Published in Scientific Papers. Series A. Agronomy, Vol. LXIX, Issue 1
Written by Hristiyana HRISTOVA, Nesho NESHEV
The Duo System technology in maize is extensively used in agricultural practice. It is characterized by the cultivation of cycloxydim-tolerant hybrids, while the herbicide ensures efficient control of monocotyledonous weed species, which may compromise grain yields and quality. Overall, the selectivity of the herbicide primarily depends on the application rate but the hybrids differ in their tolerance levels. A research for evaluating the effects of increasing rates of Stratos Ultra was conducted in the experimental field of the Agricultural University Plovdiv, Bulgaria. Three Duo System hybrids were grown - Zanetixx DUO, Hexxagone DUO, and Elaraxx DUO. Each hybrid was treated five increasing herbicidal rates ranging from 1.00 to 5.00 L ha-1. The obtained results were compared to Untreated (Earthed-up) control. After harvesting, yields and grain quality parameters such as moisture, 1000 grain weight, hectoliter seed mass, protein, oil and starch content were estimated. Due to the increased rates of 4.00 and 5.00 L ha-1 of Stratos Ultra and the reported herbicide phytotoxicity significant decrease in grain yields and its quality was recorded.
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{simplepopup popup="false" name="Citation37"}HRISTOVA H., NESHEV N. 2026, SURVEY ON INCREASING RATES OF THE HERBICIDE STRATOS ULTRA (100 G/L CYCLOXYDIM) ON YIELD AND GRAIN QUALITY OF DUO SYSTEM MAIZE HYBRIDS. Scientific Papers. Series A. Agronomy, Vol. LXIX, Issue 1, ISSN 2285-5785, 304-311. {/simplepopup}