Abstract
The effects of different planting densities( 18000 ~ 54000 plant /hm2) on the growth,development,yield,and yield components of hybrid insect- resistant cotton variety Zhongmiansuo 75 were studied through filed tests. The results indicated that:when plant density increased,the whole growth and developmental duration of cotton shortened,plant height decreased firstly and then slightly increased,dry matter weight per plant,total fruit- branch node number,and fruit- branch number per plant reduced,while total dry matter weight per unit area increased. As plant density rose,the boll formation concentrated towards the upper part and inner of cotton plants,the number of bolls per plant decreased significantly,the boll weight,total boll number per unit area and unginned cotton yield per unit area all increased firstly and then decreased,and the rate of pre- frost flowers showed a rising trend.The optimum planting density of Zhongmiansuo 75 in coastal area was 36000 plant /hm2,and the highest unginned cotton yield4292. 0 kg /hm2 could be obtained under this condition.
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Claims 10
Claim · model-written summary
Increasing planting density shortened the whole growth and developmental duration of cotton.
- Taxon
- Cotton
Gossypium hirsutumt0 - Treatment
- plant density increasede2
- Outcome
- whole growth and developmental duratione1
- Direction
- shortenede1
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e1“the whole growth and developmental duration of cotton shortened”
e2“when plant density increased”
t0“Hybrid Insect- resistant Cotton”
Claim · model-written summary
Plant height of cotton decreased first and then slightly increased with increasing planting density.
- Taxon
- CottonGossypium hirsutumt0
- Treatment
- plant density increasede2
- Outcome
- plant heighte1
- Direction
- decreased firstly and then slightly increasede1
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e1“plant height decreased firstly and then slightly increased”
e2“when plant density increased”
t0“Hybrid Insect- resistant Cotton”
Claim · model-written summary
Dry matter weight per plant, total fruit-branch node number and fruit-branch number per plant were reduced with increasing planting density.
- Taxon
- CottonGossypium hirsutumt0
- Treatment
- plant density increasede2
- Outcome
- dry matter weight per plant,total fruit- branch node number,and fruit- branch number per plante1
- Direction
- reducede1
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e1“dry matter weight per plant,total fruit- branch node number,and fruit- branch number per plant reduced”
e2“when plant density increased”
t0“Hybrid Insect- resistant Cotton”
Claim · model-written summary
Total dry matter weight per unit area of cotton increased with increasing planting density.
- Taxon
- CottonGossypium hirsutumt0
- Treatment
- plant density increasede2
- Outcome
- total dry matter weight per unit areae1
- Direction
- increasede1
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e1“while total dry matter weight per unit area increased”
e2“when plant density increased”
t0“Hybrid Insect- resistant Cotton”
Claim · model-written summary
The number of bolls per cotton plant decreased significantly as planting density rose.
- Taxon
- CottonGossypium hirsutumt0
- Treatment
- plant density rosee3
- Outcome
- number of bolls per plante1
- Direction
- decreasede1
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e1“the number of bolls per plant decreased significantly”
e3“As plant density rose”
t0“Hybrid Insect- resistant Cotton”
Claim · model-written summary
Boll weight, total boll number per unit area and unginned cotton yield per unit area all increased first and then decreased as planting density rose.
- Taxon
- CottonGossypium hirsutumt0
- Treatment
- plant density rosee3
- Outcome
- boll weight,total boll number per unit area and unginned cotton yield per unit areae1
- Direction
- increased firstly and then decreasede1
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e1“the boll weight,total boll number per unit area and unginned cotton yield per unit area all increased firstly and then decreased”
e3“As plant density rose”
t0“Hybrid Insect- resistant Cotton”
Claim · model-written summary
The rate of pre-frost flowers of cotton showed a rising trend as planting density rose.
- Taxon
- CottonGossypium hirsutumt0
- Treatment
- plant density rosee3
- Outcome
- rate of pre- frost flowerse1
- Direction
- rising trende1
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e1“the rate of pre- frost flowers showed a rising trend”
e3“As plant density rose”
t0“Hybrid Insect- resistant Cotton”
Claim · model-written summary
Boll formation of cotton concentrated towards the upper part and inner of plants as planting density rose.
- Taxon
- CottonGossypium hirsutumt0
- Organ / stage
- upper part and inner of cotton plantse4
- Treatment
- plant density rosee3
- Outcome
- boll formatione4
- Direction
- concentrated towardse4
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e3“As plant density rose”
e4“the boll formation concentrated towards the upper part and inner of cotton plants”
t0“Hybrid Insect- resistant Cotton”
Claim · model-written summary
The optimum planting density of Zhongmiansuo 75 in the coastal area was 36000 plant /hm2.
- Taxon
- CottonGossypium hirsutumt0
- Material
- Zhongmiansuo 75e5
- Outcome
- optimum planting densitye5
- Value
- 36000 plant /hm2e5
- Setting
- coastal areae5
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e5“The optimum planting density of Zhongmiansuo 75 in coastal area was 36000 plant /hm2”
t0“Hybrid Insect- resistant Cotton”
Claim · model-written summary
The highest unginned cotton yield, 4292.0 kg/hm2, could be obtained at the optimum planting density.
- Taxon
- CottonGossypium hirsutumt0
- Outcome
- unginned cotton yielde6
- Value
- 4292. 0 kg /hm2e6
- Qualifier
- under this conditione6
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e6“the highest unginned cotton yield4292. 0 kg /hm2 could be obtained under this condition”
t0“Hybrid Insect- resistant Cotton”
The same questions in other papers
density · growth · Gossypium hirsutum (cotton)Positive and negative results
38 papers in the same direction as this paper · 7 in the opposite direction
- no effect
- no effect
- negative
42 papers more in this group
See all 46 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.