Agronomic traits of white oat treated with the growth regulator trinexapac-ethyl
| Autor: | Carlos Henrique dos Santos Fernandes, Klever Márcio Antunes Arruda, Débora Perdigão Tejo, Claudemir Zucareli |
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| Jazyk: | English<br />Portuguese |
| Rok vydání: | 2023 |
| Předmět: | |
| Zdroj: | Revista Ceres, Vol 70, Iss 2, Pp 91-100 (2023) |
| Druh dokumentu: | article |
| ISSN: | 2177-3491 0034-737x |
| DOI: | 10.1590/0034-737x202370020011 |
| Popis: | ABSTRACT The growth and yield performance of white oat cultivars may vary in response to doses of trinexapac-ethyl (TE) growth regulator. The objective of the work was to evaluate the lodging and productive performance of white oat cultivars under different doses of trinexapac-ethyl growth regulator. The experiments were carried out in a randomized complete block design with four replications, in a 4 x 2 factorial scheme, with four doses of trinexapac-ethyl (0, 50, 100 and 150 g ha-1) applied in the phenological stage between the 1st visible stalk node and the 2nd perceptible node in two white oat cultivars (URS Altiva and URS Corona). The following were evaluated: plant height, panicle length, panicles per m2, spikelets per panicle, grains per spikelet, number of grains per panicle, thousand grain weight, plant lodging and grain yield. The application of trinexapac-ethyl at doses 100 and 150 g ha-1 reduces plant height and panicle components: length, number of spikelets and grains per panicle of the two cultivars. TE doses above 100 g ha-1 provide a significant reduction in lodging with an increase in the number of panicles per m2 and in grain yield for the two white oat cultivars. |
| Databáze: | Directory of Open Access Journals |
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