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Transpiration rates of Douglas-fir trees (Pseudotsuga menziesii) were measured in the field, using tritiated water (HTO) as a tracer for water. Sites ...
Read moreOn plots of oats and barley brown hares grazed much more heavily on the outer rows, alongside the space between the plots, than on inner rows. On barl...
Read moreLeaf expansion was investigated in 10 ecotypes of Lolium perenne and 7 of Dactylis glomerata. Seasonal sowings revealed a regular cline in relative ra...
Read moreNull balance diffusion porometers were used to estimate the variation of stomatal conductance (gs) in a Sitka spruce plantation. Samples were stratifi...
Read moreComparisons made over a wide range of soil matric potentials showed minimum resistance of 0.5 s/cm for cotton and 1.0 s/cm for maize. Readings made in...
Read moreA simple mathematical model is presented describing the effects of N and light on the vegetative growth of grass/legume swards, consisting of a set of...
Read moreResults of some experiments on a range of species, including maize, castor and sunflowers, did not appear to be in accordance with the claim that appr...
Read moreAgricultural and invasive weeds are major threats to managed and natural ecosystems, costing billions of dollars annually. Models for arable and invas...
Read moreDuring 1971 micro-meteorological measurements were made in March, May, July, August and October in a 7-year-old hedgerow-type apple orchard. The albed...
Read moreMatrix population models are widely used to describe population dynamics, conduct population viability analyses and derive management recommendations ...
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