Abstract
Grapevine under arid and semi-arid are subjected to low soil water availability, accompanied by high levels of temperature and severe transpiration in the summer period. In spite of their deep root system, severe water stress may occur during that period. Therefore, study of morphological and physiological responses of grapevine cultivars to water stress, especially during the different phenological stages, are necessary. The effect of water deficit stress on morphological and physiological responses of four Iranian grapevine cultivars ( Vitis vinifera L. cvs. Bidaneh Sephid, Yaghooti Shiraz, Khoshnav, and Siaveh) were studied. This investigation was conducted as a factorial experiment in a complete randomized block design with four replications. In this study, 1-year-old own rooted vines were planted outdoor in plastic bags. Water stress was begun 115 days after bud break and contained for 2 months. Some vegetative and biochemical characters of leaves were evaluated; photosynthesis and gas exchange was measured. The results of analysis of variance indicated that water deficit stress decreased total dry weight, root dry weight, leaf area, non soluble carbohydrate concentration, and chlorophyll content. The reduction of leaf area in `Yaghooti Shiraz' and total dry weight and root dry weight in `Bidaneh Sephid' were higher than two other cultivars. Under water deficit stress condition, the soluble carbohydrate concentration and proline content in grapevine cultivars increased. Net photosynthesis and gas exchange rate were markedly reduced in water deficit stressed vines.
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Claims 6
Claim · model-written summary
Water deficit decreased total dry weight, root dry weight, and leaf area.
- Treatment
- water deficit stresse0
- Outcome
- total dry weight, root dry weight, leaf areae0
- Direction
- decreasede0
VitisNot reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“water deficit stress decreased total dry weight, root dry weight, leaf area, non soluble carbohydrate concentration, and chlorophyll content”
e1“grapevine cultivars ( Vitis vinifera L. cvs. Bidaneh Sephid, Yaghooti Shiraz, Khoshnav, and Siaveh)”
Claim · model-written summary
Water deficit decreased non soluble carbohydrate concentration and chlorophyll content.
- Treatment
- water deficit stresse0
- Outcome
- non soluble carbohydrate concentration, and chlorophyll contente0
- Direction
- decreasede0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“water deficit stress decreased total dry weight, root dry weight, leaf area, non soluble carbohydrate concentration, and chlorophyll content”
e1“grapevine cultivars ( Vitis vinifera L. cvs. Bidaneh Sephid, Yaghooti Shiraz, Khoshnav, and Siaveh)”
Claim · model-written summary
Yaghooti Shiraz had a greater reduction in leaf area than two other cultivars.
- Material
- Yaghooti Shiraze0
- Outcome
- reduction of leaf areae0
- Direction
- highere0
- Comparator
- two other cultivarse0
Not reportedTreatment
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“The reduction of leaf area in `Yaghooti Shiraz' and total dry weight and root dry weight in `Bidaneh Sephid' were higher than two other cultivars”
e1“grapevine cultivars ( Vitis vinifera L. cvs. Bidaneh Sephid, Yaghooti Shiraz, Khoshnav, and Siaveh)”
Claim · model-written summary
Bidaneh Sephid had greater dry-weight reductions than two other cultivars.
- Material
- Bidaneh Sephide0
- Outcome
- total dry weight and root dry weighte0
- Direction
- highere0
- Comparator
- two other cultivarse0
Not reportedTreatment
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“The reduction of leaf area in `Yaghooti Shiraz' and total dry weight and root dry weight in `Bidaneh Sephid' were higher than two other cultivars”
e1“grapevine cultivars ( Vitis vinifera L. cvs. Bidaneh Sephid, Yaghooti Shiraz, Khoshnav, and Siaveh)”
Claim · model-written summary
Under water deficit, soluble carbohydrate concentration and proline content increased.
- Treatment
- water deficit stress conditione0
- Outcome
- soluble carbohydrate concentration and proline contente0
- Direction
- increasede0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Under water deficit stress condition, the soluble carbohydrate concentration and proline content in grapevine cultivars increased”
Claim · model-written summary
Water deficit markedly reduced net photosynthesis and gas exchange rate.
- Treatment
- water deficit stressede0
- Outcome
- Net photosynthesis and gas exchange ratee0
- Direction
- reducede0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Net photosynthesis and gas exchange rate were markedly reduced in water deficit stressed vines”
e1“grapevine cultivars ( Vitis vinifera L. cvs. Bidaneh Sephid, Yaghooti Shiraz, Khoshnav, and Siaveh)”
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