Abstract
Varietal difference in change process of dry culm weight during ripening period and their effects to percentage of ripened grains were studied using 11 rice varieties that were currently extended or recently developed in Heilongjiang Province.The results showed that (1) The change process of dry culm weight in the cold area fell into 3 phases.The dry culm weight increased in Phase 1,decreased in Phase 2,and remained stable in Phase 3.(2)There were differences in the change process of dry culm weight of the varieties.The varieties were divided into 2 patterns,that was,Pattern A had Phase 1,2 and 3, and Pattern B only had Phase 1 and 2.The varieties of Pattern A could get high percentage of ripened grains.(3)Some varieties were 5 days of Phase 1 duration,and the others were 10 days.The shorter duration of Phase 1 was beneficial to high percentage of ripened grains.(4)There was varietal difference in the decrease rate of dry culm weight in Phase 2.The higher the maximum amount of potential dry matter from the culm to panicle per spidelet a day was,the higher the percentage of ripened grains probably was.$$$$
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Claims 9
Claim · model-written summary
Rice dry culm weight increased during Phase 1.
- Taxon
- rice
Oryza sativat0 - Organ / stage
- Phase 1e0
- Outcome
- dry culm weighte0
- Direction
- increasede0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“The dry culm weight increased in Phase 1”
t0“rice”
Claim · model-written summary
Rice dry culm weight decreased during Phase 2.
- Taxon
- riceOryza sativat0
- Organ / stage
- Phase 2e0
- Outcome
- dry culm weighte1
- Direction
- decreasede0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“decreased in Phase 2”
e1“The dry culm weight increased in Phase 1”
t0“rice”
Claim · model-written summary
Rice dry culm weight remained stable during Phase 3.
- Taxon
- riceOryza sativat0
- Organ / stage
- Phase 3e0
- Outcome
- dry culm weighte1
- Direction
- remained stablee0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“remained stable in Phase 3”
e1“The dry culm weight increased in Phase 1”
t0“rice”
Claim · model-written summary
Varieties differed in culm weight change patterns, with Pattern A comprising three phases and Pattern B two.
- Taxon
- riceOryza sativat0
- Material
- Pattern Ae0
- Outcome
- 2 patternse0
- Comparator
- Pattern Be0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“The varieties were divided into 2 patterns,that was,Pattern A had Phase 1,2 and 3, and Pattern B only had Phase 1 and 2.”
t0“rice”
Claim · model-written summary
Pattern A varieties could attain high ripened grain percentage.
- Taxon
- riceOryza sativat0
- Material
- Pattern Ae0
- Outcome
- percentage of ripened grainse0
- Direction
- highe0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“The varieties of Pattern A could get high percentage of ripened grains.”
t0“rice”
Claim · model-written summary
Phase 1 lasted five days in some varieties and ten in others.
- Taxon
- riceOryza sativat0
- Outcome
- Phase 1 duratione0
- Value
- 5 dayse0
- Qualifier
- 10 dayse0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Some varieties were 5 days of Phase 1 duration,and the others were 10 days.”
t0“rice”
Claim · model-written summary
Shorter Phase 1 duration favored high ripened grain percentage.
- Taxon
- riceOryza sativat0
- Organ / stage
- Phase 1e0
- Outcome
- percentage of ripened grainse0
- Direction
- highe0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“The shorter duration of Phase 1 was beneficial to high percentage of ripened grains.”
t0“rice”
Claim · model-written summary
Varieties differed in Phase 2 culm weight decrease rate.
- Taxon
- riceOryza sativat0
- Organ / stage
- Phase 2e0
- Outcome
- decrease rate of dry culm weighte0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“There was varietal difference in the decrease rate of dry culm weight in Phase 2.”
t0“rice”
Claim · model-written summary
Greater potential dry matter transfer from culm to panicle per spikelet per day was associated with higher ripened grain percentage.
- Taxon
- riceOryza sativat0
- Organ / stage
- culm to paniclee0
- Outcome
- percentage of ripened grainse0
- Direction
- highere0
- Qualifier
- probablye0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“The higher the maximum amount of potential dry matter from the culm to panicle per spidelet a day was,the higher the percentage of ripened grains probably was.”
t0“rice”