Abstract
BACKGROUND: Ratoon rice cropping has been introduced for increased rice production in southern China and, as a result, has been becoming increasingly popular. However, only a few studies have addressed the regulatory mechanism underlying grain quality improvement induced by rice ratooning. RESULTS: In this study, parameters of rice quality, including head rice yield, chalky grain percentage, grain chalkiness degree, hardness and taste value, were shown to be much improved in the ratooning season rice as compared to its counterparts main and late cropping season rice, indicating that such an improvement was irrespective of seasonal effects. In addition, the nutritional components of grains varied greatly between main-cropping season rice, ratooning season rice and late-cropping season rice and displayed a significant correlation with rice quality. Finally, the regulatory mechanism underlying rice quality improvement revealed that gibberellin-dominated regulation and plant hormone signal transduction jointly contributed to a decrease in formation of chalky grains. CONCLUSION: This work improves our knowledge on rice quality improvement under rice ratooning, particularly on the regulatory mechanism of plant hormones. © 2022 Society of Chemical Industry.
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Claims 4
Claim · model-written summary
Ratoon season rice had improved head rice yield, chalkiness measures, hardness and taste relative to main and late season rice.
- Taxon
- rice
Oryza sativae0 - Treatment
- ratooning season ricee0
- Outcome
- head rice yield, chalky grain percentage, grain chalkiness degree, hardness and taste valuee0
- Direction
- much improvede0
- Comparator
- main and late cropping season ricee0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“parameters of rice quality, including head rice yield, chalky grain percentage, grain chalkiness degree, hardness and taste value, were shown to be much improved in the ratooning season rice as compared to its counterparts main and late cropping season rice”
Claim · model-written summary
Grain nutritional components varied greatly among main, ratoon and late cropping season rice.
- Taxon
- riceOryza sativae0
- Outcome
- nutritional components of grainse0
- Direction
- varied greatlye0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“the nutritional components of grains varied greatly between main-cropping season rice, ratooning season rice and late-cropping season rice”
Claim · model-written summary
Grain nutritional components correlated significantly with rice quality.
- Taxon
- riceOryza sativae0
- Organ / stage
- grainse0
- Outcome
- rice qualitye0
- Qualifier
- nutritional components of grainse0
Not reportedCompoundDirection
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“the nutritional components of grains varied greatly between main-cropping season rice, ratooning season rice and late-cropping season rice and displayed a significant correlation with rice quality”
Claim · model-written summary
Gibberellin dominated regulation and hormone signal transduction contributed to fewer chalky grains.
- Taxon
- riceOryza sativat0
- Compound
- gibberelline0
- Outcome
- formation of chalky grainse0
- Direction
- decreasee0
- Qualifier
- plant hormone signal transductione0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“gibberellin-dominated regulation and plant hormone signal transduction jointly contributed to a decrease in formation of chalky grains”
t0“rice ratooning”
The same questions in other papers
climate site · quality: postharvest · Oryza sativa (rice)Positive and negative results
1 in the opposite direction
- negative
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.