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Cultivar variability of soybean yield components formation when the crop is produced under less convenient field conditions
VOKURKA, Ondřej
The aim of this diploma thesis was to evaluate the yield formation of soybean under less favourable conditions. For the thesis' purposes, a one-year field experiment was realized in 2019 at the height of 559 metres above sea level, using the early to very early ripening varieties of Acardia, Coraline, Marzena, and Sculptor, all relatively new in the Czech Republic. Before harvesting, samples of the plants were gathered and the following parameters were determined: height of the plants, height of placement of the first pod, number of primary branches, number of pods on the plant, number of seeds in a pod, and weight of one thousand seeds. Furthermore, the fat content and the content of nitrogenous substances in the seeds was determined laboratorily. The obtained data were statistically processed. The yields varied from 2.96 (Sculptor) to 5.12 (Acardia) t/ha. For the Acardia and Coraline varieties, the content of nitrogenous substances was in a negative correlation with the fat content. For the Sculptor variety, the content substances were not analyzed due to mouldiness of the harvested seeds. The individual varieties displayed differences in how the yields were formed. The yields attained in the experiment were above average in general. The Sculptor variety proved to be unstable in terms of ripening under the given conditions. The experiment showed that if a suitable variety is chosen it is possible to grow soybean under the given conditions.
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The yield formation and quality of winter wheat in low-input conditions
PAVLÁTOVÁ, Kristýna
The aim of this thesis is to evaluate basic yield formation and food quality of grain in selected winter wheat varieties, depending on the intensity of cultivation. There was 5 varieties chosen for the experiment of which 3 was linear (Patras, Turandot and Rumor) and 2 varieties was hybrid (Hyfi and Hybery). Each variety was repeated three times during the experiment. The vegetation was assessed in two variations - the checking one and the one fertilized by the nitrogen. This experiment was conducted in growing season 2017/2018 on the field of Faculty of Agriculture of University of South Bohemia. The withdrawal of the vegetal material for the purpose of the following sample analysis was done right before the harvesting. The yield formation and the health condition of the vegetation was assessed in the fieldwork. The determination of qualitative parameters was made with the help of the apparatus in the laboratory of the faculty. Then, the results was marked in tables and graphics. Finally, the statistical evaluation of the obtained data. An average yield of all assessed varieties of the winter wheat was 8,52 t.ha-1 at the checking variation. On the contrary, at the nitrogen fertilized one the average yield was 8,94 t.ha-1. The evaluated varieties in the growing season 2017/2018 had the baking quality A and B. Regarding the qualitative parameters, there was found lower values of volume quantity than those that are stated in the norm for the food wheat (at least 76,0 kg.hl-1). The highest values were found at the variety Turandot fertilized by nitrogen (77,8 kg.hl-1), which met the requirements of the ČSN 4611 00-2.
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The yield formation of oil flax
PAVLÁTOVÁ, Kristýna
The aim of this thesis was to asses the production of yield of chosen varieties of flax. Six varieties of oil-flax and one variety of fiber-flax was involved in this thesis. The observation took place in 2016 and was focused especially on the main yield elements, precisely on the number of plants per meter square, the number of capsules on the plant, the number of seeds in the capsule and the weight of one thousand seeds. As a complementary value was determined total and technical lenght of plants. The discovered values was compared reciprocally and interpreted graphically. Then, the appearance of injurious agents in the stand was monitored. It is obvious from the results, that the yield elements of small-plot trial reached values above the average. The variety "Libra" achieved the highest theoretical yield, with 3,04 t?ha-1. The average real yield of oil-flax achieved 2,24 t?ha-1 and the fiber-flax achieved the yield of 1,47 t?ha-1, which is typical for fiber-flax, regarding to the main production of fibre.
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Formation of seed yield and evaluation of health state in hemp (\kur{Cannabis sativa} L.) cultivars
KUKLINA, Aleksandra
Hemp is a very usefull plant which can be grown for fiber, seeds and biomass. Although it is a plant from the group of alternative crops, and it is require more research and practical experiments. The main object of this bachelor work was focused on the formation of the yield of seeds in few varieties of hemp and the evaluation of seed quality. For the evaluating of yield formation was founded a plots field trial with 4 hemp varieties: Bialobrzeskie, Finola, Fedora 17, Fibrol. Further research on the composition of hemp seeds was continued on the varieties: Finola, Tiger, Fedora 17, USO-31 and Futura 75, obtained from a regional hemp grower. Proper choice of variety and basic agro-technology are the initial factors for successful seed yield formation. Further, in the first place as well, the density and the health status of the growth. In observing the development of the photosynthetic apparatus, there was confirmed a certain difference during the vegetation of the early and late varieties and the subsequent phenological changes of the plants. Hemp is a highly competitive crop against weeds, and no disease or pests has been, except for damage caused by birds. Yield of variety Finola was in range 2,2 1,6 t/ha. While monitoring the dry matter content of the seed, the results showed some differences and varietal influences. For example the highest amount of nitrogenous substances was found in the variety Finola (23.58%), with the lowest percentage of nitrogenous substances in the variety Tiger (21.12%). But for the correct evaluation and conclusions are required further experiments, which may be the aim of my further study.
