Abstract
Drought is one of the major abiotic stress responsible for yield reduction of crops worldwide. Kinetin (KIN) and glycine betain (GB) have an essential role in regulating cell division during the early phase of grain setting; assimilate flow and osmotic adjustment under drought stress. Effects of exogenously applied kinetin and glycine betain on some metabolic and yield attributes of two rice (Oryza sativa L.) cultivars viz., Basmati-385 and KS-282 were evaluated under water stress. KIN and GB were applied by spraying the plants at flowering stage before drought stress treatment. Both treatments significantly increased proline concentration in leaves and panicles of both the rice cultivars as compared to their control. They also increased soluble sugar in the leaves and panicles under water stress. Starch concentration in leaves and panicles of both the rice cultivars were increased significantly (p<0.05) by KIN and GB spray. However, the magnitude of increase of the starch in panicles was more pronounced in cv. Basmatti-385 than cv. KS-282. Under the applied water stress both KIN and GB spray significantly increased paddy yield in both the rice cultivars. Both KIN and GB spray significantly increased the number of seeds per panicle in both the rice cultivars. The quantitative increase in paddy yield and seed number was greater in cv. Basmatti-385 as compared to cv. KS-282. Exogenous application of KIN at flowering stage could be used as an effective treatment to mimic the adverse effects of water stress in fine rice cultivars.
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Claims 8
Claim · model-written summary
Kinetin and glycine betain increased leaf and panicle proline in both cultivars.
- Taxon
- rice
Oryza sativat0 - Organ / stage
- leaves and paniclese0
- Treatment
- Both treatmentse0
- Outcome
- proline concentratione0
- Direction
- increasede0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“rice”
e0“Both treatments significantly increased proline concentration in leaves and panicles of both the rice cultivars as compared to their control.”
Claim · model-written summary
Kinetin and glycine betain increased soluble sugars in leaves and panicles under water stress.
- Taxon
- riceOryza sativat0
- Organ / stage
- leaves and paniclese0
- Treatment
- Theye0
- Outcome
- soluble sugare0
- Direction
- increasede0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“rice”
e0“They also increased soluble sugar in the leaves and panicles under water stress.”
Claim · model-written summary
Kinetin and glycine betain increased starch in leaves and panicles of both cultivars.
- Taxon
- riceOryza sativat0
- Organ / stage
- leaves and paniclese0
- Treatment
- KIN and GB spraye0
- Outcome
- Starch concentratione0
- Direction
- increasede0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“rice”
e0“Starch concentration in leaves and panicles of both the rice cultivars were increased significantly (p<0.05) by KIN and GB spray.”
Claim · model-written summary
Starch increase in panicles was more pronounced in Basmatti-385 than KS-282.
- Taxon
- riceOryza sativat0
- Organ / stage
- paniclese0
- Treatment
- KIN and GB spraye1
- Outcome
- starche0
- Direction
- more pronouncede0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“rice”
e0“the magnitude of increase of the starch in panicles was more pronounced in cv. Basmatti-385 than cv. KS-282.”
e1“Starch concentration in leaves and panicles of both the rice cultivars were increased significantly (p<0.05) by KIN and GB spray.”
Claim · model-written summary
Kinetin and glycine betain increased paddy yield in both cultivars under water stress.
- Taxon
- riceOryza sativat0
- Treatment
- KIN and GB spraye0
- Outcome
- paddy yielde0
- Direction
- increasede0
Not reportedOrgan / stageComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“rice”
e0“Under the applied water stress both KIN and GB spray significantly increased paddy yield in both the rice cultivars.”
Claim · model-written summary
Kinetin and glycine betain increased seeds per panicle in both cultivars.
- Taxon
- riceOryza sativat0
- Organ / stage
- paniclee0
- Treatment
- KIN and GB spraye0
- Outcome
- number of seeds per paniclee0
- Direction
- increasede0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“rice”
e0“Both KIN and GB spray significantly increased the number of seeds per panicle in both the rice cultivars.”
Claim · model-written summary
Yield and seed number increases were greater in Basmatti-385 than KS-282.
- Taxon
- riceOryza sativat0
- Material
- Basmatti-385e0
- Outcome
- paddy yield and seed numbere0
- Direction
- greatere0
- Comparator
- KS-282e0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“rice (Oryza sativa L.)”
e0“The quantitative increase in paddy yield and seed number was greater in cv. Basmatti-385 as compared to cv. KS-282.”
Claim · model-written summary
The authors recommend kinetin at flowering to mitigate water stress in fine rice.
- Taxon
- riceOryza sativat0
- Outcome
- Exogenous application of KIN at flowering stagee0
- Qualifier
- water stress in fine rice cultivarse0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“rice”
e0“Exogenous application of KIN at flowering stage could be used as an effective treatment to mimic the adverse effects of water stress in fine rice cultivars.”
The same questions in other papers
kinetin · yield · Oryza sativa (rice)Results differ
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- positive
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See all 11 papers →application · quality: sugar starch · Oryza sativa (rice)Positive and negative results
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- no effect
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See all 24 papers →application · yield · Oryza sativa (rice)Positive and negative results
644 papers in the same direction as this paper · 37 in the opposite direction · 9 reporting no difference from an alternative
- negative
- no effect
- no effect
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See all 691 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.