Abstract
With Kenjiandao 5 and Kendao 12 as material,the effects of water supply before heading on panicle traits and yield of rice in cold region were studied with potted planting by examining soil water potential(SWP) with negative pressure soil moisture tensiometer.The results indicated: When intermittent irrigation at-8~-10 kPa of SWP was carried out during the stage before heading,panicles per hill of two varieties was decreased,grain number per panicle of two varieties were very significantly decreased;kernel seting rate and 1000-grain weight of two varieties were increased;economic yield of Kenjiandao 5 was increased,while economic yield of Kendao 12 was decreased.When unremitting irrigation at-18~-20 kPa and-28~-30 kPa of SWP was carried out before heading,the panicle length of two varieties were very significantly shortened;the number of primary branches degradation of two varieties were increased;the panicle weight,primary rachis-branches number,second rachis-branches number,panicles per hill,grain number per panicle and 1000-grain weight of two varieties were significantly or very significantly decreased;and economic yield of two varieties were very significantly decreased.Intermittent irrigation at-8~-10 kPa of SWP before heading could be used as irrigating index for producing high yield and high quality rice in cold region,while it is unfavorable to carry out unremitting irrigation below-18~-20 kPa of SWP before heading.
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Claims 17
Claim · model-written summary
Intermittent irrigation decreased panicles per hill.
- Taxon
- rice
Oryza sativat0 - Material
- two varietiese0
- Treatment
- intermittent irrigation at-8~-10 kPa of SWPe0
- Outcome
- panicles per hille0
- Direction
- decreasede0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“When intermittent irrigation at-8~-10 kPa of SWP was carried out during the stage before heading,panicles per hill of two varieties was decreased,grain number per panicle of two varieties were very significantly decreased;kernel seting rate and 1000-grain weight of two varieties were increased;economic yield of Kenjiandao 5 was increased,while economic yield of Kendao 12 was decreased.”
t0“rice”
Claim · model-written summary
Intermittent irrigation decreased grain number per panicle.
- Taxon
- riceOryza sativat0
- Material
- two varietiese0
- Treatment
- intermittent irrigation at-8~-10 kPa of SWPe0
- Outcome
- grain number per paniclee0
- Direction
- decreasede0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“When intermittent irrigation at-8~-10 kPa of SWP was carried out during the stage before heading,panicles per hill of two varieties was decreased,grain number per panicle of two varieties were very significantly decreased;kernel seting rate and 1000-grain weight of two varieties were increased;economic yield of Kenjiandao 5 was increased,while economic yield of Kendao 12 was decreased.”
t0“rice”
Claim · model-written summary
Intermittent irrigation increased kernel seting rate.
- Taxon
- riceOryza sativat0
- Material
- two varietiese0
- Treatment
- intermittent irrigation at-8~-10 kPa of SWPe0
- Outcome
- kernel seting ratee0
- Direction
- increasede0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“When intermittent irrigation at-8~-10 kPa of SWP was carried out during the stage before heading,panicles per hill of two varieties was decreased,grain number per panicle of two varieties were very significantly decreased;kernel seting rate and 1000-grain weight of two varieties were increased;economic yield of Kenjiandao 5 was increased,while economic yield of Kendao 12 was decreased.”
t0“rice”
Claim · model-written summary
Intermittent irrigation increased 1000-grain weight.
- Taxon
- riceOryza sativat0
- Material
- two varietiese0
- Treatment
- intermittent irrigation at-8~-10 kPa of SWPe0
- Outcome
- 1000-grain weighte0
- Direction
- increasede0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“When intermittent irrigation at-8~-10 kPa of SWP was carried out during the stage before heading,panicles per hill of two varieties was decreased,grain number per panicle of two varieties were very significantly decreased;kernel seting rate and 1000-grain weight of two varieties were increased;economic yield of Kenjiandao 5 was increased,while economic yield of Kendao 12 was decreased.”
t0“rice”
Claim · model-written summary
Intermittent irrigation increased economic yield of Kenjiandao 5.
