Abstract
This investigation was made to study the influence of cutting frequency on the relation between the exhaustion of root·stubble reserves and the regrowth of shoot in Italian ryegrass. The more frequent removal of leaves showed the less the total production of leaf and the root·stubble dry weight. Throughout all defoliation frequency, the 1st clipping led the most heavily declining both in the shoot yields, and in root·stubble dry weight. And with the progress of repeating of defoliation, the decrease of top yields and stubble·root dry weight following each defoliation were reduced. The concentration of available carbohydrate in root·stubble lowered parallel with clipping frequency. However, the concentration of nitrogen in root·stubble were higher in 50 days interval clipping than unclipping, and with increasing of the frequency the nitrogen concentration in root·stubble lowered. Increasing of clipping frequency appears to rise the ratio of cell wall substances and reserve substances in root·stubble.
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Claims 10
Claim · model-written summary
More frequent leaf removal reduced total leaf production.
- Taxon
- Italian ryegrass
Lolium multiflorume1 - Treatment
- more frequent removal of leavese0
- Outcome
- total production of leafe0
- Direction
- lesse0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“The more frequent removal of leaves showed the less the total production of leaf and the root·stubble dry weight.”
e1“the regrowth of shoot in Italian ryegrass”
Claim · model-written summary
More frequent leaf removal reduced root-stubble dry weight.
- Taxon
- Italian ryegrassLolium multiflorume1
- Treatment
- more frequent removal of leavese0
- Outcome
- root·stubble dry weighte0
- Direction
- lesse0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“The more frequent removal of leaves showed the less the total production of leaf and the root·stubble dry weight.”
e1“the regrowth of shoot in Italian ryegrass”
Claim · model-written summary
The first clipping caused the largest decline in shoot yield.
- Taxon
- Italian ryegrassLolium multiflorume1
- Treatment
- 1st clippinge0
- Outcome
- shoot yieldse0
- Direction
- most heavily declininge0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“the 1st clipping led the most heavily declining both in the shoot yields, and in root·stubble dry weight.”
e1“the regrowth of shoot in Italian ryegrass”
Claim · model-written summary
The first clipping caused the largest decline in root-stubble dry weight.
- Taxon
- Italian ryegrassLolium multiflorume1
- Treatment
- 1st clippinge0
- Outcome
- root·stubble dry weighte0
- Direction
- most heavily declininge0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“the 1st clipping led the most heavily declining both in the shoot yields, and in root·stubble dry weight.”
e1“the regrowth of shoot in Italian ryegrass”
Claim · model-written summary
Successive defoliations brought progressively smaller top-yield declines.
- Taxon
- Italian ryegrassLolium multiflorume1
- Treatment
- repeating of defoliatione0
- Outcome
- decrease of top yieldse0
- Direction
- reducede0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“with the progress of repeating of defoliation, the decrease of top yields and stubble·root dry weight following each defoliation were reduced.”
e1“the regrowth of shoot in Italian ryegrass”
Claim · model-written summary
Successive defoliations brought progressively smaller root-stubble dry-weight declines.
- Taxon
- Italian ryegrassLolium multiflorume1
- Treatment
- repeating of defoliatione0
- Outcome
- stubble·root dry weighte0
- Direction
- reducede0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“with the progress of repeating of defoliation, the decrease of top yields and stubble·root dry weight following each defoliation were reduced.”
e1“the regrowth of shoot in Italian ryegrass”
Claim · model-written summary
Available carbohydrate concentration in root-stubble declined as clipping frequency increased.
- Taxon
- Italian ryegrassLolium multiflorume1
- Treatment
- clipping frequencye0
- Outcome
- concentration of available carbohydrate in root·stubblee0
- Direction
- lowerede0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“The concentration of available carbohydrate in root·stubble lowered parallel with clipping frequency.”
e1“the regrowth of shoot in Italian ryegrass”
Claim · model-written summary
Root-stubble nitrogen concentration was higher with 50-day clipping than with no clipping.
- Taxon
- Italian ryegrassLolium multiflorume1
- Treatment
- 50 days interval clippinge0
- Outcome
- concentration of nitrogen in root·stubblee0
- Direction
- highere0
- Comparator
- unclippinge0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“the concentration of nitrogen in root·stubble were higher in 50 days interval clipping than unclipping”
e1“the regrowth of shoot in Italian ryegrass”
Claim · model-written summary
Root-stubble nitrogen concentration declined as clipping frequency increased.
- Taxon
- Italian ryegrassLolium multiflorume1
- Treatment
- increasing of the frequencye0
- Outcome
- nitrogen concentration in root·stubblee0
- Direction
- lowerede0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“with increasing of the frequency the nitrogen concentration in root·stubble lowered.”
e1“the regrowth of shoot in Italian ryegrass”
Claim · model-written summary
Increasing clipping frequency appeared to raise the root-stubble cell-wall to reserve-substance ratio.
- Taxon
- Italian ryegrassLolium multiflorume1
- Treatment
- Increasing of clipping frequencye0
- Outcome
- ratio of cell wall substances and reserve substances in root·stubblee0
- Direction
- risee0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Increasing of clipping frequency appears to rise the ratio of cell wall substances and reserve substances in root·stubble.”
e1“the regrowth of shoot in Italian ryegrass”