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Fertiactyl® in mixture with glyphosate decreases herbicide absorption and translocation in coffee seedlings
Journal of Environmental Science and Health, Part B ( IF 1.4 ) Pub Date : 2020-10-12 , DOI: 10.1080/03601234.2020.1831860
Kamila Cabral Mielke 1 , Kassio Ferreira Mendes 1 , Jefferson Luiz Marciano do Nascimento 1 , Rodrigo Cabral Adriano 1 , Lino Roberto Ferreira 1 , Valdemar Luiz Tornisielo 2
Affiliation  

Abstract

The application of glyphosate to coffee crops can cause injuries to plants. Fertiactyl® foliar fertilizer reduces injuries when mixed with glyphosate; however, it is important to establish which mechanisms are responsible for this protective action. This study aimed to evaluate the absorption and translocation of glyphosate applied separately and in mixture with Fertiactyl® in coffee seedlings. Absorption and translocation were performed with 14C-glyphosate applied separately and in mixture with Fertiactyl® at 0, 6, 12, 24, 48, 96, and 144 hours after application (HAA). Most of the 14C-glyphosate applied to coffee seedlings was not absorbed. The 14C-glyphosate applied separately had a higher absorption by coffee seedlings (6.5%) than in a mixture with Fertiactyl® (2.7%) at 144 HAA. The maximum translocation of the 14C-glyphosate applied separately was 0.69% at 81.2 HAA and in mixture with Fertiactyl® was 0.41% at 41.2 HAA. The treated leaves retained a higher percentage of 14C-glyphosate when applied separately (5.6% at 144 HAA) than in a mixture with Fertiactyl® (2.2% at 144 HAA). Low translocation (<1%) for the rest of the plant shoots was observed both for the 14C-glyphosate applied separately and in combination with Fertiactyl®. Therefore, Fertiactyl® decreased the absorption and translocation of 14C-glyphosate in coffee seedlings.



中文翻译:


Fertiactyl® 与草甘膦的混合物可减少咖啡幼苗对除草剂的吸收和转移


 抽象的


将草甘膦施用于咖啡作物可能会对植物造成伤害。 Fertiactyl ®叶面肥与草甘膦混合可减少伤害;然而,重要的是确定哪些机制负责这种保护行动。本研究旨在评估单独施用以及与 Fertiactyl ®混合施用的草甘膦在咖啡幼苗中的吸收和转运情况。在施用后0、6、12、24、48、96和144小时(HAA),分别施用14 C-草甘膦以及与Fertiactyl ®混合时进行吸收和移位。施用于咖啡幼苗的14 C-草甘膦大部分未被吸收。单独施用的14 C-草甘膦在 144 HAA 下的咖啡幼苗吸收率 (6.5%) 高于与 Fertiactyl ®的混合物 (2.7%)。单独施用的14 C-草甘膦在 81.2 HAA 时的最大易位为 0.69%,与 Fertiactyl ®混合时在 41.2 HAA 时的最大易位为 0.41%。单独施用时,经处理的叶子保留了更高百分比的14 C-草甘膦(144 HAA 时为 5.6%),而与 Fertiactyl ®混合施用时(144 HAA 时为 2.2%)。低易位(<1 id=118> 14 C-草甘膦单独施用或与 Fertiactyl ®组合施用。因此,Fertiactyl ®降低了咖啡幼苗中14 C-草甘膦的吸收和易位。

更新日期:2020-10-12
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