Abstract
To investigate the genotypic differences of dry matter (DM) and nitrogen (N) accumulation and remobilization as well as the photosynthetic characteristics of flag leaf during grain filling under water-limited conditions, nine winter wheat cultivars were planted under two irrigation treatments including W0 (no irrigation applied during spring) and W2 (1500 m3 ha−1 applied 50% at stem elongation and 50% at anthesis). Results showed that cultivar and irrigation significantly affected the accumulation and remobilization of DM and N as well as the photosynthetic characteristics of flag leaf. No irrigation in spring on average decreased the photosynthetic rate of flag leaf, accelerated leaf senescence, and consequently decreased the accumulation of DM and N, but increased the ear distribution ratio and the remobilization and contribution of DM and N in leaf and stem to grain. Maintaining high photosynthetic activity and promoting DM and N distribution in ear and the remobilization of DM and N in leaf and stem may lead to higher grain filling rate and lower yield loss under water-limited conditions in North China Plain.
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Claims 8
Claim · model-written summary
Cultivar and irrigation significantly affected the accumulation and remobilization of dry matter and nitrogen in winter wheat.
- Taxon
- wheat
Triticum aestivumt0 - Treatment
- irrigatione1
- Outcome
- accumulation and remobilization of DM and Ne1
Not reportedDirection
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“in wheat as affected by genotype and irrigation”
e1“cultivar and irrigation significantly affected the accumulation and remobilization of DM and N”
Claim · model-written summary
No irrigation in spring decreased the photosynthetic rate of flag leaf in winter wheat.
- Taxon
- wheatTriticum aestivumt0
- Organ / stage
- flag leafe2
- Treatment
- No irrigation in springe2
- Outcome
- photosynthetic rate of flag leafe2
- Direction
- decreasede2
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“in wheat as affected by genotype and irrigation”
e2“No irrigation in spring on average decreased the photosynthetic rate of flag leaf, accelerated leaf senescence, and consequently decreased the accumulation of DM and N”
Claim · model-written summary
No irrigation in spring accelerated leaf senescence in winter wheat.
- Taxon
- wheatTriticum aestivumt0
- Treatment
- No irrigation in springe2
- Outcome
- leaf senescencee2
- Direction
- acceleratede2
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“in wheat as affected by genotype and irrigation”
e2“No irrigation in spring on average decreased the photosynthetic rate of flag leaf, accelerated leaf senescence, and consequently decreased the accumulation of DM and N”
Claim · model-written summary
No irrigation in spring decreased the accumulation of dry matter and nitrogen in winter wheat.
- Taxon
- wheatTriticum aestivumt0
- Treatment
- No irrigation in springe2
- Outcome
- accumulation of DM and Ne2
- Direction
- decreasede2
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“in wheat as affected by genotype and irrigation”
e2“No irrigation in spring on average decreased the photosynthetic rate of flag leaf, accelerated leaf senescence, and consequently decreased the accumulation of DM and N”
Claim · model-written summary
No irrigation in spring increased the ear distribution ratio of dry matter and nitrogen in winter wheat.
- Taxon
- wheatTriticum aestivumt0
- Treatment
- No irrigation in springe2
- Outcome
- ear distribution ratioe3
- Direction
- increasede3
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“in wheat as affected by genotype and irrigation”
e2“No irrigation in spring on average decreased the photosynthetic rate of flag leaf, accelerated leaf senescence, and consequently decreased the accumulation of DM and N”
e3“but increased the ear distribution ratio and the remobilization and contribution of DM and N in leaf and stem to grain”
Claim · model-written summary
No irrigation in spring increased the remobilization and contribution of dry matter and nitrogen from leaf and stem to grain in winter wheat.
- Taxon
- wheatTriticum aestivumt0
- Organ / stage
- leaf and steme3
- Treatment
- No irrigation in springe2
- Outcome
- remobilization and contribution of DM and Ne3
- Direction
- increasede3
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“in wheat as affected by genotype and irrigation”
e2“No irrigation in spring on average decreased the photosynthetic rate of flag leaf, accelerated leaf senescence, and consequently decreased the accumulation of DM and N”
e3“but increased the ear distribution ratio and the remobilization and contribution of DM and N in leaf and stem to grain”
Claim · model-written summary
Maintaining high photosynthetic activity and promoting DM and N distribution to the ear may lead to a higher grain filling rate under water-limited conditions in the North China Plain.
- Taxon
- wheatTriticum aestivumt0
- Outcome
- grain filling ratee4
- Direction
- highere4
- Qualifier
- Maintaining high photosynthetic activitye4
- Setting
- North China Plaine4
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“in wheat as affected by genotype and irrigation”
e4“Maintaining high photosynthetic activity and promoting DM and N distribution in ear and the remobilization of DM and N in leaf and stem may lead to higher grain filling rate and lower yield loss under water-limited conditions in North China Plain”
Claim · model-written summary
Maintaining high photosynthetic activity and promoting DM and N distribution to the ear may lead to lower yield loss under water-limited conditions in the North China Plain.
- Taxon
- wheatTriticum aestivumt0
- Outcome
- yield losse4
- Direction
- lowere4
- Qualifier
- Maintaining high photosynthetic activitye4
- Setting
- North China Plaine4
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“in wheat as affected by genotype and irrigation”
e4“Maintaining high photosynthetic activity and promoting DM and N distribution in ear and the remobilization of DM and N in leaf and stem may lead to higher grain filling rate and lower yield loss under water-limited conditions in North China Plain”
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See all 242 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.