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Boron distribution and mobility in navel orange grafted on citrange and trifoliate orange

Identifieur interne : 001625 ( Main/Exploration ); précédent : 001624; suivant : 001626

Boron distribution and mobility in navel orange grafted on citrange and trifoliate orange

Auteurs : Gui-Dong Liu [République populaire de Chine] ; Rui-Dong Wang [République populaire de Chine] ; Li-Shu Wu [République populaire de Chine] ; Shu-Ang Peng [République populaire de Chine] ; Yun-Hua Wang [République populaire de Chine] ; Cun-Cang Jiang [République populaire de Chine]

Source :

Plant and soil [ 0032-079X ] ; 2012.

RBID : Pascal:12-0423157

Descripteurs français

Pascal (Inist)
- Distribution, Mobilité, Greffe, Translocation, Isotope, Relation sol plante, Citrus sinensis, Citroncirus webberi, Poncirus trifoliata, Bore, Orange.

English descriptors

KwdEn :
- Boron, Citroncirus webberi, Citrus sinensis, Distribution, Graft, Isotopes, Mobility, Orange, Poncirus trifoliata, Soil plant relation, Translocation.

Abstract

Background and Aims In China, boron (B) deficiency is frequently observed in citrus orchards, and is responsible for considerable loss of productivity and quality. A better understanding of B distribution and remobilization within orange plants is important for developing programs in rational fertilization and effective mitigation of B-deficiency. In the present study (i) the distribution of newly absorbed B and (ii) the translocation of foliar-applied B in 'Newhall' navel orange grafted on citrange and trifoliate orange was investigated. Methods ¹⁰B was applied in the nutrient solution or sprayed on the lower-old leaves of both grafted plants for 35 days. Results In the ¹⁰B uptake experiment, citrange-grafted plants showed higher newly acquired total B content and B concentration in both lower-old and upper-old leaves than those in trifoliate-orange-grafted plants. The newly absorbed B in the new leaves was much higher than that in the lower-old leaves and the upper-old leaves in both grafted plants. Foliar application of ¹⁰B to the lower-old leaves resulted in B translocation to the upper-old leaves and the new leaves with preference mainly to the new leaves in both citrange and trifoliate orange when root B supply was relatively low. However, ¹⁰B sprayed to the lower-old leaves not only did not increase the abundance percentage of ¹⁰B in the root, but also reduced B concentration and the total B content in the root. Conclusions The results suggest that foliar-applied B can be translocated within both grafted plants, which might also depress B uptake from root medium with low B supply. Rootstock can affect the B distribution in old leaves in navel orange, and newly absorbed B was preferentially transported to the new leaves.

Affiliations:

République populaire de Chine

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Le document en format XML

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<author><name sortKey="Jiang, Cun Cang" sort="Jiang, Cun Cang" uniqKey="Jiang C" first="Cun-Cang" last="Jiang">Cun-Cang Jiang</name>
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<series><title level="j" type="main">Plant and soil</title>
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<profileDesc><textClass><keywords scheme="KwdEn" xml:lang="en"><term>Boron</term>
<term>Citroncirus webberi</term>
<term>Citrus sinensis</term>
<term>Distribution</term>
<term>Graft</term>
<term>Isotopes</term>
<term>Mobility</term>
<term>Orange</term>
<term>Poncirus trifoliata</term>
<term>Soil plant relation</term>
<term>Translocation</term>
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<keywords scheme="Pascal" xml:lang="fr"><term>Distribution</term>
<term>Mobilité</term>
<term>Greffe</term>
<term>Translocation</term>
<term>Isotope</term>
<term>Relation sol plante</term>
<term>Citrus sinensis</term>
<term>Citroncirus webberi</term>
<term>Poncirus trifoliata</term>
<term>Bore</term>
<term>Orange</term>
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<front><div type="abstract" xml:lang="en">Background and Aims In China, boron (B) deficiency is frequently observed in citrus orchards, and is responsible for considerable loss of productivity and quality. A better understanding of B distribution and remobilization within orange plants is important for developing programs in rational fertilization and effective mitigation of B-deficiency. In the present study (i) the distribution of newly absorbed B and (ii) the translocation of foliar-applied B in 'Newhall' navel orange grafted on citrange and trifoliate orange was investigated. Methods <sup>10</sup>
B was applied in the nutrient solution or sprayed on the lower-old leaves of both grafted plants for 35 days. Results In the <sup>10</sup>
B uptake experiment, citrange-grafted plants showed higher newly acquired total B content and B concentration in both lower-old and upper-old leaves than those in trifoliate-orange-grafted plants. The newly absorbed B in the new leaves was much higher than that in the lower-old leaves and the upper-old leaves in both grafted plants. Foliar application of <sup>10</sup>
B to the lower-old leaves resulted in B translocation to the upper-old leaves and the new leaves with preference mainly to the new leaves in both citrange and trifoliate orange when root B supply was relatively low. However, <sup>10</sup>
B sprayed to the lower-old leaves not only did not increase the abundance percentage of <sup>10</sup>
B in the root, but also reduced B concentration and the total B content in the root. Conclusions The results suggest that foliar-applied B can be translocated within both grafted plants, which might also depress B uptake from root medium with low B supply. Rootstock can affect the B distribution in old leaves in navel orange, and newly absorbed B was preferentially transported to the new leaves.</div>
</front>
</TEI>
<affiliations><list><country><li>République populaire de Chine</li>
</country>
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<tree><country name="République populaire de Chine"><noRegion><name sortKey="Liu, Gui Dong" sort="Liu, Gui Dong" uniqKey="Liu G" first="Gui-Dong" last="Liu">Gui-Dong Liu</name>
</noRegion>
<name sortKey="Jiang, Cun Cang" sort="Jiang, Cun Cang" uniqKey="Jiang C" first="Cun-Cang" last="Jiang">Cun-Cang Jiang</name>
<name sortKey="Peng, Shu Ang" sort="Peng, Shu Ang" uniqKey="Peng S" first="Shu-Ang" last="Peng">Shu-Ang Peng</name>
<name sortKey="Wang, Rui Dong" sort="Wang, Rui Dong" uniqKey="Wang R" first="Rui-Dong" last="Wang">Rui-Dong Wang</name>
<name sortKey="Wang, Yun Hua" sort="Wang, Yun Hua" uniqKey="Wang Y" first="Yun-Hua" last="Wang">Yun-Hua Wang</name>
<name sortKey="Wu, Li Shu" sort="Wu, Li Shu" uniqKey="Wu L" first="Li-Shu" last="Wu">Li-Shu Wu</name>
</country>
</tree>
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</record>

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Boron distribution and mobility in navel orange grafted on citrange and trifoliate orange

Boron distribution and mobility in navel orange grafted on citrange and trifoliate orange

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