Abstract
Lucerne (Medicago sativa L.) plants grown to two stages of maturity were cut at 2, 5, or 10 cm above the crown. In addition, the leaf on the stubble and on basal shoots was either removed or retained. The change in the number and size of the regrowth shoots growing from different heights above the crown, and the total yield of dry matter, were observed for 4 weeks after cutting. Nearly all the regrowth shoots arose from very near to the crown, either on the crown itself or from within the first 2 cm above it, so that cutting at higher levels increased shoot numbers only slightly. Also most of the shoots arising from near the crown resumed extension growth earlier, and therefore grew larger, than the shoots arising from higher positions. In general the growth of shoots from one stubble segment was not influenced by whether segments were still present above. Increasing the cutting height above 2 cm consequently produced little effect on the yield of dry matter 2 and 4 weeks after cutting. Retaining stubble leaf and basal shoot leaf increased the shoot yield 2 and 4 weeks later, because the basal shoots resuming growth first grew larger than those on plants from which leaves were removed. The effect of retaining leaves was independent of the stage of maturity when the plants were cut and of the cutting height.
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Claims 8
Claim · model-written summary
Nearly all regrowth shoots arose very near the crown, on the crown itself or within the first 2 cm above it.
- Taxon
- lucerne
Medicago sativat0 - Outcome
- regrowth shoots arose from very near to the crowne0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Nearly all the regrowth shoots arose from very near to the crown, either on the crown itself or from within the first 2 cm above it”
t0“lucerne”
Claim · model-written summary
Cutting at higher levels increased shoot numbers only slightly.
- Taxon
- lucerneMedicago sativat0
- Treatment
- cutting at higher levelse0
- Outcome
- shoot numberse0
- Direction
- increasede0
- Qualifier
- only slightlye0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“cutting at higher levels increased shoot numbers only slightly”
t0“lucerne”
Claim · model-written summary
Most shoots arising near the crown resumed extension growth earlier and grew larger than shoots arising from higher positions.
- Taxon
- lucerneMedicago sativat0
- Outcome
- resumed extension growth earliere0
- Comparator
- shoots arising from higher positionse0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“most of the shoots arising from near the crown resumed extension growth earlier, and therefore grew larger, than the shoots arising from higher positions”
t0“lucerne”
Claim · model-written summary
Growth of shoots from one stubble segment was not influenced by whether segments were present above.
- Taxon
- lucerneMedicago sativat0
- Outcome
- growth of shoots from one stubble segmente0
- Qualifier
- not influencede0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“the growth of shoots from one stubble segment was not influenced by whether segments were still present above”
t0“lucerne”
Claim · model-written summary
Increasing the cutting height above 2 cm had little effect on dry-matter yield 2 and 4 weeks after cutting.
- Taxon
- lucerneMedicago sativat0
- Treatment
- Increasing the cutting height above 2 cme0
- Outcome
- yield of dry mattere0
- Direction
- little effecte0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Increasing the cutting height above 2 cm consequently produced little effect on the yield of dry matter 2 and 4 weeks after cutting”
t0“lucerne”
Claim · model-written summary
Retaining stubble leaf and basal shoot leaf increased shoot yield 2 and 4 weeks later.
- Taxon
- lucerneMedicago sativat0
- Treatment
- Retaining stubble leaf and basal shoot leafe0
- Outcome
- shoot yielde0
- Direction
- increasede0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Retaining stubble leaf and basal shoot leaf increased the shoot yield 2 and 4 weeks later”
t0“lucerne”
Claim · model-written summary
The yield gain from retaining leaves is explained by basal shoots resuming growth first and growing larger than those on plants with leaves removed.
- Taxon
- lucerneMedicago sativat0
- Outcome
- grew largere0
- Qualifier
- basal shoots resuming growth firste0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“because the basal shoots resuming growth first grew larger than those on plants from which leaves were removed”
t0“lucerne”
Claim · model-written summary
The effect of retaining leaves was independent of stage of maturity at cutting and of cutting height.
- Taxon
- lucerneMedicago sativat0
- Outcome
- effect of retaining leavese0
- Qualifier
- independent of the stage of maturity when the plants were cut and of the cutting heighte0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“The effect of retaining leaves was independent of the stage of maturity when the plants were cut and of the cutting height”
t0“lucerne”
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pruning · yield · Medicago sativa (alfalfa)Results differ
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See all 73 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.