Abstract
This study aimed to evaluate the effects of glyphosate sub doses in genipap (Genipa americana L.) young plants. One year after seedlings planting, three glyphosate sub doses were tested, being: T1 - 86.4, T2 - 172.8 and T3 - 345.6 g i.a. ha-1 and T4 - Check (without application). At 7, 14, 21, 28 and 120 days after herbicide application (DAA) scores were provided for visual phytotoxicity, and in the first and in the last evaluation, measurements of plant height and plant diameter were conducted. After 120 DAA it was observed that G. americana specie was sensitive to glyphosate herbicide application, affecting significantly height growth, but not plant diameter. Glyphosate doses superior than 86.4 g a.e. ha-1 caused only damages, however, with 345.6 g a.e. ha-1 occurred plant death.
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