International Journal of Agronomy

Research Article

Evaluation of Preemergence Herbicide Programs for Control of Protoporphyrinogen Oxidase-Resistant Amaranthus palmeri in Soybean

Table 1

Locations, soybean varieties, planting dates, row spacings, and seeding rates for 12 trials conducted in Arkansas, USA, in 2016 and 2017.
LocationVarietyTechnologyPlanting dateRow spacing (cm)Seeding rate (1,000 seed ha−1)
CrawfordsvilleAG 47 × 6Roundup readyMay 11, 201697346
AG 47 × 6Roundup ready 2 xtendMay 11, 201697346
HBK 4950 LLLibertyLinkMay 11, 201697346
43R15Y9EnlistJune 10, 201697346
P49T09 BRLibertyLinkMay 22, 201797346
GregoryAG 4633Roundup readyMay 5, 201619450
DG 4957 LLLibertyLinkMay 5, 201619450
43R15Y9EnlistMay 5, 201619450
MarionAG 4632Roundup readyMay 12, 201697370
AG 47 × 6Roundup ready 2 xtendMay 12, 201697370
P49T31 LLLibertyLinkMay 12, 201697370
HBK 4953 LLLibertyLinkMay 10, 201797370
Abbreviations: AG, Asgrow, Bayer CropScience, Research Triangle Park, NC 27709; DG, Delta Grow, Delta Grow Seed, England, AR 72046; HBK, Hornbeck, Hornbeck Seed Company, De Witt, AR 72042; P, Pioneer, DowDupont Midland, MI 48674; 43R15Y9, Enlist soybean variety designation, Corteva, Midland, MI 48674.