Claim · model-written summary
Elevated carbon dioxide increased dry matter yield by 61% under high nitrogen.
- Taxon
- tall fescue
Lolium arundinaceumt0 - Treatment
- twice ambient CO 2 concentrationse2
- Outcome
- DMe0
- Direction
- moree0
- Value
- 61%e0
- Qualifier
- high N conditionse0
Not reportedMaterialGeneCompoundOrgan / stageInteractorInteractor roleSecond interactorSecond interactor roleComparatorSetting
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“tall fescue”
e0“61% more DM under high N conditions”
e1“We studied the interaction of a CO 2 doubling and two levels of nitrogen fertilizer on the growth and chemical composition of tall fescue ( Festuca arundinacea Schreber cv. KY‐31) when infected and uninfected with the mutualistic fungal endophyte Neotyphodium coenophialum Morgan‐Jones and Gams.”
e2“plants grown in twice ambient CO 2 concentrations: photosynthesized 15% more”
e3“Plants infected with the endophytic fungus: photosynthesized 16% faster in high N compared with under low N”
Title
J. A. NEWMAN; M. L. ABNER; R. G. DADO; et al. Global Change Biology 2003. doi:10.1046/j.1365-2486.2003.00601.x
Other claims from this paper (15)
- Intervention effect Elevated carbon dioxide raised photosynthesis by 15%.
- Intervention effect Elevated carbon dioxide accelerated tiller production.
- Intervention effect Elevated carbon dioxide increased dry matter yield by 53% under low nitrogen.
- Intervention effect Organic matter increased 3% only under elevated carbon dioxide and high nitrogen.
- Intervention effect Elevated carbon dioxide reduced lignin by 14%.
- Intervention effect Elevated carbon dioxide reduced crude protein concentration by 21%.
- Intervention effect Elevated carbon dioxide increased soluble crude protein fraction by 13%.
- Intervention effect Elevated carbon dioxide increased acid detergent insoluble protein fraction by 12%.
- Intervention effect Elevated carbon dioxide reduced in vitro fiber digestibility by 5% under high nitrogen.
- Association Endophyte-infected plants photosynthesized 16% faster at high versus low nitrogen.
- Association Endophyte-infected plants flowered earlier than uninfected plants.
- Association Endophyte-infected plants had 28% less lignin at high versus low nitrogen.
- Intervention effect Endophyte infection moderated the carbon dioxide induced decline in crude protein.
- Intervention effect Endophyte infection moderated the carbon dioxide induced rise in soluble protein fraction.
- Intervention effect Endophyte infection moderated the carbon dioxide induced rise in insoluble protein fraction.