Relationships between trunk- and fruit-diameter growths under deficit-irrigation programmes in orange trees
Identifieur interne : 000122 ( PascalFrancis/Corpus ); précédent : 000121; suivant : 000123Relationships between trunk- and fruit-diameter growths under deficit-irrigation programmes in orange trees
Auteurs : Iván Francisco Garcia-Tejero ; Victor Hugo Duran-Zuazo ; Javier Arriaga ; José Luis Muriel-FernandezSource :
- Scientia horticulturae [ 0304-4238 ] ; 2012.
Descripteurs français
- Pascal (Inist)
English descriptors
- KwdEn :
Abstract
This study examines the suitability of trunk dendrometers for assessing fruit growth under deficit irrigation (DI) for two consecutive years in a mature citrus orchard. Two DI programmes were applied during the maximum evapotranspirative demand period: sustained-deficit irrigation, applied at 50% ETc on average, and low-frequency deficit irrigation, applied according to plant-water status, establishing different irrigation-restriction cycles. Additionally, a control treatment at 100% ETc was monitored for the entire irrigation season. Trunk daily growth (TDG) and fruit daily growth (FDG) were estimated together with stem-water potential at midday (Ψstem) and the maximum daily shrinkage of the trunk (MDS). Significant relationships were determined for (Ψstem vs. TDG (R2 = 0.60), and vs. FDG (R2 = 0.78). In addition, significant relationships were established between TDG vs. FDG (R2 = 0.60), and between the daily increment of MDS (ΔMDS) and FDG (R2 = 0.50), revealing the strong connection between trunk and fruit variations caused by water stress. According to these findings, the DI effects on fruit growth can be monitored by means of TDF or temporal evolution of Ψstem, promising automation possibilities for appropriately regulating irrigation under DI programmes, and predicting its effects on fruit size by continuous field measurement.
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Format Inist (serveur)
NO : | PASCAL 12-0175988 INIST |
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ET : | Relationships between trunk- and fruit-diameter growths under deficit-irrigation programmes in orange trees |
AU : | GARCIA-TEJERO (Iván Francisco); DURAN-ZUAZO (Victor Hugo); ARRIAGA (Javier); MURIEL-FERNANDEZ (José Luis) |
AF : | IFAPA Centro "Las Torres-Tomejil", Ctra. Sevilla-Cazalla Km, 12,2, 41.200 Alcalá del Río/Sevilla/Espagne (1 aut., 2 aut., 3 aut., 4 aut.) |
DT : | Publication en série; Niveau analytique |
SO : | Scientia horticulturae; ISSN 0304-4238; Coden SHRTAH; Pays-Bas; Da. 2012; Vol. 133; Pp. 64-71; Bibl. 3/4 p. |
LA : | Anglais |
EA : | This study examines the suitability of trunk dendrometers for assessing fruit growth under deficit irrigation (DI) for two consecutive years in a mature citrus orchard. Two DI programmes were applied during the maximum evapotranspirative demand period: sustained-deficit irrigation, applied at 50% ETc on average, and low-frequency deficit irrigation, applied according to plant-water status, establishing different irrigation-restriction cycles. Additionally, a control treatment at 100% ETc was monitored for the entire irrigation season. Trunk daily growth (TDG) and fruit daily growth (FDG) were estimated together with stem-water potential at midday (Ψstem) and the maximum daily shrinkage of the trunk (MDS). Significant relationships were determined for (Ψstem vs. TDG (R2 = 0.60), and vs. FDG (R2 = 0.78). In addition, significant relationships were established between TDG vs. FDG (R2 = 0.60), and between the daily increment of MDS (ΔMDS) and FDG (R2 = 0.50), revealing the strong connection between trunk and fruit variations caused by water stress. According to these findings, the DI effects on fruit growth can be monitored by means of TDF or temporal evolution of Ψstem, promising automation possibilities for appropriately regulating irrigation under DI programmes, and predicting its effects on fruit size by continuous field measurement. |
CC : | 002A32C03B |
FD : | Fruit; Accroissement diamètre; Déficit hydrique; Irrigation; Dendrométrie; Tige; Potentiel hydrique; Stress hydrique; Horticulture; Citrus sinensis |
FG : | Rutaceae; Dicotyledones; Angiospermae; Spermatophyta; Agrume |
ED : | Fruit; Diameter increment; Water deficit; Irrigation; Forest mensuration; Stem; Water potential; Water stress; Horticulture; Citrus sinensis |
EG : | Rutaceae; Dicotyledones; Angiospermae; Spermatophyta; Citrus fruit |
SD : | Fruto; Aumento diámetro; Deficiencia agua; Irrigación; Dendrometría; Tallo; Potencial hídrico; Estrés hídrico; Horticultura; Citrus sinensis |
LO : | INIST-16233.354000508491900110 |
ID : | 12-0175988 |
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Pascal:12-0175988Le document en format XML
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<term>Irrigation</term>
<term>Stem</term>
<term>Water deficit</term>
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<front><div type="abstract" xml:lang="en">This study examines the suitability of trunk dendrometers for assessing fruit growth under deficit irrigation (DI) for two consecutive years in a mature citrus orchard. Two DI programmes were applied during the maximum evapotranspirative demand period: sustained-deficit irrigation, applied at 50% ET<sub>c</sub>