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The yield formation of naked and hulled oats
FIŠER, Martin
The aim of the thesis was to assess the formation and reduction in the yield of naked and hulled oat varieties. The research was conducted two years and it was mainly focused on the main elements of income as a number of plants, cuttings, and lat per m2, further was assessed the number of grains per panicle 1, weight of thousand grains and total grain yield. As an additional assessment of quality indicators have been established; volume weight and the proportion of grains of the front. The values of determined individual elements have been compared to each other and evaluated by statistical analysis. The results based on the naked oat varieties attain average yields of grain; diameter compared varieties of naked oats totalled 3.03 tons per hectare, diameter of hulled varieties amounted to 5.03 tons per hectare and other indicators also moved around the average values. It was confirmed that the newer varieties are breeding to a higher threshold of revenue, while old varieties exhibit better values of the quality parameters.
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Yield formation and quality of spring naked and hulled barley
MAREK, Jan
On the grounds of the South Bohemian University was founded in 2015 oneyear experiment. In this experiment we compared three classical and one naked variety of spring barley. Each variety were planted in four replications. For each repetition was assessed the number of emerged plants, number of tillers, number of ears, yield, thousand grain weight, the proportion of leading grain, density andcontent of nitrogenous substances. The average yield of the hulled varieties exceeded 6 t/ha, while in the nudevariety was 4,68 t/ha. The nude variety also showed the lowest HTZ, highest densityand the highest content of nitrogenous substances.
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Yield formation of winter wheat
ŠEVČÍKOVÁ, Tereza
This thesis deals with yield formation with the 12 varieties of winter wheat during growing season 2013/2014. The experiment was established in four repetitions on the plot of Faculty of Agriculture, University of South Bohemia in České Budějovice. Examined yield components were the amount of spikes per 1 m2, amount of grains per spike and weight of thousand grains. Furthermore evaluated were the amount of plants per 1 m2, amount of spikelets in spike, real and theoretical yield, spike length and density. The next step was the processing of the results where the average value of all the varieties in the amount of ears per 1 m2 was 783 units/m2. The second element of the yield varieties reached the average number of grains per spike 36.2 pieces. And the mean weight of´thousand grains was 44.42 grams.
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Yield formation of spring wheat
BAŽANTOVÁ, Eva
The theme of these Thesis - Yield formation of spring wheat - presents a comparison of selected varieties of spring wheat, which are grown in the Czech Republic. The field trials were set up in 2012 on the experimental area of the Faculty of Agriculture, University of South Bohemia in České Budějovice. In four replications was planted eight varieties of spring wheat - Corso, Brawura, Aranka, Tercie, Granny, Scirocco, Septima a Vánek. Results of spring varieties were compared with a control winter variety Baletka. During the vegetation was monitored weeds, diseases and pests and evaluated the number of plants. In the final section are evaluated yields main elements - number of spike per square meter, number of grains per spike, thousand grain weight. The yield, theoretical yield, spike lenght and density is presented there too. The average number of spikes in spring varieties reached of 520 pieces per square meter and control winter varietiy reached 491 pieces per sqare meter. Number of grains per spike was average 45 pieces and control winter variety was 37 pieces. The average thousand grain weight of spring varieties amounted to 31,7 grams and was comparable with the results of control winter variety.
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Yield formation of winter wheat depending on row width in ecological agriculture
PROCHÁZKOVÁ, Lucie
The Subject of diploma work: Yield formation of winter wheat depending on row width in ecological agriculture This work deals with the formation of winter wheat yield. Winter wheat was cultivated on the narrow and wide rows to field experiments. The attempt was focused mainly on creating yield components (number of plants per square meter, number of grains per spike, the weight of one thousand grains). There was also accomplished the verification during the vegetation and there was the comparison of the theoretic and real yield at the end.
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Yield formation of winter wheat in ecological agriculture
ŠEBESTOVÁ, Martina
The diploma thesis "Yield formation of winter wheat in ecological agriculture " is focused on classification of genotypes of bread wheat on the basis of the morphological characters and yield output of bread wheat in ecological farming system. The field trials were set up by using the method of random blocks in the years 2005 and 2006 on the experimental area of the Faculty of Agriculture, University of South Bohemia in České Budějovice. 10 Austrian genotypes of bread wheat were tested: Capo, Ludwig, Clever, Eurofit, Element, Eriwan, SE 408/04, SE 320/05, SE 304/05 a SE 322/04. The results are focused on the postharvest analysis the main yield components {--} number of spike per square meter, number of grains per spike, thousand grain weight (TGW). The yield and theoretical yield is presented there too. The number of grains per spike, the level of yield and TGW were relatively high. On the other hand the number of spikes per square meter doesn´t reach to expected value in ecological farming. The results were analysed by ANOVA of main effects in programme Statistica. The tested Austrian genotypes showed the possibility of using them in the conditions of ecological farming in the Czech Republic.
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