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Odrůdová variabilita vitality osiva máku a její souvislost s velikostí kořenového systému
Jedličková, Žaneta
The thesis deals with seed vigour testing of 10 selected poppy genotypes. The aim was to determine the tolerance of poppy seed to selected suboptimal abiotic factors such as drought and temperature, and to clarify its relationship with the ability to form the root system or the final product - poppy seed in the yield-forming process. The laboratory part of the experiment was carried out at the Department of Crop Science, Breeding and Plant Medicine at Mendel University in Brno. Observations and measurements were carried out in a field experiment in the municipality of Chvalíkovice in 2022 under the direction of OSEVA PRO s.r.o. The results confirmed the expectation that the number of germinated individuals decreased with increasing drought intensity. Significant differences between genotypes were found when testing for vigour. Differences in root system size and seed yield were also found. An interesting finding of this work was the data showing a higher number of germinated individuals at 10 °C compared to testing at 20 °C. A statistically significant relationship was found when poppy seed vigour data were correlated with poppy root system size. The more vigorous the seed, the more able the plant is to form a robust root system in the early stages of growth. However, this relationship is no longer clearly reflected in the yield of poppy. There is no conclusive relationship between the vigour of poppy seed and its subsequent seed yield. A myriad of external factors enter into the poppy seed yield process, so it cannot be said that a highly vigorous seed will produce a large quantity of quality poppy seed.
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The Analysis of the impact of varieties and seed treatment on selected parameter seeds of poppy (Papaver somniferum L.)
Míča, Luděk ; Kuchtová, Perla (advisor) ; Miroslava, Miroslava (referee)
Czech Republic is one of the world's leading producers of the poppy seeds. Concerning the growing field area of poppy, the Czech Republic is lead producer of the poppy seeds at the international level (Vašák, 2010; Cihlář, 2012).
Poppy seed is very sensitive on many internal and external factors during cultivation, especially in the beginning of germination and emergence. At present, there are not registered preparations available for seed dressing for poppy seed in the Czech Republic (Prokinová, 2006). However, there has been done many experiments based on testing of natural substances (eg. humates and plant extracts), microorganisms and especially the application of soil fungi in seed treatment recently
The aim of this study is to evaluate the effect of selected regional varieties of poppy cultivation and seed treatment to yield parameters of poppy seed both individually and in combination,. For the thesis was essential to describe the suitability of varieties for growing in organic and integrated agriculture in relation to the efficiency of production. Evaluation of the seed quality of the varieties was carried out in the field as well as under laboratory conditions. Before sowing, seeds were treated by preparations Gliorex and TS Osivo, untreated variant has been used as a control.
During plant cultivation were monitored shape of the plants, the degree of infestation, weed control and other treatments based on natural substances. Neem-Azal was used as the pest regulator. The second variant was treated by foliar application of TS Květa.
Seeds harvested from variants of our trial were tested under laboratory conditions for comparison of differences between varieties. The tests also revealed the seed infestation and what percentage of the seed is viable. The last evaluation was carried out on the basis of the weight of thousands of seeds (HTS), which reflects the yield determined by the selected seed treatment.
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