Effect of water deficit in different growth stages on stem sap flux of greenhouse grown pear-jujube tree

Fusheng Ma; Shaozhong Kang; Fusheng Li; Jianhua Zhang; Taisheng Du; Xiaotao Hu; Mixia Wang

doi:10.1016/j.agwat.2006.12.009

Effect of water deficit in different growth stages on stem sap flux of greenhouse grown pear-jujube tree

Fusheng Ma, Shaozhong Kang^*, Fusheng Li, Jianhua Zhang, Taisheng Du, Xiaotao Hu, Mixia Wang

^*Corresponding author for this work

Department of Biology

Research output: Contribution to journal › Journal article › peer-review

37 Citations (Scopus)

Abstract

The effects of water deficit in different fruit growth stages on the variation of stem sap flux of 6-year old greenhouse-grown pear-jujube trees were investigated. Treatments included sufficient water supply during the whole fruit-growing period (T₁), mild water deficit during the flowering-fruit setting stage (T₂), moderate water deficit during the fruit rapid growth stage (T₃) and severe water deficit during the fruit maturing stage (T₄). Results showed that significant compensation effect on stem sap flux after re-watering was observed in T₂, but not in T₃ and T₄ stages. At the end of rapid growth stage, the diurnal variation of stomatal conductance generally had a similar trend as that of stem sap flux, but with a distinct midday depression from 12:00 to 14:00 p.m. In addition, a linear relationship between the relative available soil water content (RAWC) and the ratio of daily stem sap flux to that of sufficient water treatment was observed (R² = 0.4489).

Original language	English
Pages (from-to)	190-196
Number of pages	7
Journal	Agricultural Water Management
Volume	90
Issue number	3
DOIs	https://doi.org/10.1016/j.agwat.2006.12.009
Publication status	Published - 16 Jun 2007

Scopus Subject Areas

Agronomy and Crop Science
Water Science and Technology
Soil Science
Earth-Surface Processes

User-Defined Keywords

Pear-jujube
Soil water content
Stem sap flux
Stomatal conductance
Transpiration
Water deficit

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10.1016/j.agwat.2006.12.009

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title = "Effect of water deficit in different growth stages on stem sap flux of greenhouse grown pear-jujube tree",

abstract = "The effects of water deficit in different fruit growth stages on the variation of stem sap flux of 6-year old greenhouse-grown pear-jujube trees were investigated. Treatments included sufficient water supply during the whole fruit-growing period (T1), mild water deficit during the flowering-fruit setting stage (T2), moderate water deficit during the fruit rapid growth stage (T3) and severe water deficit during the fruit maturing stage (T4). Results showed that significant compensation effect on stem sap flux after re-watering was observed in T2, but not in T3 and T4 stages. At the end of rapid growth stage, the diurnal variation of stomatal conductance generally had a similar trend as that of stem sap flux, but with a distinct midday depression from 12:00 to 14:00 p.m. In addition, a linear relationship between the relative available soil water content (RAWC) and the ratio of daily stem sap flux to that of sufficient water treatment was observed (R2 = 0.4489).",

keywords = "Pear-jujube, Soil water content, Stem sap flux, Stomatal conductance, Transpiration, Water deficit",

author = "Fusheng Ma and Shaozhong Kang and Fusheng Li and Jianhua Zhang and Taisheng Du and Xiaotao Hu and Mixia Wang",

note = "Funding Information: We are grateful to the support by the project 2006CB403406 and Chinese National Science Fund (50339030, 50679081), and Hong Kong Research Grants Council (HKBU 2149/04M and HKBU 2465/05M) and Hong Kong University Grants Committee (AOE/B-07/99). ",

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AU - Ma, Fusheng

AU - Kang, Shaozhong

AU - Li, Fusheng

AU - Zhang, Jianhua

AU - Du, Taisheng

AU - Hu, Xiaotao

AU - Wang, Mixia

N1 - Funding Information: We are grateful to the support by the project 2006CB403406 and Chinese National Science Fund (50339030, 50679081), and Hong Kong Research Grants Council (HKBU 2149/04M and HKBU 2465/05M) and Hong Kong University Grants Committee (AOE/B-07/99).

PY - 2007/6/16

Y1 - 2007/6/16

N2 - The effects of water deficit in different fruit growth stages on the variation of stem sap flux of 6-year old greenhouse-grown pear-jujube trees were investigated. Treatments included sufficient water supply during the whole fruit-growing period (T1), mild water deficit during the flowering-fruit setting stage (T2), moderate water deficit during the fruit rapid growth stage (T3) and severe water deficit during the fruit maturing stage (T4). Results showed that significant compensation effect on stem sap flux after re-watering was observed in T2, but not in T3 and T4 stages. At the end of rapid growth stage, the diurnal variation of stomatal conductance generally had a similar trend as that of stem sap flux, but with a distinct midday depression from 12:00 to 14:00 p.m. In addition, a linear relationship between the relative available soil water content (RAWC) and the ratio of daily stem sap flux to that of sufficient water treatment was observed (R2 = 0.4489).

AB - The effects of water deficit in different fruit growth stages on the variation of stem sap flux of 6-year old greenhouse-grown pear-jujube trees were investigated. Treatments included sufficient water supply during the whole fruit-growing period (T1), mild water deficit during the flowering-fruit setting stage (T2), moderate water deficit during the fruit rapid growth stage (T3) and severe water deficit during the fruit maturing stage (T4). Results showed that significant compensation effect on stem sap flux after re-watering was observed in T2, but not in T3 and T4 stages. At the end of rapid growth stage, the diurnal variation of stomatal conductance generally had a similar trend as that of stem sap flux, but with a distinct midday depression from 12:00 to 14:00 p.m. In addition, a linear relationship between the relative available soil water content (RAWC) and the ratio of daily stem sap flux to that of sufficient water treatment was observed (R2 = 0.4489).

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KW - Water deficit

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Effect of water deficit in different growth stages on stem sap flux of greenhouse grown pear-jujube tree

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