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Following an introduction the topic of past human population is explored focusing on population size and growth, economic growth and increasing econom...
Read moreThe authors had earlier [see HbA 44, 3551] described a computer program in which plant growth-analysis quantities of the general form (1/Y)(dY/dX), Z/...
Read moreVarious growth parameters of young seedlings of tall fescue cv. S170 grown at 10, 15, 20, 25 and 30 deg C were recorded. At 25 deg C individual leaves...
Read moreThe following is virtually the author's summary of this second part of a series [cf. RAE A 59 2659]. Experiments on saplings of lime (Tilia) under con...
Read moreCompetition from weeds (Agropyron repens, Stellaria media, Poa annua and others) in the first growing season hastened foliage senescence and reduced b...
Read moreSeed germination in Agrostis capillaris, Holcus lanatus, Poa trivialis, Cynosurus cristatus and Festuca rubra was investigated in the dark at temp. ra...
Read moreGrowth characteristics and response to atrazine were studied in atrazine resistant (R) and susceptible (S) populations of Amaranthus retroflexus and A...
Read morePlacement of fabric of appropriate mesh-size on or under the soil surface was examined as a possible means of constraining seedling growth and root pe...
Read moreWhen perennial ryegrass plants were subjected to 1 cycle of soil drying, to repeated cycles of drying, or when they were grown in dry soils, the RGR o...
Read moreSwards dominated by western wheatgrass (Agropyron smithii) at 2 sites in SE Montana were continuously fumigated with 2, 4 or 7 p.p.h.m. SO2 from mid-M...
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