Abstract
ABSTRACT Waterlogging during the anthesis, exacerbated by continuous rainy weather and heavy soil, has become a primary limiting factor affecting wheat yield in southern China's rice‐wheat rotation regions. Previous research indicates that utilizing exogenous 6‐benzylaminopurine (6‐BA) can effectively alleviate the adverse effects of continuous rain on wheat yield, while the fundamental process is yet to be fully understood. In this research, two wheat varieties with contrasting waterlogging sensitivities were selected, which were exposed to waterlogging and shading for 7, 11, and 15 days after anthesis. Subsequently, three different concentrations of 6‐BA solution (15, 25, and 35 mg L −1 ) were applied through spraying. The application of 6‐BA significantly increased the total soluble sugar and starch content in grains during the filling process, as well as enhanced the activities of starch synthesis‐related enzymes: sucrose synthase (SuS, EC 2.4.1.13), ADP‐glucose pyrophosphorylase (AGPase, EC 2.7.7.21), and starch phosphorylase (Pho, EC 2.4.1.1). Moreover, the application of 6‐BA notably enhanced the transfer and transport rate for non‐structural carbohydrates (NSC) in the stem and sheath. It resulted in a notable increase in the distribution ratio of dry matter in the grain, ultimately leading to higher grain weight and yield. Applying 6‐BA through spraying mitigated the adverse effects of waterlogging and shading on starch accumulation and dry matter transport in grains, thereby improving grain weight. The most effective concentration in this experiment was 25 mg L −1 .
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Claims 7
Claim · model-written summary
Application of 6‐BA significantly increased total soluble sugar and starch content in grains during the filling process.
- Taxon
- wheat
Triticum aestivume0 - Organ / stage
- grains during the filling processe1
- Treatment
- application of 6‐BAe1
- Outcome
- total soluble sugar and starch content in grainse1
- Direction
- increasede1
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“two wheat varieties with contrasting waterlogging sensitivities”
e1“The application of 6‐BA significantly increased the total soluble sugar and starch content in grains during the filling process”
Claim · model-written summary
Application of 6‐BA enhanced the activities of starch synthesis enzymes including sucrose synthase.
- Taxon
- wheatTriticum aestivume0
- Treatment
- application of 6‐BAe2
- Gene
- sucrose synthasee3
- Outcome
- activities of starch synthesis‐related enzymese3
- Direction
- enhancede3
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“two wheat varieties with contrasting waterlogging sensitivities”
e2“the application of 6‐BA notably enhanced the transfer and transport rate for non‐structural carbohydrates (NSC) in the stem and sheath”
e3“enhanced the activities of starch synthesis‐related enzymes: sucrose synthase (SuS, EC 2.4.1.13), ADP‐glucose pyrophosphorylase (AGPase, EC 2.7.7.21), and starch phosphorylase (Pho, EC 2.4.1.1)”
Claim · model-written summary
Application of 6‐BA enhanced the transfer and transport rate of non-structural carbohydrates in the stem and sheath.
- Taxon
- wheatTriticum aestivume0
- Organ / stage
- stem and sheathe2
- Treatment
- application of 6‐BAe2
- Outcome
- transfer and transport rate for non‐structural carbohydrates (NSC)e2
- Direction
- enhancede2
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“two wheat varieties with contrasting waterlogging sensitivities”
e2“the application of 6‐BA notably enhanced the transfer and transport rate for non‐structural carbohydrates (NSC) in the stem and sheath”
Claim · model-written summary
Application of 6‐BA increased the distribution ratio of dry matter in the grain.
- Taxon
- wheatTriticum aestivume0
- Organ / stage
- graine4
- Treatment
- application of 6‐BAe2
- Outcome
- distribution ratio of dry matter in the graine4
- Direction
- increasee4
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“two wheat varieties with contrasting waterlogging sensitivities”
e2“the application of 6‐BA notably enhanced the transfer and transport rate for non‐structural carbohydrates (NSC) in the stem and sheath”
e4“It resulted in a notable increase in the distribution ratio of dry matter in the grain, ultimately leading to higher grain weight and yield”
Claim · model-written summary
Application of 6‐BA led to higher grain weight and yield.
- Taxon
- wheatTriticum aestivume0
- Treatment
- application of 6‐BAe2
- Outcome
- grain weight and yielde4
- Direction
- highere4
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“two wheat varieties with contrasting waterlogging sensitivities”
e2“the application of 6‐BA notably enhanced the transfer and transport rate for non‐structural carbohydrates (NSC) in the stem and sheath”
e4“It resulted in a notable increase in the distribution ratio of dry matter in the grain, ultimately leading to higher grain weight and yield”
Claim · model-written summary
Spraying 6‐BA mitigated the adverse effects of waterlogging and shading on starch accumulation and dry matter transport in grains.
- Taxon
- wheatTriticum aestivume0
- Treatment
- Applying 6‐BA through sprayinge5
- Outcome
- starch accumulation and dry matter transport in grainse5
- Direction
- mitigatede5
- Comparator
- waterlogging and shadinge5
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“two wheat varieties with contrasting waterlogging sensitivities”
e5“Applying 6‐BA through spraying mitigated the adverse effects of waterlogging and shading on starch accumulation and dry matter transport in grains, thereby improving grain weight”
Claim · model-written summary
The most effective 6‐BA concentration in this experiment was 25 mg L −1.
- Taxon
- wheatTriticum aestivume0
- Outcome
- most effective concentratione6
- Value
- 25 mg L −1e6
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“two wheat varieties with contrasting waterlogging sensitivities”
e6“The most effective concentration in this experiment was 25 mg L −1”
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