Abstract
Seasonal patterns of soil water content and diurnal leaf water potential (LWP), stomatal conductance(g s ), and net CO 2 assimilation (A) were determined in a high-density peach [ Prunus persica (L) Batsch cv. Cal Red] subjected to regulated deficit irrigation scheduling. The regulated deficit irrigation treatment caused clear differences in soil water content and predawn LWP relative to control irrigation treatments. Treatment differences in midday LWP, g s , and A were also significant, but not as distinct as differences in predawn LWP. Leaves on trees subject of the deficit irrigation treatment were photosynthetically more water-use-efficient during the latter part of the stress period than were the nonstressed trees. Midday LWP and g s , on trees that received the regulated deficit irrigation treatment did not recover to control treatment values until more than 3 weeks after full irrigation was resumed at the beginning of state III of fruit growth, because of water infiltration problems in the dry soil caused by the deficit irrigation. The regulated deficit irrigation treatment caused only a 8% reduction in trunk growth relative to the control, but resulted in a 40% savings in irrigation requirements.
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Claims 7
Claim · model-written summary
Deficit irrigation changed soil water content relative to controls.
- Taxon
- Peach
Prunus persicat0 - Treatment
- regulated deficit irrigation treatmente0
- Outcome
- soil water contente0
- Comparator
- control irrigation treatmentse0
Not reportedDirection
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“The regulated deficit irrigation treatment caused clear differences in soil water content and predawn LWP relative to control irrigation treatments.”
t0“in Peach”
Claim · model-written summary
Deficit irrigation changed predawn leaf water potential relative to controls.
- Taxon
- PeachPrunus persicat0
- Treatment
- regulated deficit irrigation treatmente0
- Outcome
- predawn LWPe0
- Comparator
- control irrigation treatmentse0
Not reportedDirection
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“The regulated deficit irrigation treatment caused clear differences in soil water content and predawn LWP relative to control irrigation treatments.”
t0“in Peach”
Claim · model-written summary
Deficit irrigation significantly changed midday leaf water potential, stomatal conductance and net assimilation, though less distinctly than predawn potential.
- Taxon
- PeachPrunus persicat0
- Treatment
- Treatmente0
- Outcome
- midday LWP, g s , and Ae0
Not reportedComparatorDirection
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Treatment differences in midday LWP, g s , and A were also significant, but not as distinct as differences in predawn LWP.”
t0“in Peach”
Claim · model-written summary
Leaves under deficit irrigation had greater photosynthetic water-use efficiency late in the stress period.
- Taxon
- PeachPrunus persicat0
- Treatment
- deficit irrigation treatmente0
- Outcome
- photosynthetically more water-use-efficiente0
- Direction
- more water-use-efficiente0
- Qualifier
- during the latter part of the stress periode0
- Comparator
- nonstressed treese0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Leaves on trees subject of the deficit irrigation treatment were photosynthetically more water-use-efficient during the latter part of the stress period than were the nonstressed trees.”
t0“in Peach”
Claim · model-written summary
Midday leaf water potential and stomatal conductance did not recover to control values for more than three weeks after full irrigation resumed.
- Taxon
- PeachPrunus persicat0
- Treatment
- regulated deficit irrigation treatmente0
- Outcome
- Midday LWP and g se0
- Direction
- did not recovere0
- Value
- more than 3 weekse0
- Qualifier
- water infiltration problems in the dry soile0
- Comparator
- control treatment valuese0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Midday LWP and g s , on trees that received the regulated deficit irrigation treatment did not recover to control treatment values until more than 3 weeks after full irrigation was resumed at the beginning of state III of fruit growth, because of water infiltration problems in the dry soil caused by the deficit irrigation.”
t0“in Peach”
Claim · model-written summary
Deficit irrigation reduced trunk growth by 8% relative to controls.
- Taxon
- PeachPrunus persicat0
- Treatment
- regulated deficit irrigation treatmente0
- Outcome
- trunk growthe0
- Direction
- reductione0
- Value
- 8%e0
- Comparator
- the controle0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“The regulated deficit irrigation treatment caused only a 8% reduction in trunk growth relative to the control, but resulted in a 40% savings in irrigation requirements.”
t0“in Peach”
Claim · model-written summary
Deficit irrigation saved 40% of irrigation requirements.
- Taxon
- PeachPrunus persicat0
- Treatment
- regulated deficit irrigation treatmente0
- Outcome
- irrigation requirementse0
- Direction
- savingse0
- Value
- 40%e0
- Comparator
- the controle0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“The regulated deficit irrigation treatment caused only a 8% reduction in trunk growth relative to the control, but resulted in a 40% savings in irrigation requirements.”
t0“in Peach”
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See all 43 papers →Claims are grouped by organism, treatment and what was measured or targeted. A paper counts as positive when any of its claims in the group is positive.