Abstract
Inferior tillers contribute negligibly to rice grain yields as their late occurrence or prematurity curtails growth. However, 6-benzylaminopurine (6-BA, a synthetic cytokinin) can delay tiller senescence. Our results indicate that foliar application of 6-BA enhanced the distribution and allocation of light energy for the photochemical reactions of PSII, under appropriate N supply. The percentage of thermal energy dissipation also decreased following the application of 6-BA as a consequence of the reduced risk of chloroplast oxidative damage through excess excitations. Moreover, leaf peroxidase, catalase, and ascorbate peroxidase activities were augmented by adding 6-BA, which significantly inhibited the accumulation of malondialdehyde and H2O2. The application of 6-BA increased the grain numbers of the inferior tillers and further enhanced tiller yields under 82.5 and 165 kg(N) ha-1 supply. The effect of 6-BA was negligible for the untreated or excessive N-treated plants.
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Claims 8
Claim · model-written summary
6-BA enhanced light energy distribution and allocation for PSII photochemical reactions under appropriate N supply.
- Taxon
- rice
Oryza sativat0 - Treatment
- foliar application of 6-BAe0
- Outcome
- distribution and allocation of light energy for the photochemical reactions of PSIIe0
- Direction
- enhancede0
- Qualifier
- under appropriate N supplye0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“foliar application of 6-BA enhanced the distribution and allocation of light energy for the photochemical reactions of PSII, under appropriate N supply”
t0“rice”
Claim · model-written summary
6-BA decreased thermal energy dissipation.
- Taxon
- riceOryza sativat0
- Treatment
- application of 6-BAe0
- Outcome
- percentage of thermal energy dissipatione0
- Direction
- decreasede0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“The percentage of thermal energy dissipation also decreased following the application of 6-BA”
t0“rice”
Claim · model-written summary
The reduction in thermal dissipation was attributed to reduced risk of chloroplast oxidative damage.
- Taxon
- riceOryza sativat0
- Outcome
- thermal energy dissipatione0
- Qualifier
- reduced risk of chloroplast oxidative damage through excess excitationse0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“The percentage of thermal energy dissipation also decreased following the application of 6-BA as a consequence of the reduced risk of chloroplast oxidative damage through excess excitations”
t0“rice”
Claim · model-written summary
6-BA increased leaf peroxidase, catalase, and ascorbate peroxidase activities.
- Taxon
- riceOryza sativat0
- Treatment
- adding 6-BAe0
- Outcome
- leaf peroxidase, catalase, and ascorbate peroxidase activitiese0
- Direction
- augmentede0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“leaf peroxidase, catalase, and ascorbate peroxidase activities were augmented by adding 6-BA”
t0“rice”
Claim · model-written summary
6-BA significantly inhibited accumulation of malondialdehyde and H2O2.
- Taxon
- riceOryza sativat0
- Treatment
- adding 6-BAe0
- Outcome
- accumulation of malondialdehyde and H2O2e0
- Direction
- inhibitede0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“adding 6-BA, which significantly inhibited the accumulation of malondialdehyde and H2O2”
t0“rice”
Claim · model-written summary
6-BA increased grain numbers of inferior tillers under 82.5 and 165 kg(N) ha-1 nitrogen supply.
- Taxon
- riceOryza sativat0
- Treatment
- application of 6-BAe0
- Outcome
- grain numbers of the inferior tillerse0
- Direction
- increasede0
- Qualifier
- under 82.5 and 165 kg(N) ha-1 supplye0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“The application of 6-BA increased the grain numbers of the inferior tillers and further enhanced tiller yields under 82.5 and 165 kg(N) ha-1 supply”
t0“rice”
Claim · model-written summary
6-BA enhanced inferior tiller yields under 82.5 and 165 kg(N) ha-1 nitrogen supply.
- Taxon
- riceOryza sativat0
- Treatment
- application of 6-BAe0
- Outcome
- tiller yieldse0
- Direction
- enhancede0
- Qualifier
- under 82.5 and 165 kg(N) ha-1 supplye0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“The application of 6-BA increased the grain numbers of the inferior tillers and further enhanced tiller yields under 82.5 and 165 kg(N) ha-1 supply”
t0“rice”
Claim · model-written summary
6-BA had negligible effect on untreated or excessive N-treated plants.
- Taxon
- riceOryza sativat0
- Treatment
- 6-BAe0
- Outcome
- effecte0
- Direction
- negligiblee0
- Qualifier
- untreated or excessive N-treated plantse0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“The effect of 6-BA was negligible for the untreated or excessive N-treated plants”
t0“rice”
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