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Sexual reproduction and natural seed production in Eichhornia crassipes was examined in a total of 19 populations from 2 tropical regions (Lower Amazo...
Read moreSeed longevity and germination in various situations were examined in Rumex crispus and R. obtusifolius. The % germination of both spp. was significan...
Read moreIntroduced species that spread and become invasive are recognised as a major threat to global biological diversity, ecosystem resilience and economic ...
Read moreLeaf area index and stomatal conductance of the bracken (Pteridium aquilinum) canopy within a pine forest were combined to give canopy conductances. T...
Read moreSingle and combined treatments of 2,4,5-T were applied by paintbrush to cut Betula pendula and B. pubescens stumps and fosamine was applied by foliar ...
Read moreResistance against pesticides is a widespread and increasing problem. The control of pesticide dose and the mixing of pesticides have been proposed as...
Read moreAtrazine-resistant or -susceptible biotypes of Senecio vulgaris and Amaranthus retroflexus were compared with regard to DM production, resource alloca...
Read moreCarduus nutans spp. nutans was introduced into Australia in 1950, since when it has spread into several agricultural areas. Models were developed to d...
Read moreThe influence of competition on ramet populations of C. esculentus was studied experimentally at a site near Harare, Zimbabwe. A range of ramet densit...
Read moreGreenhouse experiments showed that seeds of this Australian tree germinated within 3 days after planting, even under water. Greater ht. growth was obt...
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