Distribution pattern of dry weight, nitrogen, phosphorus, and potassium through tomato ontogenesis

Tapia, María Luisa; Gutiérrez, Víctor Manuel Olalde

doi:10.1080/01904169709365294

Cited by 14 publications

(6 citation statements)

References 5 publications

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“…O pen-field tomato production in Florida occurs on %32,000 acres and generates above $630 million in gross sales (U.S. Department of Agriculture, 2011). Potassium is one of the two most-absorbed essential elements for tomato growth and development (Carpena et al, 1988;Chapagain et al, 2003;Chen and Gabelman, 1999;Tapia and Gutierrez, 1997). Tomato crop uptake could exceed 300 kgÁha -1 of K and the majority is translocated to the fruit (Hartz et al, 2002;Widders and Lorenz, 1979).…”

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confidence: 99%

Effects of Preplant Potassium Sources and Rates for Tomato Production

Santos

2013

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A two-season study was conducted to assess the effects of preplant potassium (K) fertilization rates and sources on the growth and yield of beefsteak tomato (Solanum lycopersicum). Fourteen treatments resulted from the combination of two K sources: sulfate of potash [SOP (0N–0P–42K)] and muriate of potash [MOP (potassium chloride, 0N–0P–50K)] and seven preplant K rates (0, 50, 100, 200, 300, 400, and 500 lb/acre). Soil electrical conductivity (EC) at 4 weeks after transplanting was influenced by the interaction between preplant K rates and sources. When SOP was applied, soil EC increased from 0.4 dS·m−1 with no preplant K application to ≈1.3 dS·m−1 with a rate of 500 lb/acre of preplant K. However, the soil EC steadily increased from 0.4 to 3.0 dS·m−1 as preplant K rates increased from 0 to 500 lb/acre when MOP was used as the nutrient source. The combined effect of the preplant application of K rates and sources influenced the seasonal extra-large and total marketable fruit weight, which increased steadily with K rates, regardless of the sources, from 0 to 300 lb/acre. At K rates between 300 and 500 lb/acre, there were no extra-large and total fruit weight differences among rates when SOP was applied. In contrast, extra-large and total marketable fruit weight declined when rates increased from 300 to 500 lb/acre of K and MOP was applied to the soil. Data demonstrated that plots treated with MOP at rates higher than 300 lb/acre of K increased soil EC and caused a decline on extra-large and total marketable fruit weight of tomato.

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confidence: 99%

Effects of Preplant Potassium Sources and Rates for Tomato Production

Santos

2013

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“…Similarly, Csizinszky (1999) reported that K concentrations were lower than 20 g · kg -1 in tomato shoots at 102 DAT with 180 kg · ha -1 or lower in acid-mineral soils containing 56 mg · kg -1 of K. Potassium rate of 223 kg · ha -1 resulted in higher LTKC than the sufficient value at 60 DAT of both years and at 95 DAT in 2015, indicating potentially luxury consumption of K and overfertilization. Previous researches showed that there was a high demand for K and rapid redistribution of K from leaf and stem to fruit during fruit production (Huang and Snapp, 2009;Tapia and Gutierrez, 1997). Thus, even though the initial soil K was sufficient to support vegetative growth, significant difference in fruit biomass was observed at 95 DAT in both years.…”

