OrangerV1, Main, Exploration, bibRecord, 002B18

Tree size and flowering intensity as affected by nitrogen fertilization in non-bearing orange trees grown under Mediterranean conditions

Identifieur interne : 002B18 ( Main/Exploration ); précédent : 002B17; suivant : 002B19

Tree size and flowering intensity as affected by nitrogen fertilization in non-bearing orange trees grown under Mediterranean conditions

Auteurs : Maria Regina Menino [Portugal] ; Corina Carranca [Portugal] ; Amarilis De Varennes [Portugal] ; Victor Valente D'Almeida [Portugal] ; José Baeta [Portugal]

Source :

Journal of plant physiology [ 0176-1617 ] ; 2003.

RBID : Pascal:04-0060531

Descripteurs français

Pascal (Inist)
- Floraison, Fleur, Feuille végétal, Fertilisation azotée, Relation dose réponse, Composante rendement, Hauteur plante, Diamètre, Analyse foliaire, Citrus sinensis, Azote, Potassium, Magnésium, Composition chimique, Irrigation fertilisante.
Wicri :
- topic : Azote, Potassium, Magnésium.

English descriptors

KwdEn :
- Calcium (metabolism), Chemical composition, Citrus sinensis, Citrus sinensis (drug effects), Citrus sinensis (growth & development), Citrus sinensis (metabolism), Diameter, Dose activity relation, Fertigation, Fertilizers (analysis), Flower, Flowering, Flowers (drug effects), Flowers (growth & development), Flowers (metabolism), Foliar analysis, Magnesium, Magnesium (metabolism), Mediterranean Region, Nitrogen, Nitrogen (pharmacology), Nitrogen fertilization, Phosphorus (metabolism), Plant height, Plant leaf, Potassium, Potassium (metabolism), Time Factors, Yield component.
MESH :
- chemical , analysis : Fertilizers.
- chemical , metabolism : Calcium, Magnesium, Phosphorus, Potassium.
- chemical , pharmacology : Nitrogen.
- geographic : Mediterranean Region.
- drug effects : Citrus sinensis, Flowers.
- growth & development : Citrus sinensis, Flowers.
- metabolism : Citrus sinensis, Flowers.
- Time Factors.

Abstract

A field experiment was conducted in the South of Portugal with young (0-3 years old) non-bearing orange trees. Five nitrogen (N) rates were used in a randomised block design with three replicates. The 180 g N tree^-1 over three years led to the greatest canopy width (176 cm) and volume (2,697dm³). The greatest rate applied (720 g N tree^-1 in the three years) led to the largest flower yield. Nitrogen concentration in the flowers significantly increased with fertilizer N, and also with the flowering period up to the 23^rd day, declining thereafter. Flower yield was strongly correlated (r = 0.99. p <0.001) with flower N concentration. Nutrient composition of flowers and of mature leaves from the spring flush was compared. Significant correlations were found for N (r = 0.47, p < 0.01), P (r = -0.49, p<0.01), K (r= 0.44, p<0.05) and Ca (r= 0.87, p <0.001), suggesting that flowers can be used as a tool to diagnose the nutritional status of trees. Canonical analysis (with N treatment as dummy-variables) showed strong relationships between canopy width and N, which were greater at the larger rates of fertilizer application, and strong and inverse relationships between K and Mg, also with the greatest N rates.

Affiliations:

