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Seed collected from natural stands of P. menziesii growing at (a) 250, (b) 520 and (c) 880 m alt. in Oregon, and from a cross between trees in (a) and...
Read moreThe great changes in Chinese agriculture during the past 10 years have been accompanied by significant deterioration of the rural environment. Among t...
Read moreAn empirical model used to standardize data on root investigations was P = 100 (1-e-fx) where P was the percentage of roots in x cm of soil, and f was...
Read moreMeasurements were made during the winter of 1977/78 at the Welsh Plant Breeding Station of changes of leaf, stolon and root biomass, stolon length and...
Read moreThe factors to be considered on whether there is a need to stock a fishery resource, the environmental impacts of stocking and habitat restoration to ...
Read moreSenescence and death of plant parts are frequently accelerated by various stresses to which plants are subjected. The dynamics of these responses can ...
Read morePlant productivity is influenced by water status, temperature, and photosynthetically active radiation, the effects of which provide an environmental ...
Read moreFurther observations in Britain [cf. RAE/A 60, 2745] showed that the net annual production of lime saplings (Tilia vulgaris) was 23.4 g dry matter/sap...
Read moreThis presentation outlines the monitoring activities of Forest Research, focusing on understanding the impacts of nitrogen deposition on forest health...
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