- Taxon
- riceOryza sativat0
- Material
- Kenjiandao 5e0
- Treatment
- intermittent irrigation at-8~-10 kPa of SWPe1
- Outcome
- economic yielde0
- Direction
- increasede0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“economic yield of Kenjiandao 5 was increased,while economic yield of Kendao 12 was decreased”
t0“rice”
e1“intermittent irrigation at-8~-10 kPa of SWP”
Claim · model-written summary
Intermittent irrigation decreased economic yield of Kendao 12.
- Taxon
- riceOryza sativat0
- Material
- Kendao 12e0
- Treatment
- intermittent irrigation at-8~-10 kPa of SWPe1
- Outcome
- economic yielde0
- Direction
- decreasede0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“economic yield of Kenjiandao 5 was increased,while economic yield of Kendao 12 was decreased”
t0“rice”
e1“intermittent irrigation at-8~-10 kPa of SWP”
Claim · model-written summary
Unremitting irrigation decreased panicle length in both varieties.
- Taxon
- riceOryza sativat0
- Material
- two varietiese0
- Treatment
- unremitting irrigation at-18~-20 kPa and-28~-30 kPa of SWPe0
- Outcome
- panicle lengthe0
- Direction
- shortenede0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“When unremitting irrigation at-18~-20 kPa and-28~-30 kPa of SWP was carried out before heading,the panicle length of two varieties were very significantly shortened;the number of primary branches degradation of two varieties were increased;the panicle weight,primary rachis-branches number,second rachis-branches number,panicles per hill,grain number per panicle and 1000-grain weight of two varieties were significantly or very significantly decreased;and economic yield of two varieties were very significantly decreased.”
t0“rice”
Claim · model-written summary
Unremitting irrigation decreased panicle weight in both varieties.
- Taxon
- riceOryza sativat0
- Material
- two varietiese0
- Treatment
- unremitting irrigation at-18~-20 kPa and-28~-30 kPa of SWPe0
- Outcome
- panicle weighte0
- Direction
- decreasede0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“When unremitting irrigation at-18~-20 kPa and-28~-30 kPa of SWP was carried out before heading,the panicle length of two varieties were very significantly shortened;the number of primary branches degradation of two varieties were increased;the panicle weight,primary rachis-branches number,second rachis-branches number,panicles per hill,grain number per panicle and 1000-grain weight of two varieties were significantly or very significantly decreased;and economic yield of two varieties were very significantly decreased.”
t0“rice”
Claim · model-written summary
Unremitting irrigation decreased primary rachis-branches number in both varieties.
- Taxon
- riceOryza sativat0
- Material
- two varietiese0
- Treatment
- unremitting irrigation at-18~-20 kPa and-28~-30 kPa of SWPe0
- Outcome
- primary rachis-branches numbere0
- Direction
- decreasede0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“When unremitting irrigation at-18~-20 kPa and-28~-30 kPa of SWP was carried out before heading,the panicle length of two varieties were very significantly shortened;the number of primary branches degradation of two varieties were increased;the panicle weight,primary rachis-branches number,second rachis-branches number,panicles per hill,grain number per panicle and 1000-grain weight of two varieties were significantly or very significantly decreased;and economic yield of two varieties were very significantly decreased.”
t0“rice”
Claim · model-written summary
Unremitting irrigation decreased second rachis-branches number in both varieties.
- Taxon
- riceOryza sativat0
- Material
- two varietiese0
- Treatment
- unremitting irrigation at-18~-20 kPa and-28~-30 kPa of SWPe0
- Outcome
- second rachis-branches numbere0
- Direction
- decreasede0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“When unremitting irrigation at-18~-20 kPa and-28~-30 kPa of SWP was carried out before heading,the panicle length of two varieties were very significantly shortened;the number of primary branches degradation of two varieties were increased;the panicle weight,primary rachis-branches number,second rachis-branches number,panicles per hill,grain number per panicle and 1000-grain weight of two varieties were significantly or very significantly decreased;and economic yield of two varieties were very significantly decreased.”
t0“rice”
Claim · model-written summary
Unremitting irrigation decreased panicles per hill in both varieties.
