Abstract
In order to provide scientific strategies of water and nitrogen regulation, the effects of different amount of watering and nitrogen rate by means of drip irrigation on root/shoot growth and matter distribution in wheat were studied by using methods of soil drill sampling and growth analysis. The results indicated that reducing drip irrigation amounts and nitrogen rate would cause root weight decreased, shoot growth reduced and yield dropped. In water deficit irrigation treatments (2400 m3/ha), root length and root surface area increased in flowering stage, but rapid declined in milking stage, that severely hampered leaf growth and grain grouting. In milking stage, appropriate irrigation amount (3600 m3/ha) could maintain higher root weight, root length and root diameter that promoted root/shoot coordinated growing. Nitrogen deficiency significantly reduced dry matter accumulation amount of stem in flowering stage and root length and root surface area in milking stage, that was not conductive to the extension and fulfilling of roots functions and leaded to canopy severely premature aging. High nitrogen supply (urea 450 kg/ha) would cause vigorously growing of shoot and declining of the growth quality of spike and decreasing of the economic coefficient. Water and nitrogen had significant collaborative compensation effects on root/shoot growth and yield traits and the effects of regulating water by nitrogen supply on root traits was larger than on shoot, while regulating nitrogen by water supply on shoot traits was larger than on root, so in actual production, it was necessary to maintain a high level of nitrogen supply in flowering stage but a appropriate level of water supply in milking stage. The drip irrigation amounts and nitrogen rate and yield components indicators in high-yielding drip irrigation wheat field were put forward by analyzing quadratic polynomial equation built by the data of water and nitrogen two factors field experiments.
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Claims 19
Claim · model-written summary
Reducing drip irrigation and nitrogen rate decreased root weight in wheat.
- Taxon
- wheat
Triticum aestivume0 - Treatment
- reducing drip irrigation amounts and nitrogen ratee1
- Outcome
- root weighte1
- Direction
- decreasede1
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“on root/shoot growth and matter distribution in wheat were studied”
e1“reducing drip irrigation amounts and nitrogen rate would cause root weight decreased, shoot growth reduced and yield dropped”
Claim · model-written summary
Reducing drip irrigation and nitrogen rate reduced shoot growth in wheat.
- Taxon
- wheatTriticum aestivume0
- Treatment
- reducing drip irrigation amounts and nitrogen ratee1
- Outcome
- shoot growthe1
- Direction
- reducede1
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“on root/shoot growth and matter distribution in wheat were studied”
e1“reducing drip irrigation amounts and nitrogen rate would cause root weight decreased, shoot growth reduced and yield dropped”
Claim · model-written summary
Reducing drip irrigation and nitrogen rate dropped wheat yield.
- Taxon
- wheatTriticum aestivume0
- Treatment
- reducing drip irrigation amounts and nitrogen ratee1
- Outcome
- yielde1
- Direction
- droppede1
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“on root/shoot growth and matter distribution in wheat were studied”
e1“reducing drip irrigation amounts and nitrogen rate would cause root weight decreased, shoot growth reduced and yield dropped”
Claim · model-written summary
Under water deficit irrigation, root length and root surface area increased at flowering.
- Taxon
- wheatTriticum aestivume0
- Organ / stage
- flowering stagee2
- Treatment
- water deficit irrigation treatments (2400 m3/ha)e2
- Outcome
- root length and root surface areae2
- Direction
- increasede2
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“on root/shoot growth and matter distribution in wheat were studied”
e2“In water deficit irrigation treatments (2400 m3/ha), root length and root surface area increased in flowering stage, but rapid declined in milking stage”
Claim · model-written summary
Under water deficit irrigation, root length and root surface area rapidly declined at milking.
- Taxon
- wheatTriticum aestivume0
- Organ / stage
- milking stagee2
- Treatment
- water deficit irrigation treatments (2400 m3/ha)e2
- Outcome
- root length and root surface areae2
- Direction
- rapid declinede2
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“on root/shoot growth and matter distribution in wheat were studied”
e2“In water deficit irrigation treatments (2400 m3/ha), root length and root surface area increased in flowering stage, but rapid declined in milking stage”
Claim · model-written summary
Under water deficit irrigation, the decline at milking severely hampered leaf growth and grain grouting.
- Taxon
- wheatTriticum aestivume0
- Treatment
- water deficit irrigation treatments (2400 m3/ha)e2
- Outcome
- leaf growth and grain groutinge3
- Direction
- severely hamperede3
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“on root/shoot growth and matter distribution in wheat were studied”
e2“In water deficit irrigation treatments (2400 m3/ha), root length and root surface area increased in flowering stage, but rapid declined in milking stage”
e3“that severely hampered leaf growth and grain grouting”
Claim · model-written summary
Appropriate irrigation (3600 m3/ha) at milking maintained higher root weight, root length and root diameter.
- Taxon
- wheatTriticum aestivume0
- Organ / stage
- milking stagee4
- Treatment
- appropriate irrigation amount (3600 m3/ha)e4
- Outcome
- root weight, root length and root diametere4
- Direction
- highere4
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“on root/shoot growth and matter distribution in wheat were studied”
e4“In milking stage, appropriate irrigation amount (3600 m3/ha) could maintain higher root weight, root length and root diameter that promoted root/shoot coordinated growing”
Claim · model-written summary
Nitrogen deficiency significantly reduced stem dry matter accumulation at flowering.