Portugal

Le document en format XML

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<author><name sortKey="Menino, Maria Regina" sort="Menino, Maria Regina" uniqKey="Menino M" first="Maria Regina" last="Menino">Maria Regina Menino</name>
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<sourceDesc><biblStruct><analytic><title xml:lang="en" level="a">Tree size and flowering intensity as affected by nitrogen fertilization in non-bearing orange trees grown under Mediterranean conditions</title>
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<profileDesc><textClass><keywords scheme="KwdEn" xml:lang="en"><term>Calcium (metabolism)</term>
<term>Chemical composition</term>
<term>Citrus sinensis</term>
<term>Citrus sinensis (drug effects)</term>
<term>Citrus sinensis (growth & development)</term>
<term>Citrus sinensis (metabolism)</term>
<term>Diameter</term>
<term>Dose activity relation</term>
<term>Fertigation</term>
<term>Fertilizers (analysis)</term>
<term>Flower</term>
<term>Flowering</term>
<term>Flowers (drug effects)</term>
<term>Flowers (growth & development)</term>
<term>Flowers (metabolism)</term>
<term>Foliar analysis</term>
<term>Magnesium</term>
<term>Magnesium (metabolism)</term>
<term>Mediterranean Region</term>
<term>Nitrogen</term>
<term>Nitrogen (pharmacology)</term>
<term>Nitrogen fertilization</term>
<term>Phosphorus (metabolism)</term>
<term>Plant height</term>
<term>Plant leaf</term>
<term>Potassium</term>
<term>Potassium (metabolism)</term>
<term>Time Factors</term>
<term>Yield component</term>
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<keywords scheme="MESH" type="chemical" qualifier="metabolism" xml:lang="en"><term>Calcium</term>
<term>Magnesium</term>
<term>Phosphorus</term>
<term>Potassium</term>
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<keywords scheme="MESH" type="chemical" qualifier="pharmacology" xml:lang="en"><term>Nitrogen</term>
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<keywords scheme="MESH" type="geographic" xml:lang="en"><term>Mediterranean Region</term>
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<keywords scheme="MESH" qualifier="drug effects" xml:lang="en"><term>Citrus sinensis</term>
<term>Flowers</term>
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<keywords scheme="MESH" qualifier="growth & development" xml:lang="en"><term>Citrus sinensis</term>
<term>Flowers</term>
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<keywords scheme="MESH" qualifier="metabolism" xml:lang="en"><term>Citrus sinensis</term>
<term>Flowers</term>
</keywords>
<keywords scheme="MESH" xml:lang="en"><term>Time Factors</term>
</keywords>
<keywords scheme="Pascal" xml:lang="fr"><term>Floraison</term>
<term>Fleur</term>
<term>Feuille végétal</term>
<term>Fertilisation azotée</term>
<term>Relation dose réponse</term>
<term>Composante rendement</term>
<term>Hauteur plante</term>
<term>Diamètre</term>
<term>Analyse foliaire</term>
<term>Citrus sinensis</term>
<term>Azote</term>
<term>Potassium</term>
<term>Magnésium</term>
<term>Composition chimique</term>
<term>Irrigation fertilisante</term>
</keywords>
<keywords scheme="Wicri" type="topic" xml:lang="fr"><term>Azote</term>
<term>Potassium</term>
<term>Magnésium</term>
</keywords>
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<front><div type="abstract" xml:lang="en">A field experiment was conducted in the South of Portugal with young (0-3 years old) non-bearing  orange trees. Five nitrogen (N) rates were used in a randomised block design with three replicates. The 180 g N tree<sup>-1</sup>
 over three years led to the greatest canopy width (176 cm) and volume (2,697dm<sup>3</sup>
). The greatest rate applied (720 g N tree<sup>-1</sup>
 in the three years) led to the largest flower yield. Nitrogen concentration in the flowers significantly increased with fertilizer N, and also with the flowering period up to the 23<sup>rd</sup>
 day, declining thereafter. Flower yield was strongly correlated (r = 0.99. p <0.001) with flower N concentration. Nutrient composition of flowers and of mature leaves from the spring flush was compared. Significant correlations were found for N (r = 0.47, p < 0.01), P (r = -0.49, p<0.01), K (r= 0.44, p<0.05) and Ca (r= 0.87, p <0.001), suggesting that flowers can be used as a tool to diagnose the nutritional status of trees. Canonical analysis (with N treatment as dummy-variables) showed strong relationships between canopy width and N, which were greater at the larger rates of fertilizer application, and strong and inverse relationships between K and Mg, also with the greatest N rates.</div>
</front>
</TEI>
<affiliations><list><country><li>Portugal</li>
</country>
</list>
<tree><country name="Portugal"><noRegion><name sortKey="Menino, Maria Regina" sort="Menino, Maria Regina" uniqKey="Menino M" first="Maria Regina" last="Menino">Maria Regina Menino</name>
</noRegion>
<name sortKey="Baeta, Jose" sort="Baeta, Jose" uniqKey="Baeta J" first="José" last="Baeta">José Baeta</name>
<name sortKey="Carranca, Corina" sort="Carranca, Corina" uniqKey="Carranca C" first="Corina" last="Carranca">Corina Carranca</name>
<name sortKey="D Almeida, Victor Valente" sort="D Almeida, Victor Valente" uniqKey="D Almeida V" first="Victor Valente" last="D'Almeida">Victor Valente D'Almeida</name>
<name sortKey="De Varennes, Amarilis" sort="De Varennes, Amarilis" uniqKey="De Varennes A" first="Amarilis" last="De Varennes">Amarilis De Varennes</name>
</country>
</tree>
</affiliations>
</record>

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Tree size and flowering intensity as affected by nitrogen fertilization in non-bearing orange trees grown under Mediterranean conditions

Tree size and flowering intensity as affected by nitrogen fertilization in non-bearing orange trees grown under Mediterranean conditions

Source :

Descripteurs français

English descriptors

Abstract

Links toward previous steps (curation, corpus...)

Le document en format XML

Pour manipuler ce document sous Unix (Dilib)

Pour mettre un lien sur cette page dans le réseau Wicri

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