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Regulation mechanisms in population dynamics of segetal plants

, : Regulation mechanisms in population dynamics of segetal plants. Berichte ueber Landwirtschaft Sonderheft 0(209): 68-84

Within the last years opinions have changed concerning the role and importance of weeds accompanying the crop plant in agroecosystems. Attention ha; been paid especially to questions related to fundamentals of regulating mechanisms in weed populations. This applies as well to phenotypic adaptations within the life-cycle as to evolutionary tendencies of a longer distance caused by changing agricultural practices. Promising knowledge concerning the course of population dynamics are gained by modelling and simulation experiments within the last time. Nevertheless to use the results of these attempts successfully additional information are needed by extending the pool of available primary dates.


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Wylie, J.L.; Moses, S.; Babcock, R.; Jolly, A.; Giercke, S.; Hammond, G., 1998: Comparative evaluation of chlamydiazyme, PACE 2, and AMP-CT assays for detection of Chlamydia trachomatis in endocervical specimens. We conducted a comparative evaluation of the Chlamydiazyme (Abbott Laboratories), PACE 2 (Gen-Probe), and AMP-CT (Gen-Probe) assays for the detection of Chlamydia trachomatis in endocervical samples. Specimens from 787 females were included in the...

Anonymous, 2002: HIV patients seek better dental care. British Dental Journal 192(11): 609-609

Simard, M.J.see; Bergeron, Y.; Sirois, L., 1994: The impact of disturbances on the germination and early survival of tree conifer species in different boreal stands. Bulletin of the Ecological Society of America 75(2 PART 2): 212

Budd, J.M.L., 2004: How much feedback from visual cortex to lateral geniculate nucleus in cat: a perspective. Corticothalamic feedback is believed to play an important role in selectively regulating the flow of sensory information from thalamus to cortex. But despite its importance, the size and nature of corticothalamic pathway connectivity is not fully...

Anonymous, 2016: Adult film ratings to stop kids lighting up. A growing body of evidence showing that on-screen smoking makes more kids light up is increasing pressure to assign adult ratings to films that show smoking. Gary Humphreys reports.

Rivenson, S.P.lma-Suloga, E., 1974: Argentinian tonic for animal health. Agricultura de las Americas: 23 (4) 36

Lane, N.E.; Fries, J.F., 1988: Relationship of running to osteoarthritis and bone density. Comprehensive Therapy 14(2): 7-15

Kyser T.K., 1988: Geochemical indicators of paleoclimates. Program with Abstracts - Geological Association of Canada(Mineralogical Association of Canada(Canadian Geophysical Union, Joint Annual Meeting 13: A69

Tammisto T., 1977: Analgesics in post operative pain relief. Upsala Journal Of Medical Sciences Supplement: 1

Cavalli, A. (Italy), 1985: An icecream-making household appliance incorporating an automatic stirring paddle stopping device. An ice cream freezer for household use comprises an electrically driven stirrer connected to means for sensing the ice cream consistency by measuring the electric input to the motor. When the input current increases to a pre-set value, the stirrer...