OrangerV1, Main, Merge, bibRecord, 002947

Partial defoliation can decrease average leaf size but has little effect on orange tree growth, fruit yield and juice quality

Identifieur interne : 002947 ( Main/Merge ); précédent : 002946; suivant : 002948

Partial defoliation can decrease average leaf size but has little effect on orange tree growth, fruit yield and juice quality

Auteurs : RONGCAI YUAN [États-Unis] ; Fernando Alferez [États-Unis] ; Igor Kostenyuk [États-Unis] ; Shila Singh [États-Unis] ; James P. Syvertsen [États-Unis] ; Jacqueline K. Burns [États-Unis]

Source :

HortScience [ 0018-5345 ] ; 2005.

RBID : Pascal:06-0027961

Descripteurs français

Pascal (Inist)
- Défoliation, Diminution, Feuille végétal, Croissance, Arbre fruitier, Rendement, Fruit, Surface foliaire, Ratio, Citrus sinensis, Enlèvement, Horticulture.
Wicri :
- topic : Défoliation, Fruit, Ratio, Horticulture.

English descriptors

KwdEn :
- Citrus sinensis, Decrease, Defoliation, Fruit, Fruit tree, Growth, Horticulture, Leaf area, Plant leaf, Ratio, Removal, Yield.

Abstract

The effects of 2 consecutive years of annual defoliation during the harvest season on fruit size, yield, juice quality, leaf size and number were examined in trees of the midseason cultivar' Hamlin' and the late-season cultivar 'Valencia' orange |Citrus sinensis (L.) Osb.]. In 'Hamlin', removal of up to 50% of the leaves in late November had no effect on fruit yield, fruit number, fruit size, soluble solids yield, juice °Brix, and °Brix to acid ratio of juice the following year. In 'Valencia', removal of 50% of the leaves in late March decreased fruit yield and soluble solids yield but did not affect Brix or the Brix to acid ratio of the juice. Leaf size of new flush was reduced by removal of 50% of the leaves in both cultivars but there was little effect on total canopy size. There were no measured effects of removing 25% of leaves from tree canopies. Thus, canopy growth, fruit yield, fruit quality, and leaf size were not negatively impacted when annual defoliations did not exceed 25% of the total canopy leaf area in 'Valencia' and 'Hamlin' orange trees for two consecutive years. Overall, fruit weight increased linearly with increasing ratio of leaf area to fruit number, suggesting that fruit enlargement can be limited by leaf area.

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Pascal:06-0027961

Le document en format XML

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<author><name sortKey="Syvertsen, James P" sort="Syvertsen, James P" uniqKey="Syvertsen J" first="James P." last="Syvertsen">James P. Syvertsen</name>
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<profileDesc><textClass><keywords scheme="KwdEn" xml:lang="en"><term>Citrus sinensis</term>
<term>Decrease</term>
<term>Defoliation</term>
<term>Fruit</term>
<term>Fruit tree</term>
<term>Growth</term>
<term>Horticulture</term>
<term>Leaf area</term>
<term>Plant leaf</term>
<term>Ratio</term>
<term>Removal</term>
<term>Yield</term>
</keywords>
<keywords scheme="Pascal" xml:lang="fr"><term>Défoliation</term>
<term>Diminution</term>
<term>Feuille végétal</term>
<term>Croissance</term>
<term>Arbre fruitier</term>
<term>Rendement</term>
<term>Fruit</term>
<term>Surface foliaire</term>
<term>Ratio</term>
<term>Citrus sinensis</term>
<term>Enlèvement</term>
<term>Horticulture</term>
</keywords>
<keywords scheme="Wicri" type="topic" xml:lang="fr"><term>Défoliation</term>
<term>Fruit</term>
<term>Ratio</term>
<term>Horticulture</term>
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<front><div type="abstract" xml:lang="en">The effects of 2 consecutive years of annual defoliation during the harvest season on fruit size, yield, juice quality, leaf size and number were examined in trees of the midseason cultivar' Hamlin' and the late-season cultivar 'Valencia' orange |Citrus sinensis (L.) Osb.]. In 'Hamlin', removal of up to 50% of the leaves in late November had no effect on fruit yield, fruit number, fruit size, soluble solids yield, juice °Brix, and °Brix to acid ratio of juice the following year. In 'Valencia', removal of 50% of the leaves in late March decreased fruit yield and soluble solids yield but did not affect Brix or the Brix to acid ratio of the juice. Leaf size of new flush was reduced by removal of 50% of the leaves in both cultivars but there was little effect on total canopy size. There were no measured effects of removing 25% of leaves from tree canopies. Thus, canopy growth, fruit yield, fruit quality, and leaf size were not negatively impacted when annual defoliations did not exceed 25% of the total canopy leaf area in 'Valencia' and 'Hamlin' orange trees for two consecutive years. Overall, fruit weight increased linearly with increasing ratio of leaf area to fruit number, suggesting that fruit enlargement can be limited by leaf area.</div>
</front>
</TEI>
<affiliations><list><country><li>États-Unis</li>
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<tree><country name="États-Unis"><noRegion><name sortKey="Rongcai Yuan" sort="Rongcai Yuan" uniqKey="Rongcai Yuan" last="Rongcai Yuan">RONGCAI YUAN</name>
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<name sortKey="Alferez, Fernando" sort="Alferez, Fernando" uniqKey="Alferez F" first="Fernando" last="Alferez">Fernando Alferez</name>
<name sortKey="Burns, Jacqueline K" sort="Burns, Jacqueline K" uniqKey="Burns J" first="Jacqueline K." last="Burns">Jacqueline K. Burns</name>
<name sortKey="Kostenyuk, Igor" sort="Kostenyuk, Igor" uniqKey="Kostenyuk I" first="Igor" last="Kostenyuk">Igor Kostenyuk</name>
<name sortKey="Singh, Shila" sort="Singh, Shila" uniqKey="Singh S" first="Shila" last="Singh">Shila Singh</name>
<name sortKey="Syvertsen, James P" sort="Syvertsen, James P" uniqKey="Syvertsen J" first="James P." last="Syvertsen">James P. Syvertsen</name>
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</record>

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Partial defoliation can decrease average leaf size but has little effect on orange tree growth, fruit yield and juice quality

Partial defoliation can decrease average leaf size but has little effect on orange tree growth, fruit yield and juice quality

Source :

Descripteurs français

English descriptors

Abstract

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

Links to Exploration step

Le document en format XML

Pour manipuler ce document sous Unix (Dilib)

Pour mettre un lien sur cette page dans le réseau Wicri