Management of maize stand height using growth regulators
| Autor: | Tomáš SPITZER, Petr MÍŠA, Jan BÍLOVSKÝ, Jan KAZDA |
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| Jazyk: | angličtina |
| Rok vydání: | 2015 |
| Předmět: | |
| Zdroj: | Plant Protection Science, Vol 51, Iss 4, Pp 223-230 (2015) |
| Druh dokumentu: | article |
| ISSN: | 1212-2580 1805-9341 |
| DOI: | 10.17221/105/2014-PPS |
| Popis: | Effect in reducing maize plant height using growth regulators ethephon, chlormequat chloride (CCC), CCC + ethephon, and mepiquat chloride + prohexadione-Ca was studied in field experiments during 2010 and 2011. It was found that maize plant height could be reduced by as much as 125 cm (49% of control) using a double application of ethephon (576 g a.i./ha) at growth stages BBCH 18-19 and BBCH 34-36. The other growth regulators displayed weak or no influence. An optimum level of shortening was achieved using ethephon (576 g a.i./ha) at BBCH 34-36 (reducing plant height by 40-90 cm), but it is necessary to count upon yield loss of 0.5-0.6 t/ha. |
| Databáze: | Directory of Open Access Journals |
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