Results 261 to 270 of about 7,599,772 (310)
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Corn Planting Date and Plant Population
Journal of Production Agriculture, 1994Predictions of yield responses to planting date and plant population in corn (Zea mays L.) are necessary in order to match plant population to a particular planting date, and also to make replant decisions. Much of the published research on these factors is relatively old.
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Plant Growth and Population Dynamics
The main purpose of quantitative nematological research is twofold. First, to develop mathematical models that contribute to theory building. Second, for farmers, to achieve optimal financial returns of crops in the presence of plant-parasitic nematodes.Schomaker, Corrie H. +2 more
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1994
In Central Europe plant population ecology as a relatively young science is receiving more and more interest among ecologists. The recently published book on population ecology by Schmid and Stocklin (1991) and the textbook of Urbanska (1992), both in German, illustrate this.
Walter Seidling +2 more
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In Central Europe plant population ecology as a relatively young science is receiving more and more interest among ecologists. The recently published book on population ecology by Schmid and Stocklin (1991) and the textbook of Urbanska (1992), both in German, illustrate this.
Walter Seidling +2 more
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Population Viability in Plants
2003Population viability in plants , Population viability in plants , مرکز فناوری اطلاعات و اطلاع رسانی ...
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Pollination and Plant Populations
Science, 2000ECOLOGY AND EVOLUTION The highly specialized and coevolved relationships between flowers and their pollinators—morphological, physiological, and chemical—have fascinated biologists since Darwin. Most studies have concentrated on mechanisms of the interactions and the immediate selective benefits for the plant and animal partners; in the case of the ...
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2000
Identification of an endangered species is not a trivial task. Information on some species is so limited that it is impossible to tell if they are threatened: indeed, it is likely that there are many species, particularly in the tropics, whose existence will never be known.
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Identification of an endangered species is not a trivial task. Information on some species is so limited that it is impossible to tell if they are threatened: indeed, it is likely that there are many species, particularly in the tropics, whose existence will never be known.
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The population dynamics of plants
Philosophical Transactions of the Royal Society of London. Series B: Biological Sciences, 1990Abstract Long-term studies of plant populations are reviewed, and their dynamics summarized in three categories. Many short-lived plants have ephemeral, pulsed dynamics lasting only a single generation, with recruitment determined almost entirely by germination biology and by the frequency and intensity of disturbance.
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Equilibrium in the Population of the Plants
2019On the basis Mendel's experiments, a mathematical model is constructed that describes the results of these experiments in a wide range of parameters. This model is compared with the Hardy-Weinberg logistic model based only on probabilistic ideas about the presence of dominant and recessive alleles in the chromosomes of living organisms.
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2007
Plants exhibit an extraordinary range of sizes and generation times, from single-celled algae with body sizes of the order of 5 mm and generation times of the order of 1 day, to massive forest trees more than 50 m tall that can live for over 1000 years.
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Plants exhibit an extraordinary range of sizes and generation times, from single-celled algae with body sizes of the order of 5 mm and generation times of the order of 1 day, to massive forest trees more than 50 m tall that can live for over 1000 years.
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