Response of Peanut (<i>Arachis hypogaea</i>) and Selected Weeds to Diclosulam

Bailey, William A.; Wilcut, John W.; Jordan, David L.; Swann, C. W.; Langston, V. B.

doi:10.1017/s0890037x00042214

Cited by 31 publications

(43 citation statements)

References 10 publications

(10 reference statements)

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“…Paraquat ϩ bentazon EPOST, either alone or fb chlorimuron provided less than 80% control; however, all other treatments evaluated provided at least 89% control in 2003 (Table 4). In previous research, diclosulam and flumioxazin PRE, chlorimuron, imazapic, pyridate, and 2,4-DB POST controlled ivyleaf morningglory 70 to 100% (Bailey and Wilcut 2002;Bailey et al 1999aBailey et al , 1999bEdenfield et al 2001;Taylor-Lovell et al 2002). No differences were observed between peanut planting patterns for ivyleaf morningglory control (Table 4).…”

Section: Resultsmentioning

confidence: 68%

Weed Management in Single- vs. Twin-Row Peanut (Arachis hypogaea)

Brecke

Stephenson

2006

Weed technol.

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Experiments were conducted in Florida in 2000 through 2003 to evaluate weed management systems in single- and twin-row peanut utilizing either conventional or strip tillage. Diclosulam or flumioxazin preemergence (PRE) or 2,4-DB or imazapic mid-postemergence (MPOST) or late-postemergence (LPOST) was needed for greater than 95% common cocklebur control in conventional- and strip-tillage peanut. In both tillage systems, paraquat + bentazon early-postemergence (EPOST) followed by (fb) 2,4-DB or imazapic MPOST, 2,4-DB or chlorimuron LPOST, or both was required for more than 80% late-season control of Florida beggarweed and control in twin-row was 5 to 10 percentage points above that observed with single-row peanut. Paraquat + bentazon EPOST preceded by a diclosulam or flumioxazin PRE or fb MPOST or LPOST applications provided 80% or greater control of ivyleaf morningglory, and no differences were observed between peanut planting pattern. Paraquat + bentazon EPOST fb imazapic MPOST was the only treatment that provided 90% or greater late-season sicklepod control across all years and tillage methods, and, regardless of tillage, sicklepod control was 7 percentage points better in twin- than single-row peanut. Treatments that contained diclosulam or flumioxazin PRE and paraquat + bentazon EPOST fb a MPOST or LPOST herbicide application increased peanut yield compared to nontreated in conventional- and strip-tillage peanut. Averaged over all herbicide treatments, years, and tillage methods, peanut seeded in twin rows yielded 300 kg/ha more than in single rows.

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Section: Resultsmentioning

confidence: 68%

Weed Management in Single- vs. Twin-Row Peanut (Arachis hypogaea)

Brecke

Stephenson

2006

Weed technol.

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“…None ofthe cultivars evaluated were negatively impacted « 5% visual injury and no yield reduction) by either imazapic or diclosulam applied at twice the labeled rate in any of the 3 yr of the study (data not shown). Previous research has indicated similar results (no effect on peanut yield) with diclosulam applied to virginia-type cultivars (Wilcut et al, 1997;Bailey et al, 1999Bailey et al, , 2000. Others have evaluated imazapic on viginia-, spanish-, and runner-type cultivars Wilcut et al, 1996;Dotray et al, 2001).…”

Section: Nonementioning

confidence: 88%

Comparison Between Diclosulam- and Imazapic-Based Weed Control Systems in Peanut1

