Gibberellic acid, rootstocks, and post-freeze fruit quality of 'rohde red' valencia oranges
Identifieur interne : 000485 ( PascalFrancis/Corpus ); précédent : 000484; suivant : 000486Gibberellic acid, rootstocks, and post-freeze fruit quality of 'rohde red' valencia oranges
Auteurs : Frederick S. Davies ; Glenn ZalmanSource :
- HortScience [ 0018-5345 ] ; 2007.
Descripteurs français
- Pascal (Inist)
English descriptors
- KwdEn :
Abstract
The authors' objectives were to determine whether gibberellic acid (GA3) initially increases juice content of 'Rohde Red' valencia oranges and prevents or delays decreases in juice content after a freeze, and to determine whether there is an interaction between GA3, rootstock, and juice content. The experiment consisted of a 2 (+, -GA3) x 3 (rootstock) factorial using a completely randomized design with 10 replications per treatment. Gibberellic acid was applied to mature 'Rohde Red' valencia [Citrus sinensis (L.) Osb.] orange trees on three rootstocks-Citrus volkameriana Ten. & Pasq.(Volk), Swingle citumelo [C. paradisi Macf. xPoncirus trifoliata (L.) Raf.], and Carrizo citrange [C. sinensis xP. trifoliata]-at color break in Fall 2002, 2003, and 2004. Juice content, soluble solids content (SSC), titratable acidity (TA), ratio of SSC to TA, and kilogram solids per box were determined at about 2-week intervals after several freezes. In 2002-03 and 2004-05, juice content in the fall was greater and the rate of decrease in juice content lower for GA3-treated fruit than nontreated fruit for about 8 weeks after a freeze. In contrast, in 2003-04, juice content and rate of decrease in juice content were not different between treatments. Juice content was lower for fruit from 'Rohde Red' trees on Volk compared with those on Carrizo and Swingle, and more important, the rate of decrease in juice content after a freeze was greatest for trees on Volk in all three seasons. Soluble solids content, TA, SSC-to-TA ratio, and kilogram solids generally were not effected by GA3 treatment. Therefore, GA3 application at color break in the fall generally increased juice content and slowed the rate of decrease in juice content after a freeze compared with nontreated fruit. In addition, juice content differed significantly with rootstock, but there was no GA3 x rootstock interaction.
Notice en format standard (ISO 2709)
Pour connaître la documentation sur le format Inist Standard.
pA |
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Format Inist (serveur)
NO : | PASCAL 07-0272520 INIST |
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ET : | Gibberellic acid, rootstocks, and post-freeze fruit quality of 'rohde red' valencia oranges |
AU : | DAVIES (Frederick S.); ZALMAN (Glenn) |
AF : | Department of Horticultural Sciences, University of Florida, P.O. Box 110690/Gainesville, FL 32611/Etats-Unis (1 aut., 2 aut.) |
DT : | Publication en série; Niveau analytique |
SO : | HortScience; ISSN 0018-5345; Coden HJHSAR; Etats-Unis; Da. 2007; Vol. 42; No. 3; Pp. 565-570; Bibl. 1/4 p. |
LA : | Anglais |
EA : | The authors' objectives were to determine whether gibberellic acid (GA3) initially increases juice content of 'Rohde Red' valencia oranges and prevents or delays decreases in juice content after a freeze, and to determine whether there is an interaction between GA3, rootstock, and juice content. The experiment consisted of a 2 (+, -GA3) x 3 (rootstock) factorial using a completely randomized design with 10 replications per treatment. Gibberellic acid was applied to mature 'Rohde Red' valencia [Citrus sinensis (L.) Osb.] orange trees on three rootstocks-Citrus volkameriana Ten. & Pasq.