- Taxon
- wheatTriticum aestivume0
- Organ / stage
- flowering stagee5
- Treatment
- Nitrogen deficiencye5
- Outcome
- dry matter accumulation amount of steme5
- Direction
- reducede5
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“on root/shoot growth and matter distribution in wheat were studied”
e5“Nitrogen deficiency significantly reduced dry matter accumulation amount of stem in flowering stage and root length and root surface area in milking stage”
Claim · model-written summary
Nitrogen deficiency significantly reduced root length and root surface area at milking.
- Taxon
- wheatTriticum aestivume0
- Organ / stage
- milking stagee5
- Treatment
- Nitrogen deficiencye5
- Outcome
- root length and root surface areae5
- Direction
- reducede5
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“on root/shoot growth and matter distribution in wheat were studied”
e5“Nitrogen deficiency significantly reduced dry matter accumulation amount of stem in flowering stage and root length and root surface area in milking stage”
Claim · model-written summary
Nitrogen deficiency led to severely premature canopy aging.
- Taxon
- wheatTriticum aestivume0
- Treatment
- Nitrogen deficiencye5
- Outcome
- canopy severely premature aginge6
Not reportedComparatorDirection
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“on root/shoot growth and matter distribution in wheat were studied”
e5“Nitrogen deficiency significantly reduced dry matter accumulation amount of stem in flowering stage and root length and root surface area in milking stage”
e6“leaded to canopy severely premature aging”
Claim · model-written summary
High nitrogen supply (urea 450 kg/ha) caused vigorous growth of shoot.
- Taxon
- wheatTriticum aestivume0
- Treatment
- High nitrogen supply (urea 450 kg/ha)e7
- Outcome
- growing of shoote7
- Direction
- vigorously growinge7
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“on root/shoot growth and matter distribution in wheat were studied”
e7“High nitrogen supply (urea 450 kg/ha) would cause vigorously growing of shoot and declining of the growth quality of spike and decreasing of the economic coefficient”
Claim · model-written summary
High nitrogen supply (urea 450 kg/ha) declined the growth quality of spike.
- Taxon
- wheatTriticum aestivume0
- Treatment
- High nitrogen supply (urea 450 kg/ha)e7
- Outcome
- growth quality of spikee7
- Direction
- declininge7
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“on root/shoot growth and matter distribution in wheat were studied”
e7“High nitrogen supply (urea 450 kg/ha) would cause vigorously growing of shoot and declining of the growth quality of spike and decreasing of the economic coefficient”
Claim · model-written summary
High nitrogen supply (urea 450 kg/ha) decreased the economic coefficient.
- Taxon
- wheatTriticum aestivume0
- Treatment
- High nitrogen supply (urea 450 kg/ha)e7
- Outcome
- economic coefficiente7
- Direction
- decreasinge7
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“on root/shoot growth and matter distribution in wheat were studied”
e7“High nitrogen supply (urea 450 kg/ha) would cause vigorously growing of shoot and declining of the growth quality of spike and decreasing of the economic coefficient”
Claim · model-written summary
Water and nitrogen had significant collaborative compensation effects on root/shoot growth and yield traits.
- Taxon
- wheatTriticum aestivume0
- Treatment
- Water and nitrogene6
- Outcome
- root/shoot growth and yield traitse6
Not reportedDirection
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“on root/shoot growth and matter distribution in wheat were studied”
e6“Water and nitrogen had significant collaborative compensation effects on root/shoot growth and yield traits”
Claim · model-written summary
Regulating water by nitrogen supply affected root traits more than shoot traits.
- Taxon
- wheatTriticum aestivume0
- Treatment
- regulating water by nitrogen supplye7
- Outcome
- root traitse7
- Direction
- largere7
- Comparator
- shoote7
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“on root/shoot growth and matter distribution in wheat were studied”
e7“the effects of regulating water by nitrogen supply on root traits was larger than on shoot, while regulating nitrogen by water supply on shoot traits was larger than on root”
Claim · model-written summary
Regulating nitrogen by water supply affected shoot traits more than root traits.
- Taxon
- wheatTriticum aestivume0
- Treatment
- regulating nitrogen by water supplye7
- Outcome
- shoot traitse7
- Direction
- largere7
- Comparator
- roote7
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“on root/shoot growth and matter distribution in wheat were studied”
e7“the effects of regulating water by nitrogen supply on root traits was larger than on shoot, while regulating nitrogen by water supply on shoot traits was larger than on root”
Claim · model-written summary
A high level of nitrogen supply in flowering stage should be maintained in wheat production.
- Taxon
- wheatTriticum aestivume0
- Outcome
- maintain a high level of nitrogen supply in flowering stagee6
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“on root/shoot growth and matter distribution in wheat were studied”
e6“it was necessary to maintain a high level of nitrogen supply in flowering stage but a appropriate level of water supply in milking stage”
Claim · model-written summary
An appropriate level of water supply in milking stage should be maintained in wheat production.
- Taxon
- wheatTriticum aestivume0
- Outcome
- appropriate level of water supply in milking stagee6
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“on root/shoot growth and matter distribution in wheat were studied”
e6“it was necessary to maintain a high level of nitrogen supply in flowering stage but a appropriate level of water supply in milking stage”
Claim · model-written summary
Drip irrigation amounts and nitrogen rate are recommended for high-yielding drip irrigation wheat fields.
- Taxon
- wheatTriticum aestivume6
- Outcome
- drip irrigation amounts and nitrogen ratee6
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e6“The drip irrigation amounts and nitrogen rate and yield components indicators in high-yielding drip irrigation wheat field were put forward”
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