Influence of different types of fertilisers on the major antioxidant components of tomatoes

Toor, Ramandeep K.; Savage, Geoffrey P.; Heeb, Anuschka

doi:10.1016/j.jfca.2005.03.003

Cited by 253 publications

(192 citation statements)

References 44 publications

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“…In line with these findings, Chatterjee et al (2013) reported enhanced fruit quality attributes; particularly total solids and vitamin content in plants receiving higher amounts of organic manure and reduced levels of inorganic nitrogen. The results are further substantiated by Toor et al (2006) who demonstrated a significantly higher TSS for fruits harvested from plants that received compost than those harvested from the mineral fertilized plots.…”

Section: Effect Of Different Doses Of Vermicompost and Np Fertilizer mentioning

confidence: 68%

The integrated use of excreta-based vermicompost and inorganic NP fertilizer on tomato (Solanum lycopersicum L.) fruit yield, quality and soil fertility

Mengistu

Gebrekidan

Kibret

et al. 2017

Int J Recycl Org Waste Agricult

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Purpose A field study was conducted at Dire Dawa, Eastern Ethiopia, with an objective to find out an optimum combination of inorganic (NP) fertilizer and excreta-based vermicompost for best economic yield and quality of tomato and to assess their effect on selected physicochemical properties of amended soil after crop harvest. Methods The experiment consisted of eight treatments where the mineral (NP) fertilizer and the excreta-based vermicompost were combined in different proportions being arranged in a completely randomized block design replicated three times.Results Growth, yield and quality attributes of tomato as well as the post-harvest soil nutrient status were markedly influenced by the nutrient treatments. The highest values for the various growth, yield and quality attributing parameters were recorded for the treatment combination consisting 75% of the recommended rate of NP fertilizer ? 11.25 ton ha -1 vermicompost (T6), this treatment was also observed to have the highest net benefit with acceptable economic return as well as a fairly high residual soil nutrient status. Following this treatment, is the integration of 50% of recommended rate of NP fertilizer ? 7.5 ton ha -1 vermicompost (T3) which surpassed the sole mineral fertilizer and vermicompost in terms of the crop's yield and its economic return. Conclusion 25-50% of the recommended rate of chemical fertilizer can be supplemented through vermicompost. However, in order to generate more reliable information, there is a need to conduct more such studies using more integration ratios of these nutrient sources (NP fertilizer and vermicompost) at various soil and agro-climatic conditions.

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Section: Effect Of Different Doses Of Vermicompost and Np Fertilizer mentioning

confidence: 68%

The integrated use of excreta-based vermicompost and inorganic NP fertilizer on tomato (Solanum lycopersicum L.) fruit yield, quality and soil fertility

Mengistu

Gebrekidan

Kibret

et al. 2017

Int J Recycl Org Waste Agricult

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“…Lycopene content was extracted from tomatoes with a hexaneacetone-ethanol (2:1:1) mixture using Sharma and Le Maguer's (1996) and Toor's et al (2006) methods. Vitamin C content was measured by a Metrohm 670 titroprocessor (Metrohm Herisau, Switzerland) using the method of the Association of Official Analytical Chemists (AOAC, 1990;Toor et al, 2006). Antioxidant activity was estimated by the Trolox Equivalent Antioxidant Activity method (Miller and Rice-Evans, 1997).…”

Section: Fruit Qualitymentioning

confidence: 99%

Yield and nutrient content of tomato (Solanum lycopersicum L.) as influenced by Trichoderma harzianum and Glomus mosseae inoculation

Nzanza

Marais

Soundy

2012

Scientia Horticulturae

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Recent trends in soil microbiology suggest that fungal inoculants such as Trichoderma harzianum or arbuscular mycorrhizal fungi (AMF) have the potential to improve yield and fruit quality of crops. The purpose of this study was to investigate the effect of inoculating tomato (Solanum lycopersicum L.) with T. harzianum and the AMF (Glomus mosseae) on yield and nutrient content of tomato fruit. A factorial experiment (3 × 3) with three application timings for each of T. harzianum and AMF, namely uninoculated control, inoculated before sowing and two weeks after sowing, giving nine treatment combinations was conducted in a greenhouse. Both T. harzianum and AMF increased total yield and marketable yield of tomato (P >0.05). Inoculating tomato with AMF before sowing significantly increased the percentage of extra-large fruit, while inoculation with T. harzianum two weeks after sowing lowered the Ca and Mg contents of tomato fruit. Trichoderma harzianum and AMF inoculation increased the lycopene content, but did not affect the antioxidant activity, total flavonoids or vitamin C of the tomato fruit. Results of this study suggested that T. harzianum and AMF have the potential to influence yield and nutrient content of tomato in a greenhouse.

