Abstract
The local paddle field in Yuanyang Terrace was considered as a sustainable and stable agricultural ecosystem. Two local rice varieties, Baijiaolaojing and Yuelianggu, were grown in the paddy field for two consecutive years under ambient and supplemental levels of ul- traviolet-B(UV-B, 280～315 nm)radiation to determine the potential for alterations in contents of silicon in culm and leaves, of flavonoids and total phenolic in leaves. The supplemental UV-B radiation was 2.5kJ·m-2 , 5.0 kJ·m -2 and 7.5kJ·m-2 , simulating a depletion of 10%, 20% and 30% stratospheric ozone. The results showed that:(1)The silicon contents of culm and leaves in jointing stage of Baijiaolaojing, of culm in heading stage and of leaves in jointing and heading stage of Yuelianggu were siginificantly increased under UV-B radiation(.2)Except 2.5kJ·m-2 UV-B radiation, the flavonoids contents of leaves in heading stage of Baijiaolaojing and Yuelianggu were siginificantly increased under other UV-B radiations(.3)UV-B radiation caused the total phenolic contents of leaves in tillering and jointing stage(except 2.5kJ·m-2 UV-B radiation), and in heading stage of Baijiaolaojing, in tillering and heading stage(except 2.5kJ·m-2 UV-B radiation) of Yuelianggu to significantly enhance.(4)That the very significant positive correlation was between contents of silicon and contents of flavonoids and total phenolic of leaves of these two local rice varieties was observed. Overall, the encreased percentage of silicon contents of culm and leaves, of the flavonoids and total phenolic contents of leaves that was caused by UV-B radiation of Baijiaolaojing was more than that of Yuelianggu, which indicated that the resistance to UV -B radiation was different to some extent between Baijiaolaojing and Yuelianggu.
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Claims 8
Claim · model-written summary
UV-B significantly increased silicon contents in Baijiaolaojing.
- Taxon
- Rice
Oryza sativat0 - Material
- Baijiaolaojinge0
- Treatment
- UV-B radiatione0
- Outcome
- silicon contents of culm and leavese0
- Direction
- increasede0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“The silicon contents of culm and leaves in jointing stage of Baijiaolaojing, of culm in heading stage and of leaves in jointing and heading stage of Yuelianggu were siginificantly increased under UV-B radiation”
t0“Rice Varieties”
Claim · model-written summary
UV-B significantly increased silicon contents in Yuelianggu.
- Taxon
- RiceOryza sativat0
- Material
- Yuelianggue0
- Treatment
- UV-B radiatione0
- Outcome
- silicon contentse0
- Direction
- increasede0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“The silicon contents of culm and leaves in jointing stage of Baijiaolaojing, of culm in heading stage and of leaves in jointing and heading stage of Yuelianggu were siginificantly increased under UV-B radiation”
t0“Rice Varieties”
Claim · model-written summary
UV-B significantly increased leaf flavonoids in Baijiaolaojing except at the lowest dose.
- Taxon
- RiceOryza sativat0
- Material
- Baijiaolaojinge0
- Treatment
- UV-B radiatione0
- Outcome
- flavonoids contents of leavese0
- Direction
- increasede0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Except 2.5kJ·m-2 UV-B radiation, the flavonoids contents of leaves in heading stage of Baijiaolaojing and Yuelianggu were siginificantly increased under other UV-B radiations”
t0“Rice Varieties”
Claim · model-written summary
UV-B significantly increased leaf flavonoids in Yuelianggu except at the lowest dose.
- Taxon
- RiceOryza sativat0
- Material
- Yuelianggue0
- Treatment
- UV-B radiatione0
- Outcome
- flavonoids contents of leavese0
- Direction
- increasede0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Except 2.5kJ·m-2 UV-B radiation, the flavonoids contents of leaves in heading stage of Baijiaolaojing and Yuelianggu were siginificantly increased under other UV-B radiations”
t0“Rice Varieties”
Claim · model-written summary
UV-B significantly increased leaf phenolics in Baijiaolaojing.
- Taxon
- RiceOryza sativat0
- Material
- Baijiaolaojinge0
- Treatment
- UV-B radiatione0
- Outcome
- total phenolic contents of leavese0
- Direction
- enhancee0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“UV-B radiation caused the total phenolic contents of leaves in tillering and jointing stage(except 2.5kJ·m-2 UV-B radiation), and in heading stage of Baijiaolaojing, in tillering and heading stage(except 2.5kJ·m-2 UV-B radiation) of Yuelianggu to significantly enhance”
t0“Rice Varieties”
Claim · model-written summary
UV-B significantly increased leaf phenolics in Yuelianggu.
- Taxon
- RiceOryza sativat0
- Material
- Yuelianggue0
- Treatment
- UV-B radiatione0
- Outcome
- total phenolic contents of leavese0
- Direction
- enhancee0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“UV-B radiation caused the total phenolic contents of leaves in tillering and jointing stage(except 2.5kJ·m-2 UV-B radiation), and in heading stage of Baijiaolaojing, in tillering and heading stage(except 2.5kJ·m-2 UV-B radiation) of Yuelianggu to significantly enhance”
t0“Rice Varieties”
Claim · model-written summary
Leaf silicon content correlated positively with flavonoid and total phenolic contents in both rice varieties.
- Taxon
- RiceOryza sativat0
- Compound
- silicone0
- Outcome
- contents of flavonoids and total phenolic of leavese0
- Direction
- positivee0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“very significant positive correlation was between contents of silicon and contents of flavonoids and total phenolic of leaves of these two local rice varieties”
t0“Rice Varieties”
Claim · model-written summary
Baijiaolaojing had larger UV-B related percentage increases than Yuelianggu.
- Taxon
- RiceOryza sativat0
- Material
- Baijiaolaojinge0
- Outcome
- encreased percentage of silicon contents of culm and leaves, of the flavonoids and total phenolic contents of leavese0
- Direction
- more thane0
- Comparator
- Yuelianggue0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“encreased percentage of silicon contents of culm and leaves, of the flavonoids and total phenolic contents of leaves that was caused by UV-B radiation of Baijiaolaojing was more than that of Yuelianggu”
t0“Rice Varieties”
The same questions in other papers
uv · nutrient: content · Oryza sativa (rice)Positive and negative results
2 in the opposite direction
- negative
- negative
uv · quality: phytochemicals · Oryza sativa (rice)Positive and negative results
5 papers in the same direction as this paper · 2 in the opposite direction
- negative
- no effect
- 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.