Abstract
Abstract Rice performance under drought stress is mainly impeded by oxidative damage and hampered plant water status, which may be improved by exogenous use of osmoprotectants. In this study, the role of glycinebetaine (GB) to improve drought tolerance in rice ( Oryza sativa L.) cultivar Super‐basmati was evaluated. GB was used both as seed and foliar application. For priming, seeds were soaked in 50, 100 and 150 mg l −1 aerated solution of GB for 48 h. At four‐leaf stage, one set of plants was subjected to drought stress, while the other set kept at full field capacity. Drought was maintained at 50 % of field capacity by watering when needed. For exogenous application, 50, 100 and 150 mg l −1 GB levels were applied at five‐leaf stage. Drought stress greatly reduced the rice growth while GB application improved it both under well‐watered and drought conditions. Drought tolerance in rice was strongly related to the maintenance of tissue water potential and antioxidant system, which improved the integrity of cellular membranes and enabled the plant to maintain high photosynthesis. Foliar treatments were more effective than the seed treatments, while among the GB treatment, foliar application with 100 mg l −1 was the most effective.
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 6
Claim · model-written summary
Drought stress greatly reduced rice growth.
- Taxon
- rice
Oryza sativae0 - Treatment
- Drought stresse0
- Outcome
- rice growthe0
- Direction
- reducede0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Drought stress greatly reduced the rice growth”
Claim · model-written summary
Glycinebetaine application improved rice growth under well-watered and drought conditions.
- Taxon
- riceOryza sativat0
- Treatment
- GB applicatione0
- Outcome
- growthe1
- Direction
- improvede0
- Qualifier
- well‐watered and drought conditionse0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“GB application improved it both under well‐watered and drought conditions”
e1“rice growth”
t0“Rice (Oryza sativa L.)”
Claim · model-written summary
Rice drought tolerance was strongly related to maintenance of tissue water potential and antioxidant system.
- Taxon
- riceOryza sativae0
- Organ / stage
- tissuee0
- Outcome
- Drought tolerancee0
- Qualifier
- maintenance of tissue water potential and antioxidant systeme0
Not reportedDirection
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Drought tolerance in rice was strongly related to the maintenance of tissue water potential and antioxidant system”
Claim · model-written summary
Maintained water potential and antioxidant system improved membrane integrity and enabled high photosynthesis.
- Taxon
- riceOryza sativat0
- Outcome
- integrity of cellular membranes and enabled the plant to maintain high photosynthesise0
- Qualifier
- maintenance of tissue water potential and antioxidant systeme1
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“which improved the integrity of cellular membranes and enabled the plant to maintain high photosynthesis”
e1“maintenance of tissue water potential and antioxidant system”
t0“Rice (Oryza sativa L.)”
Claim · model-written summary
Foliar treatments were more effective than seed treatments.
- Taxon
- riceOryza sativat0
- Treatment
- Foliar treatmentse0
- Outcome
- more effectivee0
- Direction
- more effectivee0
- Comparator
- seed treatmentse0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Foliar treatments were more effective than the seed treatments”
t0“Rice (Oryza sativa L.)”
Claim · model-written summary
Foliar glycinebetaine at 100 mg l −1 was the most effective treatment.
- Taxon
- riceOryza sativat0
- Treatment
- foliar application with 100 mg l −1e0
- Outcome
- most effectivee0
- Direction
- most effectivee0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“foliar application with 100 mg l −1 was the most effective”
t0“Rice (Oryza sativa L.)”
The same questions in other papers
glycine betaine · growth · Oryza sativa (rice)Positive and negative results
7 papers in the same direction as this paper · 4 in the opposite direction
- negative
- no effect
- no effect
8 papers more in this group
See all 12 papers →drought · growth · Oryza sativa (rice)Positive and negative results
183 papers in the same direction as this paper · 98 in the opposite direction
- negative
- negative
- positive
278 papers more in this group
See all 282 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.