Brecke¹,

Wehtje²,

Paudel

2002

Peanut Science

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Field studies were conducted in Florida and Alabama in 1998and 1999to evaluateimazapic [70gailhapreemergence (PRE) or early postemergence ( EPOST)], diclosulam (18 or 26 g ailha PRE or 18 glha EPOST) or imazapic + diclosulam (35 + 13 glha PRE or 35 + 9 glha EPOST). These treatments were applied alone or supplementedwith eitheraparaquat + bentazon tank mixture or 2,4-DB. The intentwasto determine ifdiclosulam, which has a mode of action similar to imazapic and is less persistent and less costly, could be incorporated into systemswith other herbicides and thereby offer an alternative to imazapic. Maximumyield and economic return were consistently associated with only two treatments, imazapic at 70 glha EPOST and imazapic + diclosulam at 35 + 9 glha EPOST. However, none of the diclosulambased systems provided a more favorable economic return than imazapic applied alone due to poor sicklepod control with diclosulam. Sicklepod control with diclosulam was improved with the addition of either paraquat + bentazon or 2,4-DB,but control was less than that obtained with imazapic. Diclosulam-based systems could be identified that were as effective as imazapic alone in controlling Florida beggarweed (diclosulam 26 glha EPOST or imazapic + diclosulam PRE or EPOST), bristly starbur (diclosulam 18 glha PRE or imazapic + diclosulam PRE or EPOST) and yellow nutsedge (imazapic + diclosulam EPOST). Thus, diclosulambased systems may offer an economic advantage over imazapic in areas void of sicklepod. Neither diclosulam nor imazapic adversely affected any of five runner-type peanut cultivars (Georgia Green, Southern Runner, ViruGuard, Florida MDR 98, or Florida C-99R) when applied at twice labeled rates.

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“…Ipomoea hederacea is a self-compatible annual vine that is believed to have a mixed mating system (Ennos, 1981;Elmore, 1986) due to its ability to produce viable seeds from autogamous fertilizations and hand outcrosses. This species is frequently found in cultivated gardens and disturbed areas and is a serious pest species in agricultural crops such as soybean (Thullen and Keeley, 1983;Klingaman and Oliver, 1996), cotton (Klingaman and Oliver, 1994), and peanuts (Bailey et al, 1999) throughout the southeastern United States. Germination occurs between mid-May and August, and flowering in east-central Alabama (AL) begins in early August.…”

mentioning

confidence: 99%

Inbreeding depression and selfing rate of Ipomoea hederacea var. integriuscula (Convolvulaceae)

Hull-Sanders¹,

Eubanks²,

Carr³

2005

American J of Botany

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Inbreeding depression and selfing rate were investigated in the self-compatible vine Ipomoea hederacea to assess the variability of the breeding system. Inbreeding depression differed between populations and the magnitude varied at germination, growth (as measured by aboveground biomass), and reproductive potential. Plants from Macon County, Alabama, USA, had significant inbreeding depression (31%) at germination, but no significant inbreeding depression for aboveground biomass or number of reproductive structures (buds and flowers) at 45 d post germination in the greenhouse or in the field. Plants from Morgan County, Alabama, however, had significant inbreeding depression (>50%) for all three stages in the greenhouse. In allozyme comparisons, five of the 11 I. hederacea populations surveyed had high selfing rates (66.66-92.53%) and high levels of homozygosity (F(IS) = 0.500-0.861) in 2003, and three of four populations surveyed in 2004 had selfing rates that exceeded 50%. High selfing rates, high levels of homozygosity, and low levels of inbreeding depression suggest that inbreeding depression may not present a significant barrier to the transmission of selfing alleles in some populations of I. hederacea, but does not account for the maintenance of a mixed mating system in other populations.

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Response of Peanut (Arachis hypogaea) and Selected Weeds to Diclosulam

Cited by 31 publications

References 10 publications

Weed Management in Single- vs. Twin-Row Peanut (Arachis hypogaea)

Weed Management in Single- vs. Twin-Row Peanut (Arachis hypogaea)

Comparison Between Diclosulam- and Imazapic-Based Weed Control Systems in Peanut1

Inbreeding depression and selfing rate of Ipomoea hederacea var. integriuscula (Convolvulaceae)

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