Abstract
Melatonin plays an important role in plant growth and development. However, little information is available about melatonin regulating rice panicle structure and yield. This study explored the regulatory effects and mechanisms of melatonin spraying before the panicle differentiation stage on rice panicle structure and grain quality. The results showed that spraying melatonin before panicle differentiation increased rice yield, which was mainly reflected in the increase in spikelets per panicle and the percentage of filled grains. In addition, melatonin treatment significantly increased the panicle length. The results of panicle structure analysis showed that the increase in spikelets per panicle caused by melatonin was attributed to the significant increase in the number of secondary branches, total number of secondary branch spikelets, and number of spikelets per secondary branch. The results showed that melatonin can increase the content of zeatin, auxin, and gibberellin, and reduce the content of abscisic acid. These results showed that melatonin affected panicle structure by regulating hormone content, thereby improving yield. In addition, melatonin improves the processing quality, appearance quality, and nutritional quality of secondary branch grains. The above results indicate that application of melatonin improves the number of secondary branches and the quality of grainss on secondary branches.
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Claims 7
Claim · model-written summary
Melatonin spraying before panicle differentiation increased rice yield.
- Taxon
- rice
Oryza sativae0 - Treatment
- spraying melatonin before panicle differentiatione0
- Outcome
- rice yielde0
- Direction
- increasede0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“spraying melatonin before panicle differentiation increased rice yield”
Claim · model-written summary
Melatonin spraying increased spikelets per panicle and the percentage of filled grains.
- Taxon
- riceOryza sativae0
- Treatment
- spraying melatonin before panicle differentiatione0
- Outcome
- spikelets per panicle and the percentage of filled grainse0
- Direction
- increasee0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“spraying melatonin before panicle differentiation increased rice yield, which was mainly reflected in the increase in spikelets per panicle and the percentage of filled grains”
Claim · model-written summary
Melatonin significantly increased panicle length.
- Taxon
- riceOryza sativae0t0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“melatonin treatment significantly increased the panicle length”
t0“rice”
Claim · model-written summary
Melatonin increased secondary branch number, secondary branch spikelets and spikelets per secondary branch.
- Taxon
- riceOryza sativae0e1t0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“the significant increase in the number of secondary branches, total number of secondary branch spikelets, and number of spikelets per secondary branch”
e1“melatonin was attributed”
t0“rice”
Claim · model-written summary
Melatonin increased zeatin, auxin and gibberellin content.
- Taxon
- riceOryza sativae0t0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“melatonin can increase the content of zeatin, auxin, and gibberellin”
t0“rice”
Claim · model-written summary
Melatonin reduced abscisic acid content.
- Taxon
- riceOryza sativae0t0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“melatonin can increase the content of zeatin, auxin, and gibberellin, and reduce the content of abscisic acid”
t0“rice”
Claim · model-written summary
Melatonin improved processing, appearance and nutritional quality of secondary branch grains.
- Taxon
- riceOryza sativae0t0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“melatonin improves the processing quality, appearance quality, and nutritional quality of secondary branch grains”
t0“rice”
The same questions in other papers
melatonin · physiology: hormones · Oryza sativa (rice)Results agree
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See all 7 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
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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.