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1 | Joint action of active groups of gibberellins (GA) and brassinolide (BL) on growth and development of plants Arabidopsis thaliana ecotype Landsberg erecta has been studied. It has been, that the presowing treatment of seeds the 10-9М BL reduced duration of phases of an ontogenesis of plants, accelerated growth vegetative and reproductive organs and increased seed production at plants of wild-type Ler and of mutant ga4-1. Exogenous BL in part compensated a lack endogenic GA1/4 at a mutant, enlarging the common length of shoots and restoring seed production of a mutant up to a level of wild-type. This effect might be connected with on account of augmentation of quantity of side shoots, quantities of pods, lengths of pods and quantities of seeds in pods | 917 | ||||
2 | Results of researches have shown that the presowing treatment of seeds with selenium ions (selenite and selenate ions) has a stimulating effect on elongation of the shoot structural elements of the plants Lactuca sativa L. as well as on the content of the chlorophylls sum. Specificity of the influence of different selenium ions consists in regulating the synthesis of biologically active substances and a dry biomass. Keywords: Lactuca sativa, selenium, morphogenesis, chlorophylls, carotenoids, ascorbic acid, anthocyans. | 941 | ||||
3 | The influence of different forms of selenium on development of wheat plants in soil culture was studied. It is shown, that formation of structural elements of shoot and productivity of plants Triticum aestivum L. depends on the degree of oxidation of selenium ions and the methods of processing. Specificity of action of different ions of selenium consists in regulation of accumulation of dry substance by the main shoot and shoots tillering, amount of tillering shoots, productivity and quality of grain. Selenate sodium increased wheat productivity, selenite of sodium - quality of grain (the content of starch and protein). Keywords: Triticum aestivum, selenite and selenate sodium, morphogenesis, growth and development of plants, starch, protein | 1017 |