997 resultados para Study of reality


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Due to the great economic importance of the cotton crop to Brazil, a systematic series of research work has been carried out in recent years dealing with its mineral nutrition an fertilization. A summary of recent finding is given in the following sections.

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v.9:no.2(1930)

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Magdeburg, Univ., Fak. für Verfahrens- und Systemtechnik, Diss., 2015

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n.s. no.16(1984)

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The developmental degree of the wax glands was compared in four Meliponini bees, that produce different quantities of wax. The histological data and height average of the wax epithelium during the time in which the maximum production of wax is expected, are in accordance with the rates of wax produced by the species. In Lestrimelitta limao (Smith, 1863) a species which has cleptobiotic habits, and frequently rob wax from the attacked colonies, the height of wax epithelium was the lowest among the studied species. The cells seem to show an abnormal vacuolated cytoplasm, in the phase in which they would be producing wax.

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v.17:no.5(1929)

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v.24:no.31(1943)