Abstract
To explore the effects of different soil water potential of ripening stage on rice yield and physiological traits in saline-alkali soil, using four treatment levels of soil water potential of 0 kPa (H1: soil moisture), soil water potential of -15 kPa (H2), soil water potential of -30 kPa (H3), and CK (continuously flooded), a comparative study of different soil water potential of ripening stage on grain yield, dry matter production, and leaf physiological treats were conducted. The results showed that the soil water control of rice dough stage in the soda saline soil, grain yield showed the trend of A (0kPa) > CK (water layer), B (-15 kPa) > C (-30 kPa), A(0k Pa) compared with CK (water layer), B(-15kPa) and C(-30k Pa) were increased by 3.01%, 12.40%, 18.08%; total dry matter accumulation showed A (0kPa) > CK (water layer), B (-15kPa) > C (-30 kPa), A (0 kPa) is slightly higher than that of CK, no significant differences, A(0 kPa), CK(water layer) and B(-15k a), C (-30 kPa) reached a significant differences level (p<0.01); the increase of free proline content in leaves from high to low in the order of B > C > CK > A; the highest chlorophyll content was C, B content was the lowest, the chlorophyll content in the leaves was from high to low order C> CK > A> B; the highest level of LRWC was CK, the average of 49.65% for two years, the of LRWC for two years showed CK> A> B > C trend; The LAI trend of each treatment on September 10, September 15 and September 20 was basically the order of CK> A> B> C. The soda saline alkali soil rice dough stage field should be moisturizing state (0kPa).
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Claims 11
Claim · model-written summary
Rice grain yield under soil water potential 0 kPa was increased by 3.01% compared with CK (water layer) in saline-alkali soil.
- Taxon
- Rice
Oryza sativat0 - Treatment
- A(0k Pa)e0
- Outcome
- grain yielde0
- Direction
- increasede0
- Value
- 3.01%e0
- Comparator
- CK (water layer)e0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“Rice”
e0“grain yield showed the trend of A (0kPa) > CK (water layer), B (-15 kPa) > C (-30 kPa), A(0k Pa) compared with CK (water layer), B(-15kPa) and C(-30k Pa) were increased by 3.01%, 12.40%, 18.08%”
Claim · model-written summary
Rice grain yield under soil water potential 0 kPa was increased by 12.40% compared with B(-15kPa) in saline-alkali soil.
- Taxon
- RiceOryza sativat0
- Treatment
- A(0k Pa)e0
- Outcome
- grain yielde0
- Direction
- increasede0
- Value
- 12.40%e0
- Comparator
- B(-15kPa)e0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“Rice”
e0“grain yield showed the trend of A (0kPa) > CK (water layer), B (-15 kPa) > C (-30 kPa), A(0k Pa) compared with CK (water layer), B(-15kPa) and C(-30k Pa) were increased by 3.01%, 12.40%, 18.08%”
Claim · model-written summary
Rice grain yield under soil water potential 0 kPa was increased by 18.08% compared with C(-30k Pa) in saline-alkali soil.
- Taxon
- RiceOryza sativat0
- Treatment
- A(0k Pa)e0
- Outcome
- grain yielde0
- Direction
- increasede0
- Value
- 18.08%e0
- Comparator
- C(-30k Pa)e0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“Rice”
e0“grain yield showed the trend of A (0kPa) > CK (water layer), B (-15 kPa) > C (-30 kPa), A(0k Pa) compared with CK (water layer), B(-15kPa) and C(-30k Pa) were increased by 3.01%, 12.40%, 18.08%”
Claim · model-written summary
Total dry matter accumulation of the 0 kPa treatment was slightly higher than that of CK, with no significant difference.
- Taxon
- RiceOryza sativat0
- Treatment
- A (0 kPa)e1
- Outcome
- total dry matter accumulatione1
- Direction
- slightly highere1
- Comparator
- CKe1
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“Rice”
e1“total dry matter accumulation showed A (0kPa) > CK (water layer), B (-15kPa) > C (-30 kPa), A (0 kPa) is slightly higher than that of CK, no significant differences”
Claim · model-written summary
Total dry matter accumulation differed significantly (p<0.01) between the 0 kPa and CK treatments on one side and the -15 kPa and -30 kPa treatments on the other.
- Taxon
- RiceOryza sativat0
- Outcome
- total dry matter accumulatione2
- Qualifier
- p<0.01e2
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“Rice”
e2“total dry matter accumulation showed A (0kPa) > CK (water layer), B (-15kPa) > C (-30 kPa), A (0 kPa) is slightly higher than that of CK, no significant differences, A(0 kPa), CK(water layer) and B(-15k a), C (-30 kPa) reached a significant differences level (p<0.01)”
Claim · model-written summary
Free proline content in leaves increased in the order B > C > CK > A.
- Taxon
- RiceOryza sativat0
- Organ / stage
- leavese3
- Outcome
- free proline contente3
- Qualifier
- B > C > CK > Ae3
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“Rice”
e3“the increase of free proline content in leaves from high to low in the order of B > C > CK > A”
Claim · model-written summary
Leaf chlorophyll content ranked C > CK > A > B, highest in C and lowest in B.
- Taxon
- RiceOryza sativat0
- Organ / stage
- leavese4
- Outcome
- chlorophyll contente4
- Qualifier
- C> CK > A> Be4
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“Rice”
e4“the chlorophyll content in the leaves was from high to low order C> CK > A> B”
Claim · model-written summary
The highest leaf relative water content (LRWC) was in CK, averaging 49.65% over two years.
- Taxon
- RiceOryza sativat0
- Outcome
- LRWCe5
- Value
- 49.65%e5
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“Rice”
e5“the highest level of LRWC was CK, the average of 49.65% for two years”
Claim · model-written summary
LRWC over two years followed the order CK > A > B > C.
- Taxon
- RiceOryza sativat0
- Outcome
- LRWCe6
- Qualifier
- CK> A> B > Ce6
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“Rice”
e6“the of LRWC for two years showed CK> A> B > C trend”
Claim · model-written summary
Leaf area index (LAI) on September 10, 15 and 20 was basically in the order CK > A > B > C.
- Taxon
- RiceOryza sativat0
- Outcome
- LAIe7
- Qualifier
- CK> A> B> Ce7
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“Rice”
e7“The LAI trend of each treatment on September 10, September 15 and September 20 was basically the order of CK> A> B> C”
Claim · model-written summary
The authors recommend keeping the rice dough-stage field in a moisturizing state (0 kPa) in soda saline-alkali soil.
- Taxon
- RiceOryza sativat0
- Outcome
- moisturizing state (0kPa)e0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“Rice”
e0“The soda saline alkali soil rice dough stage field should be moisturizing state (0kPa)”