Abstract
벼의 일조부족에 대한 생리적 반응을 조사하기 위하여 유수형성기와 수잉기에 각각 40%, 70% 차광처리를 출수직전까지 처리한 결과를 요약하면 다음과 같다. 1. 유수형성기와 수잉기에 차광처리후 출수기 간장은 차광처리가 유의하게 길어졌고, 수장은 유의하게 감소하였다. 2. 출수 후 건물생산량은 무처리에 비하여 차광 처리구에서 현저하게 감소하였으며 유수형성기 처리가 수잉기 처리에 비하여 유의한 감소를 보였고, 40% 차광처리보다 70% 차광처리에서 현저하게 감소하였다. 3. 차광처리구의 출수 후 잎의 엽색도와 질소 함량은 무처리에 비하여 유수형성기와 수잉기 처리 모두 차광 처리 정도가 높을수록 높아졌다. 4. 출수 후 20일에 벼 식물체 도복지수는 차광처리가 현저히 높아졌으며, 유수형성기 처리구가 수잉기 처리보다 유의하게 높아졌다. 5. 차광처리는 수량구성요소 중에서 이삭수와 이삭당 영화수를 감소시켰으며, 등숙률과 천립중을 감소시킴으로서 수량을 유의하게 감소시켰다. 6. 차광처리는 쌀의 단백질 함량을 높였으며 아밀로스 함량은 감소폭이 크지 않았다. Recently, rice growth and production have been influenced by climatic change worldwide. In particular, under low solar radiation and cloudy weather, rice plants show abnormal physiological responses. In this experiment, plants of the rice cultivar Samgwangbyeo grown 40% and 70% shading and natural conditions at the primordium initiation stage (PI) for 30 days and the booting stage for 10 days up to heading were compared. After shading treatments, culm lengths were significnatly longer than that in natural condition plots, and panicle lengths were shorter in the 40% and 70% shading treatment plots compared to control plots. After heading, the production of dry matter treated at the PI stage was significantly lower than that at the booting stage. SPAD values of the leaf color and N concentration of leaves treated with shading were greater than those under natural conditions. In the shading treatment, the lodging index at 20 days after heading was significantly higher than that in natural condition. For yield components, number of panicles, spikelet number per panicle, and ripened grain ratio significantly decreased with shading treatment; thus, rice yield decreased significantly. For rice quality, the protein content of the head rice treated with shading was significantly higher than that in the control plot, but the amylose content of rice treated with shading was signifiantly lower than that in rice in control plots.
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 12
Claim · model-written summary
Shaded rice had significantly longer culms than plants under natural conditions.
- Taxon
- rice
Oryza sativae1 - Material
- Samgwangbyeoe1
- Treatment
- shading treatmentse0
- Outcome
- culm lengthse0
- Direction
- longere0
- Comparator
- natural condition plotse0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“After shading treatments, culm lengths were significnatly longer than that in natural condition plots”
e1“In this experiment, plants of the rice cultivar Samgwangbyeo grown 40% and 70% shading and natural conditions at the primordium initiation stage (PI) for 30 days and the booting stage for 10 days up to heading were compared.”
Claim · model-written summary
Shading shortened rice panicles relative to control plots.
- Taxon
- riceOryza sativae1
- Treatment
- 40% and 70% shading treatment plotse0
- Outcome
- panicle lengthse0
- Direction
- shortere0
- Comparator
- control plotse0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“panicle lengths were shorter in the 40% and 70% shading treatment plots compared to control plots”
e1“In this experiment, plants of the rice cultivar Samgwangbyeo grown 40% and 70% shading and natural conditions at the primordium initiation stage (PI) for 30 days and the booting stage for 10 days up to heading were compared.”
Claim · model-written summary
Post-heading rice dry matter production was significantly lower after primordium initiation shading than after booting-stage shading.
- Taxon
- riceOryza sativae1
- Treatment
- PI stagee0
- Outcome
- production of dry mattere0
- Direction
- lowere0
- Comparator
- booting stagee0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“After heading, the production of dry matter treated at the PI stage was significantly lower than that at the booting stage”
e1“In this experiment, plants of the rice cultivar Samgwangbyeo grown 40% and 70% shading and natural conditions at the primordium initiation stage (PI) for 30 days and the booting stage for 10 days up to heading were compared.”
Claim · model-written summary
Shaded rice leaves had greater SPAD leaf color values than leaves in natural conditions.
