The effect of the ontogeny on the rate of photosynthesis and transpiration in selected genotypes poppy seeds (Papaver somniferum L.)

The objective of this thesis is an influence of ontogenesis on the speed of photosynthesis and transpiration among chosen genotypes of opium poppy (Papaver somniferum L.). Photosynthesis is an important process from the point of view of the biomass production and the production of harvest. This is one of the most important processes on the Earth, which contributes to existence of all heterotrophs. Transpiration is a process, which has place in a plant, provides movement of water with mineral elements from the roots, through all parts of a plant and waters evaporation from aerial parts. The first chapter is devoted to general characterization of opium poppy, its origin, environment claims, and general characterization of photosynthesis and transpiration. The second chapter includes results of measurements and their explanation. Within this Bachelor Thesis three sorts of opium poppy, with different content of alkaloids, were observed: Buddha, HU; Tatranský, SK; Akvarel (CM 112), CZ. Small-plot experiments were based on a research station Červený Újezd in a year 2015. The measurement of speed of photosynthesis and transpiration was provided with gasometrical method by the device LCpro+. It has been established, that during the ontogenesis has reached to acceleration of photosynthesis. The speed of transpiration doesnt depend on a process of plants development, but depends on a water regime and the weather