(Volk), Swingle citumelo [C. paradisi Macf. xPoncirus trifoliata (L.) Raf.], and Carrizo citrange [C. sinensis xP. trifoliata]-at color break in Fall 2002, 2003, and 2004. Juice content, soluble solids content (SSC), titratable acidity (TA), ratio of SSC to TA, and kilogram solids per box were determined at about 2-week intervals after several freezes. In 2002-03 and 2004-05, juice content in the fall was greater and the rate of decrease in juice content lower for GA3-treated fruit than nontreated fruit for about 8 weeks after a freeze. In contrast, in 2003-04, juice content and rate of decrease in juice content were not different between treatments. Juice content was lower for fruit from 'Rohde Red' trees on Volk compared with those on Carrizo and Swingle, and more important, the rate of decrease in juice content after a freeze was greatest for trees on Volk in all three seasons. Soluble solids content, TA, SSC-to-TA ratio, and kilogram solids generally were not effected by GA3 treatment. Therefore, GA3 application at color break in the fall generally increased juice content and slowed the rate of decrease in juice content after a freeze compared with nontreated fruit. In addition, juice content differed significantly with rootstock, but there was no GA3 x rootstock interaction. |
CC : | 002A32 |
FD : | Porte greffe; Gel; Qualité production; Fruit; Résistance froid; Résistance gel; Horticulture; Rutaceae; Citrus sinensis; Gibbérellique acide; Orange; Substance croissance végétal |
FG : | Dicotyledones; Angiospermae; Spermatophyta; Arbre fruitier; Agrume; Plante fruitière; Gibbérelline; Terpénoïde; Composé organique; Isoprénoïde |
ED : | Rootstock; Freeze; Production quality; Fruit; Cold resistance; Frost resistance; Horticulture; Rutaceae; Citrus sinensis; Gibberellic acid; Orange; Plant growth substance |
EG : | Dicotyledones; Angiospermae; Spermatophyta; Fruit tree; Citrus fruit; Fruit crop; Gibberellin; Terpenoid; Organic compounds; Isoprenoid |
SD : | Portainjerto; Helada; Calidad producción; Fruto; Resistencia frío; Resistencia hielo; Horticultura; Rutaceae; Citrus sinensis; Giberelico ácido; Naranja; Substancia crecimiento vegetal |
LO : | INIST-13300.354000162240580220 |
ID : | 07-0272520 |
Links to Exploration step
Pascal:07-0272520Le document en format XML
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<term>Gibberellic acid</term>
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<front><div type="abstract" xml:lang="en">The authors' objectives were to determine whether gibberellic acid (GA<sub>3</sub>
) initially increases juice content of 'Rohde Red' valencia oranges and prevents or delays decreases in juice content after a freeze, and to determine whether there is an interaction between GA<sub>3</sub>
, rootstock, and juice content. The experiment consisted of a 2 (+, -GA<sub>3</sub>
) x 3 (rootstock) factorial using a completely randomized design with 10 replications per treatment. Gibberellic acid was applied to mature 'Rohde Red' valencia [Citrus sinensis (L.) Osb.] orange trees on three rootstocks-Citrus volkameriana Ten. & Pasq.(Volk), Swingle citumelo [C. paradisi Macf. xPoncirus trifoliata (L.) Raf.], and Carrizo citrange [C. sinensis xP. trifoliata]-at color break in Fall 2002, 2003, and 2004. Juice content, soluble solids content (SSC), titratable acidity (TA), ratio of SSC to TA, and kilogram solids per box were determined at about 2-week intervals after several freezes. In 2002-03 and 2004-05, juice content in the fall was greater and the rate of decrease in juice content lower for GA<sub>3</sub>
-treated fruit than nontreated fruit for about 8 weeks after a freeze. In contrast, in 2003-04, juice content and rate of decrease in juice content were not different between treatments. Juice content was lower for fruit from 'Rohde Red' trees on Volk compared with those on Carrizo and Swingle, and more important, the rate of decrease in juice content after a freeze was greatest for trees on Volk in all three seasons. Soluble solids content, TA, SSC-to-TA ratio, and kilogram solids generally were not effected by GA<sub>3</sub>
