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National Repository of Grey Literature 2 records found  Search took 0.00 seconds. 
Vliv stresových faktorů na růst intaktních rostlin podnoží révy vinné in vitro
 Dvořáková, Vladimíra
This thesis deals with the effects of water scarcity and excess lime in the soil to grow rooted grapevine rootstocks. The theoretical part provides summary information on the structure and main functions of the root system with increased attention on the production of phytohormones. The following chapter discusses the physiology of stress in plants, focusing on stress signals and detailed description. Literary part of the closing chapter on the effects of stress on photosynthesis and respiration and the impact of excess lime in the soil to grow grapevine rootstocks. Experimental part follows the results of the bachelor thesis, when being monitored by simulation of stress in vitro only unrooted rootstocks Kober 125 AA when the measured responses of plants to plant growth (length and weight) and their physiological response (quantum yield of photosynthesis, the production of ethylene, ethane, CO2 content and photosynthetically active pigments). These results are in the thesis completed by the determination of the abscisic acid in the above - ground parts of plants. In this thesis, the experiment was performed with the stage of the plant - unrooted nodal segments rootstock Börner shoots and rooted rootstock Börner and Kober 125 AA.
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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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