Clomazone selectivity in cotton seeds treated with dietholate and zinc acetate

Authors

  • Miriam Hiroko Inoue Universidade do Estado de Mato Grosso
  • Natan Ramos Cavalcante Universidade do Estado de Mato Grosso
  • Ronei Ben Universidade do Estado de Mato Grosso
  • Kassio Ferreira Mendes Universidade de São Paulo
  • Ana Cássia Silva Possamai Universidade do Estado de Mato Grosso
  • Rivanildo Dallacort Universidade do Estado de Mato Grosso

DOI:

https://doi.org/10.5433/1679-0359.2014v35n6p2905

Keywords:

Phytointoxication, Gossypium hirsutum, Productivity.

Abstract

The objective of this study objective was to evaluate the selectivity of pre-emergence applications the herbicide clomazone cotton seeds treated with dietholate and zinc acetate. The 4 x 2 factorial arrangement was adopted (4 seed treatment methods and 2 clomazone dosages), distributed in a randomized block design with 4 repetitions. In treatments where dietholate and zinc acetate were applied, rates of 0.4 kg ha-1 and 8 ml per kg of seeds were used respectively. The clomazone rates used refer to 0.8 and 1.0 kg ha- 1. The cotton cultivar used was the Fiber Max 966 LL. Independent of treatment, all seeds were treated with tiametoxam insecticide and fludioxonil + metalaxyl-M fungicide at rates of 2.24 and 0.08 + 0.03 g per kg of seed, respectively, to control pests early and limit losses caused by pathogens in germination and seedling emergence. Dietholate and zinc acetate treatment had greater initial effect on cotton plants at 21, 30 and 45 days after application. In phytointoxication symptoms were observed for treatment with dietholate and zinc acetate during the evaluation periods. Seeds treated with dietholate, dietholate and zinc acetate or zinc acetate alone provided a higher number of bolls and seed cotton production compared to the control.

Author Biographies

Miriam Hiroko Inoue, Universidade do Estado de Mato Grosso

Prof. Dr., Universidade do Estado de Mato Grosso, UNEMAT, Tangará da Serra, MT.

Natan Ramos Cavalcante, Universidade do Estado de Mato Grosso

Discente do Curso de Mestrado em Genética e Melhoramento de Plantas, UNEMAT, Tangará da Serra, MT.

Ronei Ben, Universidade do Estado de Mato Grosso

Discente do Curso de Mestrado em Agricultura, Universidade Estadual Paulista “Júlio Mesquita Filho”, UNESP, Botucatu, SP.

Kassio Ferreira Mendes, Universidade de São Paulo

Discente do Curso de Doutorado em Ciências, Química na Agricultura e no Ambiente, Centro de Energia Nuclear na Agricultura, CENA, Universidade de São Paulo, USP, Piracicaba, SP.

Ana Cássia Silva Possamai, Universidade do Estado de Mato Grosso

Discente do Curso de Doutorado em Agronomia, Universidade Estadual de Maringá, UEM, Maringá, PR.

Rivanildo Dallacort, Universidade do Estado de Mato Grosso

Prof. Dr., Universidade do Estado de Mato Grosso, UNEMAT, Tangará da Serra, MT.

Published

2014-12-09

How to Cite

Inoue, M. H., Cavalcante, N. R., Ben, R., Mendes, K. F., Possamai, A. C. S., & Dallacort, R. (2014). Clomazone selectivity in cotton seeds treated with dietholate and zinc acetate. Semina: Ciências Agrárias, 35(6), 2905–2918. https://doi.org/10.5433/1679-0359.2014v35n6p2905

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