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A mathematical representation of the relations between strains of Endothia parasitica Murr. (And.) differing in virulence

, : A mathematical representation of the relations between strains of Endothia parasitica Murr. (And.) differing in virulence. Informatore Fitopatologico 32(4): 37-40

The fungus, which causes chestnut bark canker, appeared in Italy in 1938 and has become widespread since. Increase in the population of the hypovirulent str. is associated with a decrease in that of the virulent str., cyclic processes being absent. Observations in the Padua area confirmed results obtained with the mathematical method described.


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Andreasen, F.M., 2013: Hands off and save teeth!. Journal of Contemporary Dental Practice 13(4): I-Ii

Khan Alam; Thomas Trautmann; Thomas Blaschke, 2011: Aerosol Optical Properties and radiative forcing over mega-city Karachi. Aerosol optical properties have been analyzed through the ground-based Aerosol Robotic Network (AERONET) over the mega city Karachi during August 26-July 27. The aerosol optical depth (AOD) is strongly dependent on wavelength; for shorter waveleng...

Bogdan Blakitnyi, R.M., 1981: Material incentives for farm workers. Ways of paying wages and premiums in USSR livestock farms are described. It is recommended that earnings should be linked as closely as possible to performance. Examples of wage calculations from farming practice are given.

Yang Weiping; Tazawa Jun Ichi, 1999: The bipolar distribution of Carboniferous and Permian biotas in East Asia, with special reference to the West Yunnan region, SW China and the South Kitakami region, NE Japan. Pages 159-160 1999

Krawczyński, M.R.; Pecold, K., 1993: Genetic basis of Leber's hereditary optic neuroretinopathy. Basic information about mitochondrial inheritance have been presented. The nature of inheritance of Leber's hereditary optic neuroretinopathy (LHON) has been described. The recent reports about heterogeneity of mutations, heteroplasm and nucl...

Hoban, TM.; Levine, AH.; Shane, RB.; Sulzman, FM., 1985: Circadian rhythms of drinking and body temperature of the owl monkey (Aotus trivirgatus). The rhythms of drinking and body temperature of 4 male owl monkeys (Aotus trivirgatus) were examined under conditions of LD 12:12 (L = 100 lx, D = 0.1 lx), DD (0.1 lx) and LL (100 lx). For all 4 monkeys, the circadian pattern expressed in LD 12:12...

Moreira, F.-; Russo, D., 2007: Modelling the impact of agricultural abandonment and wildfires on vertebrate diversity in Mediterranean Europe. Agricultural land abandonment, widespread in the Mediterranean, is leading to a recovery of scrubland and forests which are replacing open habitats and increasing wildfire events. Using published data, we modelled the global and regional impact of...

Roser, F.; Nakamura, M.; Martini-Thomas, R.; Samii, M.; Tatagiba, M., 2005: The role of surgery in meningiomas involving the optic nerve sheath. Clinical presentation, radiological appearance and treatment options of patients with optic nerve sheath meningiomas (ONSM) vary. To provide a baseline for treatment of this tumour entity a series of 24 patients with ONSM is presented. Clinical ch...

Nikolaev, B.P., 1957: Results of a study of strains of tertian malaria Regional Pathology Trudy Scient Conf Acad Med Sci Uzbek Min of Hlth Tashkent, 1954. Unknown

Nikiforov V.N.; Aksel'rod A.Yu; Nikiforov V.V.; Tsipis A.E.; Kaganskii M.A.; Shnitser S.V., 1981: Hyperbaric oxygenation in patients with severe forms of botulism. The use of hyperbaric oxygenation to treat severe botulism was studied in 30 patients. The treatment required, on average, 4.52 .+-. 0.56 sessions at an O2 pressure of 178.9 .+-. 23 kPa [kilopascal] with a 53.8 .+-. 1.9 min duration. As a result,...