402 research outputs found
ExcluĆi Ći exploataĆŁi. Munca obligatorie a evreilor din RomĂąnia Ći Ungaria Ăźn timpul celui de al Doilea RÄzboi Mondial
Seedling Resistance to Stagonospora nodorum Blotch in Wheat Genotypes
In two independent experiments set up in the greenhouse the seedling resistance to Stagonospora nodorum blotch was investigated in 92 varieties, breeding lines and genotypes with a known genetic background. The greatest area under the disease progress curve calculated from lesion type was 37.06, while in the case of the most resistant genotype this value was 0.38. Many of the lines and varieties bred in MartonvĂĄsĂĄr proved to have excellent resistance in terms of both percentage of infected leaf area and lesion type. Observations indicate that, depending on the aim of the experiment, the efficient selection of breeding lines is possible in the seedling stage either on the basis of the area under the disease progress curve calculated for lesion types, or on the basis of lesion types scored 7, 11 or 14 days after inoculation
Heating causes non-linear microwave absorption anomaly in single wall carbon nanotubes
Microwave impedance measurements indicate a non-linear absorption anomaly in
single wall carbon nanotubes at low temperatures (below K). We investigate
the nature of the anomaly using a time resolved microwave impedance measurement
technique. It proves that the anomaly has an extremely slow, a few hundred
second long dynamics. This strongly suggests that the anomaly is not caused by
an intrinsic electronic effect and that it is rather due to a slow heat
exchange between the sample and the environment
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