- Taxon
- riceOryza sativae1
- Treatment
- shadinge0
- Outcome
- SPAD values of the leaf colore0
- Direction
- greatere0
- Comparator
- natural conditionse0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“SPAD values of the leaf color and N concentration of leaves treated with shading were greater than those under natural conditions”
e1“In this experiment, plants of the rice cultivar Samgwangbyeo grown 40% and 70% shading and natural conditions at the primordium initiation stage (PI) for 30 days and the booting stage for 10 days up to heading were compared.”
Claim · model-written summary
Shaded rice leaves had greater nitrogen concentration than leaves in natural conditions.
- Taxon
- riceOryza sativae1
- Treatment
- shadinge0
- Outcome
- N concentration of leavese0
- Direction
- greatere0
- Comparator
- natural conditionse0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“SPAD values of the leaf color and N concentration of leaves treated with shading were greater than those under natural conditions”
e1“In this experiment, plants of the rice cultivar Samgwangbyeo grown 40% and 70% shading and natural conditions at the primordium initiation stage (PI) for 30 days and the booting stage for 10 days up to heading were compared.”
Claim · model-written summary
Shading significantly increased rice lodging index 20 days after heading.
- Taxon
- riceOryza sativae1
- Treatment
- shading treatmente0
- Outcome
- lodging indexe0
- Direction
- highere0
- Qualifier
- at 20 days after headinge0
- Comparator
- natural conditione0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“In the shading treatment, the lodging index at 20 days after heading was significantly higher than that in natural condition”
e1“In this experiment, plants of the rice cultivar Samgwangbyeo grown 40% and 70% shading and natural conditions at the primordium initiation stage (PI) for 30 days and the booting stage for 10 days up to heading were compared.”
Claim · model-written summary
Shading significantly reduced the number of rice panicles.
- Taxon
- riceOryza sativae1
- Treatment
- shading treatmente0
- Outcome
- number of paniclese0
- Direction
- decreasede0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“number of panicles, spikelet number per panicle, and ripened grain ratio significantly decreased with shading treatment”
e1“In this experiment, plants of the rice cultivar Samgwangbyeo grown 40% and 70% shading and natural conditions at the primordium initiation stage (PI) for 30 days and the booting stage for 10 days up to heading were compared.”
Claim · model-written summary
Shading significantly reduced spikelets per rice panicle.
- Taxon
- riceOryza sativae1
- Treatment
- shading treatmente0
- Outcome
- spikelet number per paniclee0
- Direction
- decreasede0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“number of panicles, spikelet number per panicle, and ripened grain ratio significantly decreased with shading treatment”
e1“In this experiment, plants of the rice cultivar Samgwangbyeo grown 40% and 70% shading and natural conditions at the primordium initiation stage (PI) for 30 days and the booting stage for 10 days up to heading were compared.”
Claim · model-written summary
Shading significantly reduced the rice ripened grain ratio.
- Taxon
- riceOryza sativae1
- Treatment
- shading treatmente0
- Outcome
- ripened grain ratioe0
- Direction
- decreasede0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“number of panicles, spikelet number per panicle, and ripened grain ratio significantly decreased with shading treatment”
e1“In this experiment, plants of the rice cultivar Samgwangbyeo grown 40% and 70% shading and natural conditions at the primordium initiation stage (PI) for 30 days and the booting stage for 10 days up to heading were compared.”
Claim · model-written summary
Shading significantly reduced rice yield.
- Taxon
- riceOryza sativae0
- Treatment
- shading treatmente0
- Outcome
- rice yielde0
- Direction
- decreasede0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“number of panicles, spikelet number per panicle, and ripened grain ratio significantly decreased with shading treatment; thus, rice yield decreased significantly”
Claim · model-written summary
Shading significantly increased protein content of head rice relative to controls.
- Taxon
- riceOryza sativae0
- Treatment
- shadinge0
- Outcome
- protein content of the head ricee0
- Direction
- highere0
- Comparator
- control plote0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“the protein content of the head rice treated with shading was significantly higher than that in the control plot”
Claim · model-written summary
Shading significantly reduced rice amylose content relative to controls.
- Taxon
- riceOryza sativae0
- Treatment
- shadinge0
- Outcome
- amylose content of ricee0
- Direction
- lowere0
- Comparator
- control plotse0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“the amylose content of rice treated with shading was signifiantly lower than that in rice in control plots”
The same questions in other papers
shade · growth · Oryza sativa (rice)Results differ
25 papers in the same direction as this paper · 10 in the opposite direction
- positive
- positive
- positive
32 papers more in this group
See all 36 papers →shade · yield · Oryza sativa (rice)Positive and negative results
55 papers in the same direction as this paper · 15 in the opposite direction
- negative
- no effect
- positive
67 papers more in this group
See all 71 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.