Effects of 2,4-DB on Yield and Pod Development in Peanuts

Ketchersid, Mary; Boswell, T. E.; Merkle, M. G.

doi:10.3146/i0095-3679-5-1-9

Cited by 16 publications

(23 citation statements)

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“…Knauft et al (12) noted similar results from paraquat application and attributed grade differences to method of maturity sampling from nontreated border peanut. Other herbicides have been shown to effect peanut yield and pod development (11). Previous research has shown that registration of AC 263,222 would provide growers with an effective broadleaf and perennial nutsedge herbicide (17).…”

Section: Resultsmentioning

confidence: 99%

Response of Eight Peanut (Arachis hypogaea L.) Cultivars to the Herbicide AC 263,222

Richburg¹,

Wilcut²,

Culbreath³

et al. 1995

Peanut Science

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Field experiments conducted in 1992 and 1993 in Georgia evaluated the response of the peanut cultivars Florunner, Georgia Runner, Goldkist GK 7, NC 7, NC-VII, Southern Runner, Sunrunner, and AgraTech VC-I to AC263,222 applied early-postemergence (EPOST) at 71 g ha'. Visual injury, which was less than 13%, was independent of cultivar, and injury was not evident on any cultivar midseason. AC 263,222 slightly reduced canopy width consistently on all cultivars. The only significant effect on percentage fancy pods, medium, No.1, sound splits, damaged, and other kernels was the main effect of cultivar. There was a significant cultivar, AC 263,222, and cultivar-by-AC 263,222 effect on extra large kernels (ELK) and jumbo kernel percentages. Southern Runner and NC-Vll had Significantlylower percentage jumbo and ELK, respectively when treated with AC 263,222. In addition, Florunner and Sunrunner also had numerically less percentage jumbo kernels. Reductions in percentages of ELK and jumbo were probably the result of AC 263,222-induced maturity delays. However, these reductions were not reflected in peanut yields. The occurence oflate and early leaf spot, tomato spotted wilt virus (TSWV),and southern stem rot was independent of both cultivar and AC 263,222.

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Section: Resultsmentioning

confidence: 99%

Response of Eight Peanut (Arachis hypogaea L.) Cultivars to the Herbicide AC 263,222

Richburg¹,

Wilcut²,

Culbreath³

et al. 1995

Peanut Science

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“…2,4-DB is not readily absorbed nor translocated (8,14). Peanut seedlings held at 100% relative humidity retained 80% of the amount of 2,4-DB applied on the leaf surface (9). The 2,4-D, formed from beta-oxidation within the treated leaf, appeared to be the more mobile product (9).…”

mentioning

confidence: 91%

“…However, beta oxidation within plant tissue produces 2,4-D which is phytotoxic (9,14). 2,4-DB is not readily absorbed nor translocated (8,14).…”

mentioning

confidence: 99%

“…A number oflegume crops, including peanuts are tolerant of 2,4-DB [2,(2,4-dichlorophenoxy) butanoic acid] applied postemergence for broadleaf weed control (3). Ketchersid (9) reported thata single applications of2,4-DB at 0.9 kglha to peanuts during the reproductive stage (the most herbicide sensitive period) reduced both yield and market grade. However, repeat applications of 0.45 kglha had no effect.…”

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confidence: 99%

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Paraquat Behavior as Influenced by 2, 4-DB in Peanut (Arachis hypogaea) and Selected Weeds1

Wehtje¹,

Wilcut²,

McGuire

1992

Peanut Science

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The interaction of 2,4-DB and paraquat on weed control and crop safety in peanuts was examined in greenhouse, field, and laboratory experiments. Tank mixtures of paraquat and 2,4-DB were no more injurious to peanuts than paraquat applied alone in greenhouse and field experiments. These tank mixtures were neither interactive nor synergistic with respect to weed control. Underfield conditions, tank mixtures provided more comprehensive weed control and improved yield relative to either herbicide applied alone. Studies with 14C-Iabeled herbicides revealed that the absorption and translocation of paraquat and 2,4-DB was not influenced by the presence of other herbicide.

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“…Visual injury symptoms of 2,4-DB can be observed in the form of rolled or elongated foliage [41,42].…”

Section: Introductionmentioning

confidence: 99%

Weed Control and Peanut Tolerance with Ethalfluralin-Based Herbicide Systems

Grichar¹,

Dotray

2012

International Journal of Agronomy

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Field studies were conducted from 2007 through 2009 to determine weed efficacy and peanut (Arachis hypogaea L.) response to herbicide systems that included ethalfluralin applied preplant incorporated. Control of devil's claw (Proboscidea louisianica (Mill.) Thellung), yellow nutsedge (Cyperus esculentus L.), Palmer amaranth (Amaranthus palmeri S. Wats.), and puncturevine (Tribulus terrestris L.) was most consistent with ethalfluralin followed by either imazapic or imazethapyr applied postemergence. Peanut stunting was 19% when paraquat alone was applied early-postemergence. Stunting increased to greater than 30% when ethalfluralin applied preplant incorporated was followed by S-metolachlor applied preemergence and paraquat applied earlypostemergence. Stunting (7%) was also observed when ethalfluralin was followed by flumioxazin plus S-metolachlor applied preemergence with lactofen applied mid-postemergence. Ethalfluralin followed by paraquat applied early-postemergence reduced peanut yield when compared to the nontreated check. Ethalfluralin applied preplant incorporated followed by imazapic applied mid-postemergence provided the greatest yield (6220 kg/ha). None of the herbicide treatments reduced peanut grade (sound mature kernels plus sound splits) when compared with the nontreated check.

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Effects of 2,4-DB on Yield and Pod Development in Peanuts

Cited by 16 publications

References 0 publications

Response of Eight Peanut (Arachis hypogaea L.) Cultivars to the Herbicide AC 263,222

Response of Eight Peanut (Arachis hypogaea L.) Cultivars to the Herbicide AC 263,222

Paraquat Behavior as Influenced by 2, 4-DB in Peanut (Arachis hypogaea) and Selected Weeds1

Weed Control and Peanut Tolerance with Ethalfluralin-Based Herbicide Systems

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