Glyphosate in agronomic performance and seed quality of soybean with cp4-EPSPs and cry1Ac genes
Journal Title: Journal of Plant Protection Research - Year 2018, Vol 58, Issue 4
Abstract
The “second generation” of glyphosate-tolerant soybean (GT2 soybean) was developed through a different technique of insertion of the glyphosate-insensitive EPSPs gene, in comparison with “first generation” of glyphosate-tolerant soybean. However, there is not enough information available about glyphosate selectivity in GT2 soybean and the effects on the quality of seeds produced. The aim of this study was to evaluate tolerance to glyphosate and seed quality of soybean cultivar NS 6700 IPRO (GT2) with cp4-EPSPs and cry1Ac genes, after application at post-emergence (V4). The experiment was conducted in a randomized block design with four replicates and seven treatments, or rates of glyphosate (0; 720; 1,440; 2,160; 2,880; 3,600; 4,320 g of acid equivalent − a.e. ・ ha−1). Assessments were performed for crop injury, SPAD index and variables related to agronomic performance and seed quality. A complementary trial with the same cultivar and treatments in a greenhouse was conducted in a completely randomized design with four replications. Data analysis indicated no significant effect of glyphosate on V4 on agronomic performance and physiological quality of seeds, for two growing seasons. The soybean cultivar NS 6700 IPRO (GT2), with cp4-EPSPs and cry1Ac genes, was tolerant to glyphosate up to the maximum rate applied (4,320 g a.e. ・ ha−1) at post-emergence (V4). The quality of soybean seeds was not affected by glyphosate up to the maximum rate applied (4,320 g a.e. ・ ha−1) atpost-emergence (V4).
Authors and Affiliations
Andre Felipe Moreira Silva, Alfredo Junior Paiola Albrecht, Leandro Paiola Albrecht, Victor Aparecido Pellicci, Bruno Flaibam Giovanelli, Giovani Apolari Ghirardello, Henrique Rodrigues Milagres Viana, Ricardo Victoria Filho
Keywords
Related Articles
- EP ID EP546082
- DOI 10.24425/jppr.2018.124644
- Views 65
- Downloads 0
Overwintering form of Erysiphe necator, the causal agent of grapevine powdery mildew in southern Syria
The main aims of this study were to determine the overwintering form and the primary inoculum of Erysiphe necator, the causal agent of grapevine powdery mildew in southern Syria. Eleven vineyards located at five differen...
Identification and characterization of Pseudomonas syringae pv. syringae strains from various plants and geographical regions
Pseudomonas syringae pv. syringae (Pss) constitutes a diverse group of bacterial strains that cause canker of stone fruits, blight of cereals and red streak of sugarcane. The purpose of this study was to determine how di...
Studies on trinexapac-ethyl dose reduction by combined application with adjuvants in spring barley
Trinexapac-ethyl is a popular plant growth regulator used in various crops, mostly due to its unique anti-lodging properties. Recently it has been found that this substance is also active in stress protection, which may...
Antifungal activity of Trichoderma VOCs against Pyrenophora teres, the causal agent of barley net blotch
Many species of Trichoderma produce secondary metabolites such as volatile organic compounds (VOCs) that reduce plant diseases and promote their growth. In this work we evaluated the antagonistic effects of VOCs released...
Individual resistance of Fraxinus angustifolia and F. excelsior clones to Hymenoscyphus fraxineus
Ash dieback, caused by Hymenoscyphus fraxineus, is a serious disease of common and narrow-leaved ash in Europe. The resistance of individual trees seems to be important for the maintenance of ash in European forests. In...