treatment. Therefore, GA<sub>3</sub>
application at color break in the fall generally increased juice content and slowed the rate of decrease in juice content after a freeze compared with nontreated fruit. In addition, juice content differed significantly with rootstock, but there was no GA<sub>3</sub>
x rootstock interaction.</div>
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<server><NO>PASCAL 07-0272520 INIST</NO>
<ET>Gibberellic acid, rootstocks, and post-freeze fruit quality of 'rohde red' valencia oranges</ET>
<AU>DAVIES (Frederick S.); ZALMAN (Glenn)</AU>
<AF>Department of Horticultural Sciences, University of Florida, P.O. Box 110690/Gainesville, FL 32611/Etats-Unis (1 aut., 2 aut.)</AF>
<DT>Publication en série; Niveau analytique</DT>
<SO>HortScience; ISSN 0018-5345; Coden HJHSAR; Etats-Unis; Da. 2007; Vol. 42; No. 3; Pp. 565-570; Bibl. 1/4 p.</SO>
<LA>Anglais</LA>
<EA>The authors' objectives were to determine whether gibberellic acid (GA<sub>3</sub>
) initially increases juice content of 'Rohde Red' valencia oranges and prevents or delays decreases in juice content after a freeze, and to determine whether there is an interaction between GA<sub>3</sub>
, rootstock, and juice content. The experiment consisted of a 2 (+, -GA<sub>3</sub>
) x 3 (rootstock) factorial using a completely randomized design with 10 replications per treatment. Gibberellic acid was applied to mature 'Rohde Red' valencia [Citrus sinensis (L.) Osb.] orange trees on three rootstocks-Citrus volkameriana Ten. & Pasq.(Volk), Swingle citumelo [C. paradisi Macf. xPoncirus trifoliata (L.) Raf.], and Carrizo citrange [C. sinensis xP. trifoliata]-at color break in Fall 2002, 2003, and 2004. Juice content, soluble solids content (SSC), titratable acidity (TA), ratio of SSC to TA, and kilogram solids per box were determined at about 2-week intervals after several freezes. In 2002-03 and 2004-05, juice content in the fall was greater and the rate of decrease in juice content lower for GA<sub>3</sub>
-treated fruit than nontreated fruit for about 8 weeks after a freeze. In contrast, in 2003-04, juice content and rate of decrease in juice content were not different between treatments. Juice content was lower for fruit from 'Rohde Red' trees on Volk compared with those on Carrizo and Swingle, and more important, the rate of decrease in juice content after a freeze was greatest for trees on Volk in all three seasons. Soluble solids content, TA, SSC-to-TA ratio, and kilogram solids generally were not effected by GA<sub>3</sub>
treatment. Therefore, GA<sub>3</sub>
application at color break in the fall generally increased juice content and slowed the rate of decrease in juice content after a freeze compared with nontreated fruit. In addition, juice content differed significantly with rootstock, but there was no GA<sub>3</sub>
x rootstock interaction.</EA>
<CC>002A32</CC>
<FD>Porte greffe; Gel; Qualité production; Fruit; Résistance froid; Résistance gel; Horticulture; Rutaceae; Citrus sinensis; Gibbérellique acide; Orange; Substance croissance végétal</FD>
<FG>Dicotyledones; Angiospermae; Spermatophyta; Arbre fruitier; Agrume; Plante fruitière; Gibbérelline; Terpénoïde; Composé organique; Isoprénoïde</FG>
<ED>Rootstock; Freeze; Production quality; Fruit; Cold resistance; Frost resistance; Horticulture; Rutaceae; Citrus sinensis; Gibberellic acid; Orange; Plant growth substance</ED>
<EG>Dicotyledones; Angiospermae; Spermatophyta; Fruit tree; Citrus fruit; Fruit crop; Gibberellin; Terpenoid; Organic compounds; Isoprenoid</EG>
<SD>Portainjerto; Helada; Calidad producción; Fruto; Resistencia frío; Resistencia hielo; Horticultura; Rutaceae; Citrus sinensis; Giberelico ácido; Naranja; Substancia crecimiento vegetal</SD>
<LO>INIST-13300.354000162240580220</LO>
<ID>07-0272520</ID>
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