Abstract
With Wuxiangjing 9 (a japonica variety) and Shanyou 63 (an indica hybrid rice combination) as material, the effects of soil moisture (soil water potential) on the development of rice quality at filling stage were studied in the pot by rigorously controlling soil water potential with tensionmeters. The main results were as follows: (1) During the grain filling period, when the soil water potential (SWP) was reduced to -15 kPa, head milled rice was significantly increased, gel consistency become soft and no obvious effects on the percentage of chalky grain and chalkiness were observed; (2) While SWP was ≤-30 kPa, head milled rice was significantly decreased, both the percentage of chalky grain and chalkiness significantly increased. There was a conic relationship between gel consistency and SWP, and no significant difference among treatments in other quality indices, such as kernel shape, amylase and protein content, were found; (3) There were obviously changes in leaf to spikelet ratio, chlorophyll content and grain water content during grain filling period. If the low soil water potential was under -30 kPa, the relative dispersion of leaf to spikelet ratio and chlorophyll content were presented negative effects during the 25~35 days after flowering, dehydration of kernel was very rapid, which had an effect on both the production of photoassimilates and the accumulation of starch.
Abstract from the paper’s OpenAlex record, shown for indexing and research. Copyright remains with the authors or the publisher. 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 11
Claim · model-written summary
At −15 kPa, head milled rice significantly increased.
- Taxon
- rice
Oryza sativat0 - Treatment
- reduced to -15 kPae0
- Outcome
- head milled ricee0
- Direction
- increasede0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“when the soil water potential (SWP) was reduced to -15 kPa, head milled rice was significantly increased”
t0“Rice”
Claim · model-written summary
At −15 kPa, gel consistency softened.
- Taxon
- riceOryza sativat0
- Treatment
- reduced to -15 kPae0
- Outcome
- gel consistencye0
- Direction
- softe0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“when the soil water potential (SWP) was reduced to -15 kPa, head milled rice was significantly increased, gel consistency become soft”
t0“Rice”
Claim · model-written summary
At −15 kPa, chalky grain percentage and chalkiness had no obvious effects.
- Taxon
- riceOryza sativat0
- Treatment
- reduced to -15 kPae0
- Outcome
- percentage of chalky grain and chalkinesse0
- Direction
- no obvious effectse0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“when the soil water potential (SWP) was reduced to -15 kPa, head milled rice was significantly increased, gel consistency become soft and no obvious effects on the percentage of chalky grain and chalkiness were observed”
t0“Rice”
Claim · model-written summary
At −30 kPa or lower, head milled rice significantly decreased.
- Taxon
- riceOryza sativat0
- Treatment
- SWP was ≤-30 kPae0
- Outcome
- head milled ricee0
- Direction
- decreasede0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“While SWP was ≤-30 kPa, head milled rice was significantly decreased”
t0“Rice”
Claim · model-written summary
At −30 kPa or lower, chalky grain percentage and chalkiness significantly increased.
- Taxon
- riceOryza sativat0
- Treatment
- SWP was ≤-30 kPae0
- Outcome
- percentage of chalky grain and chalkinesse0
- Direction
- increasede0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“While SWP was ≤-30 kPa, head milled rice was significantly decreased, both the percentage of chalky grain and chalkiness significantly increased”
t0“Rice”
Claim · model-written summary
Gel consistency had a conic relation with soil water potential.
- Taxon
- riceOryza sativat0
- Treatment
- SWPe0
- Outcome
- gel consistencye0
Not reportedDirection
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“There was a conic relationship between gel consistency and SWP”
t0“Rice”
Claim · model-written summary
Kernel shape, amylase and protein content did not significantly differ among treatments.
- Taxon
- riceOryza sativat0
- Treatment
- treatmentse0
- Outcome
- kernel shape, amylase and protein contente0
- Direction
- no significant differencee0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“no significant difference among treatments in other quality indices, such as kernel shape, amylase and protein content, were found”
t0“Rice”
Claim · model-written summary
Leaf to spikelet ratio, chlorophyll content and grain water content changed during grain filling.
- Taxon
- riceOryza sativat0
- Organ / stage
- grain filling periode0
- Outcome
- leaf to spikelet ratio, chlorophyll content and grain water contente0
Not reportedDirection
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“There were obviously changes in leaf to spikelet ratio, chlorophyll content and grain water content during grain filling period”
t0“Rice”
Claim · model-written summary
Below −30 kPa, leaf to spikelet ratio and chlorophyll content were adversely affected at 25–35 days after flowering.
- Taxon
- riceOryza sativat0
- Treatment
- under -30 kPae0
- Outcome
- relative dispersion of leaf to spikelet ratio and chlorophyll contente0
- Direction
- negative effectse0
- Qualifier
- 25~35 days after floweringe0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“If the low soil water potential was under -30 kPa, the relative dispersion of leaf to spikelet ratio and chlorophyll content were presented negative effects during the 25~35 days after flowering”
t0“Rice”
Claim · model-written summary
Below −30 kPa, kernels dehydrated very rapidly.
- Taxon
- riceOryza sativat0
- Treatment
- under -30 kPae0
- Outcome
- dehydration of kernele0
- Direction
- very rapide0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“If the low soil water potential was under -30 kPa, the relative dispersion of leaf to spikelet ratio and chlorophyll content were presented negative effects during the 25~35 days after flowering, dehydration of kernel was very rapid”
t0“Rice”
Claim · model-written summary
Rapid kernel dehydration affected photoassimilate production and starch accumulation.
- Taxon
- riceOryza sativat0
- Organ / stage
- kernele0
- Outcome
- production of photoassimilates and the accumulation of starche0
- Qualifier
- dehydration of kernel was very rapide0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“dehydration of kernel was very rapid, which had an effect on both the production of photoassimilates and the accumulation of starch”
t0“Rice”
The same questions in other papers
soil water · organism · Oryza sativa (rice)Positive and negative results
2 papers in the same direction as this paper · 5 in the opposite direction
- positive
- positive
- positive
4 papers more in this group
See all 8 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.