Zobrazeno 1 - 10
of 74
pro vyhledávání: '"O. V. S. Heath"'
Autor:
O. V. S. Heath
Publikováno v:
Nature. 159(4045)
THE mechanism of the movement of stomatal guard cells in response to the stimulus of light, although under investigation for nearly a century, is still in doubt. The classical view1 that such movements are due to changes of turgor has received suppor
Autor:
O. V. S. Heath, H. Meidner
Publikováno v:
Proceedings of the Royal Society of London. Series B. Biological Sciences. 213:161-170
Stomata opening from darkness in constant light and in air of the normal carbon dioxide content unsaturated with water vapour come to different steady-state apertures at different light intensities. This shows that one or more negative feedback loops
Autor:
O. V. S. Heath
Publikováno v:
Proceedings of the Royal Society of London. Series B. Biological Sciences. 220:399-414
Stomatal opening towards the end of the night under natural conditions, which is followed, if darkness is artificially prolonged, by reclosure and in a few cases by a second (much reduced) opening and closure about 24 h later, is thought to represent
Autor:
J. E. Clark, O. V. S. Heath
Publikováno v:
Journal of Experimental Botany. 13:227-249
Extracts have been prepared from induced and non-induced onion plants. These extracts have been fractionated and the ether-soluble, acidic components investigated using the wheat coleoptile straight-growth assay, colorimetric deter mination of 3-indo
Autor:
O. V. S. Heath, J. Russell
Publikováno v:
Journal of Experimental Botany. 2:111-116
The main trend of porometer design has been to improve ease and rapidity of reading: thus the original porometer of Darwin and Pertz (1911), the Knight porometer (1915), and the 'resistance porometer' of Gregory and Pearse (1934), if calibrated in ab
Autor:
O. V. S. Heath
Publikováno v:
Annals of Botany. 10:301-304
Autor:
J. E. Clark, O. V. S. Heath
Publikováno v:
Journal of Experimental Botany. 11:167-187
Publikováno v:
Annals of Botany. 34:259-266
Leaf area was found to be an almost linear function of absolute leaf water content (that is fresh weight- dry weight) for several dicotyledonous genotypes. A closely similar relationship held for a given genotype in the same rooting medium despite in
Autor:
O. V. S. Heath
Publikováno v:
Annals of Applied Biology. 30:208-220
This paper completes the survey of the effects of five factors on flowering behaviour, bulbing, and ripening of onions grown from sets (Heath, 1943) and deals with the factors day length and temperature in the second season. The results from both pap
Autor:
O. V. S. Heath
Publikováno v:
Journal of Experimental Botany. 1:29-62