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The life history of Leontice leontopetalum was studied under field and controlled conditions in connection with its survival in ploughed fields. At ge...

Seed longevity and germination in various situations were examined in Rumex crispus and R. obtusifolius. The % germination of both spp. was significan...

The idea that human impacts on natural systems might trigger large-scale, social-ecological 'crises' or 'breakdowns' is attracting increasing scientif...

The unwanted development of dense understorey vegetation composed of resource-acquisitive, tall plant species competing strongly with tree regeneratio...

Pure swards of S48 timothy and S215 meadow fescue, grown from seed in large concrete containers out of doors, were cut (a) every 4 weeks during summer...

Mixtures of equal numbers of plants of different barley varieties or of a barley variety and an oat variety were grown in 5 field trials and 1 glassho...

The ability to predict insect development in field situations is fundamental to pest management programmes and in the understanding of insect phenolog...

Seeds from 11 ruderal spp. collected from localities in S. Warwickshire were stored outdoors in cylinders sunk in the ground, and seed viability was t...

Overnight respiration losses of whole plants were measured in a young maize crop grown in the humid tropic zone of Western Nigeria. In an older crop, ...

Achenes of 7 species of Carduus, Cirsium and Onopordum were collected in August-September and mixed with the top 2.5 or 7.5 cm of soil which was then ...