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Influence of different factors for qualitative parameters of ensilage feedstuffs
KUBÁT, Václav
In the operating conditions, for the period of three years, were estimated the qualitative factors affecting the qualitative parameters of grass silages. The fermentation characteristics and the total quality of silages were evaluated by the recommendations of AgroKonzulta Žamberk and EKO-LAB Žamberk companies. The feed samples (silages) were evaluated in two sets of databases. First set of samples assessed the impact of additive substances on the basis of parameters of fermentation characteristics. This first set of samples was divided into three groups; each of them had 14 samples. First group of the samples was untreated; no preservations were used on these samples. Into the second group of the samples were included the silages treated with bacterial preparations. The third group contained the silage samples treated with bacterial-enzyme preparations. It is possible to conclude that the silage{\crq}s additives positively affect the fermentation process and thus the final silage quality. High statistical significance (P < 0.01) was found for level of proteolysis. Better values were achieved in groups with the use of preservations. Group of grass silages using preservations achieved significantly better values (P < 0.05) in lactic acid content than the group with none using of the preservations. Grass silage samples treated with the bacterial-enzymatic preparations had about 14.4 % more representations in I. class quality than the group treated with bacterial preparation. The second set of samples was classified by the phenophases: before the heading, the beginning of heading and full heading. Each group contained 12 samples. The parameters of nutritional value were evaluated. The chemical compositions (NL, PDIN and SOH) were highly significantly affected (P < 0.01) by the phenophases. The best results have been reported in grass silage harvested in the phenophase before the heading. The chemical compositions CF and NEL were better (P < 0.01) in grass silages harvested in the phenophase before the heading and in the phenophase the beginning of heading against grass silage harvested in the phenophase full heading.
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Assessment of vegetation phenology using Sentinel-2 time series data
Danilchyk, Tatsiana ; Štych, Přemysl (advisor) ; Bohovic, Roman (referee)
This work aims to evaluate the detection of phenological phases of vegetation based on phenometric parameters according to archival Sentinel-2 data in the selected areas over the period 2018-2020. The first part of the work describes literature review of the relevant publications, which is followed by the description of the suggested methodology. Then, there are the results with the graphic material and description for each monitored site. In the final part of the work, advantages and disadvantages of the developed algorithm are discussed followed up by suggestions for future research and improvement. The developed algorithm consists of two parts. Masking out cloudy and cloud shadow pixels and generation on the vegetation indices time series is done in the GEE platform. The time series analysis and detection of SOS and EOS as well as statistical analysis are done in the R environment. The study areas of size 20 x 20 m represent different species of perennial vegetation across the Czech Republic. For the assessment of the phenophases detection are selected NDVI, RENDVI, NDRE, NDMI and MCARI. The Asymmetric Gaussian function and Double Logistic function are fitted to the time series of each vegetation season in each tested site, the phenology metrics are derived based on threshold or derivatives...
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Vliv průběhu počasí a délky fenofází na výnos vybraných polních plodin
Piroltová, Zdenka
The thesis is dealing with phenophases of winter wheat and spring barley. It assesses influence of the sum of active temperatures and the sum of effective temperature on the length of period between commencement of early mil ripeness and hard dough ripeness. Monitoring undertaken at the fields around Cholina village between years was used as foundation for this thesis. Phenological monitoring as well as weather data fron weather station of Czech Hydrometeorological Institute in Luká was used for analysis. In this thesis, data about winter wheat yield and spring barley yield from station of Central Institute for Supervising and Testing in Agriculture in Věrovany werw also used. Analysis was carried out in during twenty yares of monitoring. Evaluation of data shows that earlier commencement of mentioned phenophase does not occur, but begin vary considerably.
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Posouzení trendů aktivních a efektivních teplot v období 1961-2010
Kourek, Zdeněk
The work analyzes the meteorological element air temperature at three climatological stations. The aim was to assess changes in the values of temperature sum, and the sum of active temperatures (sum of temperatures over specified threshold) and the sum of effective temperatures (sum of temperatures over specified threshold - defined threshold) for the period 1961 - 2010. At the same time large vegetation season (number of days when the average daily temperature is consistently above 5 ° C), the main (number of days when the average daily temperature is consistently above 10 ° C the growing season) and the growing years (number of days when the average daily temperature is consistently above 15 ° C) was analyzed. These results were then compared with the proxy data from the field of plant and animal phenology. Pedunculate oak or English oak (Quercus robur) was chosen as a representative for the higher plants and the Great tit (Parus major) was chosen for the represenatives of the bird species in the Lednice area. On the basis of calculating the sum of active and effective sum, we can say that their values increase with time, as far as the number of days in the growing seasons. The results are regionally different.
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Vliv mikroklimatických podmínek na dynamiku růstových fází a výskyt vybraných škodlivých činitelů u hybridů kukuřice
Bureš, Stanislav
The thesis deals with microclimate monitoring in maize canopy on a family farm BUREŠ in Švábenice (Vyškov region). Two meteostations were placed in two localities in Švábenice area. The measurement was done in a field trial with maize hybrids and on an ordinary production field. Data from a standard meteorological station situated on the farm area were used for additional calculations. Air temperature, humidity and soil temperature were measured in a vertical vegetation profile. The onset of phenophases and occurrence of pests were monitored simultaneously. The results show that using microclimate monitoring in maize stand is suitable for a pest occurence prediction, however, it is not fully applicable for the maize phenophases onset estimation.