- Taxon
- riceOryza sativat0
- Material
- two varietiese0
- Treatment
- unremitting irrigation at-18~-20 kPa and-28~-30 kPa of SWPe0
- Outcome
- panicles per hille0
- Direction
- decreasede0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“When unremitting irrigation at-18~-20 kPa and-28~-30 kPa of SWP was carried out before heading,the panicle length of two varieties were very significantly shortened;the number of primary branches degradation of two varieties were increased;the panicle weight,primary rachis-branches number,second rachis-branches number,panicles per hill,grain number per panicle and 1000-grain weight of two varieties were significantly or very significantly decreased;and economic yield of two varieties were very significantly decreased.”
t0“rice”
Claim · model-written summary
Unremitting irrigation decreased grain number per panicle in both varieties.
- Taxon
- riceOryza sativat0
- Material
- two varietiese0
- Treatment
- unremitting irrigation at-18~-20 kPa and-28~-30 kPa of SWPe0
- Outcome
- grain number per paniclee0
- Direction
- decreasede0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“When unremitting irrigation at-18~-20 kPa and-28~-30 kPa of SWP was carried out before heading,the panicle length of two varieties were very significantly shortened;the number of primary branches degradation of two varieties were increased;the panicle weight,primary rachis-branches number,second rachis-branches number,panicles per hill,grain number per panicle and 1000-grain weight of two varieties were significantly or very significantly decreased;and economic yield of two varieties were very significantly decreased.”
t0“rice”
Claim · model-written summary
Unremitting irrigation decreased 1000-grain weight in both varieties.
- Taxon
- riceOryza sativat0
- Material
- two varietiese0
- Treatment
- unremitting irrigation at-18~-20 kPa and-28~-30 kPa of SWPe0
- Outcome
- 1000-grain weighte0
- Direction
- decreasede0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“When unremitting irrigation at-18~-20 kPa and-28~-30 kPa of SWP was carried out before heading,the panicle length of two varieties were very significantly shortened;the number of primary branches degradation of two varieties were increased;the panicle weight,primary rachis-branches number,second rachis-branches number,panicles per hill,grain number per panicle and 1000-grain weight of two varieties were significantly or very significantly decreased;and economic yield of two varieties were very significantly decreased.”
t0“rice”
Claim · model-written summary
Unremitting irrigation decreased economic yield in both varieties.
- Taxon
- riceOryza sativat0
- Material
- two varietiese0
- Treatment
- unremitting irrigation at-18~-20 kPa and-28~-30 kPa of SWPe0
- Outcome
- economic yielde0
- Direction
- decreasede0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“When unremitting irrigation at-18~-20 kPa and-28~-30 kPa of SWP was carried out before heading,the panicle length of two varieties were very significantly shortened;the number of primary branches degradation of two varieties were increased;the panicle weight,primary rachis-branches number,second rachis-branches number,panicles per hill,grain number per panicle and 1000-grain weight of two varieties were significantly or very significantly decreased;and economic yield of two varieties were very significantly decreased.”
t0“rice”
Claim · model-written summary
Unremitting irrigation increased primary branch degradation.
- Taxon
- riceOryza sativat0
- Material
- two varietiese0
- Treatment
- unremitting irrigation at-18~-20 kPa and-28~-30 kPa of SWPe0
- Outcome
- number of primary branches degradatione0
- Direction
- increasede0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“When unremitting irrigation at-18~-20 kPa and-28~-30 kPa of SWP was carried out before heading,the panicle length of two varieties were very significantly shortened;the number of primary branches degradation of two varieties were increased”
t0“rice”
Claim · model-written summary
Use intermittent irrigation at -8 to -10 kPa before heading for high yield and quality rice.
- Taxon
- riceOryza sativat0
- Treatment
- Intermittent irrigation at-8~-10 kPa of SWP before headinge0
- Outcome
- irrigating index for producing high yield and high quality ricee0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Intermittent irrigation at-8~-10 kPa of SWP before heading could be used as irrigating index for producing high yield and high quality rice in cold region”
t0“rice”
Claim · model-written summary
Avoid unremitting irrigation below -18 to -20 kPa before heading.
- Taxon
- riceOryza sativat0
- Outcome
- unfavorable to carry out unremitting irrigation below-18~-20 kPa of SWP before headinge0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“it is unfavorable to carry out unremitting irrigation below-18~-20 kPa of SWP before heading”
t0“rice”
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