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There was a marked diurnal variation of light interception by hedgerow orchards on sunny days in June and July. This variation was considerably reduce...

Patterns of light interception, in both time and space, were measured during 1973 and 1974 in apple orchards. Several planting systems were investigat...

Light transmittance and reflectance of sun and shade leaves of apple (cv. Golden Delicious) were measured from May to September over the 380-700 nm wa...

Extracts and leachates of the grass Aristida adscensionis inhibited the growth of Rhizobium in sterile culture. The results confirm previous studies o...

Achenes of Polygonum lapathifolium, P. pensylvanicum and P. persicaria are commonly eaten by cottontail rabbits in southern Ontario. Feeding experimen...

Sitka spruce seedlings were grown in horticultural peat supplied with either large or small amounts of P and K. K decreased the transpiration rate per...

The serpentine tailings from asbestos mines in southeastern Quebec cover 5.5 km2 and are largely devoid of vegetation. The tailings have a high pH, ve...

Litter bags, containing aspen or aster leaf litter, were used to compare decomposition in burned and adjacent unburned areas in forests in northeaster...

Rapid estimates of termite mounds exceeding 1 m in height were made by roadside counts covering most of Uganda. The error in the counts was estimated ...

The evolution of natural waterholes is attributed to the erosion of surrounding termitaria by wildlife. The physico-chemical characteristics of soil f...