Abstract
By means of artificial and natural ageing,the effect of husk closing degree on resistance to ageing of quality Indica CMS Q1A was studied.When the husk is not closed in certain degree,the 1000-grain weight would decrease,the reserved nutrition in grain is not enough to support the ordinary growth of the young seedlings and the normal seedling percentage is low.When the closing degree is less,the resistance to ageing is lower.The lower resistance to ageing is indicated by died embryo,or vitality decreased embryo,increase the abnormal seedling percentage,decrease the seedling growth of dry weight per day;When the closing degree is low,the amount of embryos of decreased vitality increase greatly.In vacuum condition,the effect of husk closing degree on resistance to ageing decreased.One of the main factor of husk closing degree affecting on resistance to ageing is the husk decreasing seed oxygenizing.Treated in the artificial ageing condition of 100% relative humility and 40 ℃ for 5 days,the ageing degree is equal to that during one summer natural temperature ageing condition.
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Claims 8
Claim · model-written summary
When the husk is not closed to a certain degree, 1000-grain weight decreases.
- Taxon
- hybrid rice
Oryza sativat0 - Treatment
- husk is not closed in certain degreee1
- Outcome
- 1000-grain weighte1
- Direction
- decreasee1
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“The effect of husk closing degree of hybrid rice seed on resistance to ageing”
e1“When the husk is not closed in certain degree,the 1000-grain weight would decrease”
Claim · model-written summary
With less husk closing, the normal seedling percentage is low.
- Taxon
- hybrid riceOryza sativat0
- Treatment
- closing degreee2
- Outcome
- normal seedling percentagee3
- Direction
- lowe3
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“The effect of husk closing degree of hybrid rice seed on resistance to ageing”
e3“the normal seedling percentage is low”
e2“When the closing degree is less,the resistance to ageing is lower”
Claim · model-written summary
With less husk closing, resistance to ageing is lower.
- Taxon
- hybrid riceOryza sativat0
- Treatment
- closing degreee2
- Outcome
- resistance to ageinge2
- Direction
- lowere2
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“The effect of husk closing degree of hybrid rice seed on resistance to ageing”
e2“When the closing degree is less,the resistance to ageing is lower”
Claim · model-written summary
Lower resistance to ageing from low husk closing is indicated by an increase in abnormal seedling percentage.
- Taxon
- hybrid riceOryza sativat0
- Treatment
- husk closing degreet0
- Outcome
- abnormal seedling percentagee3
- Direction
- increasee3
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“The effect of husk closing degree of hybrid rice seed on resistance to ageing”
e3“The lower resistance to ageing is indicated by died embryo,or vitality decreased embryo,increase the abnormal seedling percentage,decrease the seedling growth of dry weight per day”
Claim · model-written summary
With low husk closing, the amount of embryos of decreased vitality increases greatly.
- Taxon
- hybrid riceOryza sativat0
- Treatment
- closing degreee4
- Outcome
- embryos of decreased vitalitye4
- Direction
- increasee4
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“The effect of husk closing degree of hybrid rice seed on resistance to ageing”
e4“When the closing degree is low,the amount of embryos of decreased vitality increase greatly”
Claim · model-written summary
In vacuum condition, the effect of husk closing degree on resistance to ageing decreased.
- Taxon
- hybrid riceOryza sativat0
- Treatment
- vacuum conditione5
- Outcome
- effect of husk closing degree on resistance to ageinge5
- Direction
- decreasede5
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“The effect of husk closing degree of hybrid rice seed on resistance to ageing”
e5“In vacuum condition,the effect of husk closing degree on resistance to ageing decreased”
Claim · model-written summary
A main factor of husk closing degree affecting resistance to ageing is husk decreasing seed oxygenizing.
- Taxon
- hybrid riceOryza sativat0
- Outcome
- resistance to ageinge6
- Qualifier
- husk decreasing seed oxygenizinge6
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“The effect of husk closing degree of hybrid rice seed on resistance to ageing”
e6“One of the main factor of husk closing degree affecting on resistance to ageing is the husk decreasing seed oxygenizing”
Claim · model-written summary
Artificial ageing at 100% relative humidity and 40 ℃ for 5 days gives an ageing degree equal to one summer of natural temperature ageing.
- Taxon
- hybrid riceOryza sativat0
- Treatment
- artificial ageing conditione7
- Outcome
- ageing degreee7
- Value
- 5 dayse7
- Comparator
- one summer natural temperature ageing conditione7
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“The effect of husk closing degree of hybrid rice seed on resistance to ageing”
e7“Treated in the artificial ageing condition of 100% relative humility and 40 ℃ for 5 days,the ageing degree is equal to that during one summer natural temperature ageing condition”