Selection for improved adaptation of white clover to low phosphorus and acid soils

摘要: A total of 490 white clover genotypes were grown in competition with Agrostis tenuis and repeatedly defoliated, a glasshouse trial. The percentage change shoot yield from the first to last harvest (harvest 6) was negatively correlated soil-P level which ecotypes collected. High- low-yielding selected this study compared field trial on low-P soil (12 mg Olsen P/kg soil), grazed mixed species sward. Over year there no significant difference spread into sward, over three years persistence. Selection glasshouses for is unlikely improve edaphic stress tolerance field.