Abstract
Two-year-old Corsican pine (Pinus nigra ssp. laricio var. Corsicana) seedlings were either well watered or subjected to a moderate drought for one month before being lifted from the nursery bed on October 9 and transplanted. Well-watered, non-transplanted seedlings served as controls. Needle predawn water potential (Psi(wp)), non-structural carbohydrate concentrations and plant development (survival, bud break, shoot elongation) were assessed before and during the first growing season after transplanting. On April 16, just before bud break, Psi(wp) was lower for the well-watered + transplanted and drought-conditioned + transplanted seedlings (Psi(wp) = -1.45 and -1.83 MPa, respectively) than for the controls (Psi(wp) = -0.56). There was a close relationship between the Psi(wp) measured on April 16 and bud break, shoot elongation and plant survival during the following growing period. Above a Psi(wp) of -1.1 MPa, all plants developed normally. Between -1.1 MPa and -1.6 MPa, bud break, and thus shoot elongation, did not occur in all plants. Between -1.6 MPa and -2.1 MPa, the plants were characterized by the absence of shoot growth, but mortality was zero. Below -2.1 MPa, there was a large increase in plant mortality. On April 16, starch concentrations were markedly lower in the roots of transplanted seedlings than in the controls. There was a positive correlation between Psi(wp) and root starch concentration. The Psi(wp) (-2.3 MPa) at which complete starch depletion was observed in the roots corresponded to the Psi(wp) below which plants did not survive. These results suggest that mechanisms specifically linked to altered water status and metabolic processes associated with altered carbohydrate status are involved in transplanting stress; however, it was not possible to disentangle the two effects. Drought conditioning did not lead to a marked increase in soluble carbohydrate concentrations, as reported for other species, and did not increase plant tolerance to transplanting stress.
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 12
Claim · model-written summary
Transplanted seedlings had lower predawn water potential than non-transplanted controls on April 16.
- Taxon
- Corsican pine
Pinus nigra subsp. lariciot0 - Treatment
- transplantede0
- Outcome
- Psi(wp)e0
- Direction
- lowere0
- Value
- -1.45 and -1.83 MPae0
- Comparator
- controlse0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Psi(wp) was lower for the well-watered + transplanted and drought-conditioned + transplanted seedlings (Psi(wp) = -1.45 and -1.83 MPa, respectively) than for the controls (Psi(wp) = -0.56)”
t0“Corsican pine”
Claim · model-written summary
April 16 predawn water potential was closely related to subsequent bud break, shoot elongation and survival.
- Taxon
- Corsican pinePinus nigra subsp. lariciot0
- Organ / stage
- bud breake0
- Outcome
- bud break, shoot elongation and plant survivale0
- Qualifier
- Psi(wp) measured on April 16e0
Not reportedDirection
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“There was a close relationship between the Psi(wp) measured on April 16 and bud break, shoot elongation and plant survival during the following growing period.”
t0“Corsican pine”
Claim · model-written summary
All seedlings developed normally above a predawn water potential of -1.1 MPa.
- Taxon
- Corsican pinePinus nigra subsp. lariciot0
- Outcome
- all plants developed normallye0
- Qualifier
- Above a Psi(wp) of -1.1 MPae0
Not reportedDirection
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Above a Psi(wp) of -1.1 MPa, all plants developed normally.”
t0“Corsican pine”
Claim · model-written summary
At -1.1 to -1.6 MPa predawn water potential, bud break and shoot elongation did not occur in all seedlings.
- Taxon
- Corsican pinePinus nigra subsp. lariciot0
- Outcome
- bud break, and thus shoot elongation, did not occur in all plantse0
- Qualifier
- Between -1.1 MPa and -1.6 MPae0
Not reportedDirection
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Between -1.1 MPa and -1.6 MPa, bud break, and thus shoot elongation, did not occur in all plants.”
t0“Corsican pine”
Claim · model-written summary
At -1.6 to -2.1 MPa, seedlings lacked shoot growth but had zero mortality.
- Taxon
- Corsican pinePinus nigra subsp. lariciot0
- Outcome
- absence of shoot growth, but mortality was zeroe0
- Qualifier
- Between -1.6 MPa and -2.1 MPae0
Not reportedDirection
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Between -1.6 MPa and -2.1 MPa, the plants were characterized by the absence of shoot growth, but mortality was zero.”
t0“Corsican pine”
Claim · model-written summary
Seedling mortality increased substantially below -2.1 MPa predawn water potential.
- Taxon
- Corsican pinePinus nigra subsp. lariciot0
- Outcome
- plant mortalitye0
- Direction
- increasee0
- Qualifier
- Below -2.1 MPae0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Below -2.1 MPa, there was a large increase in plant mortality.”
t0“Corsican pine”
Claim · model-written summary
Root starch concentration was markedly lower in transplanted seedlings than controls on April 16.
- Taxon
- Corsican pinePinus nigra subsp. lariciot0
- Organ / stage
- rootse0
- Treatment
- transplanted seedlingse0
- Outcome
- starch concentrationse0
- Direction
- lowere0
- Comparator
- controlse0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“On April 16, starch concentrations were markedly lower in the roots of transplanted seedlings than in the controls.”
t0“Corsican pine”
Claim · model-written summary
Predawn water potential was positively correlated with root starch concentration.
- Taxon
- Corsican pinePinus nigra subsp. lariciot0
- Organ / stage
- roote0
- Outcome
- root starch concentratione0
- Qualifier
- positive correlation between Psi(wp) and root starch concentratione0
Not reportedDirection
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“There was a positive correlation between Psi(wp) and root starch concentration.”
t0“Corsican pine”
Claim · model-written summary
Complete root starch depletion occurred at -2.3 MPa, corresponding to the water potential below which seedlings did not survive.
- Taxon
- Corsican pinePinus nigra subsp. lariciot0
- Organ / stage
- rootse0
- Outcome
- complete starch depletione0
- Value
- -2.3 MPae0
- Qualifier
- below which plants did not survivee0
Not reportedDirection
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“The Psi(wp) (-2.3 MPa) at which complete starch depletion was observed in the roots corresponded to the Psi(wp) below which plants did not survive.”
t0“Corsican pine”
Claim · model-written summary
The authors suggest altered water status and carbohydrate metabolism both contribute to transplanting stress, but their effects could not be separated.
- Taxon
- Corsican pinePinus nigra subsp. lariciot0
- Outcome
- transplanting stresse0
- Qualifier
- altered water status and metabolic processes associated with altered carbohydrate statuse0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“mechanisms specifically linked to altered water status and metabolic processes associated with altered carbohydrate status are involved in transplanting stress; however, it was not possible to disentangle the two effects”
t0“Corsican pine”
Claim · model-written summary
Drought conditioning did not markedly increase soluble carbohydrate concentrations.
- Taxon
- Corsican pinePinus nigra subsp. lariciot0
- Treatment
- Drought conditioninge0
- Outcome
- soluble carbohydrate concentrationse0
- Direction
- did not lead to a marked increasee0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Drought conditioning did not lead to a marked increase in soluble carbohydrate concentrations”
t0“Corsican pine”
Claim · model-written summary
Drought conditioning did not increase tolerance to transplanting stress.
- Taxon
- Corsican pinePinus nigra subsp. lariciot0
- Treatment
- Drought conditioninge1
- Outcome
- plant tolerance to transplanting stresse0
- Direction
- did not increasee0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“did not increase plant tolerance to transplanting stress”
e1“Drought conditioning”
t0“Corsican pine”