Abstract
In this study, the average daily temperatures from September to November in Nantong City were analyzed. According to the critical temperature indices for japonica rice, obtained rice safe dates of full heading and maturity and the guarantee rate for the safe dates was 50%, 80%, and 90%, respectively. It was observed that the safe dates of full heading during the third 20 years were eight to nine days later than those during the first and second 20 years, and the safe dates of maturity were five to ten days later, respectively.It was observed that as the globe warmed, the critical temperature indices of full heading(20℃)would not develop the function of guiding production, and proposed the reference index, the summation of effective temperature from full heading to maturity, to predict the dates through the security maturity forward daily cumulative effective temperature(≥10℃). The corrected safe dates for full heading of 80% were September 6, 25 days earlier than initial predicted dates.
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Claims 4
Claim · model-written summary
Safe full-heading dates in the third 20-year period were eight to nine days later than in the first two periods.
- Taxon
- Japonica Rice
_by_Augustus_Binu.jpg?width=60)
Oryza sativa Japonica Groupt0 - Outcome
- safe dates of full headinge0
- Direction
- latere0
- Value
- eight to nine dayse0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
_by_Augustus_Binu.jpg?width=500)
Verbatim
e0“safe dates of full heading during the third 20 years were eight to nine days later than those during the first and second 20 years”
t0“Japonica Rice”
Claim · model-written summary
Safe maturity dates in the third period were five to ten days later.
- Taxon
- Japonica RiceOryza sativa Japonica Groupt0
- Outcome
- safe dates of maturitye0
- Direction
- latere0
- Value
- five to ten dayse0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“safe dates of maturity were five to ten days later”
t0“Japonica Rice”
Claim · model-written summary
The 20℃ critical full-heading temperature index was judged unsuitable for guiding production as the globe warmed.
- Taxon
- Japonica RiceOryza sativa Japonica Groupt0
- Outcome
- would not develop the function of guiding productione0
- Value
- 20℃e0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“as the globe warmed, the critical temperature indices of full heading(20℃)would not develop the function of guiding production”
t0“Japonica Rice”
Claim · model-written summary
The proposed effective-temperature reference index yielded an 80% safe full-heading date of September 6, 25 days before the initial prediction.
- Taxon
- Japonica RiceOryza sativa Japonica Groupt0
- Outcome
- corrected safe dates for full headinge0
- Direction
- earliere0
- Value
- September 6e0
- Qualifier
- 80%e0
- Comparator
- initial predicted datese0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“proposed the reference index, the summation of effective temperature from full heading to maturity, to predict the dates through the security maturity forward daily cumulative effective temperature(≥10℃). The corrected safe dates for full heading of 80% were September 6, 25 days earlier than initial predicted dates”
t0“Japonica Rice”