on average, and low-frequency deficit irrigation, applied according to plant-water status, establishing different irrigation-restriction cycles. Additionally, a control treatment at 100% ET<sub>c</sub>
was monitored for the entire irrigation season. Trunk daily growth (TDG) and fruit daily growth (FDG) were estimated together with stem-water potential at midday (Ψ<sub>stem</sub>
) and the maximum daily shrinkage of the trunk (MDS). Significant relationships were determined for (Ψ<sub>stem</sub>
vs. TDG (R<sup>2</sup>
= 0.60), and vs. FDG (R<sup>2</sup>
= 0.78). In addition, significant relationships were established between TDG vs. FDG (R<sup>2</sup>
= 0.60), and between the daily increment of MDS (ΔMDS) and FDG (R<sup>2</sup>
= 0.50), revealing the strong connection between trunk and fruit variations caused by water stress. According to these findings, the DI effects on fruit growth can be monitored by means of TDF or temporal evolution of Ψ<sub>stem</sub>
, promising automation possibilities for appropriately regulating irrigation under DI programmes, and predicting its effects on fruit size by continuous field measurement.</div>
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<fC01 i1="01" l="ENG"><s0>This study examines the suitability of trunk dendrometers for assessing fruit growth under deficit irrigation (DI) for two consecutive years in a mature citrus orchard. Two DI programmes were applied during the maximum evapotranspirative demand period: sustained-deficit irrigation, applied at 50% ET<sub>c</sub>
on average, and low-frequency deficit irrigation, applied according to plant-water status, establishing different irrigation-restriction cycles. Additionally, a control treatment at 100% ET<sub>c</sub>
was monitored for the entire irrigation season. Trunk daily growth (TDG) and fruit daily growth (FDG) were estimated together with stem-water potential at midday (Ψ<sub>stem</sub>
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vs. TDG (R<sup>2</sup>
= 0.60), and vs. FDG (R<sup>2</sup>
= 0.78). In addition, significant relationships were established between TDG vs. FDG (R<sup>2</sup>
= 0.60), and between the daily increment of MDS (ΔMDS) and FDG (R<sup>2</sup>
= 0.50), revealing the strong connection between trunk and fruit variations caused by water stress. According to these findings, the DI effects on fruit growth can be monitored by means of TDF or temporal evolution of Ψ<sub>stem</sub>
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<server><NO>PASCAL 12-0175988 INIST</NO>
<ET>Relationships between trunk- and fruit-diameter growths under deficit-irrigation programmes in orange trees</ET>
<AU>GARCIA-TEJERO (Iván Francisco); DURAN-ZUAZO (Victor Hugo); ARRIAGA (Javier); MURIEL-FERNANDEZ (José Luis)</AU>
<AF>IFAPA Centro "Las Torres-Tomejil", Ctra. Sevilla-Cazalla Km, 12,2, 41.200 Alcalá del Río/Sevilla/Espagne (1 aut., 2 aut., 3 aut., 4 aut.)</AF>
<DT>Publication en série; Niveau analytique</DT>
<SO>Scientia horticulturae; ISSN 0304-4238; Coden SHRTAH; Pays-Bas; Da. 2012; Vol. 133; Pp. 64-71; Bibl. 3/4 p.</SO>
<LA>Anglais</LA>
<EA>This study examines the suitability of trunk dendrometers for assessing fruit growth under deficit irrigation (DI) for two consecutive years in a mature citrus orchard. Two DI programmes were applied during the maximum evapotranspirative demand period: sustained-deficit irrigation, applied at 50% ET<sub>c</sub>
on average, and low-frequency deficit irrigation, applied according to plant-water status, establishing different irrigation-restriction cycles. Additionally, a control treatment at 100% ET<sub>c</sub>
was monitored for the entire irrigation season. Trunk daily growth (TDG) and fruit daily growth (FDG) were estimated together with stem-water potential at midday (Ψ<sub>stem</sub>
) and the maximum daily shrinkage of the trunk (MDS). Significant relationships were determined for (Ψ<sub>stem</sub>
vs. TDG (R<sup>2</sup>
= 0.60), and vs. FDG (R<sup>2</sup>
= 0.78). In addition, significant relationships were established between TDG vs. FDG (R<sup>2</sup>
= 0.60), and between the daily increment of MDS (ΔMDS) and FDG (R<sup>2</sup>
= 0.50), revealing the strong connection between trunk and fruit variations caused by water stress. According to these findings, the DI effects on fruit growth can be monitored by means of TDF or temporal evolution of Ψ<sub>stem</sub>
, promising automation possibilities for appropriately regulating irrigation under DI programmes, and predicting its effects on fruit size by continuous field measurement.</EA>
<CC>002A32C03B</CC>
<FD>Fruit; Accroissement diamètre; Déficit hydrique; Irrigation; Dendrométrie; Tige; Potentiel hydrique; Stress hydrique; Horticulture; Citrus sinensis</FD>
<FG>Rutaceae; Dicotyledones; Angiospermae; Spermatophyta; Agrume</FG>
<ED>Fruit; Diameter increment; Water deficit; Irrigation; Forest mensuration; Stem; Water potential; Water stress; Horticulture; Citrus sinensis</ED>
<EG>Rutaceae; Dicotyledones; Angiospermae; Spermatophyta; Citrus fruit</EG>
<SD>Fruto; Aumento diámetro; Deficiencia agua; Irrigación; Dendrometría; Tallo; Potencial hídrico; Estrés hídrico; Horticultura; Citrus sinensis</SD>
<LO>INIST-16233.354000508491900110</LO>
<ID>12-0175988</ID>
</server>
</inist>
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