Nutrient Distribution and Stem Length in Flowering Stems of Protea Plants

González, Carlos Enrique Alvarez; Hernández, María Mercedes Arias; Fernández‐Falcón, Marino

doi:10.1080/01904160802244852

Cited by 4 publications

(7 citation statements)

References 4 publications

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“…The concentrations of N, P, K, Ca, Mg and Na obtained by González et al (2008) in several Leucospermum cultivars exceeded those detected in this study. Iron followed the same trend, but its values in one of the cultivars matched the ones of 'Succession II' and 'Tango'.…”

Section: Resultsmentioning

confidence: 64%

“…Phosphorus presented similar levels than the cultivars of this assay, while Fe exceeded them. González et al (2008) determined in five Leucospermum cultivars N and Zn concentrations close to those of this study. The same happened with Fe but only in two of the five cultivars.…”

Section: Resultsmentioning

confidence: 99%

“…On the other hand, González et al (2008) As in the previous two organs, the concentration of Na in the stems of both cultivars of Leucospermum exceeded by far that of the cultivar of Protea, while differences of the concentrations of some nutrients between the genera turned up once more. Fernández-Falcón et al (2008) found the highest N, Ca, Mg, Na and Mn contents in the leaves of five Leucospermum cultivars, and the lowest P, K and Cu in the stems, and Fe in the flower.…”

Section: Stemsmentioning

confidence: 96%

“…The nitrogen and potassium contents of stems and leaves significantly exceeded those of the other fractions of the flowering stem, and the flowers showed the lowest calcium and magnesium concentrations. González et al (2008) divided commercial flowers of five Leucospermum cultivars into flower head, half-distal and halfproximal stems, and half-proximal and half-distal leaves. Nutrient levels within every organ presented significant variations among cultivars.…”

Section: Introductionmentioning

confidence: 99%

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Nutrient distribution in flowering stems, nutrient removal and fertilization of three proteaceae cultivars

Hernández

Fernández‐Falcón

Alvarez

2014

Int. J. Agril. Res. Innov. & Tech.

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Several parameters of flowering stems of two cultivars of protea Leucospermum cordifolium (Knight) Fourc ('Succession II' and 'Tango') and one of protea Protea L. (Protea susannae x magnifica 'Susara') were studied in different commercial plantations. These included length and weight measures, nutrient concentrations of detached parts (flower heads, leaves and stems), and removal of nutrients of harvested flowers. A base for fertilization was also calculated. Harvested flowers of 'Susara' removed more P, K and Cu than 'Succession II' and 'Tango', and more Ca and Fe than 'Tango'. 'Succession II' showed the highest Zn removal. The P and Cu removal by the crop of 'Susara' were significantly higher than those of both Leucospermum cultivars, while K, Ca, and Fe outputs of 'Susara' exceeded only those of 'Tango'. The nutrient top removals amounted to 4.55 g m -2 of N, 0.48 g m -2 of P, and 5.26 g m -2 of K. Data as a base to supply fertilizer to each cultivar are given, with N:P:K ratios of 1:0.08:0.87 for 'Succession II', 1:0.08:0.83 for 'Tango' and 1:0.10:1.27 for 'Susara'.

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Section: Resultsmentioning

confidence: 64%

Section: Resultsmentioning

confidence: 99%

Section: Stemsmentioning

confidence: 96%

Section: Introductionmentioning

confidence: 99%

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Nutrient distribution in flowering stems, nutrient removal and fertilization of three proteaceae cultivars

Hernández

Fernández‐Falcón

Alvarez

2014

Int. J. Agril. Res. Innov. & Tech.

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“…In addition, Leucospermum needed high quantities of K relative to N (its K/N ratio was 1.6), whereas that of Protea was close to 1. Hernández et al (2008) and González et al (2008) observed remarkable differences in the nutrition and nutrient distribution of flowering stems within cultivars of the same species. Important nutrients such as P can cause toxicity effects in Proteaceae (Nichols, 1983;Prasad and Dennis, 1986;Corbella, 2008) because these plants are very sensitive to this nutrient concentrations.…”

Section: Introductionmentioning

confidence: 99%

Plant nutrition, foliar standards, chlorophyll activity and soil nutrient status of two cultivars of Leucospermum cordifolium (Proteaceae)

Álvarez¹,

Fernández‐Falcón²,

Hernández³

2012

Cienc. Inv. Agr.

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Two cultivars ('Succession II' and 'Tango') of Leucospermum cordifolium were studied over three years in commercial plantations with optimum yields located on subtropical La Palma Island (Canarian Archipelago). Four foliar samplings were taken per year to determine the evolution of the N, P, and K contents over time and to determine the optimal month for foliar standard sampling. Foliar chlorophyll activity and the foliar standard concentrations of macro-and micronutrients were determined. Soil samples were also taken. Both cultivars developed well in soils with acid and slightly acid pH, low and high organic matter content, and in some cases, high available P concentrations, though Proteaceae is generally considered P sensitive. Chlorophyll activity correlated neither with foliar nutrient levels nor with leaf greenness. The foliar N content reached a maximum of 17.0 g kg -1 in the cultivar 'Succession II' and 17.2 g kg -1 in 'Tango', whereas the maximum P and K levels were lower in 'Tango' than in 'Succession II'. The greatest stability of the concentrations of these nutrients occurred in September; therefore, this month was chosen for performing foliar standard sampling. The standard ranges of N, K, Ca and Mg were higher in 'Succession II', while Fe, Mn, and Zn were higher in 'Tango'. The P and Cu standard ranges were similar in both cultivars.

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Effect of the Concentration of Phosphorus on Growth and Nutrition ofLeucospermum cordifolium‘Flame Spike’

Corbella-Tena

Fernández‐Falcón

Rodríguez-Pérez

2014

Journal of Plant Nutrition

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The aim of this study was to determine how phosphorus (P) concentration affects growth, concentration and distribution of nutrients in Leucospermum cordifolium 'Flame Spike' (Proteaceae). The trials were performed at the School of Agriculture (ETSIA) of the University of La Laguna (28° 28' 43" N, 16° 19' 7" W) with 64 plants (1-year-old) grown for 12 months in silica sand, fed with nutrient solutions containing different levels of P i (5, 10, 15 and 20 mg L -1 ).At 6, 9, and 12 months, whole plants were taken from each experimental unit and divided into root, stem (main, first, second, and third growth) and leaves (adult, first, second, and third growth), which were measured, weighed, and analysed. The data enabled a nutritional diagnosis, including the limiting P concentrations and nutrient interactions. P concentrations above 5 mg L -1 caused a reduction in growth, which in the third samples was significant (P<0.05). Plants treated with 15 and 20 mg L -1 P attained similar dry weights (P> 0.05). Some young leaves showed a certain degree of chlorosis, probably due to iron (Fe) deficiency. Fully developed young leaves (YFEL) were suitable for nutritional diagnosis of P, and the P concentration of the nutrient solution affected the foliar manganese (Mn) concentration. This latter factor was related to the zinc (Zn) concentration in the roots.

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Nutrient Distribution and Stem Length in Flowering Stems of Protea Plants

Cited by 4 publications

References 4 publications

Nutrient distribution in flowering stems, nutrient removal and fertilization of three proteaceae cultivars

Nutrient distribution in flowering stems, nutrient removal and fertilization of three proteaceae cultivars

Plant nutrition, foliar standards, chlorophyll activity and soil nutrient status of two cultivars of Leucospermum cordifolium (Proteaceae)

Effect of the Concentration of Phosphorus on Growth and Nutrition ofLeucospermum cordifolium‘Flame Spike’

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