Effect of elevated CO2 on orchard grass and red clover grown in mixture at two levels of nitrogen or water supply

Meier, M.; Fuhrer, Jürg

doi:10.1016/s0098-8472(97)00020-8

Cited by 9 publications

(5 citation statements)

References 33 publications

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“…We hypothesize that a marginal N limitation might have been involved in the low growth response to elevated CO 2 by causing mobilization of leaf N from ageing or partially shaded leaves sooner in the elevated CO 2 plants than in the ambient CO 2 plants, to support new leaf and root growth. However Meier & Fuhrer (1997) observed that the negative effects of N limitation were reduced by elevated CO 2 .…”

Section: Discussionmentioning

confidence: 95%

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Productivity of Trifolium subterraneum and Phalaris aquatica under warmer, high CO₂ conditions

2001

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Summary• Despite the importance of grass-legume pastoral ecosystems worldwide, there is little known about the impacts of concurrent increase in temperature and atmospheric CO 2 concentration on their productivity.• Pure and mixed swards of subterranean clover ( Trifolium subterraneum ) and phalaris ( Phalaris aquatica ) were established under ambient and warmed (+3.4 ° C) air temperatures, at ambient and 690 µ mol mol -1 CO 2 concentrations in field tunnels in temperate south-eastern Australia.• Over one year, elevated CO 2 increased clover foliage growth in the monoculture by 19%, and by 31% in the mixture. Warming reduced clover monoculture herbage production at ambient CO 2 by 28% and reduced the growth enhancement by elevated CO 2 to +8%. Forage growth of phalaris monoculture was not affected significantly by either factor. Forage growth of the mixture was increased by 34% in response to higher CO 2 , but unaffected by warming. Elevated CO 2 combined with warming increased forage growth of the mixed sward by 23%.• Concurrent rise in atmospheric CO 2 concentration and temperature increased productivity of subterranean clover-phalaris swards. However, longer term effects on species competition and persistence may modify this conclusion.

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Section: Discussionmentioning

confidence: 95%

“…3). Meier & Fuhrer (1997) observed that the positive effect of CO 2 on growth of a legume‐grass mixture declined with time when N supply was limited. Throughout the present experiment the mineral N content of the soil was high (111–83 kg N ha −1 ).…”

Section: Discussionmentioning

confidence: 99%

Productivity of Trifolium subterraneum and Phalaris aquatica under warmer, high CO₂ conditions

2001

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“…An increase of the root:shoot biomass under water deficit conditions has been described for both F. arundinacea (Huang and Fry, 1998) and D. glomerata genotypes (Ashenden et al, 1975; Meier and Fuhrer, 1997) and has been related to an enhancement of drought tolerance through an increase of the explored soil volume and therefore the available soil water for the plant (Lambers et al, 1998; Walck et al, 2001; Karcher et al, 2008). However, such a relationship has not been observed in all studies.…”

Section: Discussionmentioning

confidence: 99%

Leaf and Plant Water Use Efficiency in Cocksfoot and Tall Fescue Accessions under Differing Soil Water Availability

et al. 2012

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Water availability is one of the most important limiting factors in plant production worldwide. Such limitation is expected to increase in regions with a Mediterranean climate type during the next few decades. The objectives of this study were to evaluate plant water use efficiency (WUE) in contrasting accessions of two perennial grasses, Dactylis glomerata L. (cocksfoot) and Festuca arundinacea Schreb. [syn. Lolium arundinaceum (Schreb.) Darbysh.] (tall fescue), under two different water availability regimes and to study the relationship with instantaneous and intrinsic leaf WUE. Six accessions of D. glomerata and five accessions of F. arundinacea were grown under well irrigated and progressive drought conditions. Plant biomass, water consumption, and gas exchange parameters were measured to estimate the plant and leaf WUE. Few differences in biomass accumulation and gas exchange parameters were observed among the accessions within both species. Plant WUE and total plant biomass accumulation were positively correlated in both species and water treatment. The leaf WUE parameters did not show a consistent relationship with the plant WUE in either species. In contrast, the stomatal conductance decreased as the plant WUE increased in water-limited D. glomerata, suggesting that stomatal conductance may be a good estimator of plant WUE under water deficit conditions.

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“…For example, restricting the nutrient concentration to a low level of 1.0 mS·cm −1 blocked the effect of CO 2 enrichment on growth due to nutrient deficiency, whereas CO 2 enrichment with a high nutrient concentration of 4.0 mS·cm −1 increased growth and enhanced plant quality (Meier and Fuhrer, 1997). In Alstroemeria, the combined effect of CO 2 enrichment and supplemental lighting enhanced flower stem growth and prevented flower abortion more significantly than that of either factor alone (Van Labeke and Dambre, 1993).…”

Section: Discussionmentioning

confidence: 99%

Effect of CO<sub>2</sub> Enrichment on Growth and Flowering of <i>Phalaenopsis</i>

et al. 2017

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Effect of elevated CO2 on orchard grass and red clover grown in mixture at two levels of nitrogen or water supply

Cited by 9 publications

References 33 publications

Productivity of Trifolium subterraneum and Phalaris aquatica under warmer, high CO₂ conditions

Productivity of Trifolium subterraneum and Phalaris aquatica under warmer, high CO₂ conditions

Leaf and Plant Water Use Efficiency in Cocksfoot and Tall Fescue Accessions under Differing Soil Water Availability

Effect of CO<sub>2</sub> Enrichment on Growth and Flowering of <i>Phalaenopsis</i>

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Effect of elevated CO2 on orchard grass and red clover grown in mixture at two levels of nitrogen or water supply

Cited by 9 publications

References 33 publications

Productivity of Trifolium subterraneum and Phalaris aquatica under warmer, high CO2 conditions

Productivity of Trifolium subterraneum and Phalaris aquatica under warmer, high CO2 conditions

Leaf and Plant Water Use Efficiency in Cocksfoot and Tall Fescue Accessions under Differing Soil Water Availability

Effect of CO<sub>2</sub> Enrichment on Growth and Flowering of <i>Phalaenopsis</i>

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Productivity of Trifolium subterraneum and Phalaris aquatica under warmer, high CO₂ conditions

Productivity of Trifolium subterraneum and Phalaris aquatica under warmer, high CO₂ conditions