Date of Award

2019

Publisher

North Dakota State University

Document Type

Thesis

Degree Awarded

Master of Science (MS)

Program

Plant Sciences

Department

Plant Sciences

College

Agriculture, Food Systems and Natural Resources

Faculty Advisor

Hatterman-Valenti, Harlene

Description

The effects of sublethal drift rates and carryover of glyphosate and dicamba into the next generation of seed potato cultivars Atlantic and Dakota Pearl are unknown. The objective of this research is to determine the impact of sublethal glyphosate and dicamba rates on mother and daughter chipping potato plants. Field studies were conducted in 2018 and 2019 in Oakes, ND. Herbicides were sprayed at the tuber initiation stage and consisted of dicamba (0, 20, and 99 g ae ha-1) and glyphosate (0, 40, and 197% g ae ha-1). During the year of application (2018), the combination of glyphosate at 197 g ha-1 and dicamba at 99 g ha-1 resulted in a 40% yield reduction compared to the non-treated in both cultivars. In 2019, the daughter tubers from mother tubers that were treated with glyphosate (23%) experienced a 16% reduction in marketable yield in both cultivars.

Rights

NDSU policy 190.6.2

Rights Link

https://www.ndsu.edu/fileadmin/policy/190.pdf

Handle Identifier

https://hdl.handle.net/10365/31550

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