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“…In fruits and vegetables, some authors have observed the effects of nitrogen (N) fertilization on pH, concentration of soluble solids, titratable acidity, and antioxidant activity, as well as vitamin C content, antioxidant compounds, and nitrate content (WARNER; ZHANG; HAO, 2004;HEEB et al, 2005;TOOR;SAVAGE;HEEB, 2006;KOPSELL, 2006;KEMAL et al, 2007).…”

Section: Introductionmentioning

confidence: 99%

“…Some studies have shown that the application of high levels of N-NH 4 + and low levels of N-NO 3 -improves fruit quality (MARINO et al, 2001;FLORES et al, 2003). Differences in the supply and availability of nutrients in various fertilizers can affect the production of secondary metabolites (TOOR; SAVAGE; HEEB, 2006).…”

Section: Introductionmentioning

confidence: 99%

Quality and Antioxidant Activiy of Tomato Cultivated Under Different Sources and Doses of Nitrogen

et al. 2016

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-Tomatoes are an important component of the human diet because they are rich in minerals and antioxidants that sequester free radicals in cells, preventing various disorders that affect human health. Here, we aimed to evaluate the effects of different nitrogen sources and concentrations on antioxidant capacity and physical and chemical quality of tomato fruit. The experiment was conducted in Vitória da Conquista, state of Bahia, Brazil, in the experimental field of Universidade Estadual do Sudoeste da Bahia. The experimental setup included a randomized block design with four replicates in a factorial layout of 3 × 3 + 1 (control), for a total of 40 plots. The three treatments comprised different nitrogen sources (calcium nitrate, urea, and ammonium sulfate), applied in three doses (140, 280, and 420 kg ha -1 ). We evaluated firmness, pH, titratable acidity -TA, soluble solid -SS, SS/TA ratio, ascorbic acid, carotenoids, flavonoids, phenolic compounds and DPPH inhibition, were evaluated after samples were harvested. However, increasing concentrations of N adversely affected the acidity and led to an increase in the SS/TA ratio. Increasing the N concentration also reduced the content of bioactive compounds. excluding carotenoids, which consequently impaired antioxidant activity.Keywords: Solanum lycopersicum L.. Bioactive compounds. Antioxidant capacity. Ammonium. Nitrate. QUALIDADE E ATIVIDADE ANTIOXIDANTE DE TOMATE CULTIVADO SOB DIFERENTES FONTES E DOSES DE NITROGÊNIORESUMO -O tomate é um importante componente da dieta humana, pois é rico em sais minerais e compostos antioxidante que sequestram os radicais livres presentes nas células do organismo, evitando vários distúrbios na saúde humana. O presente trabalho teve o objetivo de avaliar os efeitos de fontes e doses de nitrogênio sobre a capacidade antioxidante e a qualidade físico-química dos frutos do tomateiro. O experimento foi realizado na cidade de Vitória da conquista -BA, no campo experimental da Universidade Estadual do Sudoeste da Bahia. O delineamento experimental utilizado foi em blocos casualizados, com quatro repetições em esquema fatorial 3 × 3 + 1 (testemunha), totalizando 40 parcelas. Os tratamentos foram compostos por três fontes de Nitrogênio (nitrato de cálcio, ureia e sulfato de amônio) e três doses (140, 280 e 420 kg ha -1 ). Após a colheita foram avaliados os atributos da qualidade do fruto: firmeza, pH, acidez titulável, sólidos solúveis, ratio, ácido ascórbico, DPPH, compostos fenólicos, carotenoides, flavonóides. Os níveis crescentes de N influenciaram negativamente nos conteúdos de acidez titulável, por outro lado, proporcionou aumento na relação SS/AT. Os incrementos de N também reduziram o conteúdo de compostos bioativos, exceto carotenoide, consequentemente prejudicou a atividade antioxidante.

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Influence of different types of fertilisers on the major antioxidant components of tomatoes

Cited by 253 publications

References 44 publications

The integrated use of excreta-based vermicompost and inorganic NP fertilizer on tomato (Solanum lycopersicum L.) fruit yield, quality and soil fertility

The integrated use of excreta-based vermicompost and inorganic NP fertilizer on tomato (Solanum lycopersicum L.) fruit yield, quality and soil fertility

Yield and nutrient content of tomato (Solanum lycopersicum L.) as influenced by Trichoderma harzianum and Glomus mosseae inoculation

Quality and Antioxidant Activiy of Tomato Cultivated Under Different Sources and Doses of Nitrogen

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