Characterization of the Physiological Response of the Highly-Tolerant Tomato Cv. ‘Poncho Negro’ to Salinity and Excess Boron

Díaz, María Isabel Hernández; Bastías, Elizabeth; Pacheco, Patricia; Tapia, Luis; Martínez-Ballesta, María del Carmen; Carvajal, Micaela

doi:10.1080/01904167.2011.580813

Cited by 11 publications

(8 citation statements)

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“…In summary, the present and previous studies show that the "Poncho Negro" variety is able to adjust osmotically by increasing turgor, and no toxic effects of salinity and excess of B were observed (Contreras et al, 2011;Díaz et al, 2011). Masood et al, (2012) concluded that the effects of salt are different at different levels of B supply.…”

Section: Discussionmentioning

confidence: 93%

“…Moreover, a previous study showed that cv. "Poncho Negro" increases leaf K + , which increases or maintains leaf turgor under stress conditions (Díaz et al, 2011). In addition, the ability to maintain K + homeostasis during salt stress is considered a characteristic of better salt tolerance (Hauser and Horie, 2010).…”

Section: Resultsmentioning

confidence: 99%

“…The functions of other compatible solutes such as glucose and sucrose include osmotic adjustment, carbon storage and radical scavenging (Parida et al, 2002). Previous studies reported high levels of soluble sugar and proline accumulated in leaves of "Poncho Negro" tomato plants grown under salinity and excess B, but the increase was different depending on the salinity and B treatment (Contreras et al, 2011;Díaz et al, 2011). In the present study the application of OM in soil changed the behaviour of plants, maintaining similar levels of both solutes compared to the control.…”

Section: Discussionmentioning

confidence: 99%

“…Boron toxicity is an agricultural problem that reduces crop yield (Bonilla and González-Fontes, 2011). Irrigation with saline groundwater containing high B concentrations occurs worldwide, with notable examples found in several areas; Israel, USA, Canada and Chile (Díaz et al, 2011). The mechanics of the relationship between B and salinity are not yet elucidated.…”

Section: Introductionmentioning

confidence: 99%

“…Under salinity these plants increased their turgor, possibly due to a decrease in leaf water potential through the reduction in the leaf osmotic potential by accumulation of soluble sugars and proline (Contreras et al, 2011); the interaction of B and salinity reduced the movement of Na + to the leaves by accumulating more leaf B (Díaz et al, 2011).…”

Section: Introductionmentioning

confidence: 99%

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Remediation of salt and boron-affected soil by addition of organic matter: an investigation into improving tomato plant productivity

Esteban

Pacheco

Tapia

et al. 2016

Idesia

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To mitigate the effect of salt stress and excess B in soil and consequently increase crop yield and improve the behaviour of cv. "Poncho Negro" there are low-cost strategies such as the application of organic amendments. This study aimed at remediating excess salt (150 mM NaCl) and B (20 mg L -1 B) in soil using organic matter treatment (4% and 6%). Stress was supplied by irrigation. The rate of net CO 2 assimilation, B, Na + , K and Ca 2+ content, soluble sugars and proline were measured. All growth parameters measured were higher with 6% organic matter (OM) in soil than with 4% OM, including salinity treatments and excessive B, while Na + and B concentrations were reduced in leaves and roots. The photosynthesis rate was maintained at the level of control plants with 6% OM applied in soil in treatments with salinity alone and with excess B. In the salinity alone treatment there was a marked increase in the content of compatible solutes, but with the application of 6% OM their content was reduced by more than 100%. The remediation of salt and boron-affected soil by addition of organic matter (6%) is an effective way to improve the behaviour of tomato.Key words: organic matter, boric acid, salinity, Solanum lycopersicum L. RESUMEN Para mitigar el efecto del estrés de sal y exceso B en el suelo y, consecuentemente, aumentar y mejorar el comportamiento de cv. de tomate "Poncho Negro", como una estrategia de bajo costo como es la aplicación de enmiendas orgánicas. Este estudio tuvo como objetivo remediar el exceso de sal (NaCl 150 mM) y B (20 mg L -1 B) en el suelo mediante el tratamiento de aplicación de materia orgánica (4% y 6% M.O.). El estrés

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Section: Discussionmentioning

confidence: 93%

Section: Resultsmentioning

confidence: 99%