Abstract
Cucumber plants were grown in a greenhouse at 18 or 25 degrees C with four intensities of fruit removal (1 fruit remaining for every 1, 3 or 6 leaf axils, or all fruits removed) or at three different levels of irradiance (shading with cheesecloth to give 100, 50 or 30% transmittance) in order to analyse the effects of fruit growth, temperature and irradiance on the dry matter allocation to leaves, stems, petioles and roots. With increasing irradiance, the dry weight of the vegetative part of the shoot increased, but the proportion of the total dry matter distributed to this part decreased. An increase in irradiance enhanced stem dry matter production less than leaf and petiole dry matter production which was in turn less stimulated than root dry matter production. In fruit-bearing plants, an increase in temperature had no effect on the dry matter allocation to the leaves, stems and petioles, but reduced the allocation to the roots. Fruit growth strongly reduced dry matter production of all vegetative plant parts, but the distribution between stems, leaves and petioles was only slightly affected. At 25 degrees, the dry matter distribution between the roots and the vegetative part of the shoot was not affected by fruit growth, but at 18 degrees, the root to vegetative shoot dry weight ratio decreased with increasing number of fruits on the plant. The biomass allocation between roots and shoot is discussed in relation to the functional equilibrium concept.
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 9
Claim · model-written summary
Increasing irradiance increased vegetative shoot dry weight.
- Taxon
- cucumber
Cucumis sativust0 - Treatment
- increasing irradiancee0
- Outcome
- dry weight of the vegetative part of the shoote0
- Direction
- increasede0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“With increasing irradiance, the dry weight of the vegetative part of the shoot increased”
t0“cucumber”
Claim · model-written summary
Increasing irradiance decreased the proportion of total dry matter allocated to vegetative shoot.
- Taxon
- cucumberCucumis sativust0
- Treatment
- increasing irradiancee1
- Outcome
- proportion of the total dry matter distributed to this parte0
- Direction
- decreasede0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“the proportion of the total dry matter distributed to this part decreased”
e1“With increasing irradiance”
t0“cucumber”
Claim · model-written summary
Irradiance stimulated stem dry matter production less than leaf and petiole production, and root production most.
- Taxon
- cucumberCucumis sativust0
- Treatment
- increase in irradiancee0
- Outcome
- dry matter productione0
- Direction
- enhancede0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“An increase in irradiance enhanced stem dry matter production less than leaf and petiole dry matter production which was in turn less stimulated than root dry matter production”
t0“cucumber”
Claim · model-written summary
Higher temperature did not affect dry matter allocation to leaves, stems and petioles in fruit-bearing plants.
- Taxon
- cucumberCucumis sativust0
- Treatment
- increase in temperaturee0
- Outcome
- dry matter allocation to the leaves, stems and petiolese0
- Direction
- no effecte0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“In fruit-bearing plants, an increase in temperature had no effect on the dry matter allocation to the leaves, stems and petioles”
t0“cucumber”
Claim · model-written summary
Higher temperature reduced dry matter allocation to roots in fruit-bearing plants.
- Taxon
- cucumberCucumis sativust0
- Treatment
- increase in temperaturee1
- Outcome
- allocation to the rootse0
- Direction
- reducede0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“but reduced the allocation to the roots”
e1“an increase in temperature”
t0“cucumber”
Claim · model-written summary
Fruit growth strongly reduced dry matter production of all vegetative parts.
- Taxon
- cucumberCucumis sativust0
- Treatment
- Fruit growthe0
- Outcome
- dry matter production of all vegetative plant partse0
- Direction
- reducede0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Fruit growth strongly reduced dry matter production of all vegetative plant parts”
t0“cucumber”
Claim · model-written summary
Fruit growth only slightly affected dry matter distribution among stems, leaves and petioles.
- Taxon
- cucumberCucumis sativust0
- Treatment
- Fruit growthe1
- Outcome
- distribution between stems, leaves and petiolese0
- Qualifier
- only slightly affectede0
Not reportedComparatorDirection
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“the distribution between stems, leaves and petioles was only slightly affected”
e1“Fruit growth strongly reduced”
t0“cucumber”
Claim · model-written summary
At 25 degrees, fruit growth did not affect root versus vegetative shoot allocation.
- Taxon
- cucumberCucumis sativust0
- Treatment
- fruit growthe0
- Outcome
- dry matter distribution between the roots and the vegetative part of the shoote0
- Direction
- not affectede0
- Qualifier
- At 25 degreese0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“At 25 degrees, the dry matter distribution between the roots and the vegetative part of the shoot was not affected by fruit growth”
t0“cucumber”
Claim · model-written summary
At 18 degrees, more fruits decreased the root to vegetative shoot dry weight ratio.
- Taxon
- cucumberCucumis sativust0
- Treatment
- increasing number of fruits on the plante0
- Outcome
- root to vegetative shoot dry weight ratioe0
- Direction
- decreasede0
- Qualifier
- at 18 degreese0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“at 18 degrees, the root to vegetative shoot dry weight ratio decreased with increasing number of fruits on the plant”
t0“cucumber”