stem diameter, number of fruits per plant and efficiency of water use were evaluated. Irrigation was performed with a drip irrigation system and managed with tensiometry. The cultivar Bonus n.2 was used with spacing of 1.0 x 0.6 m. The data of the variables were subjected to the F test and regression test. The treatments showed statistical differences in number of fruits per plant, fruit weight (fruit yield) and stem diameter. The highest fruit yield found was 1.36 kg fruit-1 and the highest water use efficiency was 4.08 g mm-1 with irrigation for a soil water tension of 10 kPa. The lowest fruit yield was found with irrigation for a soil water tension of 50 kPa.

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Interactive effects of salinity and ozonated water on yield components of cucumber

Plant Soil and Environment ◽

10.17221/170/2016-pse ◽

2016 ◽

Vol 62 (No. 8) ◽

pp. 361-366 ◽

Cited By ~ 4

Author(s):

E. Peykanpour ◽

Ghehsareh AM ◽

J. Fallahzade ◽

M. Najarian

Keyword(s):

Salt Stress ◽

Vitamin C ◽

Irrigation Water ◽

Yield Components ◽

Dry Weight ◽

Fruit Weight ◽

Fruit Yield ◽

Water Salinity ◽

Fruit Number ◽

Ozonated Water

A greenhouse experiment was conducted to investigate the effects of salt stress and ozone on yield and yield components of cucumber. The treatments were defined by a two-factorial design of three irrigation water salinity levels (2, 4 and 6 dS/m) and three ozone concentrations (0, 0.5 and 1 ppm). After germination, cucumber seeds were grown in pots containing soil, coco peat and perlite and fed with Hoagland’s solution and were imposed with salt and ozone treatments. The results showed that salinity of irrigation water significantly reduced fruit yield of cucumber owing to a decrease both in fruit number and fruit weight. Also, statistical testing showed significant reductions in vitamin C, fresh and dry weight of shoot and root with increasing water salinity. Ozonated water improved fruit yield by increasing fruit number, but had no significant effect on fruit weight. Application of ozone caused significant increases in fresh and dry weight of shoot and leaf area but caused a significant decrease in the vitamin C. Generally, using ozonated water irrigation can induce positive effect on cucumber under salt stress. In conclusion, the saline water in combination with ozone could be recommended in strategic management to grow cucumber (without impaired effects on crop quantity).

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Induction of Variability in Three Nigerian Pepper Varieties using Gamma Irradiation

Journal of Experimental Agriculture International ◽

10.9734/jeai/2020/v42i430505 ◽

2020 ◽

pp. 111-119

Author(s):

N. E. Abu ◽

E. O. Ojua ◽

O. U. Udensi

Keyword(s):

Gamma Irradiation ◽

Morphological Traits ◽

Agronomic Traits ◽

Fruit Weight ◽

Fruit Yield ◽

Yield Traits ◽

Botanic Garden ◽

60Co Source ◽

Irradiation Dosage ◽

The University

This study was aimed at inducing mutation on three cultivars of Capsicum annuum L. to source for new and favourable genetic variations that could be exploited for better agronomic traits. The mutation was induced by exposing the seeds of Shombo, Tatase and Nsukka yellow pepper to varied dosages (0, 50, 100, 150 and 200 Gy from 60Co source) of gamma irradiation. The study was conducted in the Botanic Garden of the University of Nigeria. Seeds exposed to 50Gy produced significantly (P < 0.05) the highest number of fruits per plant, highest fruit yield and improved morphological traits in Shombo. Higher dosages of irradiation gave lower fruits per plant and yields than untreated seeds in Shombo. Tatase irradiated with 150 Gy had significantly the highest single fresh fruit weight. Generally in Tatase 50, 100 and 150Gy increased some morphological traits significantly (P < 0.05). Although 50 Gy gave highest number of fruits per plant, 100, 150 and 200Gy had significantly higher fruit yield with yield increasing as dosage increased. For Nsukka yellow, irradiation did not show a consistent pattern in improving morphological traits. But 200Gy produced significantly the highest number of fruits per plant and highest yield. Gamma irradiation dosage of 50 – 200 Gy can be exploited to create variability for improvement of morphological and yield traits in pepper plants.

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Effects of grafting on different rootstocks on tomato fruit yield and quality

Horticultural Science ◽

10.17221/51/2011-hortsci ◽

2011 ◽

Vol 38 (No. 4) ◽

pp. 142-149 ◽

Cited By ~ 30

Author(s):

A. Turhan ◽

N. Ozmen ◽

M.S. Serbeci ◽

V. Seniz

Keyword(s):

Vitamin C ◽

Dry Matter ◽

Tomato Fruit ◽

Fruit Weight ◽

Total Sugar ◽

Fruit Yield ◽

Soluble Solids ◽

Index Number ◽

Tomato Production ◽

Significant Difference

The aim of the study was to find effects of tomato grafting on another cultivar. The tomato cultivars used as scions were Yeni Talya, Swanson and Beril. Cultivars used as rootstocks were Beaufort and Arnold. Cleft grafting methods were applied. The following characteristics of grafted and nongrafted plants were recorded: fruit index, number of fruits/truss, fruit weight, fruit yield, dry matter, pH, concentration of soluble solids, titratable acidity, total sugar and lycopene and vitamin C. The results showed that fruit yield and fruit index, number of fruits/truss and fruit weights were improved by grafting. Fruit quality, measured in terms of dry matter, concentration of soluble solids, total sugar, and vitamin C content, was lower in the fruits of grafted plants than in nongrafted ones. No significant difference in lycopene and pH content was found. Titratable acid content was improved by grafting. A positive effect of grafting was recorded when Beaufort was used as rootstock. These results showed that grafting could be an advantageous alternative in tomato production.

