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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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The response of selected potato varieties to plant density
URBAN, Josef
The aim of my diploma thesis was to evaluate four densities of growth by chosen varieties of potatoes. The thesis deals with the experiment on 4 different varieties of potatoes. I have chosen the standard technology of growing ware potatoes. The selected densities of growth were 35 000, 40 000, 45 000 and 50 000 young plants ha-1. Each variant was repeated four times. I have evaluated the yield of bulbs, the share and yield of ware bulbs, the average number of bulbs for one plant, the weight of bulbs for one plant, the average weight of a bulb and the average weight of ware bulbs. The research was done on a private farm like the field experiment. The farm is located in potato-growing area in Vysočina Region, 490 metres above the sea level. Potatoes are grown approximately over 7 hectares on the farm. The experiment started in 2010. The potato planter MARS 42 was used for the planting. The distance between drills was 0,75 metre. Parcels consisted of 4 drills, each drill equals one repetition, each parcel equals one density of growth. On purchase of samples was realized the kickoff of 10 plants from each repetition. What followed was division of bulbs according to their size in each sample. They were divided into bulbs smaller than 40 millimetres and bigger. After that the samples were weighed and bulbs were counted. The number of bulbs and the weight of bulbs are very important for subtotal. It was established the variety Mirage made the best results when the density was 45 000 plants ha-1. The variety Agria had two suitable densities of growth, namely 40 000 and 45 000 plants ha-1. There was no considerable difference between them. In contrast with previous, the varieties Victoria and Marabel made the best result when the density was 35 000 plants ha-1. I have realized the density 50 000 plants ha-1 is explicitly unsuitable for all varieties. This density of growth is loss-making especially because of lowering of all assessed indexes. Another disadvantage is higher costs (more bulbs are required) and then there is also bigger risk of diseases and pests.
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Growth ot tadpole groups - the influence of size and kinship.
SRB, Ondřej
The aim of this study was to determine the effect of density and kinship on the rate of metamorphosis of the selected species of frogs. The work was made in Rana temporaria, common frog. Tadpoles of this species have been bred at different densities kindred subjects. The regular weekly intervals were timed tadpoles until metamorphosis. It has been shown that tadpoles reared individually developed much faster and metamorphosed at larger sizes. Contrast, tadpoles raised in unrelated groups developed much more slowly than in the group composed of related individuals.
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Základní principy v modelování dopravních toků
Šimáně, Čestmír ; Fábry, Jan (advisor) ; Kořenář, Václav (referee)
Research workers started to investigate traffic flows already in thirtieth years of twentieth century. But it is true that in these times was minimal the number of vehicles on roads. However, at the end of fifties this number started to increase. So according to this it was necessary to find sophistry tools to their monitoring. More engineers interested in the theory of traffic flow and they started to describe interactions between vehicles through new theories and models. Nowadays, this work continues, because the number of vehicles on roads is still increasing. The aim of this thesis is to make reader understood the basic terms, quantities, approaches and models in theory of traffic flow.
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Návrh odvozování klíčových slov v redakčním systému
Klusák, Marek ; Gála, Libor (advisor) ; Kafka, Daniel (referee)
Tato práce se zabývá problematikou odvození klíčových slov kompletního dokumentu a návrhem aplikace pro její uplatnění v rámci redakčního systému. V první části popisuje význam klíčových slov v internetovém prostředí a poté různé způsoby analýzy společně s jejich klady a zápory. V další kapitole jsou představeny prostředky pro tvorbu obsahu a jejich krátké srovnání s vymezením oblasti, které se bude práce věnovat. V poslední části práce se nachází podrobný popis návrhu a principů aplikace společně s diagramy procesů a ukázkami vzorových funkcí a algoritmů.
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