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National Repository of Grey Literature 2 records found  Search took 0.00 seconds. 
Stanovení stresové odezvy smrku ztepilého na suché a zamokřené prostředí
 Pavlíčková, Jana
The diploma thesis deals with the effects of abiotic stress on seedlings of Norway spruce (Picea abies (L.) Karsten), the impact of water deficit and abundance. In the theore-tical part is described the importance of water in plant, stress and its impact on plants and the cultivation of plants in vitro. Experimental part consists of experiments in vitro. Waterlogging conditions were simulated the medium without agar, drought conditions were created by increasing concentration of sucrose and polyethylene glycol. In the course of experiment were measured plant responses to stress, concentration of ethylene, ethane and CO2 in the culture vessels. At the end of the experiment was measured concentration of O2, quantum yield of photosynthesis, plant growth parameters, content of plant pigments in needles and anatomical changes in the stem and root of Norway spruce.
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Abiotické stresy v podmínkách in vitro u podnoží révy vinné
 Dvořáková, Vladimíra
The bachelor thesis deals with the effects of abiotic stress on grapevine rootstocks - the impact of water deficit and increased content of lime in the soil . The first part described the history of rootstocks and their tolerance to different stress factors . The following section describes selected abiotic stresses and their effects on plants and a chapter on the cultivation of plants in vitro. Experimental part consists of experiments in vitro with less tolerants rootstock to drought ' Kober 125 AA' and ' less tolerant rootstock to the higher content of lime'Börner '. Sufficient plant in vitro cultures were obtained only with rootstock Kober 125 AA, which was used for the experiment simulating stress. In the course of the experiment were measured plant responses to stress - concentration of ethylene, ethane , CO2, in the culture vessel during the observation of plants, at the end of the experiment was determined by fluorescence of chlorophyll , plants axis length , weight and plant chlorophyll and carotenoids.
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