eight genotypes of spring safflower (carthamus tinctorius l.) were evaluated for several physiological traits under stress and non-stress water regimes. data were analyzed using principal factor analysis. the factor analysis technique extracted six factors under non-stress conditions. six factors explained about 80% of the total variation, and only 40% of the variance was accounted for by the f...

Soil erosion and water loss are serious problems on the rocky desertification slopes in karst dynamic system of southwest China. The lack soil shortage restrict ecological restoration regional utility resources. Therefore, a new slab trench capable storing layers is introduced this paper to promote vegetation restoration. To explore water-storing -holding capacity type vegetated trench, five gr...

background: blood is permanently exposed to oxidation stress and therefore has a high antioxidants capacity. many different factors increasing the demand for the antioxidant capacity can be observed in the stored blood of donors. consequently, damage to erythrocytes by free radicals may occur. so it is useful to control the alternation of anti-oxidant enzymes in stored blood at different days o...

The epidemiology of sclerotinia rot of carrot was investigated on carrot ‘Cellobunch’ during 1999 and 2000 in Ontario. Apothecia were first detected in the crop in early August to mid-September, after the carrot canopy closed and after 7–11 days with soil matric potentials between –0.1 and –0.4 bars and soil temperatures between 14 and 23 °C. Ascospores were first detected in mid-July to mid-Au...

We have developed a spatially inexplicit model of canopy photosynthesis for balsam fir (Abies balsamea (L.) Mill.) that accounts for key processes of light-shoot interaction including irradiance interception by the shoot, spatial aggregation of shoots into branches and crowns, the differential propagation of diffuse and direct light within the canopy, and an ideal representation of penumbra. Al...

December 2002 35 S torage is the computer age’s unsung technical marvel. For years, users and analysts have focused attention on the microprocessors that gave rise to the personal computer and to the networks that became the Internet. But nothing from playing solitaire on your notebook to multimillion-dollar online stock trades would be possible without storage. Without storage, a computer woul...