3) Al content in substrate was significant negative correlated with axial root length and growth coffient, root system volume and pod growth and developement in the three tolerance types of peanut, with the sequence of correlation coefficient was sensitive type > mediate > high tolerance type.
The result showed that there were significant negative correlation between N, P and Ca contents of plants and Al concentration under Al stress conditions. And N, P and Ca contents of peanut plants showed high tolerance type > mediate > sensitive type.
On the contrary, Al contents of plants had significantly positive relation with concentration of Al, while they were sensitive type > mediate > high tolerance type.
In these tolerance populations,8 inbred lines with high tolerance to Sclerotinia Sclerotiorum Lib are selected by the combination method of recurrent selection and resistant identification.
The result showed that the cold tolerant and drought tolerant varieties had higher frequency and strength, the cold tolerant varieties was up to 86.44%, high tolerant rate was 23.53%, the drought tolerant varieties was 48.77%, high tolerant rate was 31.65%, the salt tolerant varieties was only 6.46%, no varieties showed high tolerance and tolerance.
Results Antibiotics susceptibility test were showed that 58% of Streptococcus pneumoniae were sensitive to penicillin(MIC≤0.063mg/L)(PSSP), 36% were intermediaten(MIC≤0.125mg/L)(PISP), and only 6% were resistant (MIC≥2mg/L)(PRSP).
Results Ten (12.7%) of the 79 strains were penicillin intermediate resistance (MIC 0.125-1μg/ml) and 1(1.3%) strain was penicillin resistance (MIC 4μg/ml) by E test;
canadensis has a high tolerance for contamination by heavy metal elements including Zn, Cu and Pb, but has low accumulation coefficients for these elements.3)S.
The high tolerance of Faust I shoots are determined by one major tolerance factor and one dominant inhibitor gene, which hampers the manifestation of the dominant tolerance gene.
The relatively high tolerance of a portion of the cell population to high-light illumination can be related to light-induced transformation of carotenoids and to the functioning of other protective systems of the photosynthetic apparatus in diatoms.
The expressions widly used for calculating dielectric strengths of electro-negative gas mixtures are applicable only to the small smooth electrodes prepared in laboratory conditions. In this paper an analysis is given to show that electro-negative gas mixtures are not so sensitive to electrode defects. Therefore,it is possible that the gas mixtures may be used as a substitute of SF6 in the industrial application where electrode surface roughness is unavoidable.
Acoustic emission has been studied for a wide range of polymers including amorphous glasses, semi-crystalline polymers, copolymers, polymer blends and a crosslinked rubber during the course of uni-axial stretching at room temperature. For noncrystalline polymers acoustic emission occurred in rather small number of events accompanied by crazing and micro-crack formation. Strong acoustic activity appeared during yielding and necking of crystalline polymers. Rather small number or none of acoustic bursts occur...