Results 231 to 240 of about 12,501 (277)

Designation of Physiological Races of Plant Pathogens

Nature, 1970
THE physiological races of most plant pathogens have been designated on an historical basis, being numbered in order of their isolation and identification. This has little intrinsic merit, because the order in which they are isolated depends largely on their relative frequencies within the population, and these frequencies vary with changes in the host
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Physiology, Power Output, and Racing Strategy of a Race Across America Finisher

Medicine & Science in Sports & Exercise, 2011
The Race Across America, a 4800-km nonstop cycle race, is one of the most demanding endurance sports events. We display the racing strategy, power output, HR, hormonal levels, and inflammatory markers of an athlete before and during the race, which he completed in 10 d 23 h.The athlete showed physiological characteristics of a well-trained (nonelite ...
Schumacher, Yorck Olaf, Ahlgrim, Christoph, Prettin, Stephan Eckart, Pottgießer, Torben   +3 more
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Physiologic races of Phytophthora fragariae

Annals of Applied Biology, 1962
SUMMARYPathogenicity tests with forty‐nine isolates of Phytophthora fragariae, cause of red core disease of strawberry, using the strawberry varieties Huxley, Perle de Prague, Climax, Talisman, Aberdeen and Cambridge Vigour, revealed the existence of twelve physiological races of the fungus on the basis of a pathogenic or non‐pathogenic reaction ...
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PHYSIOLOGIC RACES OF OAT SMUTS

American Journal of Botany, 1924
Physiologic specialization is of very general occurrence among the parasitic fungi. In I9I8 the writer (4) summarized the information then available, but since that time a large number of additional investigations have been carried out, all of which greatly extend our knowledge along the line of the specialization of parasites to particular hosts.
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The great transatlantic race: physiologic and otoneurologic considerations

The Journal of Laryngology & Otology
AbstractBackgroundIn the era of the competition for the first transatlantic flight at the beginning of the nineteenth century, numerous accidents occurred. Whereas engine failure, bad weather and navigational problems are usually held responsible, the human factor has hardly been addressed.MethodsIn view of current insights, an inventory was made of ...
Kees Graamans, Eric Groen
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Physiological Responses to Two Wheelchair-Racing Exercise Protocols

Neurorehabilitation and Neural Repair, 2001
Objective: This study investigated the blood lactate accumulation during two wheelchair-racing protocols. During exercise, energy is required, which causes me tabolism to increase and blood lactate to accumulate. Proper training can reduce the amount of blood lactate accumulation and increase tolerance to blood lactate accu mulation during aerobic ...
R A, Cooper, F D, Baldini, M L, Boninger, R, Cooper   +3 more
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Physiological determinants of cross-country ski racing performance

Medicine and Science in Sports and Exercise, 2001
Previous laboratory testing has identified the importance of upper-body aerobic and anaerobic power to cross-country skiing performance. The purpose of this investigation was to extend laboratory research into a field setting to identify predictors of performance through ski-specific testing.Thirteen male collegiate skiers performed three field-testing
N V, Mahood, R W, Kenefick, R, Kertzer, T J, Quinn   +3 more
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PHYSIOLOGIC RACES OF BUNT OF WHEAT

American Journal of Botany, 1928
The discovery of physiologic races in covered smut of barley (2, 4) and in the loose and covered smuts of oats (6, 8) has greatly stimulated the study of host specialization in the other cereal smuts. From this standpoint, these parasites have previously been a neglected group, although physiologic specialization has long been known to be of wide ...
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PHYSIOLOGICAL RACES OF VENTURIA INAEQUALIS

Canadian Journal of Plant Science, 1957
Cultures of Venturia inaequalis were isolated from infected apple leaves and fruits received from various parts of Canada. The isolates differed in their ability to produce spores and to a certain extent in their growth. Variations were observed among monoconidial isolates obtained from a tissue isolate. Monoconidial cultures from an isolate varied in
J. B. Julien, L. P. S. Spangelo
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Physiologic races of Bremia lactucae in Israel

Transactions of the British Mycological Society, 1973
Four races of the downy mildew fungus of lettuce were found among 45 isolates of this pathogen. Two races (IL. 1 and IL. 4) seem to be identical to the races found in Holland and Britain. The occurrence of the other two races (IL. 2 and IL. 3) has not been reported so far in either of those countries. Of the four local races, IL.
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