Abstract
ABSTRACT Rice, a staple food crop for over half of the global population, is facing a serious threat of rising temperature due to climate change, especially in the areas producing Basmati rice. The main objectives of the study were to compare the promising cultivars of Basmati rice for heat stress tolerance and to assess how elevated temperature affects leaf physiological and morphological parameters of fine rice at seedling stage. A 2‐year‐controlled pot experiment was carried out to evaluate how different Basmati rice varieties respond to heat stress. The experiment was carried out at the Agronomic research area, University of Agriculture Faisalabad, Pakistan, during 2022 and 2023. The design of experiment was completely randomised design (CRD) with split treatment structure and four replications. Plant morphology, leaf temperature, chlorophyll contents, relative cell injury and relative water contents were evaluated for both experimental years. Heat stress significantly affected all morphological and physiological attributes such as chlorophyll contents, relative water contents and relative cell injury across different varieties. There was variation in the behaviour of different varieties under stress conditions as compared to no heat, but from the results it was very clear that Kisan Basmati and PK‐1121 Aromatic constantly showed poor performance under both conditions for all the recorded parameters. However, in almost each parameter evaluated, Basmati‐515, Super Basmati and NIAB‐16 exhibited Superior thermo tolerance and better performance. On the basis of observed morphological and physiological attributes, Kisan and PK‐1121 Aromatic Basmati were graded as sensitive varieties, while Basmati‐515, Super Basmati and NIAB‐16 showed tolerance to heat stress as compared to other varieties. However, further research is needed to explore the underlying mechanisms and genetic factors contributing to the sensitivity or tolerance observed in these varieties.
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Claims 8
Claim · model-written summary
Heat stress significantly affected chlorophyll content, relative water content and relative cell injury in Basmati rice at the seedling stage compared with no heat.
- Taxon
- Basmati Rice (Oryza sativa L.)
Oryza sativat0 - Organ / stage
- fine rice at seedling stagee1
- Treatment
- Heat stresse0
- Outcome
- chlorophyll contents, relative water contents and relative cell injurye0
- Comparator
- no heate3
- Setting
- Agronomic research area, University of Agriculture Faisalabad, Pakistane2
Not reportedDirection
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“Evaluation of Basmati Rice (Oryza sativa L.) Genotypes”
e0“Heat stress significantly affected all morphological and physiological attributes such as chlorophyll contents, relative water contents and relative cell injury across different varieties”
e1“parameters of fine rice at seedling stage”
e2“at the Agronomic research area, University of Agriculture Faisalabad, Pakistan”
e3“as compared to no heat”
Claim · model-written summary
Kisan Basmati showed poor performance under both heat and no-heat conditions for all recorded parameters.
- Taxon
- Basmati Rice (Oryza sativa L.)Oryza sativat0
- Material
- Kisan Basmatie4
- Outcome
- poor performancee4
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“Evaluation of Basmati Rice (Oryza sativa L.) Genotypes”
e4“Kisan Basmati and PK‐1121 Aromatic constantly showed poor performance under both conditions for all the recorded parameters”
Claim · model-written summary
PK‐1121 Aromatic showed poor performance under both heat and no-heat conditions for all recorded parameters.
- Taxon
- Basmati Rice (Oryza sativa L.)Oryza sativat0
- Material
- PK‐1121 Aromatice4
- Outcome
- poor performancee4
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“Evaluation of Basmati Rice (Oryza sativa L.) Genotypes”
e4“Kisan Basmati and PK‐1121 Aromatic constantly showed poor performance under both conditions for all the recorded parameters”
Claim · model-written summary
Basmati‑515 exhibited superior thermotolerance and better performance under heat stress.
- Taxon
- Basmati Rice (Oryza sativa L.)Oryza sativat0
- Material
- Basmati‑515e5
- Outcome
- thermo tolerancee5
- Direction
- Superiore5
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“Evaluation of Basmati Rice (Oryza sativa L.) Genotypes”
e5“Basmati‑515, Super Basmati and NIAB‐16 exhibited Superior thermo tolerance and better performance”
Claim · model-written summary
Super Basmati exhibited superior thermotolerance and better performance under heat stress.
- Taxon
- Basmati Rice (Oryza sativa L.)Oryza sativat0
- Material
- Super Basmatie5
- Outcome
- thermo tolerancee5
- Direction
- Superiore5
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“Evaluation of Basmati Rice (Oryza sativa L.) Genotypes”
e5“Basmati‑515, Super Basmati and NIAB‐16 exhibited Superior thermo tolerance and better performance”
Claim · model-written summary
NIAB‐16 exhibited superior thermotolerance and better performance under heat stress.
- Taxon
- Basmati Rice (Oryza sativa L.)Oryza sativat0
- Material
- NIAB‐16e5
- Outcome
- thermo tolerancee5
- Direction
- Superiore5
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“Evaluation of Basmati Rice (Oryza sativa L.) Genotypes”
e5“Basmati‑515, Super Basmati and NIAB‐16 exhibited Superior thermo tolerance and better performance”
Claim · model-written summary
Kisan Basmati was graded as a sensitive variety.
- Taxon
- Basmati Rice (Oryza sativa L.)Oryza sativat0
- Material
- Kisane6
- Outcome
- sensitive varietiese6
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“Evaluation of Basmati Rice (Oryza sativa L.) Genotypes”
e6“Kisan and PK‐1121 Aromatic Basmati were graded as sensitive varieties”
Claim · model-written summary
PK‐1121 Aromatic was graded as a sensitive variety.
- Taxon
- Basmati Rice (Oryza sativa L.)Oryza sativat0
- Material
- PK‐1121 Aromatice6
- Outcome
- sensitive varietiese6
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“Evaluation of Basmati Rice (Oryza sativa L.) Genotypes”
e6“Kisan and PK‐1121 Aromatic Basmati were graded as sensitive varieties”
The same questions in other papers
heat · physiology: pigments · Oryza sativa (rice)Results differ
12 papers in the same direction as this paper · 5 in the opposite direction
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