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- Title
THE BEHAVIOR OF SOME WINTER WHEAT GENOTYPES UNDER PLANT GROWTH REGULATORS TREATMENT AND INCREASED NITROGEN APPLICATIONS.
- Authors
VARADI, Adina; HIRIŞCĂU, Diana; KADAR, Rozalia; DUDA, Marcel M.
- Abstract
Plant Grow Regulators (PGR) are used widely to reduce the risk of lodging in winter wheat (Triticum aestivum L.) grown at high nitrogen rates. A field experiment was conducted during 2015-2016 winter wheat growing season at Agricultural Research and Development Station Turda to evaluate the effect of PGR on plant height, lodging, internodes length, grain yield and grain protein content of seven winter wheat genotypes tested at different rates of applied nitrogen fertilizer, in combination with foliar treatment with trinexapac-ethyl- based Plant Growth Regulator sprayed over the foliage. Results showed that high rates of applied nitrogen fertilizer and high rainfall stimulated stem elongation and increase the risk of cereal lodging. The PGR application on wheat cause shorter plants due to the reduction of the internodes length and less lodging. The response depends on factors like: wheat variety, amount of nitrogen fertilizer applied and the weather conditions. PGR applications significantly reduced lodging but didn't necessarily completely eliminate it, some genotypes even after PGR treatment still lodged. On yield and grain protein content nitrogen fertilization had a bigger influence than the trinexapac-ethyl treatment so these technology elements are not exclusive to each other.
- Subjects
WINTER wheat; PLANT regulators; WHEAT; NITROGEN fertilizers; GENOTYPES; WHEAT farming
- Publication
Research Journal of Agricultural Science, 2019, Vol 51, Issue 3, p154
- ISSN
2066-1843
- Publication type
Article