Abstract
Two sunflower lines, namely, Gulshan-98 (dwarf) and Suncross (tall) were subjected to water stress environment at the vegetative or reproductive growth stage. Three levels (0, 50 and 100 mM) of glycinebetaine (GB) were applied before sowing (seed treatments) or at the start of water deficit treatments (foliar application) at the vegetative or reproductive growth stage. Water stress significantly decreased leaf water contents, osmotic and turgor potentials in both sunflower lines. Pre-treatment of seeds with both levels of GB did not affect above mentioned water relation parameters under both control (normal irrigation) and water stress environments. Foliar application of GB at the vegetative or reproductive growth stage, however, increased leaf water and turgor potentials to some extent in both sunflower lines when grown under water stress. The leaf osmotic potential was not affected by exogenous supply of GB at either growth stage. However, water stress induced decline in achene yield/plant was significantly reduced by the foliar application of GB. Foliar spray of 100 mM GB was found to be more beneficial in preventing the effects of water stress on above mentioned attributes as compared with 50 mM GB.
Abstract from the paper’s OpenAlex record; open copy licensed cc-by. 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 8
Claim · model-written summary
Water stress significantly decreased leaf water contents in both sunflower lines.
- Taxon
- sunflower
Helianthus annuuse0 - Treatment
- Water stresse0
- Outcome
- leaf water contentse0
- Direction
- decreasede0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Water stress significantly decreased leaf water contents, osmotic and turgor potentials in both sunflower lines.”
Claim · model-written summary
Water stress significantly decreased osmotic in both sunflower lines.
- Taxon
- sunflowerHelianthus annuuse0
- Treatment
- Water stresse0
- Outcome
- osmotice0
- Direction
- decreasede0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Water stress significantly decreased leaf water contents, osmotic and turgor potentials in both sunflower lines.”
Claim · model-written summary
Water stress significantly decreased turgor potentials in both sunflower lines.
- Taxon
- sunflowerHelianthus annuuse0
- Treatment
- Water stresse0
- Outcome
- turgor potentialse0
- Direction
- decreasede0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Water stress significantly decreased leaf water contents, osmotic and turgor potentials in both sunflower lines.”
Claim · model-written summary
Seed pretreatment with both GB levels did not affect water relation parameters under control or water stress.
- Taxon
- sunflowerHelianthus annuust0
- Treatment
- Pre-treatment of seeds with both levels of GBe0
- Outcome
- water relation parameterse0
- Direction
- did not affecte0
- Comparator
- control (normal irrigation)e0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Pre-treatment of seeds with both levels of GB did not affect above mentioned water relation parameters under both control (normal irrigation) and water stress environments.”
t0“sunflower”
Claim · model-written summary
Foliar GB increased leaf water and turgor potentials to some extent during water stress.
- Taxon
- sunflowerHelianthus annuust0
- Treatment
- Foliar application of GBe0
- Outcome
- leaf water and turgor potentialse0
- Direction
- increasede0
- Qualifier
- when grown under water stresse0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Foliar application of GB at the vegetative or reproductive growth stage, however, increased leaf water and turgor potentials to some extent in both sunflower lines when grown under water stress.”
t0“sunflower”
Claim · model-written summary
Exogenous GB did not affect leaf osmotic potential at either growth stage.
- Taxon
- sunflowerHelianthus annuust0
- Treatment
- exogenous supply of GBe0
- Outcome
- leaf osmotic potentiale0
- Direction
- not affectede0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“The leaf osmotic potential was not affected by exogenous supply of GB at either growth stage.”
t0“sunflower”
Claim · model-written summary
Foliar GB significantly reduced the water stress induced decline in achene yield per plant.
- Taxon
- sunflowerHelianthus annuust0
- Treatment
- foliar application of GBe0
- Outcome
- achene yield/plante0
- Direction
- reducede0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“water stress induced decline in achene yield/plant was significantly reduced by the foliar application of GB.”
t0“sunflower”
Claim · model-written summary
A 100 mM GB foliar spray prevented water stress effects more than 50 mM GB.
- Taxon
- sunflowerHelianthus annuust0
- Treatment
- Foliar spray of 100 mM GBe0
- Outcome
- more beneficiale0
- Direction
- more beneficiale0
- Comparator
- 50 mM GBe0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Foliar spray of 100 mM GB was found to be more beneficial in preventing the effects of water stress on above mentioned attributes as compared with 50 mM GB.”
t0“sunflower”
The same questions in other papers
glycine betaine · yield · Helianthus annuus (common sunflower)Results agree
1 paper in the same direction as this paper
- positive
glycine betaine · physiology: water · Helianthus annuus (common sunflower)Results agree
2 papers in the same direction as this paper
- positive
- positive
drought · physiology: water · Helianthus annuus (common sunflower)Results differ
20 papers in the same direction as this paper · 8 in the opposite direction
- positive
- positive
- positive
25 papers more in this group
See all 29 papers →application · yield · Helianthus annuus (common sunflower)Positive and negative results
151 papers in the same direction as this paper · 5 in the opposite direction · 1 reporting no difference from an alternative
- no effect
- no effect
- negative
154 papers more in this group
See all 158 papers →application · physiology: water · Helianthus annuus (common sunflower)Results agree
11 papers in the same direction as this paper
- positive
- positive
- positive
8 papers more in this group
See all 12 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.