Enlist volunteer corn affects the crop development and seed quality of Enlist soybean

IF 1.2 4区农林科学 Q2 AGRICULTURE, MULTIDISCIPLINARY

Bragantia Pub Date : 2022-01-01 DOI:10.1590/1678-4499.20210207

A. Mazon, J. Cechin, C. Piasecki, Juliano Gazola, J. R. Henckes, G. Meneghello, D. Agostinetto

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引用次数: 0

Abstract

: Enlist TM technology is a new trait on soybean and corn conferring tolerance to auxinic-type (2,4-D choline) and graminicides (aryloxyphenoxypropionates – FOPs) herbicides. However, the occurrence of volunteer corn tolerant to 2,4-D and FOPs can become a significant weed on soybean cropping systems, affecting the crop yield and reducing seed quality. This research aimed to evaluate herbicides to Enlist TM volunteer corn control and their effects on plant development, crop yield, and physiological seed quality of Enlist TM soybean. Field experiment was performed in a complete randomized block experimental design with four replicates, using a density of 10 plants · m -2 of Enlist TM volunteer corn. Treatments consisted of herbicides applied at 3-4-leaves stage of volunteer corn with haloxyfop-P-methyl, clethodim, pinoxaden, cloransulam-methyl and imazethapyr regarding to a control with and without volunteer corn. The development and yield components of Enlist TM soybean were evaluated and physiological seed testing performed on soybean’s seeds. Clethodim controlled Enlist TM volunteer corn, whereas haloxyfop-P-methyl, pinoxaden, and cloransulam-methyl showed insufficient control levels (30-35%) at 30 days after spray. Imazethapyr exhibited 84% of control of Enlist TM volunteer corn and injured the Enlist TM soybean, affecting its seed viability. Enlist TM volunteer corn interferences negatively the soybean crop yield, yield components, and affects the plant development pattern.

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志愿玉米影响志愿大豆的作物发育和种子品质

摘要:Enlist TM技术是大豆和玉米耐生长素型(2,4- d胆碱)和杀谷物剂(芳氧苯氧丙酸酯- FOPs)除草剂的新性状。然而，志愿耐2,4- d和FOPs的玉米的发生可能成为大豆种植系统的重要杂草，影响作物产量，降低种子质量。本研究旨在评价除草剂对大豆苗期玉米的控制作用及其对大豆植株发育、产量和种子生理品质的影响。田间试验采用完全随机区组试验设计，共4个重复，密度为10株·m -2。处理包括在志愿者玉米的3-4叶期施用除草剂，与有和没有志愿者玉米的对照相比，使用haloxytopp - p- methyl, clethodim, pinoxaden, cloransulam-methyl和imazethapyr。对大豆的发育和产量组成进行了评价，并对大豆种子进行了生理种子试验。Clethodim对Enlist TM志愿者玉米有控制作用，而在喷洒后30天，haloxyfop-P-methyl、pinoxaden和cloransulam-methyl的控制水平不足(30-35%)。Imazethapyr对Enlist TM志愿者玉米有84%的控制作用，对Enlist TM大豆有伤害作用，影响其种子活力。玉米对大豆作物的产量、产量构成因素产生负面干扰，影响植株发育模式。

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来源期刊

Bragantia AGRICULTURE, MULTIDISCIPLINARY-

CiteScore

2.40

自引率

8.30%

发文量

审稿时长

4 weeks

期刊介绍： Bragantia é uma revista de ciências agronômicas editada pelo Instituto Agronômico da Agência Paulista de Tecnologia dos Agronegócios, da Secretaria de Agricultura e Abastecimento do Estado de São Paulo, com o objetivo de publicar trabalhos científicos originais que contribuam para o desenvolvimento das ciências agronômicas. A revista é publicada desde 1941, tornando-se semestral em 1984, quadrimestral em 2001 e trimestral em 2005. É filiada à Associação Brasileira de Editores Científicos (ABEC).