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The duration of the flowering period and the fraction of open flowers over time were defined as functions of growing degree-days for 5 almond cultivar...
Read moreThe nitrogenase activity of C. scoparius measured at indigenous soil temp. at intervals during the year showed 2 apparent maxima, in early and late sp...
Read moreManagers must understand the effects of stressors on ecosystems in order to identify thresholds of harm but, to be meaningful, thresholds will usually...
Read moreWe find three intertwined ambitions that drove federal legislation over wildlife and biodiversity at the beginning of the 20th Century: establishment ...
Read moreLife tables for populations of Hylemya (Erioischia) brassicae (Bch.) on cabbage crops in Canada [cf. RAE/A 60, 538] and England [50, p. 286] are analy...
Read moreResults are reported from a study of leaf area dynamics in 100 plots in stands of lodgepole pine (Pinus contorta var. latifolia, age range 67-134 yr) ...
Read moreTheoretical analysis of a simple model, in which tree growth in even-aged stands is calculated as the product of unit leaf rate (E, increase in plant ...
Read moreFrom an ecological and environmental point of view, livestock husbandry plays a very important role as there is a valuable interaction between livesto...
Read moreThe population dynamics of the annual weed Emex australis are described for 3 sites in south-eastern Australia. A graphical test showed a random spati...
Read moreThe nature of change in genetic structure during self-thinning of crowded mixtures of Phlox drummondii genotypes was investigated with (1) 10 commerci...
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