Effects of foliar sprayed calcium sources onTomato mosaic virus (ToMV) infection in tomato plants grown in greenhouses

Eraslan, Figen; Akbaş, Birol; İnal, Ali; Tarakçıoğlu, Ceyhan

doi:10.1007/bf02981110

Cited by 11 publications

(11 citation statements)

References 11 publications

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“…Also, it plays a role in activating antioxidant enzymes and enhancing the endurance of nutrient stress. These responses are similar to those obtained by Eraslan et al (2007) resulted that Ca concentrations in tomato fruits increased significantly with foliar-applied Ca, with the exception of CaNO3.…”

Section: Discussionsupporting

confidence: 88%

Effect of Interaction among N Forms and Calcium Sources on Quality and ‎Chemical Composition of Tomato(Lycopersicon esculentum)‎

2017

Egypt.J. Soil Sci.

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Twelve treatments were arranged in split block design with 3 replicates, which were the simple possible combination between three forms of nitrogen fertilizers [ammonium sulfate, ammonium nitrate and urea] as main plots, and four sources of calcium (control, calcium chloride, calcium sulfate and calcium nitrate) as sub plots. Thus the total number of plots used for the season was 36 plots.The results showed that; soil application of N-forms; ammonium sulfate, ammonium nitrate and urea significantly affected the average values of chlorophyll (a, b and total, mg.g-1), N, P, K and Ca% in the leaves and tomato quality of fruits such as N, P, K andCa%, V.C, total carbohydrates, lycobien , nitrate, acidity and TSS. Except for nitrate and acidity contentsthe highest mean valuewas recorded for the plants treated with ammonium sulfate,while such effect for nitrate and acidity contents were recorded for the treatments of ammonium nitrate and urea, respectivelyexcept for acidity values.Also, the results, indicated that the mean values of all mentioned parameters were significantly increased with using different sources of calcium; calcium nitrate, calcium chloride and calcium sulfate comparing with the untreated plants, and the highest values were recorded with using calcium nitrate as a source of calcium.On the contrary of this trend, the average values of acidity were significantly decreased under any source of calcium addition and recorded the highest value for the untreated plants.Generally, the most suitable treatment which realized the highest safe yield for tomato fruits was connected with the treatment of ammonium sulfate + Ca2NO3 .

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Section: Discussionsupporting

confidence: 88%

Effect of Interaction among N Forms and Calcium Sources on Quality and ‎Chemical Composition of Tomato(Lycopersicon esculentum)‎

2017

Egypt.J. Soil Sci.

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“…The growth rate of microorganisms has been shown to be tightly linked to N : P stoichiometry, RNA : protein ratio and ribosomal requirement for protein synthesis (Elser et al, 2003;Karpinets et al, 2006). Altered nutrient supply rates and ratios are known to influence pathogen infection and reproduction across a diversity of hosts and their pathogens (Spencer, 1941;Bawden & Kassanis, 1950a;Merrett & Sunderland, 1965;Kaplan & Bergman, 1985;Adam et al, 1987;Field et al, 2002;Solomon et al, 2003, p. 2;Clasen & Elser, 2007;Eraslan et al, 2007;Smith, 2007;Frost et al, 2008;Dordas, 2009;Seabloom et al, 2013;Borer et al, 2014b), but see Rousk et al, 2011). The effects of environmental nutrient supply on pathogen population dynamics act via host nutrient uptake, which, for many plants, reflects environmental supply (Williams, 1948;Farage, 1998).…”

Section: Introductionmentioning

confidence: 99%

Environmental nutrient supply alters prevalence and weakens competitive interactions among coinfecting viruses

2014

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SummaryThe rates and ratios of environmental nutrient supplies can determine plant community composition. However, the effect of nutrient supplies on within-host microbial interactions is poorly understood. Resource competition is a promising theory for understanding microbial interactions, because microparasites require nitrogen (N) and phosphorus (P) for synthesis of macromolecules such as nucleic acids and proteins.To better understand the effects of nutrient supplies to hosts on pathogen interactions, we singly inoculated and coinoculated Avena sativa with two virus species, barley yellow dwarf virus-PAV (BYDV-PAV) and cereal yellow dwarf virus-RPV (CYDV-RPV). Host plants were grown across a factorial combination of N and P supply rates that created a gradient of N : P supply ratios, one being replicated at low and high nutrient supply.Nutrient supply affected prevalence and the interaction strength among viruses. P addition lowered CYDV-RPV prevalence. The two viruses had a distinct competitive hierarchy: the coinoculation of BYDV-PAV lowered CYDV-RPV infection rate, but the reverse was not true. This antagonistic interaction occurred at low nutrient supply rates and disappeared at high N supply rate.Given the global scale of human alterations of N and P cycles, these results suggest that elevated nutrient supply will increase risks of virus coinfection with likely effects on virus epidemiology, virulence and evolution.

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“…The trial' results have shown that boron enhanced cacao trees' tolerance to the CSSVD. However, the boron effect on the viral load needed to be assessed, as it was the case with Tobacco mosaic virus on beans and tobacco, Tomato yellow leaf curl virus and Tomato mosaic virus on tomatoes (Dordas, 2008;Eraslan et al, 2007;Shepherd et al, 1960).…”

Section: Discussionmentioning

confidence: 99%

Foliar Application of Boron during Flowering Promotes Tolerance to Cocoa (Theobroma cacao L.) Swollen Shoot Viral Disease

Kouadio

Tienebo

Kouadio

et al. 2017

ESJ

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Boron nutrition is known to reduce the effect of some viral and fungal diseases on plant fitness. This study investigated the potential of boron application to improve yield and tolerance of cacao trees naturally infected by virulent cocoa swollen shoot virus (CSSV) strains and determined the effective dose and time of application. Foliar sprays of a commercial product containing 20.5% of boron were performed either at the onset of flowering’s peak of the little milking (early in November) or four weeks later (early in December) with four doses of boron (0, 31.25, 41.67, and 83.27 g/ha) in a randomized complete block design with four replications. We found that boron application improved foliar density and induced production of pods of normal shape meanwhile reducing the appearance of this misshapenness due to CSSV. Boron also increased the number of emitted flowers, cherelles and pods subsequently. Moreover, weight and size of fresh cocoa beans per pod were positively correlated to boron dosage. Interestingly, foliar sprays performed early in November resulted in less flat cocoa beans. Finally, the optimal dose of boron that reduced the adverse effects of the most virulent form of cocoa swollen shoot viral disease is 41.67 g/ha.

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Effects of foliar sprayed calcium sources onTomato mosaic virus (ToMV) infection in tomato plants grown in greenhouses

Cited by 11 publications

References 11 publications

Effect of Interaction among N Forms and Calcium Sources on Quality and ‎Chemical Composition of Tomato(Lycopersicon esculentum)‎

Effect of Interaction among N Forms and Calcium Sources on Quality and ‎Chemical Composition of Tomato(Lycopersicon esculentum)‎

Environmental nutrient supply alters prevalence and weakens competitive interactions among coinfecting viruses

Foliar Application of Boron during Flowering Promotes Tolerance to Cocoa (Theobroma cacao L.) Swollen Shoot Viral Disease

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