Abstract
In order to study the effect of planting density on ear characters of corn with uneven plant height,an experiment was conducted based on a split plot design with corn hydrids XY335,ZD958 and GY1 as main plot and planting density of 45000,53250,61500,69750 and 78000 plant/hm2 as subplot.The planting density significantly affected the ear length and diameter,bald tip degree,row number per ear,grain number per row,ear grain weight,seed-set percentage,bract and silk dry weight,cob and ear pedicle dry weight.There was significant difference among hybrids associated with variation of planting density for ear length,bald tip degree,grain number per row,ear grain weight,seed-set percentage,bract and silk dry weight.Variation coefficient from planting density for ear length,grain number per row,ear grain weight,seed-set percentage,bract and silk dry weight ranked as tall hybrid,medium hybrid and short hybrid.Increased planting density led to decrease in ear grain number due mainly to reduced grain number per row,and the increase of bald tip was larger than the decrease of ear length and width.Percentage of grain to ear was a stable trait that was less affected by planting density for a given hybrid.
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Claims 11
Claim · model-written summary
Planting density significantly affected ear length, diameter and bald tip degree.
- Taxon
- corn
Zea mays subsp. mayst0 - Treatment
- planting densitye0
- Outcome
- ear length and diameter,bald tip degreee0
Not reportedComparatorDirection
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“The planting density significantly affected the ear length and diameter,bald tip degree”
t0“corn”
Claim · model-written summary
Planting density significantly affected row number per ear, grain number per row and ear grain weight.
- Taxon
- cornZea mays subsp. mayst0
- Treatment
- planting densitye0
- Outcome
- row number per ear,grain number per row,ear grain weighte0
Not reportedComparatorDirection
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“The planting density significantly affected the ear length and diameter,bald tip degree,row number per ear,grain number per row,ear grain weight”
t0“corn”
Claim · model-written summary
Planting density significantly affected seed set percentage and bract and silk dry weight.
- Taxon
- cornZea mays subsp. mayst0
- Treatment
- planting densitye1
- Outcome
- seed-set percentage,bract and silk dry weighte0
Not reportedComparatorDirection
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“seed-set percentage,bract and silk dry weight,cob and ear pedicle dry weight.”
e1“The planting density significantly affected”
t0“corn”
Claim · model-written summary
Planting density significantly affected cob and ear pedicle dry weight.
- Taxon
- cornZea mays subsp. mayst0
- Treatment
- planting densitye1
- Outcome
- cob and ear pedicle dry weighte0
Not reportedComparatorDirection
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“cob and ear pedicle dry weight.”
e1“The planting density significantly affected”
t0“corn”
Claim · model-written summary
Hybrids differed significantly in density responses for ear length, bald tip degree and grain number per row.
- Taxon
- cornZea mays subsp. mayst0
- Outcome
- difference among hybridse0
- Qualifier
- ear length,bald tip degree,grain number per rowe0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“There was significant difference among hybrids associated with variation of planting density for ear length,bald tip degree,grain number per row”
t0“corn”
Claim · model-written summary
Hybrids differed significantly in density responses for ear grain weight, seed set percentage and bract and silk dry weight.
- Taxon
- cornZea mays subsp. mayst0
- Outcome
- difference among hybridse0
- Qualifier
- ear grain weight,seed-set percentage,bract and silk dry weighte0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“There was significant difference among hybrids associated with variation of planting density for ear length,bald tip degree,grain number per row,ear grain weight,seed-set percentage,bract and silk dry weight.”
t0“corn”
Claim · model-written summary
Density response variation for ear length, grain number per row and ear grain weight ranked tall, medium, then short hybrids.
- Taxon
- cornZea mays subsp. mayst0
- Material
- tall hybrid,medium hybrid and short hybride0
- Outcome
- Variation coefficient from planting density for ear length,grain number per row,ear grain weighte0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Variation coefficient from planting density for ear length,grain number per row,ear grain weight,seed-set percentage,bract and silk dry weight ranked as tall hybrid,medium hybrid and short hybrid.”
t0“corn”
Claim · model-written summary
Density response variation for seed set percentage and bract and silk dry weight ranked tall, medium, then short hybrids.
- Taxon
- cornZea mays subsp. mayst0
- Material
- tall hybrid,medium hybrid and short hybride0
- Outcome
- seed-set percentage,bract and silk dry weighte0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Variation coefficient from planting density for ear length,grain number per row,ear grain weight,seed-set percentage,bract and silk dry weight ranked as tall hybrid,medium hybrid and short hybrid.”
t0“corn”
Claim · model-written summary
Increasing density decreased ear grain number mainly through fewer grains per row.
- Taxon
- cornZea mays subsp. mayst0
- Treatment
- Increased planting densitye0
- Outcome
- ear grain numbere0
- Direction
- decreasee0
- Qualifier
- reduced grain number per rowe0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Increased planting density led to decrease in ear grain number due mainly to reduced grain number per row”
t0“corn”
Claim · model-written summary
The increase in bald tip exceeded the decrease in ear length and width at higher density.
- Taxon
- cornZea mays subsp. mayst0
- Treatment
- Increased planting densitye1
- Outcome
- bald tipe0
- Direction
- increasee0
- Qualifier
- larger than the decrease of ear length and widthe0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“the increase of bald tip was larger than the decrease of ear length and width.”
e1“Increased planting density”
t0“corn”
Claim · model-written summary
For a given hybrid, grain to ear percentage was relatively stable across densities.
- Taxon
- cornZea mays subsp. mayst0
- Treatment
- planting densitye0
- Outcome
- Percentage of grain to eare0
- Direction
- less affectede0
- Qualifier
- for a given hybride0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Percentage of grain to ear was a stable trait that was less affected by planting density for a given hybrid.”
t0“corn”