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Effect of seed tuber size on yield structure in potatoes
CHUCHEL, Jan
The thesis examined the effect of seed tuber size on the structure of the potato yield. In the one year trial ( 2011) four varieties were applied (Velox, Marabel, Adela, Laura) have been grown in the conventional system. The size of seed tubers were divided into three size fractions: A < 35 mm, B 35 to 60 mm and C > 60 mm. Number of plants per area and number of stems per plant were observed during the vegetation period. The number of tubers per stem and average weight per tuber were determined after harvest. Furthermore was also found total and market yield of tubers. The size of seed tubers most significantly influenced the number of stems per plant (of 93.9%) and the number of tubers per stem (of 80.5%). The resulting parameter values were highly influenced by the course of weather in 2011.
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Potential of wild, primitive and cultivated potato species in potato breeding programs
POSPÍCHALOVÁ, Jitka
The bacherol thesis is focused on actual situation and potential of wild, primitive and cultivated potato species (genus Solanum) usage in programmes of potato (Solanum tuberosum L.) breeding. The first part of the bacherol thesis describes history of potato domestication and gives basic information about potatoes - their biology, morphology and physiology. The second part is focused on the potato varietes and on problematic of potato breeding. The last part is focused on evaluation of present and future potential of wild, primitive and cultivated potato species in specific breeding programmes of cultivated potatoes (Solanum tuberosum L.).
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The influence of factors at produce starch of potato
ŠOBROVÁ, Martina
The thesis is focused on the factors influencing the production of starch potatoes. These factors include the influence of variety, seed, soil, stress, fertilization, climatic conditions and weather. The work also provides basic information about potatoes, the history of the potato and its importance, the use of potatoes, the biological characteristics, morphology and chemical composition of potatoes. There is also an evaluation of the economics for potato starch processing.
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Závěrečná zpráva o plnění projektu MŽP/340/1/31/GMO/06 o zabezpečení laboratorní detekce geneticky modifikovaných organismů používaných pro výrobu potravin a krmiv
Státní zdravotní ústav‚ Centrum hygieny potravinových řetězců v Brně‚ Laboratoř molekulárně biologických metod, Brno ; Řezníčková, Zdeňka ; Kýrová, Veronika ; Ostrý, Vladimír ; Ruprich, Jiří
Cílem projektu bylo operativní stanovení přítomnosti GMO v dodaných vzorcích, uchování referenčních vzorků pro laboratorní detekci a stanovení GMO, které mohou být využity pro výrobu potravin a krmiv, vypracování metodiky detekce vybraných GM brambor, přehled metod pro průkaz a stanovení GMO a GM produktů ve smluvních laboratořích MŽP ČR zahrnutých do sítě ENGL v ČR (SZÚ-CHPŘ, VŠCHT, VÚRV), zpracování přehledu referenčních vzorků uchovávaných na uvedených pracovištích a spolupráce s Joint Research Centre EC, plnění úkolů v rámci evropské sítě detekčních laboratoří GMO "ENGL".
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Evaluation of SDS-PAGE tuber protein profiles for their potential use in potato cultivar characterization
PEŠINA, Jiří
The use of various types of gel electrophoresis for characterization and identifying plant varieties is well estabilished. This diploma work deals with the possibility characterize potato cultivar (Solanum tuberosum L.) by the help of electrophoretic technique SDS {--} PAGE tuber protein profiles. Soluble potato tuber proteins can be classified according to their molecular weight (kDa) into three groups: First, the major tuber protein patatin (37 {--} 44 kDa); second, a group constituted of protease inhibitors (6 {--} 24 kDa); and third group containing all other proteins. First two group manifest genetic variability, which is necessary evalute for its potential using of potato cultivar characterization.
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The influence of density growth potatoes on decree tuber
ŠVAJNEROVÁ, Markéta
In the potato production type, 380 {--} 400 m above sea level, was studied density 40 000, 45 000, 50 000, 55 000 plants per 1 ha on the yield potato, average number of tubers on the plant, proportion and average weight of tubers. The maximum yield of tubers were recorded at density 45 000 plants per 1 ha (varieties Impala, Adéla, Futura). Density grow it was not influence at proportion market tubers. Highest density growth the meaning reduction average weight of tubers.
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Hydrolysis of potatoes
VLAČIHOVÁ, Andrea
This work compares acid, alkaline and enzymatic hydrolysis of potato starch with simultaneous application of various pressures (0MPa, 0,3MPa and 1MPa). Acid hydrolysis was made by sulphuric acid of intensity 3, 6, 9 and 12 %, alkaline hydrolysis was made by sodium hydroxide of intensity 3, 6, 9 and 12 % and four enzymatic preparations for starch hydrolysis were used for enzymatic hydrolysis. Hydrolysis effect was measured via GE and added by alcohol yield. There was positive influence of increased pressure 0,3MPa and 1Mpa on hydrolysis process visible in this experiment.
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Diseases and pest of potatoes - information databases
KLOFÁČOVÁ, Petra
Aim of thesis was create electronic database in form of internet pages with externalization in diseases and pests of potato. Besides summary informations (taxonomy, morphology, evolution, meaning, host plants, appearances, ekology, methods for regulation, photodocumentation, et al.) about individual pests and causal agent are mentioned abiotic diseases in thesis too. The part of database a list of chemical preparations which are permited in potatoes and symptomatic key to determination diseases and pests of potatoes.
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Evaluation of protein variability among plant organs of Solanum tuberosum L.
ŠMÍDOVÁ, Michaela
The aim of the contritbution was to study potato (Solanum tuberosum L.) tuber protein concentration during growing season in dependence on actual ontogenesis stage of the potato plant. The changes in tuber protein concentration were studied on two potato cultivars - Adora (very early maturing) and Bionta (late maturing). The trial was established under field conditions on the site České Budějovice (380 m). Continuous ore sampling was aimed at following parameters evaluation: average tuber weight, dry matter concentration, crude protein concentration and protein concentration. Early maturing cultivar Adora showed rapid increasing of biomass from the start of ontogenesis and at the same time rapid decreasing of nitrogen compounds and pure protein concentration. The late maturing cultivar Bionta showed much more slow formation of biomass however the decreasing of nitrogen compounds and pure protein concentration was also recorded. Significant effect of ontogenesis stage on crude as well as pure protein concentration was evaluated. Significant effect on crude and pure protein concentration had also cultivar.
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Common scab important problem at growing of potato
Diviš, J. ; Krištůfek, Václav
Potato varieties with high susceptibility (Agria) and low susceptibility (Kariera) to common scab were grown on both the sites with a low occurrence and with a strong occurrence of common scab. The degree of common scab was evaluated by using the scale of Wenzel and Demel (1967). The obtained results confirmed tne significant position of the variety as the indirect measure of common scab protection. It is possible to use both varieties Agria and Kariera for indication of common scab occurrence at field conditions.
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