Abstract
Growth characteristics of leaves and plant, function days and dynamic change of leaf area and energy through photosynthesis of leaves were studied in the experiment of waxy corn (suyu1) in two densities of 60,000 plants/hm 2 and 75 000 plants/hm 2 respectively. The results showed that the speeds of leaf growth in the two densities are similar. The order of leaf growth speeds are as follows: three basic layers - top leaves mid-top leaves mid-bottom leaves. Among these leaves, the growth speed of 16th leaf (non-ear leaf) is the fastest and the surface area of 15th leaf is the biggest. Ear leaves' growth speed is faster and these leaves' area are bigger. Length and width of leaves are both smaller in high-density plantings; the widest leaf is the second above the ear leaf (17 th leaf). Leaf area and photosynthesis are lower in high planting density, but they are stable in the middle growing stage and drop slowly in the late growing stage. LAI is the biggest in the stamen-growing stage, the photosynthesis potential accounts for 2/3 of distribution in the late stage of the whole growth period. The plant growth curve is in accord with logistic equation, plant height and population order rate were lower in the density of 75 thousand plants per hectare than in the density of 60 thousand plants per hectare, but the output exceeded 493.6 kg/hm 2. The experiment indicated that: a density of 75 thousand plants per hectare is more efficient for the growth of waxy corn (suyu1).
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Claims 17
Claim · model-written summary
Leaf growth speeds were similar at the two densities.
Not reportedTaxonComparator
Verbatim
e0“the speeds of leaf growth in the two densities are similar”
Claim · model-written summary
Leaf growth speed ranked from basic layers to top leaves, mid-top leaves and mid-bottom leaves.
Not reportedTaxon
Verbatim
e0“The order of leaf growth speeds are as follows: three basic layers - top leaves mid-top leaves mid-bottom leaves”
Claim · model-written summary
The 16th leaf grew fastest.
Not reportedTaxon
Verbatim
e0“the growth speed of 16th leaf (non-ear leaf) is the fastest”
Claim · model-written summary
The 15th leaf had the greatest surface area.
Not reportedTaxon
Verbatim
e0“the surface area of 15th leaf is the biggest”
Claim · model-written summary
Ear leaves grew faster and had larger areas.
Not reportedTaxon
Verbatim
e0“Ear leaves' growth speed is faster and these leaves' area are bigger”
Claim · model-written summary
Leaf length and width were smaller at high density.
Not reportedTaxonComparator
Verbatim
e0“Length and width of leaves are both smaller in high-density plantings”
Claim · model-written summary
The widest leaf was the second above the ear.
Not reportedTaxonDirection
Verbatim
e0“the widest leaf is the second above the ear leaf (17 th leaf)”
Claim · model-written summary
Leaf area was lower at high planting density.
Not reportedTaxonComparator
Verbatim
e0“Leaf area and photosynthesis are lower in high planting density”
Claim · model-written summary
Photosynthesis was lower at high planting density.
Not reportedTaxonComparator
Verbatim
e0“Leaf area and photosynthesis are lower in high planting density”
Claim · model-written summary
Leaf area and photosynthesis were stable in mid-growth and declined slowly late in growth.
Not reportedTaxon
Verbatim
e0“they are stable in the middle growing stage and drop slowly in the late growing stage”
Claim · model-written summary
LAI peaked during stamen growth.
Not reportedTaxon
Verbatim
e0“LAI is the biggest in the stamen-growing stage”
Claim · model-written summary
Late-stage photosynthesis potential accounted for 2/3 of the full-period distribution.
Not reportedTaxon
Verbatim
e0“the photosynthesis potential accounts for 2/3 of distribution in the late stage of the whole growth period”
Claim · model-written summary
The plant growth curve fit a logistic equation.
Not reportedTaxonDirection
Verbatim
e0“The plant growth curve is in accord with logistic equation”
Claim · model-written summary
Plant height was lower at 75 thousand than 60 thousand plants per hectare.
- Treatment
- density of 75 thousand plants per hectaree0
- Outcome
- plant heighte0
- Direction
- lowere0
- Comparator
- density of 60 thousand plants per hectaree0
Not reportedTaxon
Verbatim
e0“plant height and population order rate were lower in the density of 75 thousand plants per hectare than in the density of 60 thousand plants per hectare”
Claim · model-written summary
Population order rate was lower at 75 thousand than 60 thousand plants per hectare.
- Treatment
- density of 75 thousand plants per hectaree0
- Outcome
- population order ratee0
- Direction
- lowere0
- Comparator
- density of 60 thousand plants per hectaree0
Not reportedTaxon
Verbatim
e0“plant height and population order rate were lower in the density of 75 thousand plants per hectare than in the density of 60 thousand plants per hectare”
Claim · model-written summary
Output exceeded 493.6 kg/hm 2 at the higher density.
Not reportedTaxonTreatmentComparator
Verbatim
e0“but the output exceeded 493.6 kg/hm 2”
Claim · model-written summary
The authors concluded 75 thousand plants per hectare was more efficient for waxy corn growth.
Verbatim
e0“a density of 75 thousand plants per hectare is more efficient for the growth of waxy corn (suyu1)”