Abstract
Split-root plants, where the root system was divided between two containers, were used to study the effect of partial drying of the root system on shoot growth and gas exchange of Shiraz (syn. Syrah) (Vitis vinifera), Kober 5 BB (Vitis berlandieri x Vitis riparia) and 110 Richter (Vitis berlandieri x Vitis rupestris). The initial decrease in both shoot growth rate and gas exchange in response to half-drying coincided with the decrease in soil water content of the dried half of the root system. Recovery of shoot function of half-dried grapevines occurred without rewatering of the dried half of the root system, and commenced when there was no further decrease in soil water content. There was no effect of half-drying on leaf water potential at the times of greatest inhibition of shoot growth rate and stomatal conductance relative to control; this suggests the involvement of a non-hydraulic signal originating from the roots in drying soil. Changes in stomatal conductance in response to half-drying were strongly correlated with shoot growth rate.
Abstract from the paper’s OpenAlex record, shown for indexing and research. Copyright remains with the authors or the publisher. Read at the source ↗
The text the model read, with the source record’s inline markup (italics, sub- and superscripts) rendered and its character entities decoded; quote offsets refer to the raw text.
Claims 5
Claim · model-written summary
Half-drying of the root system initially decreased shoot growth rate and gas exchange relative to control.
- Taxon
- Vitis vinifera
Vitis viniferae1 - Material
- Shiraze1
- Treatment
- half-dryinge2
- Outcome
- shoot growth rate and gas exchangee2
- Direction
- decreasee2
- Comparator
- controle3
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e1“Split-root plants, where the root system was divided between two containers, were used to study the effect of partial drying of the root system on shoot growth and gas exchange of Shiraz (syn. Syrah) (Vitis vinifera), Kober 5 BB (Vitis berlandieri x Vitis riparia) and 110 Richter (Vitis berlandieri x Vitis rupestris)”
e2“The initial decrease in both shoot growth rate and gas exchange in response to half-drying coincided with the decrease in soil water content of the dried half of the root system”
e3“There was no effect of half-drying on leaf water potential at the times of greatest inhibition of shoot growth rate and stomatal conductance relative to control; this suggests the involvement of a non-hydraulic signal originating from the roots in drying soil”
Claim · model-written summary
Shoot function of half-dried grapevines recovered without rewatering, once soil water content stopped decreasing.
- Taxon
- Vitis viniferaVitis viniferae1
- Outcome
- recovery of shoot functione4
- Qualifier
- without rewatering of the dried half of the root systeme4
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e1“Split-root plants, where the root system was divided between two containers, were used to study the effect of partial drying of the root system on shoot growth and gas exchange of Shiraz (syn. Syrah) (Vitis vinifera), Kober 5 BB (Vitis berlandieri x Vitis riparia) and 110 Richter (Vitis berlandieri x Vitis rupestris)”
e4“Recovery of shoot function of half-dried grapevines occurred without rewatering of the dried half of the root system, and commenced when there was no further decrease in soil water content”
Claim · model-written summary
Half-drying had no effect on leaf water potential at the times of greatest inhibition of shoot growth and stomatal conductance.
- Taxon
- Vitis viniferaVitis viniferae1
- Treatment
- half-dryinge3
- Outcome
- leaf water potentiale3
- Direction
- no_changeinferrede3
- Comparator
- controle3
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e1“Split-root plants, where the root system was divided between two containers, were used to study the effect of partial drying of the root system on shoot growth and gas exchange of Shiraz (syn. Syrah) (Vitis vinifera), Kober 5 BB (Vitis berlandieri x Vitis riparia) and 110 Richter (Vitis berlandieri x Vitis rupestris)”
e3“There was no effect of half-drying on leaf water potential at the times of greatest inhibition of shoot growth rate and stomatal conductance relative to control; this suggests the involvement of a non-hydraulic signal originating from the roots in drying soil”
Claim · model-written summary
Changes in stomatal conductance under half-drying were strongly correlated with shoot growth rate.
- Taxon
- Vitis viniferaVitis viniferae1
- Treatment
- half-dryinge5
- Outcome
- stomatal conductancee5
- Qualifier
- strongly correlated with shoot growth ratee5
Not reportedDirection
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e1“Split-root plants, where the root system was divided between two containers, were used to study the effect of partial drying of the root system on shoot growth and gas exchange of Shiraz (syn. Syrah) (Vitis vinifera), Kober 5 BB (Vitis berlandieri x Vitis riparia) and 110 Richter (Vitis berlandieri x Vitis rupestris)”
e5“Changes in stomatal conductance in response to half-drying were strongly correlated with shoot growth rate”
Claim · model-written summary
A non-hydraulic signal from the roots in drying soil may explain the shoot growth and stomatal response to half-drying.
- Taxon
- Vitis viniferaVitis viniferae1
- Outcome
- shoot growth rate and stomatal conductancee3
- Qualifier
- non-hydraulic signal originating from the roots in drying soile3
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e1“Split-root plants, where the root system was divided between two containers, were used to study the effect of partial drying of the root system on shoot growth and gas exchange of Shiraz (syn. Syrah) (Vitis vinifera), Kober 5 BB (Vitis berlandieri x Vitis riparia) and 110 Richter (Vitis berlandieri x Vitis rupestris)”
e3“There was no effect of half-drying on leaf water potential at the times of greatest inhibition of shoot growth rate and stomatal conductance relative to control; this suggests the involvement of a non-hydraulic signal originating from the roots in drying soil”