Welsh Plant Breeding Station, Plas Gogerddan, Aberystwyth, Wales, UK.
Theor Appl Genet. 1988 Sep;76(3):361-8. doi: 10.1007/BF00265335.
Analysis of the competitive interactions among a set of white clover and perennial ryegrass populations indicated that the intra-specific pressures exerted by the white clover plants upon themselves were significantly greater than the inter-specific pressures they exerted upon the perennial ryegrass. This partitioning of competitive effects could not be carried out on the ryegrass populations, however, because the data required the fitting of separate models to monocultures and duocultures. Although not significant at this stage of the experiment, trends were detected among some of the clover-ryegrass duocultures that could be related to their previous coexistence. The results are briefly discussed in relation to the problems surrounding the measurement of competitive effects among species that ideally require very different managements.
对一组白三叶草和多年生黑麦草种群的竞争相互作用的分析表明，白三叶草植物对自身施加的种内压力明显大于它们对多年生黑麦草施加的种间压力。然而，这种竞争效应的划分在黑麦草种群中无法进行，因为数据需要分别对单种培养物和双种培养物进行拟合。尽管在实验的这个阶段并不显著，但在一些白三叶草-黑麦草双种培养物中检测到了一些趋势，这些趋势可能与它们之前的共存有关。结果简要讨论了在理想情况下需要非常不同管理的物种之间测量竞争效应时所存在的问题。
