Abstract
At Kyabram, Victoria, the effects of growth stage at cutting on dry matter (DM) yield and quality of lucerne was determined during the warm season haymaking period for cultivars with contrasting winter dormancy characteristics. Growth stages at cutting were pre-flower bud, flower-bud, 10% bloom and full bloom. Cultivars were winter non-dormant CUF 101 and Pioneer Brand 572, semi-winter dormant Pioneer Brand 581 and winter dormant Pioneer Brand 545. Cultivar responses or interactions between cultivar and growth stage at cutting were not significant (P>0.05) for dry matter yield, crude protein or in vitro digestibility. Cutting of the pre-flower bud stage, compared with cutting at the 10% bloom stage, reduced DM yield by 18% (16.4 v. 13.5 t/ha), but increased crude protein content of the lucerne from 19.3 to 24%. The total protein yield per hectare was not affected by cutting stages from pre-flower bud stage to 10% bloom. Cutting lucerne at the flower bud stage rather than at 10% bloom gave increased protein content and digestibility with only a moderate yield decline. However, more frequent cutting was unsatisfactory as it decreased the density of the stand and increased the proportion of weeds and so could not be recommended.
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Claims 9
Claim · model-written summary
Cultivar and cultivar-by-stage responses were nonsignificant for yield, protein and digestibility.
- Taxon
- lucerne
Medicago sativat0 - Outcome
- dry matter yield, crude protein or in vitro digestibilitye0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Cultivar responses or interactions between cultivar and growth stage at cutting were not significant (P>0.05) for dry matter yield, crude protein or in vitro digestibility”
t0“lucerne”
Claim · model-written summary
Pre-flower bud cutting reduced dry matter yield by 18% versus 10% bloom.
- Taxon
- lucerneMedicago sativat0
- Treatment
- pre-flower bud stagee0
- Outcome
- DM yielde0
- Direction
- reducede0
- Value
- 18%e0
- Comparator
- 10% bloom stagee0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Cutting of the pre-flower bud stage, compared with cutting at the 10% bloom stage, reduced DM yield by 18% (16.4 v. 13.5 t/ha)”
t0“lucerne”
Claim · model-written summary
Pre-flower bud cutting increased crude protein from 19.3 to 24%.
- Taxon
- lucerneMedicago sativae0
- Treatment
- pre-flower bud stagee0
- Outcome
- crude protein contente0
- Direction
- increasede0
- Value
- 19.3 to 24%e0
- Comparator
- 10% bloom stagee0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Cutting of the pre-flower bud stage, compared with cutting at the 10% bloom stage, reduced DM yield by 18% (16.4 v. 13.5 t/ha), but increased crude protein content of the lucerne from 19.3 to 24%”
Claim · model-written summary
Protein yield per hectare did not change across cutting stages through 10% bloom.
- Taxon
- lucerneMedicago sativat0
- Treatment
- pre-flower bud stagee0
- Outcome
- total protein yield per hectaree0
- Direction
- not affectede0
- Comparator
- 10% bloome0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“total protein yield per hectare was not affected by cutting stages from pre-flower bud stage to 10% bloom”
t0“lucerne”
Claim · model-written summary
Flower bud cutting increased protein content and digestibility with moderate yield decline versus 10% bloom.
- Taxon
- lucerneMedicago sativae0
- Treatment
- flower bud stagee0
- Outcome
- protein content and digestibilitye0
- Direction
- increasede0
- Comparator
- 10% bloome0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Cutting lucerne at the flower bud stage rather than at 10% bloom gave increased protein content and digestibility with only a moderate yield decline”
Claim · model-written summary
Flower bud cutting caused a moderate yield decline versus 10% bloom.
- Taxon
- lucerneMedicago sativae0
- Treatment
- flower bud stagee0
- Outcome
- yielde0
- Direction
- declinee0
- Comparator
- 10% bloome0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Cutting lucerne at the flower bud stage rather than at 10% bloom gave increased protein content and digestibility with only a moderate yield decline”
Claim · model-written summary
More frequent cutting decreased stand density and increased weed proportion.
- Taxon
- lucerneMedicago sativat0
- Treatment
- more frequent cuttinge0
- Outcome
- density of the stande0
- Direction
- decreasede0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“more frequent cutting was unsatisfactory as it decreased the density of the stand and increased the proportion of weeds”
t0“lucerne”
Claim · model-written summary
More frequent cutting increased the proportion of weeds.
- Taxon
- lucerneMedicago sativat0
- Treatment
- more frequent cuttinge0
- Interactor
- weedse0weed
- Outcome
- proportion of weedse0
- Direction
- increasede0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“more frequent cutting was unsatisfactory as it decreased the density of the stand and increased the proportion of weeds”
t0“lucerne”
Claim · model-written summary
Authors do not recommend more frequent cutting.
- Taxon
- lucerneMedicago sativat0
- Outcome
- more frequent cuttinge0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“more frequent cutting was unsatisfactory as it decreased the density of the stand and increased the proportion of weeds and so could not be recommended”
t0“lucerne”
The same questions in other papers
pruning · weed · Medicago sativa (alfalfa)Positive and negative results
3 papers in the same direction as this paper · 2 in the opposite direction
- positive
- positive
- no effect
2 papers more in this group
See all 6 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.