This thesis deals with use of growth regulators to reduce lodging of spring barley (Hordeum vulgare L.). The field trial was conducted in corn production area on a clay-loamy glue fluvisol since 2012 to 2014. An effect of growth regulators was monitored on spring barley of the variety Bojos. Preparations Retacel extra R 68 (chlormequat chloride), Moddus (trinexapac-ethyl) and Cerone 480 SL (etephon) were chosen to crop regulation. The aim of the thesis was to carry intensive crop barley focused on correct application of growth regulators according to the cultivation methodologies. Growth regulators were used in various combinations with one another in three dose and dosage times. From this reason cob length, number of seeds per spike, grain yield and selected parameters of malting barley quality were monitored and evaluated. There was no negative effect of different combinations and does of growth regulators on production and quality of spring barley while the aim of crop shortening was achieved. In 2014 up to 20% of the effect of stalk length shortage was achieved. The greatest shortening was achieved on the stalks with higher dose of Cerone. In 2013 the yield increased of 1,95 t.ha-1 in variants with growth regulators.
| Identifer | oai:union.ndltd.org:nusl.cz/oai:invenio.nusl.cz:250736 |
| Date | January 2015 |
| Creators | Tvrdý, Hynek |
| Source Sets | Czech ETDs |
| Language | Czech |
| Detected Language | English |
| Type | info:eu-repo/semantics/masterThesis |
| Rights | info:eu-repo/semantics/restrictedAccess |
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