STUDIES ON THE PROPERTIES OF SOIL‐BORNE VIRUSES OF THE TOBACCO‐RATTLE TYPE OCCURRING IN SCOTLANDAnnals of Applied Biology - Tập 47 Số 3 - Trang 542-556 - 1959
C. H. Cadman, B. D. Harrison
Soil‐borne viruses of the tobacco‐rattle type occur in sandy and peaty soils in
many parts of Scotland, and infect many species of crop and weed plants, often
only in the roots. They also occur in potato plants that have diseases of the
stem‐mottle type. The viruses can be distinguished from other soil‐borne viruses
occurring in Britain by the symptoms they cause in tobacco, Chenopodium
amarantico... hiện toàn bộ
The effect of certain antibiotics on reproduction of the black bean aphid, Aphis fabae Scop.Annals of Applied Biology - Tập 59 Số 1 - Trang 13-21 - 1967
S. Jayaraj, P. Ehrhardt, H. Schmutterer
SUMMARYThe antibiotic terramycin at 0.2% concentration was consistently
effective in greatly reducing the populations of Aphis fabae on Vicia faba when
sprayed on larvae on and off the plant. The insects were not killed, but their
fertility was decreased by over 97% in the first generation, leading to total
sterility in the second generation. At 0.01% concentration, terramycin was not
effective an... hiện toàn bộ
Abundant genetic diversity of the wild rice Zizania latifolia in central China revealed by microsatellitesAnnals of Applied Biology - Tập 161 Số 2 - Trang 192-201 - 2012
Yudong Chen, Hai-Jia Chu, H. Liu, Y.‐L. Liu
AbstractWild rice Zizania latifolia is a perennial emergent aquatic plant widely
distributed across China. Wild populations of Z. latifolia are important to
aquatic ecosystems and are valuable genetic resources for breeding. However,
they have been faced with significant habitat losses in recent decades. For 10
nuclear microsatellites, high levels of genetic diversity (HE = 0.572–0.636)
were found... hiện toàn bộ
STUDIES ON THE IMPORTANCE OF WILD BEET AS A SOURCE OF PATHOGENS FOR THE SUGAR‐BEET CROPAnnals of Applied Biology - Tập 48 Số 4 - Trang 771-779 - 1960
Adrian Gibbs
Beet yellows virus, beet mosaic virus, rust (Uromyces betae (Pers) Lév.), and
downy mildew (Peronospora schachtii Fuckel.) were found to be common in wild
beet (Beta vulgaris s.‐sp. maritima L.) growing on the foreshores of south Wales
and southern England. The virus diseases were more prevalent in southeast
England than in the west, rust more in the west than in the east, and downy
mildew is equa... hiện toàn bộ
THE CALCULATION OF THE DOSAGE‐MORTALITY CURVEAnnals of Applied Biology - Tập 22 Số 1 - Trang 134-167 - 1935
C. I. Bliss
Summary.The sigmoid dosage‐mortality curve, secured so commonly in toxicity
tests upon multicellular organisms, is interpreted as a cumulative normal
frequency distribution of the variation among the individuals of a population in
their susceptibility to a toxic agent, which susceptibility is inversely
proportional to the logarithm of the dose applied. In support of this
interpretation is the fact... hiện toàn bộ
Race non‐specific resistance of oats to primary infection by mildewAnnals of Applied Biology - Tập 86 Số 1 - Trang 29-36 - 1977
T.L.W. Carver, Ambrose Carr
SUMMARYA range of oat species, species hybrids and derived addition lines,
varied in their level of race non‐specific resistance to mildew. This resistance
prevented attempted primary penetration by a proportion of spores. It was
generally expressed more strongly in fifth than in first formed leaves and thus
appeared to be a component of adult plant resistance. Penetration was most
frequently arre... hiện toàn bộ
Effects of host resistance on the development of haustoria and colonies of oat mildewAnnals of Applied Biology - Tập 88 Số 1 - Trang 171-178 - 1978
T.L.W. Carver, Ambrose Carr
SUMMARYColony development of Erysiphe graminis f.sp. avenae race 2 was studied
on detached leaf segments of a range of Avena hosts with different levels of
resistance, none of which possesses known specific gene resistance to this race.
Resistance affected the length attained by mature primary haustoria, and also
colony size as assessed by numbers of haustoria and conidiophores produced per
colony... hiện toàn bộ