Response of stevia (Stevia rebaudiana) to reduced risk synthetic and nonsynthetic herbicides applied post-transplant

IF 1.3 3区农林科学 Q3 AGRONOMY

Weed Technology Pub Date : 2024-05-03 DOI:10.1017/wet.2024.20

Stephen J. Ippolito, Katherine M. Jennings, David W. Monks, Sushila Chaudhari, David Jordan, Levi D. Moore, Colton D. Blankenship

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Abstract

Greenhouse trials were conducted to determine the response of stevia to reduce risk synthetic and nonsynthetic herbicides applied over-the-top post-transplant. In addition, field trials were conducted with stevia grown in a polyethylene mulch production system to determine crop response and weed control in planting holes to reduced risk synthetic and nonsynthetic herbicides applied post-transplant directed. Treatments included caprylic acid plus capric acid, clove oil plus cinnamon oil, d-limonene, acetic acid (200 grain), citric acid, pelargonic acid, eugenol, ammonium nonanoate, and ammoniated soap of fatty acids. Stevia yield (dry above ground biomass) in the greenhouse was reduced by all herbicide treatments. Citric acid and clove oil + cinnamon oil were the least injurious, reducing yield by 16 to 20%, respectively. In field studies, d-limonene, pelargonic acid, ammonium nonanoate, and ammoniated soap of fatty acids controlled Palmer amaranth > 90% 1 wk after treatment (WAT). In field studies caprylic acid plus capric acid, pelargonic acid, and ammonium nonanoate caused > 30% injury to stevia plant at 2 WAT, and D-limonene, citric acid, acetic acid, and ammoniated soap of fatty acids caused 18 to 25% injury 2 WAT. Clove oil plus cinnamon oil and eugenol caused < 10% injury. Despite being injurious, herbicides applied in the field did not reduce yield compared to the nontreated check. Based upon yield data, these herbicides have potential for use in stevia; however, these products could delay harvest if applied to established stevia. In particular, clove oil plus cinnamon oil has potential for use for early season weed management for organic production systems. The application of clove oil + cinnamon oil over-the-top resulted in <10% injury 28 DAT in the greenhouse and 3% injury 6 WAT POST-directed in the field. In addition, this treatment provided 95% control of Palmer amaranth 4 WAT.

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甜叶菊（Stevia rebaudiana）对移植后施用的风险较低的合成和非合成除草剂的反应

进行了温室试验，以确定甜叶菊对移栽后顶部施用的风险较低的合成和非合成除草剂的反应。此外，还对在聚乙烯地膜覆盖生产系统中种植的甜叶菊进行了田间试验，以确定作物对种植后直接施用的风险较低的合成和非合成除草剂的反应以及种植穴中的杂草控制情况。处理方法包括辛酸加癸酸、丁香油加肉桂油、d-柠檬烯、乙酸（200 谷物）、柠檬酸、壬酸钾、丁香酚、壬酸铵和脂肪酸氨化皂。所有除草剂处理都降低了温室中甜叶菊的产量（地上干生物量）。柠檬酸和丁香油+肉桂油的伤害最小，分别减少了 16% 到 20% 的产量。在田间研究中，d-柠檬烯、pelargonic acid、壬酸铵和脂肪酸氨化皂在处理后 1 周（WAT）对帕尔默苋的控制率为 90%。在田间研究中，辛酸加癸酸、壬酸钾和壬酸铵在处理后 2 WAT 会对甜叶菊植物造成 30% 的伤害，D-柠檬烯、柠檬酸、乙酸和脂肪酸氨化皂在处理后 2 WAT 会造成 18% 到 25% 的伤害。丁香油加肉桂油和丁香酚造成的伤害为 10%。尽管除草剂会造成伤害，但在田间施用除草剂与未施用除草剂的对照组相比并没有减产。根据产量数据，这些除草剂具有用于甜叶菊的潜力；不过，如果将这些产品用于成熟的甜叶菊，可能会延迟收获。特别是，丁香油加肉桂油有可能用于有机生产系统的早期杂草管理。在温室中，丁香油+肉桂油的顶部施用会导致 10%的伤害（28 DAT），在田间，3%的伤害（6 WAT POST-directed）。此外，这种处理方法在 4 WAT 期对帕尔默苋的控制率为 95%。

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来源期刊

Weed Technology 农林科学-农艺学

CiteScore

2.90

自引率

21.40%

发文量

审稿时长

12-24 weeks

期刊介绍： Weed Technology publishes original research and scholarship in the form of peer-reviewed articles focused on understanding how weeds are managed. The journal focuses on: - Applied aspects concerning the management of weeds in agricultural systems - Herbicides used to manage undesired vegetation, weed biology and control - Weed/crop management systems - Reports of new weed problems -New technologies for weed management and special articles emphasizing technology transfer to improve weed control -Articles dealing with plant growth regulators and management of undesired plant growth may also be accepted, provided there is clear relevance to weed science technology, e.g., turfgrass or woody plant management along rights-of-way, vegetation management in forest, aquatic, or other non-crop situations. -Surveys, education, and extension topics related to weeds will also be considered