Chromosomenzahlen von Pflanzen der Insel Kuba II     

Reinhard Fritsch 《Genetic Resources and Crop Evolution》1972,19(1):305-313

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Zur Samenmorphologie des Kulturmohns (Papaver somniferum L.)     

Dr. Reinhard Fritsch 《Genetic Resources and Crop Evolution》1979,27(2):217-227

Zusammenfassung Von zahlreichen Sippen der subsp.somniferum sowie von zwei diploiden und mehreren tetraploiden Herkünften der subsp.setigerum (DC.)Corb. vonPapaver somniferum L. wurde die Samenmorphologie vergleichend untersucht. Die Variabilität ist bei subsp.somniferum außerordentlich groß und schließt in sich den Variabilitätsbereich vieler Merkmale beider Ploidiestufen von subsp.setigerum mit ein. Die diploidensetigerum-Sippen lassen sich von vielensomniferum-Sippen anhand der Samen nicht unterscheiden. Die Samen der tetraploiden Sippen lassen sich mit Hilfe von Merkmalen der Samenoberfläche nicht in jedem Fall von Samen besonders kleinsamigersomniferum-Sippen abtrennen. Die Bedeutung der Ergebnisse für die Bearbeitung archäologischer Samenfunde wird kurz diskutiert.

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Seed morphology of cultivated poppy (Papaver somniferum L.)

Summary Length, width and seed coat structure of many different races of subsp.somniferum, of two diploid and several tetraploid races of subsp.setigerum were examined. Subsp.somniferum proved to be extremely variable and to cover also the variability of both chromosome races of subsp.setigerum. By seed morphology, diploid races of subsp.setigerum were not to distinguish from most races of subsp.somniferum, and tetraploid races of subsp.setigerum were difficult to distinguish from small-seeded races of subsp.somniferum. The importance of these findings for determination of archaeological remains of poppy seed is briefly discussed.

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(Papaver somniferum L.)

- subsp.somniferum, subsp.setigerum (DC.) Corb. Pavaver somniferum L. somniferum setigerum. subsp.setigerum subsp.somniferum. , , subsp.somniferum ( ). .

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A soil-diagnostic key to manage saline and waterlogged catchments in the Mt Lofty Ranges, South Australia   总被引：1，自引：0，他引：1  

R.W. Fitzpatrick  J.W. Cox  E. Fritsch  I.D. Hollingsworth 《Soil Use and Management》1994,10(4):145-152

Abstract. Dryland salinity in the Mt Lofty Ranges, South Australia has developed as a result of native vegetation being replaced with pastures that use less water. Groundwaters have risen and mobilized ions (sodium, chloride, sulphate and iron) stored within deeply weathered micaceous sandstones and schists. Salinity resulting from sodium chloride is common in agricultural catchments around Australia, but saline sulphidic soils (with sulphate and iron) have only been studied in South Australia. Salinity is also associated with waterlogging and secondary sodicity. The amelioration of dryland salinity and waterlogging involves management of whole catchments, not just the area that is currently saline. It is imperative that all processes operating in saline catchments and their interactions are clearly understood.
Salinity, waterlogging, sodicity, sulphidization and water erosion were studied in four saline sub-catchments in the Mt Lofty Ranges. Grey (bleached) and yellow mottles (iron depletions) or black and red stains (iron concentrations) develop under certain conditions of water saturation, salinization, sulphidization, sodification and water erosion in surface and subsurface horizons. The amounts of these diagnostic features were used to develop a farm planning key for managing saline catchments in the Mt Lofty Ranges. Using soil diagnostic features, soil-water processes in saline catchments are easily identified by farmers and land managers. Management options (e.g. fencing, tree planting and drainage) are then targeted to specific soils and can be easily incorporated by agricultural advisers into farm management plans. We recommend that soil diagnostic features which help predict the onset of land degradation be used in the production of land capability maps for farm planning purposes.  相似文献   

Taxonomy and evolution of cultivated plants: Literature review 1983/1984     

Jürgen Schultze-Motel  Reinhard Fritsch  Karl Hammer  Peter Hanelt  Joachim Kruse  Harald Ohle  Klaus Pistrick 《Genetic Resources and Crop Evolution》1985,33(2):307-324

Summary Important papers on taxonomy and evolution of cultivated plants published in 1983 and 1984 were complied and briefly discussed.

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Taxonomie und Evolution der Kulturpflanzen: Literaturübersicht 1983/1984

Zusammenfassung Wichtige Arbeiten über Taxonomie und Evolution der Kulturpflanzen aus den Jahren 1983 und 1984 wurden zusammengestellt und kurz kommentiert.

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: 1983–1984

, 1983 1984 . .

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Report of a collecting mission to the Georgian SSR 1983 for the study of indigenous material of cultivated plants     

Rusudan K. Beridze  Reinhard Fritsch  Klaus Pistrick  Irina M. Sakvarelidze 《Genetic Resources and Crop Evolution》1984,32(4):217-227

Summary In the summer 1983 the joint activities for the collection of autochthonous material of cultivated plants have been continued in the outermost western regions of Georgia (Abkhazia, Megrelia). Altogether 434 accessions could be obtained, more than one third of them being grain legumes, and one fourth vegetables and spice plants, resp. The remaining part includes mainly maize. Gene-erosion is very advanced especially for cereals and some grain legumes besidesPhaseolus vulgaris for which an astonishing genetic variability could be confirmed within the local material. Some details of the accessions regarding botanical interest and breeding value have been outlined. The collecting work should be continued.

