New PDF release: Allelopathy: Basic and applied aspects

By S. J. H. Rizvi, H. Haque, V. K. Singh, V. Rizvi (auth.), S. J. H. Rizvi, V. Rizvi (eds.)

ISBN-10: 9401050481

ISBN-13: 9789401050487

ISBN-10: 9401123764

ISBN-13: 9789401123761

Science is basically a descriptive and experimental gadget. It observes nature, constructs hypotheses, plans experiments and proposes theories. the speculation isn't meditated because the 'final truth', yet continues to be ever topic to differences, adjustments and rejections. The technology of allelopathy similarly has emerged, and exists on the same footing; our endeavour may be to maintain it clean and cutting edge with addition of more moderen in­ formation and ideas with the rejection of older rules and antiquated thoughts. up to now few a long time encouraging effects were received in quite a few features of allelopathic researches. even though, as well as carrying on with efforts in a lot of these instructions, consistent makes an attempt are to be made to explain the mechanics of allelopathic job in molecular phrases and to find methods and potential to take advantage of it for the welfare of mankind. We consider that multidisciplinary efforts are the one device to accomplish this objective. it's the desire of the editors that this publication will function a record which identifies an built-in process, in which study either to appreciate and take advantage of allelopathy might be carried out. the current quantity arose out of an try to collect eminent scientists in allelopathy to explain their paintings, of a hugely various nature, less than one title.

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Extra resources for Allelopathy: Basic and applied aspects

Example text

An example of his usual results were those obtained using annual millet as the crop plant and Hyparrhenia sp. as the perennial grass. Large quantities of nitrogen were mineralized during the first year in all three types of lysimeters. Under the millet, virtually a steady state was reached with respect to both yield and the nitrogen lost to the crop and to the percolate that year. The nitrate in the percolate of the cropped soil had cyclic changes associated with the growth and maturation of the millet.

1 Secondary effects Reports of allelopathic phenomena most frequently identify effects which are readily observed in the field or under controlled conditions. Delayed or inhibited germination and the stimulation or inhibition of root and shoot growth are often reported. Yet, the visible effects of allelopathy are merely secondary expressions of primary effects upon metabolic processes (Winter, 1961). 2 Primary effects Many possible primary effects on plant metabolism, affecting the majority of vital processes, have been suggested (Rice, 1984) but few have been rigorously investigated.

Cheng, H. H. and Harsh, J. B. (1987) Oxidation of phenolic acids by soil iron and manganese oxides. Soil Sci. Soc. Amer. , 51, 352-6. Mandava, N. B. (1985) Chemistry and biology of allelopathic agents, in The Chemistry of Allelopathy (ed. A. C. Thompson), ACS Symp. Ser. 268, Amer. Chern. , Washington, DC, pp. 33-54. Rice, E. L. (1984) Allelopathy, 2nd edn, Academic Press, Orlando, Florida. Rice, E. L. (1987) Allelopathy: An Overview, in Allelochemicals: Role in Agriculture and Forestry (ed. G.

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Allelopathy: Basic and applied aspects by S. J. H. Rizvi, H. Haque, V. K. Singh, V. Rizvi (auth.), S. J. H. Rizvi, V. Rizvi (eds.)


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