Relationship between biochemical indicators and physiological parameters of nitrogen and physiological plant age

Valenzuela, J. L.; Guzmán, M.; Parra, Andrés; Río, Alfonso del; Romero, Luís

doi:10.1007/978-94-017-2496-8_40

Cited by 3 publications

(2 citation statements)

References 15 publications

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“…This shift in the N metabolism probably toward the formation of quaternary N compounds which reduces the presence of free NH 4 in the tissue studied. Nitrate foliar concentrations were lower than those reported for a related plant species (Valenzuela et al, 1993a(Valenzuela et al, , 1993b. The values obtained were only similar in T o , while the other treatments showed a decrease in leaf levels owing to the high levels of Cl in both the soil and the leaf.…”

Section: Resultscontrasting

confidence: 63%

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Plant nitrogen characteristics of a semi‐salt‐tolerant zucchini variety to sodium chloride treatments

Víllora¹,

Pulgar²,

Moreno³

et al. 1998

Journal of Plant Nutrition

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Plants of a Zucchini (Cucurbita pepo L. var. Moschata) cultivar considered to be semi-salt-tolerant were grown in artificial soil in 1-m containers under greenhouse conditions with differing supplies of sodium chloride (NaCl) [0 (T 0 ), 30 (T 1 ), 60 (T 2 ) or 120 (T 3 ) g m -2 plot -1 ] during the entire growth cycle. These plants were used to determine the concentrations of nitrogen (N) forms and fractions, together with antagonistic anions in both leaves and fruits. The ammonium (NH 4 ) concentration increased and nitrate (NO 3 ) concentration decreased in both leaves and fruits, and chloride (Cl) concentration increased while sulphate (SO 4 ) concentration decreased in both leaves and fruits with NaCl treatments. Organic-N concentration in leaves increased according to the soil salinity treatments, while in the fruit there was a slight increase at low salinity, although values returned to those of the control when soil salinity increased. In leaves there was an increase in proline concentrations when salinity was low. As soil salinity increased further, this level then fell slightly. In the fruit skin, however, proline concentration decreased as soil salinity 2343 VÍLLORAETAL.increased. Soluble protein and amino-acid concentrations in the skin of the fruit increased when there was a moderate increase in soil salinity from T 0 to T 1 . However, as soil salinity increased further, these concentrations decreased and returned to levels near the control. The results of fruit yield showed a positive effect of the NaCl treatments with an enhancement of commercial and also total fruit yield and a decrease in substandard fruit yield.

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Section: Resultscontrasting

confidence: 63%

“…The low variation in the concentration of SO 4 in fruit (Table 2) is somewhat surprising. These levels may be considered as normal (Valenzuela et al, 1993a(Valenzuela et al, , 1993b, as there is an inverse relationship between the Cl level in both the rhizosphere and the fruit and SO 4 levels in the fruit.…”

Section: Resultsmentioning

confidence: 98%

Plant nitrogen characteristics of a semi‐salt‐tolerant zucchini variety to sodium chloride treatments

Víllora¹,

Pulgar²,

Moreno³

et al. 1998

Journal of Plant Nutrition

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Effects of nitrogen, phosphrous and potassium treatments on phosphorus fractions in melon plants

Valenzuela

Ruiz

Belakbir

et al. 1996

Communications in Soil Science and Plant Analysis

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Efecto de la salinidad sobre el crecimiento vegetativo de plantas de mora de Castilla (<i>Rubus glaucus</i> Benth.) micorrizadas y sin micorrizar

Cardona

Gutiérrez

Monsalve

et al. 2017

Rev. Colomb. Cienc. Hortic.

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La mora en Colombia generalmente se siembra en suelos sin limitantes de salinidad, pero una fertilización basada en fuentes de síntesis química sin tener en cuenta sus requerimientos nutricionales o usar gallinaza sin compostar, podría ocasionar un efecto salino a largo plazo. En esta investigación se estimó el efecto de diferentes concentraciones de solución salina (0, 40, 80 y 120 mM NaCl) sobre el crecimiento vegetativo y absorción de nutrientes de plantas de mora de Castilla (Rubus glaucus Benth.) micorrizadas con Glomus proliferum Dalpé & Declerck cepa GB02 y sin micorrizar. Se estableció un diseño completamente al azar en arreglo factorial (4×2). Se evaluó crecimiento radical, acumulación de materia fresca y seca, concentración y absorción de nutrientes en hoja, tallo y raíz. Se encontró que la inoculación con micorrizas incrementó el crecimiento de las plantas bajo condiciones de estrés salino (40 y 80 mM), debido a un posible aumento de la adquisición de nutrientes minerales con una baja movilidad y a la toma reducida del Na. Con una concentración salina de 120 mM se disminuyó la absorción de Ca y se aumentó la de Na, lo que conllevó un menor consumo de agua. Igualmente, la planta disminuyó su capacidad para producir suficientes fotoasimilados que promovieran su desarrollo y el del hongo formador de micorriza, por lo que su crecimiento y producción de biomasa disminuyó notablemente. La asociación con el hongo permitió una mayor selectividad de la planta por el ión potasio, que por el sodio.

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Relationship between biochemical indicators and physiological parameters of nitrogen and physiological plant age

Cited by 3 publications

References 15 publications

Plant nitrogen characteristics of a semi‐salt‐tolerant zucchini variety to sodium chloride treatments

Plant nitrogen characteristics of a semi‐salt‐tolerant zucchini variety to sodium chloride treatments

Effects of nitrogen, phosphrous and potassium treatments on phosphorus fractions in melon plants

Efecto de la salinidad sobre el crecimiento vegetativo de plantas de mora de Castilla (<i>Rubus glaucus</i> Benth.) micorrizadas y sin micorrizar

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