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Bericht über eine Reise in die Georgische SSR 1983 zur Sammlung indigenen Materials von Kulturpflanzen

Zusammenfassung Im Sommer 1983 wurde eine weitere gemeinsame Reise zur Sammlung autochthonen Kulturpflanzenmaterials unternommen, die in die westlichen Teile von West-Georgien (Abchasien, Megrelien) führte. Es konnten insgesamt 434 Proben gesammelt werden, von denen mehr als ein Drittel Körnerleguminosen und je etwa ein Viertel Gemüse- und Gewürzpflanzen waren. Getreide war fast ausschließlich durch Mais vertreten. Die Gen-Erosion ist bei Getreide und einigen Körnerleguminosen bereits sehr weit fortgeschritten, während beiPhaseolus vulgaris wiederum eine erstaunliche Vielfalt an Formen festgestellt werden konnte. Besonders interessantes Material von Knoblauch, Blattkohlformen und einigen Spinatgemüsen wird kurz vorgestellt. Die Sammeltätigkeit sollte fortgesetzt werden.

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1983 .

1983 . ¶rt; , (, ). 434 , , . . , . , «» . .

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Podzolization as a deferralitization process: a study of an Acrisol–Podzol sequence derived from Palaeozoic sandstones in the northern upper Amazon Basin     

N.R. do Nascimento  G.T. Bueno  E. Fritsch  A.J. Herbillon  Th. Allard  A.J. Melfi  R. Astolfo  H. Boucher  & Y. Li 《European Journal of Soil Science》2004,55(3):523-538

Morphological, geochemical and mineralogical studies were carried out in a representative soil catena of the low‐elevation plateaux of the upper Amazon Basin to interpret the steps and mechanisms involved in the podzolization of low‐activity clay soils. The soils are derived from Palaeozoic sandstones. They consist of Hydromorphic Podzols under tree savannah in the depressions of the plateaux and predominantly of Acrisols covered by evergreen forest elsewhere. Incipient podzolization in the uppermost Acrisols is related to the formation of organic‐rich A and Bhs horizons slightly depleted in fine‐size particles by both mechanical particle transfer and weathering. Weathering of secondary minerals by organic acids and formation of organo‐metallic complexes act simultaneously over short distances. Their vertical transfer is limited. Selective dissolution of aluminous goethite, then gibbsite and finally kaolinite favour the preferential cheluviation of first Fe and secondly Al. The relatively small amount of organo‐metallic complexes produced is related to the quartzitic parent materials, and the predominance of Al over Fe in the spodic horizons is due to the importance of gibbsite in these low‐activity clay soils. Morphologically well‐expressed podzols occur in strongly iron‐depleted topsoils of the depression. Mechanical transfer and weathering of gibbsite and kaolinite by organic acids is enhanced and leads to residual accumulation of sands. Organo‐metallic complexes are translocated in strongly permeable sandy horizons and impregnate at depth the macro‐voids of embedded soil and saprolite materials to form the spodic Bs and 2BCs horizons. Mechanical transfer of black particulate organic compounds devoid of metals has occurred later within the sandy horizons of the podzols. Their vertical transfer has formed well‐differentiated A and Bh horizons. Their lateral removal by groundwater favours the development of an albic E horizon. In an open and waterlogged environment, the general trend is therefore towards the removal of all the metals that have initially accumulated as a response to the ferralitization process and have temporarily been sequestrated in organic complexes in previous stages of soil podzolization.  相似文献   

Characterization of interdigital glands in the Asian elephant (Elephas maximus).     

L W Lamps  B R Smoller  L E Rasmussen  B E Slade  G Fritsch  T E Goodwin 《Research in veterinary science》2001,71(3):197-200

In the Asian elephant, wetness akin to perspiration is commonly observed on the cuticles and interdigital areas of the feet; this observation has lead to speculation regarding the existence of an interdigital gland. Our goal was to search for interdigital glands and characterise them morphologically, histochemically, and immunohistochemically. Necropsy samples of interdigital areas from two Asian elephants were obtained. Multiple sections were fixed and processed routinely, then stained with hematoxylin/eosin and differential mucin stains. Immunohistochemistry was also performed for cytokeratins 8 and 10. Interdigital glands resembling human eccrine glands were detected deep within the reticular dermis. Histochemical staining indicated neutral mucopolysaccharides and nonsulphated acid mucopolysaccharides in glandular secretions, and the glandular epithelium also showed immunoreactivity to cytokeratins 8 and 10. Both the histochemical and immunohistochemical staining patterns are analogous to human eccrine structures. This study shows with certainty that Asian elephants possess sweat glands as they are defined histologically.  相似文献   

A REVIEW OF PLASMA SUBSTITUTES     

R. Fritsch 《Veterinary anaesthesia and analgesia》1982,10(1):170-179

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Hairballs in feedlot-raised calves     

RM. HERD  LG. COOK 《Australian veterinary journal》1989,66(11):372-373

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Anterior amelia     

RM DeBowes DVM  MS  HW Leipold DMV  PhD 《Journal of Equine Veterinary Science》1984,4(3):133-135

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