Response of sweetpotato to pendimethalin application rate and timing

Field trials were conducted near Pontotoc, Mississippi; Chase, Louisiana; and Clinton, North Carolina, in 2017 and 2018 to determine the effect of pendimethalin rate and timing application on sweetpotato crop tolerance, yield, and storage root quality. Treatments consisted of five pendimethalin rate...

Full description

Saved in:
Bibliographic Details
Published in:Weed technology 2020-04, Vol.34 (2), p.301-304
Main Authors: Meyers, Stephen L, Chaudhari, Sushila, Jennings, Katherine M, Miller, Donnie K, Shankle, Mark W
Format: Article
Language:English
Subjects:
Agricultural production
Cell division
Crop injury
crop tolerance
Crops
Cultivars
Herbicides
Ipomoea batatas
Pendimethalin
Soil sciences
storage root
Weeds
Citations: Items that this one cites
Items that cite this one
Online Access:Get full text
Tags: Add Tag
No Tags, Be the first to tag this record!
Description
Summary:Field trials were conducted near Pontotoc, Mississippi; Chase, Louisiana; and Clinton, North Carolina, in 2017 and 2018 to determine the effect of pendimethalin rate and timing application on sweetpotato crop tolerance, yield, and storage root quality. Treatments consisted of five pendimethalin rates (266, 532, 1,065, 1,597, and 2,130 g ai ha–1) by two application timings (0 to 1 or 10 to 14 d after transplanting). Additionally, a nontreated check was included for comparison. Crop injury (stunting) was minimal (≤4%) through 6 wk after transplanting (WAP) and no injury was observed from 8 to 14 WAP, regardless of application timing or rate. The nontreated check yielded 6.6, 17.6, 5.5, and 32.1 × 103 kg ha–1 of canner, no. 1, jumbo, and total grades, respectively. Neither pendimethalin application timing nor rate influenced jumbo, no. 1, marketable, or total sweetpotato yield. Overall, these results indicate that pendimethalin will be a valuable addition to the toolkit of sweetpotato growers. Nomenclature: Pendimethalin; sweetpotato, Ipomoea batatas (L.) Lam. ‘Covington’, ‘Beauregard’
ISSN:0890-037X
1550-2740
DOI:10.1017/wet.2019.103