Abstract
Field experiments were conducted in a randomized complete block design with Baguixiang and Guihuazhan as materials under three sowing date to investigate the relationship between post-anthesis carbon and nitrogen remobilization and grain growth of high quality indica rice after flowering in 2009.Results indicated that grain growth was closely correlated with carbon and nitrogen remobilization under three different sowing date conditions.(1)Initial grain filling potential was significant positive correlated with dry matter remobilization rate and efficiency of culm and sheath;maximum grain filling rate,active filling period and active grain filling duration were significant positive correlated with leaf dry matter remobilization rate and efficiency after flowering and significant negative correlated with clum and sheath.(2)Delayed sowing date was not beneficial to the carbon assimilation in stem and sheath remobilization to the panicle.The contribution rate of the remobilization of carbon assimilation of culm and sheath to grain yield and starch yield which was far more than leaf blade was starchsugarsucrose.The contribution rate of the remobilization of carbon assimilation of the soluble sugar to grain yield and starch yield was SD1SD2SD3.The soluble sugars accumulation of stem and leaf reduced along with the increase in grain amylose content and accumulation increased.The rapid decline period(after flowering 3～12 d)of soluble sugar accumulation in leaves was synchronized with the rapid increase amylose content and accumulation period(after flowering 6～12 d).(3)The sowing date postpones reduced the accumulation of total nitrogen of culm and sheath and leaf,grain nitrogen harvest index decreased,but the delay in sowing date protein nitrogen accumulation was increased culm and sheath and leaf.
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Claims 9
Claim · model-written summary
Initial grain filling potential correlated positively with dry matter remobilization rate and efficiency of culm and sheath.
- Taxon
- indica rice
Oryza sativa Indica Groupe1 - Organ / stage
- culm and sheathe0
- Outcome
- Initial grain filling potentiale0
- Direction
- positivee0
- Qualifier
- dry matter remobilization rate and efficiencye0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Initial grain filling potential was significant positive correlated with dry matter remobilization rate and efficiency of culm and sheath”
e1“high quality indica rice”
Claim · model-written summary
Maximum grain filling rate, active filling period and active grain filling duration correlated positively with leaf dry matter remobilization.
- Taxon
- indica riceOryza sativa Indica Groupe1
- Organ / stage
- leafe0
- Outcome
- maximum grain filling rate,active filling period and active grain filling duratione0
- Direction
- positivee0
- Qualifier
- dry matter remobilization rate and efficiencye0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“maximum grain filling rate,active filling period and active grain filling duration were significant positive correlated with leaf dry matter remobilization rate and efficiency after flowering”
e1“high quality indica rice”
Claim · model-written summary
Maximum grain filling rate and active filling measures correlated negatively with culm and sheath remobilization.
- Taxon
- indica riceOryza sativa Indica Groupe1
- Organ / stage
- clum and sheathe0
- Outcome
- maximum grain filling rate,active filling period and active grain filling duratione0
- Direction
- negativee0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“maximum grain filling rate,active filling period and active grain filling duration were significant positive correlated with leaf dry matter remobilization rate and efficiency after flowering and significant negative correlated with clum and sheath”
e1“high quality indica rice”
Claim · model-written summary
Delayed sowing was unfavorable to remobilization of stem and sheath carbon assimilation to the panicle.
- Taxon
- indica riceOryza sativa Indica Groupe1
- Treatment
- Delayed sowing datee0
- Outcome
- carbon assimilation in stem and sheath remobilization to the paniclee0
- Direction
- not beneficiale0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Delayed sowing date was not beneficial to the carbon assimilation in stem and sheath remobilization to the panicle”
e1“high quality indica rice”
Claim · model-written summary
Soluble sugar accumulation in stem and leaf declined as grain amylose content and accumulation increased.
- Taxon
- indica riceOryza sativa Indica Groupe1
- Organ / stage
- graine0
- Outcome
- soluble sugars accumulation of stem and leafe0
- Direction
- reducede0
- Qualifier
- amylose content and accumulation increasede0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“The soluble sugars accumulation of stem and leaf reduced along with the increase in grain amylose content and accumulation increased”
e1“high quality indica rice”
Claim · model-written summary
The rapid decline in leaf soluble sugar accumulation coincided with rapid grain amylose accumulation.
- Taxon
- indica riceOryza sativa Indica Groupe1
- Organ / stage
- leavese0
- Outcome
- soluble sugar accumulation in leavese0
- Direction
- declinee0
- Qualifier
- rapid increase amylose content and accumulation period(after flowering 6～12 d)e0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“The rapid decline period(after flowering 3～12 d)of soluble sugar accumulation in leaves was synchronized with the rapid increase amylose content and accumulation period(after flowering 6～12 d)”
e1“high quality indica rice”
Claim · model-written summary
Later sowing reduced total nitrogen accumulation in culm, sheath and leaf.
- Taxon
- indica riceOryza sativa Indica Groupe1
- Treatment
- sowing date postponese0
- Outcome
- accumulation of total nitrogen of culm and sheath and leafe0
- Direction
- reducede0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“The sowing date postpones reduced the accumulation of total nitrogen of culm and sheath and leaf”
e1“high quality indica rice”
Claim · model-written summary
Later sowing decreased the grain nitrogen harvest index.
- Taxon
- indica riceOryza sativa Indica Groupe2
- Treatment
- sowing date postponese1
- Outcome
- grain nitrogen harvest indexe0
- Direction
- decreasede0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“grain nitrogen harvest index decreased”
e1“The sowing date postpones”
e2“high quality indica rice”
Claim · model-written summary
Later sowing increased protein nitrogen accumulation in culm, sheath and leaf.
- Taxon
- indica riceOryza sativa Indica Groupe1
- Organ / stage
- culm and sheath and leafe0
- Treatment
- delay in sowing datee0
- Outcome
- protein nitrogen accumulatione0
- Direction
- increasede0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“delay in sowing date protein nitrogen accumulation was increased culm and sheath and leaf”
e1“high quality indica rice”
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See all 193 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.