Sugar beet plants, effect

Oxalate oxidase. In some instances, as in dry wine, there is not sufficient glucose to effect deoxygenation. However there appears to be sufficient oxalic acid in many wines to act as the substrate for combination with oxygen by oxalate oxidase, derived from the discarded leafy tops of the sugar beet plant (29). The application may still not work well if it relies on catalase to decompose the H2O2 formed by the oxidase, as catalase is strongly inhibited by ethanol at the pH of wine. 

Effects of brassinosteroids on the activity of acid invertases in leaves. The first question to be answered was why does SSHB increase the total biomass under mild stress conditions It is known that rate of cell growth correlates with specific activity of acid invertase (4) and the role of acid invertase in the leaves of sugar-beet plants has been described (5). Table III shows total mass (from Table II) in relation to the activity of acid invertases. 

Effects of brassinosteroids on the activity of sucrose synthase in tap-roots. Finally, we had to consider the effect of homobrassinolide application on sugar content and sugar yield. It is inferred from Table II that both characteristics were increased only in the case of high drought stress which may be explained by increased activity of sucrose synthase as a consequence of SSHB application. Sucrose synthase is a key enzyme in the root storage of sugar-beet plants and this enzyme is able to synthesize sucrose (6). 

Finally, it is important to know whether laboratory demonstrated effects can be repeated in field trials. Table VI shows that field experiments with SSHB confirm many of the results we have obtained in greenhouse studies. Consequently brassinosteroids may become of interest as bioregulators that reduce drought stress in sugar-beet plants. 

Terry, N. and Ulrich, A. (1973) Effects of phosphorus deficiency on the photosynthesis and respiration of leaves in sugar beet. Plant Physiology 51, 43-47. 

M. Greger and S. Lindberg, Effects of Cd and EDTA on young sugar beets (Beta vulgaris). 1. Cd uptake and sugar accumulation. Physiol. Plant 66 69 (1986). 

After use, herbicides decompose slowly, and so affect cultivated plants for many years. In 1990, investigations in many regions of the USSR detected herbicides phytotoxic effects, especially among the si/m-triazine class, on different cultivars in many varied situations [13]. These sym-triazine herbicides, such as protrazin, simazin, atrazine, metazin, and prometrin, were used in different oblasts of the Ukraine, Kirgizia, Kazakhstan, Russia and Moldavia in previous years, especially on corn. Residual herbicide aftereffects led to the suppression and death of crops such as winter wheat, oats, barley, rye, potatoes, beets and sugar beets, linen, onions, watermelons and other melons, and sunflowers. 

Evidence of the Effects of foliar a on - cereals - sugar beets - maize - potato - snap bean alkaloidal plant growth stimulation pplication of lupine extracts... 

Effect of Thallium on Plants and Animals. On January 29, 1863, R. C. Bottger announced that he had detected spectroscopic traces of thallium in wine, chicory, tobacco, sugar beet, and beech wood, and had concluded that it must be widely diffused in the vegetable kingdom (47, 73). Because of the toxicity of thallium compounds, they are sometimes added in small concentrations to the soil of rodent-infested fields. Too high a concentration of thallium inhibits germination, growth rate, and chlorophyll formation in the crops, especially in rainy weather (78). 

Some years ago we began our experiments with radish plants in small plastic vessels. The pots were 45 mm high and 90 mm long. The substrate was quartz sand supplemented with a general nutrient solution. In each vessel 5 plants were cultivated. After the first true leaves had appeared an aqueous homobrassinolide solution was applied by spraying the leaves. Four weeks later, the plants were harvested, dried, measured and weighed. After certain experiments showed a small effect from homobrassinolide applications on root-, epicotyl- and total biomass, in the case of low water saturation, we carried out similar trials with sugar-beet plantlets (Table I). 

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