Section: Discussionmentioning

confidence: 93%

Responses of Tomato to Potassium Rates in a Calcareous Soil

Zhu

Ozores-Hampton

et al. 2017

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Florida produces the most vegetables in the United States during the winter season with favorable weather conditions. However, vegetables grown on calcareous soils in Florida have no potassium (K) fertilizer recommendation. The objective of this study was to evaluate the effects of K rates on leaf tissue K concentration (LTKC), plant biomass, fruit yield, and postharvest quality of tomatoes (Solanum lycopersicum L.) grown on a calcareous soil. The experiment was conducted during the winter seasons of 2014 and 2015 in Homestead, FL. Potassium fertilizers were applied at rates of 0, 56, 93, 149, 186, and 223 kg·ha−1 of K and divided into preplant dry fertilizer and fertigation during the season. No deficiency of LTKC was found at 30 days after transplanting (DAT) in both years. Potassium rates lower than 149 kg·ha−1 resulted in deficient LTKC at 95 DAT in 2014. No significant responses to K rates were observed in plant (leaf, stem, and root combined) dry weight biomass at all the sampling dates in both years. However, at 95 DAT, fruit dry weight biomass increased with increasing K rates to 130 and 147 kg·ha−1, reaching a plateau thereafter indicated by the linear-plateau models in 2014 and 2015, respectively. Predicted from quadratic and linear-plateau models, K rates of 173 and 178 kg·ha−1 were considered as the optimum rates for total season marketable yields in 2014 and 2015, respectively. Postharvest qualities, including fruit firmness, pH, and total soluble solids (TSS) content, were not significantly affected by K rates in both years. Overall, K rate of 178 kg·ha−1 was sufficient to grow tomato during the winter season in calcareous soils with 78 to 82 mg·kg−1 of ammonium bicarbonate-diethylenetriaminepentaacetic acid (AB-DTPA)-extracted K in Florida.

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“…In adult plants under greenhouse conditions, grafting onto rootstocks of different vigor increase NUE, as the result of an enhancement in N uptake. In tomato crops, only 25% of the total N demand is absorbed during the vegetative stage [20]. After fruit onset, an important increase in plant's N demand occurs, as the result of the high strength of fruits as sinks for N and N-containing compounds, which are utilized to synthesize amino acids, proteins, enzymes, and secondary metabolites in the fruits [40][41][42][43].…”

Section: Nue and Developmental Stagementioning

confidence: 99%

“…The demand for N drastically increases in tomato crops when switching from the vegetative to the reproductive stage [20]. Therefore, it is expected that NUE also changes through the ontogenesis of plants.…”

Section: Introductionmentioning

confidence: 99%

Rootstock x Environment Interactions on Nitrogen-Use Efficiency in Grafted Tomato Plants at Different Phenological Stages

et al. 2020

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The use of grafting techniques for horticultural crops increases plant tolerance to various abiotic and biotic stresses. Tomato production under greenhouse conditions relies on plants grafted onto vigorous rootstocks because they sustain crops for longer periods. Growers under Mediterranean conditions usually grow crops in passive greenhouses during the summer and winter season, to provide fresh products throughout the year. No information is available with regard to the effect of the environment on nitrogen-use efficiency (NUE) in tomato plants grafted onto rootstocks with different vigor. In the present study, NUE, along with its components—uptake (NUpE) and utilization (NUtE) efficiencies—were evaluated in tomato plants grafted onto two interspecific rootstocks, conferring medium (“King Kong”) or high (“Kaiser”) vigor to the plants. The evaluations were carried out during the vegetative and reproductive stage in plants subjected to different environmental conditions resulting in different plant growth rates. The grafting treatments did not affect NUE, NUpE or NUtE in young plants, but at the reproductive stage, differences were found during the summer season (high N demand) where the vigorous rootstock increased NUpE from 55%, in non-grafted plants, to 94%, with the consequent differences in NUE. During the winter crop, no differences in NUE were found between the vigorous rootstock and non-grafted plants, but the less vigorous (cold-tolerant) rootstock enhanced NUpE. Significant positive relationships were found between plant growth rate and both NUE and NUpE, while NUtE decreased with increasing growth rate.

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Distribution pattern of dry weight, nitrogen, phosphorus, and potassium through tomato ontogenesis

Cited by 14 publications

References 5 publications

Effects of Preplant Potassium Sources and Rates for Tomato Production

Effects of Preplant Potassium Sources and Rates for Tomato Production

Responses of Tomato to Potassium Rates in a Calcareous Soil

Rootstock x Environment Interactions on Nitrogen-Use Efficiency in Grafted Tomato Plants at Different Phenological Stages

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