Response of Imidazolinone-Resistant Sunflower to Various Drift Rates of Glyphosate, Glufosinate and Indaziflam

IF 0.9 4区农林科学 Q3 AGRONOMY

Romanian Agricultural Research Pub Date : 2022-01-01 DOI:10.59665/rar3939

A. T. Serim

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引用次数: 1

Abstract

Imidazolinone (IMI) herbicides are used in sunflower due to the need for sunflower broomrape control, and IMI - resistant sunflower has become common in Turkey. Cereal fields and orchards are often in close vicinity to sunflower fields, and herbicide drift from these areas can adversely affect sunflower. Fields experiments were conducted at Edirne and Ankara, Turkey, in 2018 and 2019 to quantify the sunflower (IMI - resistant) response to various simulated drift rates of glyphosate, glufosinate, and indaziflam. Herbicides were applied to sunflower at 12.5, 6.25, 3.125, and 1% of recommended rates. Crop injury was visually evaluated at 7, 14, and 28 d after treatment (DAT), and plant responses to herbicides were assessed at harvest. Sunflower was injured by all rates of glyphosate applied, with 15 to 100% (in Edirne) and 9 to 84% (Ankara) injury at 28 DAT. Glufosinate - related injury was 5 to 58% in Edirne and 7 to 43% in Ankara at 7 DAT, and decreased with time. In contrast, indaziflam caused no significant crop injury or yield losses. The recommended rates of 6.25% and 12.5 of glyphosate killed all sunflower plants in 2019, while in 2018 the yield loss was 100% only at recommended rate of 12.5% glyphosate. Lower rates of glyphosate reduced yield by 2 to 87% in 2018 and 18 to 62% in 2019. On the other hand, the two highest rates of glufosinate resulted in a yield reduction of 9 and 6% in 2018, respectively, but not in 2019. Injury at early stages after exposure is a good indicator of the impact of glyphosate drift on sunflower yield.

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抗咪唑啉酮向日葵对不同飘移率草甘膦、草铵膦和茚地夫兰的反应

咪唑啉酮(IMI)除草剂在向日葵上的应用是为了防治向日葵扫帚病的需要，抗IMI的向日葵在土耳其已经很普遍。谷物田和果园经常靠近向日葵田，这些地区的除草剂漂移会对向日葵产生不利影响。2018年和2019年，在土耳其的埃迪尔内和安卡拉进行了田间试验，以量化向日葵(抗IMI)对草甘膦、草铵膦和茚地夫兰不同模拟漂变率的反应。除草剂用量分别为推荐用量的12.5%、6.25%、3.125和1%。在处理后7、14和28 d目测作物伤害，并在收获时评估植物对除草剂的反应。向日葵受到不同剂量草甘膦的伤害，28 DAT时15% ~ 100% (Edirne)和9% ~ 84% (Ankara)的伤害。在7 DAT时，Edirne的草甘膦相关损伤为5 ~ 58%，Ankara为7 ~ 43%，随时间的推移而降低。相比之下，茚地夫兰没有造成显著的作物伤害或产量损失。在2019年，6.25%和12.5的草甘膦推荐用量杀死了所有向日葵植株，而在2018年，只有在12.5%的草甘膦推荐用量下，产量损失才达到100%。较低的草甘膦用量使2018年的产量减少了2%至87%，2019年减少了18%至62%。另一方面，草甘膦的两个最高施用量在2018年分别导致产量下降9%和6%，但在2019年没有。暴露后早期的伤害是草甘膦漂移对向日葵产量影响的一个很好的指标。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

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来源期刊

Romanian Agricultural Research 农林科学-农艺学

CiteScore

0.90

自引率

28.60%

发文量

审稿时长

>12 weeks

期刊介绍： The Journal ROMANIAN AGRICULTURAL RESEARCH is an “open access” one, which publishes original articles, short communications, presenting new scientific results – theoretical, experimental and technical – on plant breeding and genetics, physiology, biotechnology, mineral nutrition and plant protection, in field crops. Reviews on up-to date subjects and recent research, preferably from Eastern Europe, may also be published.