Phenotypic plasticity as an index of drought tolerance in three Patagonian steppe grasses
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چکیده
منابع مشابه
Phenotypic plasticity as an index of drought tolerance in three Patagonian steppe grasses.
BACKGROUND AND AIMS Despite general agreement regarding the adaptive importance of plasticity, evidence for the role of environmental resource availability in plants is scarce. In arid and semi-arid environments, the persistence and dominance of perennial species depends on their capacity to tolerate drought: tolerance could be given on one extreme by fixed traits and, on the other, by plastic ...
متن کاملPhenotypic plasticity as an index of drought tolerance in three Patagonian steppe
1 Despite general agreement on the adaptive importance of plasticity, evidence 2 regarding the role of environmental resource availability is scarce, at least in plants. The 3 main hypothesis was the traditional interspecific trade-off hypothesis applied to dryland 4 species; those most tolerant to drought have lower potential growth, and therefore also 5 have the lowest plasticity -here specif...
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Drought stress is one of the most limiting abiotic stresses affecting growth, production and survival of plants in many areas of the world, and is expected to intensify considering the trend of climate change. Grass species are important for the sustainability of agricultural systems, forage resources for animal farming and landscapes. Grass species adapt to water deficit by different morpholog...
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A decrease in foliar δ (13)C with increasing precipitation is a common tendency in steppe plants. However, the rate of decrease has been reported to differ between different species or populations. We here hypothesized that plant populations in the same habitat of temperate steppes may not differ in foliar δ (13)C response patterns to precipitation, but could differ in the levels of plasticity ...
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Nitrogen limits plant growth in almost all terrestrial ecosystems, even in low-precipitation ecosystems. Vegetation in arid ecosystems is usually composed of two dominant plant-functional types, grasses and shrubs, which have different rooting and water acquisition patterns. These plant-functional types may respond differently to N availability because they have different strategies to absorb a...
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ژورنال
عنوان ژورنال: Annals of Botany
سال: 2012
ISSN: 1095-8290,0305-7364
DOI: 10.1093/aob/mcs147