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Fertilizantes foliares, regulador de crescimento e glyphosate no crescimento vegetativo da soja tolerante ao glyphosate.

Authors :
Gayoso da Cruz, Gabriela
Carolina Baccin, Luisa
Paiola Albrecht, Leandro
Paiola Albrecht, Alfredo Júnior
Henrique Krenchinski, Fábio
Source :
Colloquium Agrariae. nov/dez2019, Vol. 15 Issue 6, p55-62. 8p.
Publication Year :
2019

Abstract

The objective of this work is to evaluate the performance of soybean submitted to glyphosate doses in association with foliar fertilizers and plant growth regulator, aiming the reversal of phytotoxic effect in RR2 soybean. The experiment was conducted between November 2015 and January 2016, in a greenhouse located at the Federal University of Paraná - Setor Palotina. Monsoy 6210 IPRO® was used. The plants were submitted to glyphosate application at 0, 720, 1440, 2160 and 2880 g a. e ha-1 and glyphosate in association with the products: plant growth regulator (kinetin 0.09 g L-1, gibberellic acid). 0.05 g L-1 and 4-indol-3-butyl acid 0.05 g L-1) at the dose 250 ml ha-1, manganese (Mn as an aminoacid chelate, 62.5 g L-1) at a dose of 1L, and the aminoacid compound (protein hydrolysate, phosphoric acid, potassium hydroxide and water, 1L ha- 1). The application was performed at stage V4. Chlorophyll index shoot and root dry matter, and phytointoxication symptoms in the crop were evaluated. Data were subjected to analysis of variance, Tukey test (p=0.05) and regression analysis for the dose factor. No differences were observed between fertilizer and plant regulator treatments and herbicide. Symptoms of crop phytointoxication and chlorophyll levels were proportional to herbicide dose increase, but there was a recovery of culture after 35 DAA. For root and shoot dry matter, no difference was observed between the phytointoxication reversal management. Field work is necessary to verify the effects of products on plant physiology aiming at a possible increase of productivity. [ABSTRACT FROM AUTHOR]

Details

Language :
Portuguese
ISSN :
18098215
Volume :
15
Issue :
6
Database :
Academic Search Index
Journal :
Colloquium Agrariae
Publication Type :
Academic Journal
Accession number :
141090124
Full Text :
https://doi.org/10.5747/ca.2019.v15.n6.a336