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Fenologická pozorování ve smrkovém porostu na ekosystémové stanici Rájec, Drahanská vrchovina
Mizerová, Lucie
This diploma thesis evaluates the commencement of phenophases considering the changing microclimate conditions in the habitat of Norway spruce (Picea abies /L./ Karst) in a young and a mature spruce monoculture at the ecosystem station Rájec. The phenology of spruce undergrowth has also been under observation. Regarding the methods, above-ground phenology and observation by means of phenocams have been used. The results have been compared not only among themselves but also in the context of long-term averages. Thanks to the fact that phenophases of forest woody plants and herbaceous plants are dependent on climate conditions, the results of long-term phenological observations are a conclusive indicator of climate changes. The results of this diploma thesis can be a contribution to the phenology database.
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Ampelografický rozbor vybraných moštových odrůd z rodiny Veltlínů
Muchová, Eva
The aim of this diploma thesis was to study the available literature and to describe selected wine grape varieties from the Veltlín family using basic ampelographic methods. For these purposes, the varieties Veltliner rotweiss, Frühroter Veltliner and Grüner Veltliner were selected. During the year, the onset of individual phenophases was monitored, the leaves, grapes and berries of the varieties were collected and described. The work was focused mainly on the leaf. Descrtiptor List Genus Vitis L. was used for the description, only some descriptors were selected. The measurement results were evaluated using tables, graphs and basic statistical methods. Cluster analysis was used for statistical evaluation.
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Hodnocení vybraných pomologických a popisných znaků hybridů a odrůd meruněk
Zourková, Štěpánka
The diploma thesis is focused on the observation and subsequent evaluation of selected phenological and pomological traits in the gene pool of apricots (Prunus armeniaca L.). A total of 35 genotypes were evaluated during 2018 on the land of the Faculty of Horticulture in Lednice, Mendel University in Brno. In addition to individual phenophases, the signs of leaves, fruits, stone, or nuclei were also evaluated. The theoretical part of this thesis deals with the overall description of apricots. It provides an overview of their history and origin, botanical description and also information about cultivation methods, content substances or also about the situation of cultivation and breeding of apricots in the Czech Republic and in the world. It also contains information about the most common diseases and pests that affect apricot trees. In the practical part there are evaluated individual characters of apricot varieties according to the Classifier for Armeniaca P. MILL. The obtained evaluation results were further elaborated into tables and evaluated graphically and statistically. Formula clause:I hereby declare that, this thesis entitled Evaluation of selected pomological and descriptive features of hybrids and apricot varieties was written and completed by me. I also declare that all the sources and information used to complete the thesis are included in the list of references. I disagree that the thesis could be made public in accordance with Article 47b of Act No. 111/1998 Coll., Higher Education Institutions and on Amendments and Supplements to Some Other Acts (the Higher Education Act), and in accordance with the current. I recommend postponing the publication of the bachelor / master thesis for a maximum of 3 years. Directive on publishing of the final thesis. I declare that the printed version of the thesis and electronic version of the thesis published in the application of the Final Thesis in the University Information System is identical. I am aware that my thesis is written in accordance to Act. 121/2000 Coll., on Copyright and therefore Mendel University in Brno has the right to conclude licence agreements on the utilization of the thesis as a school work in accordance with Article 60(1) of the Copyright Act. Before concluding a licence agreement on utilization of the work by another person, I will request a written statement from the university that the licence agreement is not in contradiction to legitimate interests of the university, and I will also pay a prospective fee to cover the cost incurred in creating the work to the full amount of such costs.
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Kompoziční potenciál vybrané skupiny domácích rostlin v průběhu roku
Dlasková, Jana
In 2018, the composition potential of 28 domestic trees and shrubs was evaluated in the Slatiňany Castle Park. The beginning and duration of phenophases characterizing the development of leaves, flowers and fruits were determined. Each of them was then evaluated for their compositional potential. To the attractive phenophases of trees are attributed to the attractive phenophases of herbaceous, at the same time. In the course of the year, changeability are applied to the woody plants. The changeability is significant for garden architecture. The data of obtained from phenological observation are useful in designing the composition.
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Hodnocení pěstitelských a plodových znaků u vybraných hrušní v sadech Libina podniku ÚSOVSKO a.s.
Horáčková, Jitka
This diploma thesis is focused to observed growth characteristics, phenological phases, fertility, yields, pomological traits, diseases, pests and needs for chemical protection of selected pears varieties. Practical part was focused to two plantations on different rootstocks in orchards company Úsovsko a.s. in north Moravia. The particular captures describe extent area of intensive pears orchards in integrated and organic growing systems in Czech Republic. There are mention Individual stages of phenological phases, description of orchards management during fruit develop and presence pathogens. All results are processed in the tables and graphs. From conclusions were drawn up a possible step and recommendation. Pears orchards are profitable fruit in Czech Republic and in the world. This diploma also confirms, that observed orchards belongs to economically perspective and costs-effective.
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