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National Repository of Grey Literature 2 records found  Search took 0.00 seconds. 
Effect of seed treatment on the germination of different provenances of Dodonaea angustifolia; a recommendation for degraded land restoration through direct seeding
 Petrovičová, Lucia
In Jara Jinesa nursery site in Ethiopia near Awassa city an experiment on germination rates of Dodonaea angustifolia was realized in 2015. To examine this rate, three different provenaces were evaluated for four different seed treatment methods and compared with control sample of untreated seeds. Hot water treatment at both time intervals prove significantly positive effect on seed germination. After this treatment seeds germination rate reached from 70 to 100 %. The positive effect of seeds soaking in cold water has not been recorded, in some cases even reduced germination over any untreated seed. Within 3 to 6 days of sowing, especially in warm water treated seeds, the number of germinated seeds increases steeply. The impact of provenance is evident especially in the various time span optimization, since each provenance is adapted to specific environmental conditions. Treating seeds with warm water before sowing increased the uniformity of seedlings, thereby increased the quality of seed production without significant technological equipment and financial costs
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Vliv provenience Dodonaea angustifolia na klíčení a růst této dřeviny vhodné pro protierozní opatření v okolí jezera Awassa
 Horák, Pavel
The bachelor thesis is focused on issues of Dodonaea angustifolia and its using for erosion control around Lake Awassa in Ethiopia. There is a theoretical part, where materials about this specimen are collected, about location and previous erosion control projects of MENDELU. In next part data about experimentally germinated individuals from different provenances with using various ways of stratification have been introduced. Based on this data most suitable provenance and way of stratification for direct sowing has been chosen. Statistically significant differences of the observed parameters occurred only in five cases. Seed treatment most often resulted in increased biomass in seedlings from treated seed. For use during anti-erosion measures, it seems that Umbulo Kajima is the best proveniency.
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