Abstract
In this paper,the introgression lines H8 and H10 carrying DNA segments of Alternanthera philoxeroides,recipient of the introgression lines 6527( CK1) and IAPAR9( CK2) were used as tested materials,randomized block experiments were designed,and the physiological characteristics of osmotic adjustment and the content of chlorophyll were studied with 3 upland rice varieties and one common rice control under drought stress. The results showed that( i) The proline content under drought stress in 12 days were significantly greater than that under no drought stress treatment( P 0. 05). Total chlorophyll content,chlorophyll a and chlorophyll b content dropped significantly under drought stress.( ii) Content of proline in drought-tolerant H8 was 14. 16 μg /g higher than that in IAPAR9( CK2)( P 0. 05). The increasing amplitudes of total chlorophyll a,chlorophyll b and total chlorophyll were greater than that in IAPAR9( CK2)( P 0. 05).( iii) The proline content of H8 and IAPAR9 increased greater at the same time,with smaller decreased amplitude on the chlorophyll content. These results would be useful for breeding of rice varieties with drought-tolerant characters.
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Claims 7
Claim · model-written summary
Proline content under drought stress was significantly greater than without drought after 12 days.
- Taxon
- upland rice
Oryza sativae0 - Treatment
- drought stresse2
- Outcome
- proline contente2
- Direction
- greatere2
- Qualifier
- in 12 dayse2
- Comparator
- no drought stress treatmente2
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“studied with 3 upland rice varieties and one common rice control under drought stress”
e2“The proline content under drought stress in 12 days were significantly greater than that under no drought stress treatment”
Claim · model-written summary
Drought-tolerant H8 had 14.16 μg/g more proline than IAPAR9 under drought stress.
- Taxon
- upland riceOryza sativae0
- Material
- H8e3
- Treatment
- drought stresse0
- Outcome
- Content of prolinee3
- Direction
- highere3
- Value
- 14. 16 μg /ge3
- Comparator
- IAPAR9e3
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“studied with 3 upland rice varieties and one common rice control under drought stress”
e3“Content of proline in drought-tolerant H8 was 14. 16 μg /g higher than that in IAPAR9( CK2)”
Claim · model-written summary
Increase amplitudes of total chlorophyll a, chlorophyll b and total chlorophyll under drought were greater than in IAPAR9.
- Taxon
- upland riceOryza sativae0
- Treatment
- drought stresse0
- Outcome
- increasing amplitudes of total chlorophyll a,chlorophyll b and total chlorophylle4
- Direction
- greatere4
- Comparator
- IAPAR9e4
Not reportedMaterial
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“studied with 3 upland rice varieties and one common rice control under drought stress”
e4“The increasing amplitudes of total chlorophyll a,chlorophyll b and total chlorophyll were greater than that in IAPAR9( CK2)”
Claim · model-written summary
Proline content of H8 and IAPAR9 increased greater at the same time under drought stress.
- Taxon
- upland riceOryza sativae0
- Material
- H8 and IAPAR9e5
- Treatment
- drought stresse0
- Outcome
- proline contente5
- Direction
- increased greatere5
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“studied with 3 upland rice varieties and one common rice control under drought stress”
e5“The proline content of H8 and IAPAR9 increased greater at the same time,with smaller decreased amplitude on the chlorophyll content”
Claim · model-written summary
Chlorophyll content declined by a smaller amplitude in H8 and IAPAR9 under drought stress.
- Taxon
- upland riceOryza sativae0
- Material
- H8 and IAPAR9e5
- Treatment
- drought stresse0
- Outcome
- chlorophyll contente5
- Direction
- smaller decreased amplitudee5
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“studied with 3 upland rice varieties and one common rice control under drought stress”
e5“The proline content of H8 and IAPAR9 increased greater at the same time,with smaller decreased amplitude on the chlorophyll content”
Claim · model-written summary
These results would be useful for breeding rice varieties with drought tolerance (authors recommendation).
- Taxon
- rice varietiesOryza sativae6
- Outcome
- breeding of rice varieties with drought-tolerant characterse6
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e6“These results would be useful for breeding of rice varieties with drought-tolerant characters”
Claim · model-written summary
Total chlorophyll, chlorophyll a and chlorophyll b content dropped significantly under drought stress.
- Taxon
- upland riceOryza sativae0
- Treatment
- drought stresse7
- Outcome
- Total chlorophyll content,chlorophyll a and chlorophyll b contente7
- Direction
- droppede7
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“studied with 3 upland rice varieties and one common rice control under drought stress”
e7“Total chlorophyll content,chlorophyll a and chlorophyll b content dropped significantly under drought stress”
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See all 45 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.