Complex Competitive Relationships Among Genotypes of Three Perennial Grasses: Implications for Species Coexistence
作者： Douglas R. Taylor , Lonnie W. Aarssen
DOI: 10.1086/285100
关键词: Repens 、 Agropyron 、 Botany 、 Interspecific competition 、 Poa pratensis 、 Phleum 、 Biology 、 Abundance (ecology) 、 Gene–environment interaction 、 Plant ecology
摘要: Competitive relationships were studied among genotypes of Agropyron repens, Poa pratensis, and Phleum pratense collected from a grassland community in southeastern Ontario. Field surveys revealed no significant correlations abundance the three species within randomly placed survey plots. The greater performance target plants removal plots versus control for all vegetation-removal experiment, however, suggests that each these was suppressed by competitive interactions field. One clone (genotype) 10 sites (7-cm2 neighborhoods) community. Each genotype propagated vegetatively grown greenhouse monocultures pairwise mixtures with other Differences relative ability or measured as differences between yield-suppression coefficients two components mixture. A s...
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