Abstract
Melatonin has been recognized as a regulator of plant growth and development. The present study aims to optimize the appropriate dosage of melatonin through seed priming, taking into account a range of physio-biochemical traits. Two distinct rice genotypes with divergent yield potentials, namely N-22 (drought-tolerant) and IR-64 (drought-susceptible) were subjected to priming with varying concentrations of melatonin (0, 60, 90, 120, 150, and 180 ppm). Our study revealed that, at the 120-ppm melatonin concentration, IR-64 demonstrated superior germination rates, root biomass, shoot biomass, chlorophyll content, and total antioxidant activity as compared to N-22 genotype. Conversely, N-22 displayed enhanced shoot length and root length in contrast to IR-64, at the 120-ppm dosage. Additionally, the melatonin concentration of 120 ppm exhibited profound efficacy in reshaping root-shoot architecture (RSA) in both genotypes. Consequently, the optimal melatonin dosage for effective seed priming was established as 120 ppm. Further, priming the seeds of IR-64 and N-22 with melatonin (120 ppm) holds the potential to enhance rice yield through the augmentation of overall growth and development. These findings enrich our comprehension of melatonin's influence on rice seed priming and pave the path for future explorations into the fundamental mechanisms governing these effects.
Abstract from the paper’s OpenAlex record; open copy licensed cc-by. 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 5
Claim · model-written summary
At 120 ppm melatonin, IR-64 had higher germination, root biomass and shoot biomass than N-22.
- Taxon
- rice
Oryza sativat0 - Material
- IR-64e0
- Treatment
- 120-ppm melatonin concentratione0
- Outcome
- germination rates, root biomass, shoot biomasse0
- Direction
- superiore0
- Comparator
- N-22 genotypee0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“at the 120-ppm melatonin concentration, IR-64 demonstrated superior germination rates, root biomass, shoot biomass, chlorophyll content, and total antioxidant activity as compared to N-22 genotype”
t0“rice (Oryza sativa L.)”
Claim · model-written summary
At 120 ppm melatonin, IR-64 had higher chlorophyll content and antioxidant activity than N-22.
- Taxon
- riceOryza sativat0
- Material
- IR-64e0
- Treatment
- 120-ppm melatonin concentratione0
- Outcome
- chlorophyll content, and total antioxidant activitye0
- Direction
- superiore0
- Comparator
- N-22 genotypee0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“at the 120-ppm melatonin concentration, IR-64 demonstrated superior germination rates, root biomass, shoot biomass, chlorophyll content, and total antioxidant activity as compared to N-22 genotype”
t0“rice (Oryza sativa L.)”
Claim · model-written summary
At 120 ppm melatonin, N-22 had longer shoots and roots than IR-64.
- Taxon
- riceOryza sativat0
- Material
- N-22e0
- Treatment
- 120-ppm dosagee0
- Outcome
- shoot length and root lengthe0
- Direction
- enhancede0
- Comparator
- IR-64e0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“N-22 displayed enhanced shoot length and root length in contrast to IR-64, at the 120-ppm dosage”
t0“rice (Oryza sativa L.)”
Claim · model-written summary
A 120 ppm melatonin dose reshaped root-shoot architecture in both genotypes.
- Taxon
- riceOryza sativat0
- Treatment
- melatonin concentration of 120 ppme0
- Outcome
- root-shoot architecture (RSA)e0
Not reportedComparatorDirection
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“melatonin concentration of 120 ppm exhibited profound efficacy in reshaping root-shoot architecture (RSA) in both genotypes”
t0“rice (Oryza sativa L.)”
Claim · model-written summary
The authors identified 120 ppm as the optimal melatonin priming dosage.
- Taxon
- riceOryza sativat0
- Treatment
- melatonin dosagee0
- Outcome
- effective seed priminge0
- Value
- 120 ppme0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“optimal melatonin dosage for effective seed priming was established as 120 ppm”
t0“rice (Oryza sativa L.)”
The same questions in other papers
melatonin · growth · Oryza sativa (rice)Results agree
27 papers in the same direction as this paper
- positive
- positive
- positive
24 papers more in this group
See all 28 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.