Claim · model-written summary
Crude protein concentration fell as low as 5.2 per cent on ryegrass pastures during the 1967-68 drought.
- Taxon
- Lolium perenne
Lolium perennet0 - Treatment
- the drought in 1967-68e6
- Outcome
- crude protein concentratione6
- Direction
- felle6
- Value
- 5.2 per cente6
Not reportedMaterialGeneCompoundOrgan / stageInteractorInteractor roleSecond interactorSecond interactor roleComparatorSettingQualifier
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“pastures sown with Phalaris tuberosa or Lolium perenne”
e6“The crude protein concentration of pasture present was always greater than 11 per cent except during the drought in 1967-68, when it fell as low as 5.2 per cent on the ryegrass pastures and to half this level on the phalaris pastures”
Title
KFM Reed Australian Journal of Experimental Agriculture and Animal Husbandry 1974. doi:10.1071/ea9740640
Other claims from this paper (12)
- Observation Phalaris and ryegrass pastures produced average annual yields of 10.4 and 8.0 t dry matter ha-1 respectively over four years.
- Association Phalaris pasture growth was usually greater in winter, producing about 30 per cent more dry matter than ryegrass pasture.
- Observation Stocking rate rarely had a significant effect on pasture growth.
- Association Pasture growth rate fell as stocking rate increased in the final six months of the experiment.
- Observation Basal cover of phalaris declined to about 20 per cent in the two years after the 1967-68 drought, irrespective of stocking rate.
- Association Ryegrass basal cover declined to a greater extent than phalaris basal cover during the drought period.
- Observation Some recovery of ryegrass occurred in 1969 and 1970 at lower stocking rates, when the ryegrass was able to set seed.
- Observation Basal cover of subterranean clover was about 20 per cent at 19.8 sheep ha-1 in most years and usually less at higher stocking rates.
- Observation Poa annua, Trifolium cernuum, Trifolium glomerata, Arctotheca calendula and Holcus lanatus were the main species that replaced the sown species.
- Association Pasture above a 1.5 cm cutting height was less than 2 t ha-1 during most of the experiment and decreased as stocking rate increased.
- Observation Crude protein concentration of pasture present was always above 11 per cent except during the 1967-68 drought.
- Association Crude protein concentration on phalaris pastures fell to half the pre-drought level during the 1967-68 drought.