Abstract
Development of wheat root system in soil under field condition is an indispensable parameter,which could quantify accurately the reaction between vegetation and climate and provide references for scientific management of wheat production and development of water saving agriculture. Using a large root monitoring system at Gucheng ecological environment and agriculturual observation station,roots of wheat species NO. 22 Jimaiwere observated,including root length,root length density,root dry-weight density and root diameter. Vertical distributions of roots were analyzed. The results indicate that the root length and root dry-weight decrease with increase of soil depth. There are four different treatments in this experiment,i. e. severe drought,light / middle drought,suitable moisture and heavy moisture. Correlation coefficients of root lengths between four treatments and a control experiment are 0. 91,0. 29,0. 90 and 0. 86 respectively. Root growth can be affected by soil moisture conditions. It is conducive to increase the amount of wheat root in upper layers and root biomass under sufficient soil water condition,while the inverse is true under water stress. Light drought is favorable to extend wheat roots in middle / lower layer soil. Root length density and root dry-weight density have a significant positive linear correlation in various soil depths. Root diameter decreases with increase of soil depth.
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Claims 11
Claim · model-written summary
root length decreased with increasing soil depth.
- Taxon
- winter wheat
Triticum aestivumt0 - Outcome
- root lengthe0
- Direction
- decreasee0
- Setting
- soil depthe0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“The results indicate that the root length and root dry-weight decrease with increase of soil depth.”
t0“winter wheat”
Claim · model-written summary
root dry-weight decreased with increasing soil depth.
- Taxon
- winter wheatTriticum aestivumt0
- Outcome
- root dry-weighte0
- Direction
- decreasee0
- Setting
- soil depthe0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“The results indicate that the root length and root dry-weight decrease with increase of soil depth.”
t0“winter wheat”
Claim · model-written summary
Root length correlation with control under severe drought was 0. 91.
- Taxon
- winter wheatTriticum aestivumt0
- Treatment
- severe droughte0
- Outcome
- Correlation coefficients of root lengthse0
- Value
- 0. 91e0
- Comparator
- control experimente0
Not reportedDirection
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“There are four different treatments in this experiment,i. e. severe drought,light / middle drought,suitable moisture and heavy moisture. Correlation coefficients of root lengths between four treatments and a control experiment are 0. 91,0. 29,0. 90 and 0. 86 respectively.”
t0“winter wheat”
Claim · model-written summary
Root length correlation with control under light / middle drought was 0. 29.
- Taxon
- winter wheatTriticum aestivumt0
- Treatment
- light / middle droughte0
- Outcome
- Correlation coefficients of root lengthse0
- Value
- 0. 29e0
- Comparator
- control experimente0
Not reportedDirection
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“There are four different treatments in this experiment,i. e. severe drought,light / middle drought,suitable moisture and heavy moisture. Correlation coefficients of root lengths between four treatments and a control experiment are 0. 91,0. 29,0. 90 and 0. 86 respectively.”
t0“winter wheat”
Claim · model-written summary
Root length correlation with control under suitable moisture was 0. 90.
- Taxon
- winter wheatTriticum aestivumt0
- Treatment
- suitable moisturee0
- Outcome
- Correlation coefficients of root lengthse0
- Value
- 0. 90e0
- Comparator
- control experimente0
Not reportedDirection
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“There are four different treatments in this experiment,i. e. severe drought,light / middle drought,suitable moisture and heavy moisture. Correlation coefficients of root lengths between four treatments and a control experiment are 0. 91,0. 29,0. 90 and 0. 86 respectively.”
t0“winter wheat”
Claim · model-written summary
Root length correlation with control under heavy moisture was 0. 86.
- Taxon
- winter wheatTriticum aestivumt0
- Treatment
- heavy moisturee0
- Outcome
- Correlation coefficients of root lengthse0
- Value
- 0. 86e0
- Comparator
- control experimente0
Not reportedDirection
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“There are four different treatments in this experiment,i. e. severe drought,light / middle drought,suitable moisture and heavy moisture. Correlation coefficients of root lengths between four treatments and a control experiment are 0. 91,0. 29,0. 90 and 0. 86 respectively.”
t0“winter wheat”
Claim · model-written summary
Sufficient soil water increased wheat roots in upper layers and root biomass.
- Taxon
- wheatTriticum aestivume0
- Outcome
- amount of wheat root in upper layers and root biomasse0
- Direction
- increasee0
- Setting
- sufficient soil water conditione0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“It is conducive to increase the amount of wheat root in upper layers and root biomass under sufficient soil water condition,while the inverse is true under water stress.”
Claim · model-written summary
Water stress had the inverse effect on upper layer wheat roots and root biomass.
- Taxon
- wheatTriticum aestivume0
- Outcome
- amount of wheat root in upper layers and root biomasse0
- Direction
- decreaseinferrede0
- Setting
- water stresse0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“It is conducive to increase the amount of wheat root in upper layers and root biomass under sufficient soil water condition,while the inverse is true under water stress.”
Claim · model-written summary
Light drought favored wheat root extension in middle and lower soil layers.
- Taxon
- wheatTriticum aestivume0
- Treatment
- Light droughte0
- Outcome
- extend wheat rootse0
- Direction
- extende0
- Setting
- middle / lower layer soile0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Light drought is favorable to extend wheat roots in middle / lower layer soil.”
Claim · model-written summary
Root length and dry weight density had a significant positive linear correlation.
- Taxon
- winter wheatTriticum aestivumt0
- Outcome
- Root length density and root dry-weight densitye0
- Direction
- positivee0
- Setting
- various soil depthse0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Root length density and root dry-weight density have a significant positive linear correlation in various soil depths.”
t0“winter wheat”
Claim · model-written summary
Root diameter decreased with soil depth.
- Taxon
- winter wheatTriticum aestivumt0
- Outcome
- Root diametere0
- Direction
- decreasese0
- Setting
- soil depthe0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Root diameter decreases with increase of soil depth.”
t0“winter wheat”