Abstract
Abstract High temperature has become a bottleneck limiting rice production in many rice‐growing districts. Silicon is considered as a beneficial element for rice development, being involved in mitigating adversity stress. In order to ascertain how high temperature and silicon affect nitrogen (N), phosphorous (P) and potassium (K) translocation efficiencies and allocation in rice plants, a field experiment with split plot design was conducted in two consecutive years. Silicon fertilizer treatments, including applying silicon fertilizer and without applying silicon fertilizer, were regarded as main plots. Temperature treatments, including high daytime temperature ( HDT ) and normal temperature ( NT ), were assigned as subplots. The results indicated that, as compared to NT , HDT reduced the translocation efficiencies of N, P and K in leaves and stems plus sheaths except for the K translocation efficiency in stems plus sheaths. Moreover, HDT decreased grain yield and the allocation rates of N, P and K in panicles at maturity. Under HDT , the application of silicon fertilizer obviously enhanced the N translocation efficiency of leaves and stems plus sheaths, and the K translocation efficiency of leaves. The application of silicon fertilizer increased grain yield and the allocation rates of N and K in panicles at maturity under HDT . Correlation analysis showed that rice grain yield was positively significantly correlated with N, P and K translocation efficiencies of leaves and their allocation rates in panicles at maturity. Conversely, grain yield was negatively related to the N and P allocation rates in leaves and stems plus sheaths at maturity. These results imply that HDT generated adverse effect on the translocation efficiency of nutrition in rice plants, which might be another damage induced by high temperature to the formation of rice grain yield. Additionally, silicon fertilizer could play a key role in positively regulating the N and K translocation efficiencies and allocation rates in rice under HDT .
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Claims 12
Claim · model-written summary
High daytime temperature reduced leaf nitrogen, phosphorus and potassium translocation efficiencies.
- Taxon
- rice
Oryza sativat0 - Organ / stage
- leavese0
- Treatment
- HDTe0
- Outcome
- translocation efficiencies of N, P and K in leavese0
- Direction
- reducede0
- Comparator
- NTe0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“as compared to NT , HDT reduced the translocation efficiencies of N, P and K in leaves and stems plus sheaths except for the K translocation efficiency in stems plus sheaths”
t0“rice”
Claim · model-written summary
High daytime temperature reduced stem and sheath nitrogen and phosphorus translocation efficiencies.
- Taxon
- riceOryza sativat0
- Organ / stage
- stems plus sheathse0
- Treatment
- HDTe0
- Outcome
- translocation efficiencies of N, Pe0
- Direction
- reducede0
- Comparator
- NTe0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“as compared to NT , HDT reduced the translocation efficiencies of N, P and K in leaves and stems plus sheaths except for the K translocation efficiency in stems plus sheaths”
t0“rice”
Claim · model-written summary
High daytime temperature did not reduce potassium translocation efficiency in stems and sheaths.
- Taxon
- riceOryza sativat0
- Treatment
- high daytime temperaturet0
- Outcome
- K translocation efficiency in stems plus sheathse0
Not reportedComparatorDirection
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“except for the K translocation efficiency in stems plus sheaths”
t0“rice as affected by silicon fertilizer under high daytime temperature”
Claim · model-written summary
High daytime temperature decreased rice grain yield.
- Taxon
- riceOryza sativat0
- Treatment
- HDTe0
- Outcome
- grain yielde0
- Direction
- decreasede0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“HDT decreased grain yield and the allocation rates of N, P and K in panicles at maturity”
t0“rice”
Claim · model-written summary
High daytime temperature decreased nitrogen, phosphorus and potassium allocation rates in mature panicles.
- Taxon
- riceOryza sativat0
- Organ / stage
- panicles at maturitye0
- Treatment
- HDTe0
- Outcome
- allocation rates of N, P and K in paniclese0
- Direction
- decreasede0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“HDT decreased grain yield and the allocation rates of N, P and K in panicles at maturity”
t0“rice”
Claim · model-written summary
Under high daytime temperature, silicon fertilizer enhanced nitrogen translocation efficiency in leaves and stems plus sheaths.
- Taxon
- riceOryza sativat0
- Treatment
- application of silicon fertilizere0
- Outcome
- N translocation efficiency of leaves and stems plus sheathse0
- Direction
- enhancede0
- Qualifier
- Under HDTe0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Under HDT , the application of silicon fertilizer obviously enhanced the N translocation efficiency of leaves and stems plus sheaths”
t0“rice”
Claim · model-written summary
Under high daytime temperature, silicon fertilizer enhanced leaf potassium translocation efficiency.
- Taxon
- riceOryza sativat0
- Treatment
- application of silicon fertilizere0
- Outcome
- K translocation efficiency of leavese0
- Direction
- enhancede0
- Qualifier
- Under HDTe0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Under HDT , the application of silicon fertilizer obviously enhanced the N translocation efficiency of leaves and stems plus sheaths, and the K translocation efficiency of leaves”
t0“rice”
Claim · model-written summary
Under high daytime temperature, silicon fertilizer increased rice grain yield.
- Taxon
- riceOryza sativat0
- Treatment
- application of silicon fertilizere0
- Outcome
- grain yielde0
- Direction
- increasede0
- Qualifier
- under HDTe0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“The application of silicon fertilizer increased grain yield and the allocation rates of N and K in panicles at maturity under HDT”
t0“rice”
Claim · model-written summary
Under high daytime temperature, silicon fertilizer increased nitrogen and potassium allocation rates in mature panicles.
- Taxon
- riceOryza sativat0
- Treatment
- application of silicon fertilizere0
- Outcome
- allocation rates of N and K in paniclese0
- Direction
- increasede0
- Qualifier
- under HDTe0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“The application of silicon fertilizer increased grain yield and the allocation rates of N and K in panicles at maturity under HDT”
t0“rice”
Claim · model-written summary
Rice grain yield correlated significantly and positively with leaf nitrogen, phosphorus and potassium translocation efficiencies.
- Taxon
- riceOryza sativae0
- Organ / stage
- leavese0
- Outcome
- grain yielde0
- Direction
- positivelye0
- Qualifier
- N, P and K translocation efficiencies of leavese0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“rice grain yield was positively significantly correlated with N, P and K translocation efficiencies of leaves and their allocation rates in panicles at maturity”
Claim · model-written summary
Rice grain yield correlated significantly and positively with nitrogen, phosphorus and potassium allocation rates in mature panicles.
- Taxon
- riceOryza sativae0
- Organ / stage
- panicles at maturitye0
- Outcome
- grain yielde0
- Direction
- positivelye0
- Qualifier
- their allocation rates in panicles at maturitye0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“rice grain yield was positively significantly correlated with N, P and K translocation efficiencies of leaves and their allocation rates in panicles at maturity”
Claim · model-written summary
Rice grain yield was negatively related to nitrogen and phosphorus allocation rates in leaves and stems plus sheaths at maturity.
- Taxon
- riceOryza sativat0
- Organ / stage
- leaves and stems plus sheaths at maturitye0
- Outcome
- grain yielde0
- Direction
- negativelye0
- Qualifier
- N and P allocation ratese0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“grain yield was negatively related to the N and P allocation rates in leaves and stems plus sheaths at maturity”
t0“rice”
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