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Conventional and Organic Honeys as a Source of Water- and Ethanol Soluble Molecules with Nutritional and Antioxidant Characteristics

Molecules ◽

10.3390/molecules26123746 ◽

2021 ◽

Vol 26 (12) ◽

pp. 3746

Author(s):

Magdalena Polak-Śliwińska ◽

Małgorzata Tańska

Keyword(s):

Antioxidant Activity ◽

Immune System ◽

Vitamin C ◽

Geographical Area ◽

Production Method ◽

Climatic Conditions ◽

Organic Production ◽

Organoleptic Characteristics ◽

Nutritional Characteristics ◽

The Impact

The benefits of natural honeybee products (e.g., honey, royal jelly, beeswax, propolis, beevenom and pollen) to the immune system are remarkable, and many of them are involved in the induction of antibody production, maturation of immune cells and stimulation of the immune system. The type of plants in the geographical area, climatic conditions and production method have a significantly influence on the nutritional quality of honey. However, this variability can influence consumer liking by the sensory attributes of the product. The aim of this work was to compare the most popular honeys from Poland in terms of nutritional value, organoleptic properties and antioxidant activity. In the study, five varieties of honey (honeydew, forest, buckwheat, linden and dandelion) from conventional and organic production methods were tested. The nutritional characteristics of honey samples included acidity, content of water, sugars, vitamin C, HMF and phenolics (total and flavonoids), while honey color, taste, aroma and consistency were investigated in the organoleptic characteristics. The antioxidant activity was determined in water- and ethanol-soluble honey extracts using DPPH and ORAC tests. The results showed that organoleptic and nutritional characteristics of popular Polish honeys differ significantly in relation to plant source and production method. The significant effect of honey variety on the content of HMF, saccharose and phenolics, as well as acidity and antioxidant capacity were noted. The impact of variety and variety × production method interaction was significant in the case of the content of vitamin C, glucose and fructose. A visible difference of buckwheat and forest honeys from other samples was observed. The highest content of total phenolics with antioxidant activity based on the SET mechanism was found in buckwheat honeys, while forest honeys were richer in flavonoids.

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Comparative Assessment of the Basic Chemical Composition and Antioxidant Activity of Stevia rebaudiana Bertoni Dried Leaves, Grown in Poland, Paraguay and Brazil—Preliminary Results

Applied Sciences ◽

10.3390/app11083634 ◽

2021 ◽

Vol 11 (8) ◽

pp. 3634

Author(s):

Teresa Leszczyńska ◽

Barbara Piekło ◽

Aneta Kopeć ◽

Benno F. Zimmermann

Keyword(s):

Antioxidant Activity ◽

Chemical Composition ◽

Vitamin C ◽

Dietary Fiber ◽

Radical Scavenging Activity ◽

Radical Scavenging ◽

Stevia Rebaudiana ◽

Steviol Glycosides ◽

Total Polyphenols ◽

Stevia Rebaudiana Bertoni

This study compares the content of basic nutrients (proteins, fats, digestible carbohydrates, dietary fiber and ash), steviol glycosides, selected antioxidants (vitamin C, total polyphenols) and antioxidant activity in dried leaves of Stevia rebaudiana Bertoni cultivated in Poland, Paraguay and Brazil and available in the direct sale. The basic chemical composition was determined by standard AOAC (Association of Official Analytical Chemists) methods. Content of steviol glycosides was determined by the UHPLC-UV chromatographic method. Total polyphenols content was expressed as gallic acid equivalent (GAE) and catechins equivalent (CE). Antioxidant activity was measured as ABTS●+ free radical scavenging activity. Dried leaves of S. rebaudiana grown in Poland had significantly higher contents of dietary fiber, and lower protein and ash content, compared to those derived from Paraguay and Brazil. The former had, however, considerably higher contents of total steviol glycosides, stevioside and rebaudioside D, compared to the remaining two plants. In the Paraguay-derived dried leaves, the content of rebaudioside A, C, E and rubusoside was found to be significantly lower. Dried leaves of S. rebaudiana Bertoni, cultivated in Poland, contained substantially more vitamin C and a similar content of total polyphenols, compared to those from Brazil and Paraguay. The examined material from Brazil and Paraguay plantations showed similar antioxidant activity, while that obtained from Polish cultivation was characterized by a significantly lower value of this parameter.

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