Effect of five postemergence herbicides on red clover shoot and root growth in greenhouse studies

Ceballos, Ricardo; Palma, G. Massimo; Brevis, Hernán; Ortega, Fernando; Quiróz, Andrés

doi:10.7202/010907ar

Cited by 11 publications

(21 citation statements)

References 23 publications

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“…The phytotoxic effect of MCPA, bentazon, 2,4-DB, flumetsulam, haloxifop-methyl, and of the mixtures usually used on red clover as flumetsulam/2,4-DB and bentazon/MCPA herbicides have been reported (Ceballos et al, 2004). In our study, all the herbicides were evaluated at recommended and twice recommended rate and all caused early foliar damage, but bentazon and bentazon/MCPA produced the greatest shoot damage.…”

Section: Introductionmentioning

confidence: 52%

“…Fusarium root rot is a common disease in Chilean red clover pastures, as well as in other areas in the world (Ceballos et al, 2004(Ceballos et al, , 2006Galdames, 1991;Steiner and Alderman, 1999;Venuto et al, 1995), causing reductions in productivity and persistence (Coulman and Lambert, 1995;Leath, 1985;Venuto et al, 1996). Fusarium oxysporum Schldt.…”

Section: Introductionmentioning

confidence: 99%

“…Fusarium oxysporum Schldt. is the most common, economically important and studied Fusarium species (Ceballos et al, 2004;2006;Venuto et al, 1995;Venuto et al, 1999). Fusarium affected plants may exhibit poor emergence, and the resulting seedlings are often stunted and weak.…”

Section: Introductionmentioning

confidence: 99%

“…MCPA causes stunting, distortion and gall formation on the roots of a number of crops (Tharp and Kells, 2000). Studies on MCPA used for weed control on red clover in Chile indicated that this herbicide had the most detrimental effects on red clover plants (Ceballos et al, 2004). On the other hand, bentazon is a contact herbicide that inhibits photosynthesis by specifically inhibiting photosystem II (Bradshaw et al, 1992;Fleming et al, 1988).…”

Section: Introductionmentioning

confidence: 99%

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BENTAZON-MCPA EFFECT ON Fusarium oxysporum ROOT ROT ON Trifolium pratense IN GREENHOUSE CONDITIONS

Ceballos

Cofre

Quiróz

et al. 2009

R.C. Suelo Nutr. Veg.

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Herbicide and Fusarium effect on red clover root rot, Ceballos et al. 142 BENTAZON-MCPA EFFECT ON ABSTRACTIn Chile, the main factor in red clover (Trifolium pretense L.) stand decline is fusariumroot rot, which results in a reduction in yield. Fusarium oxysporum (Schlect.) is the most prevalent pathogen recovered from diseased red clover roots plants. Agronomical management of red clover includes application of broadleaf herbicides such as MCPA and bentazon. This study was conducted to evaluate the effects of bentazon and bentazon/MCPA mixture on phytotoxicity and root rot as caused by F. oxysporum on red clover, under greenhouse conditions. In addition, in vitro mycelial growth and conidial germination of F. oxysporum was studied. A reduction of 40% in crown diameter and 57% shoot dry weight was observed 30 days after treatment with a high rate of bentazon/MCPA and F. oxysporum inoculum. The bentazon -F. oxysporum interaction reduced root dry weight by 57% at 1X rate and 42% with 2X rate at 20 and 30 of evaluation. Bentazon caused a significant increase in phytotoxicity at the high rate and the mixture bentazon/MCPA increased root rot severity and phytotoxicity at the high rate. The conidial germination and mycelial growth were significantly reduced by bentazon/MCPA. These results suggest that red clover growth and persistence could be adversely affected by F. oxysporum after bentazon and bentazon/MCPA application.

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Section: Introductionmentioning

confidence: 52%

Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

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BENTAZON-MCPA EFFECT ON Fusarium oxysporum ROOT ROT ON Trifolium pratense IN GREENHOUSE CONDITIONS

Ceballos

Cofre

Quiróz

et al. 2009

R.C. Suelo Nutr. Veg.

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“…Ceballos et al (2004) detected 2,4-D root injury at the beginning of the experiment. Moreover, Garcia and Jordon (1969) found that nodulation and nitrogen fixation in birdsfoot trefoil (Lotus corniculatus L.) were reduced by 2,4-D. Martensson (1992) reported that, despite the ability of certain Rhizobium trifolii strains to detoxify glyphosate, its use inhibited root nodulation in red clover (Trifolium pratense).…”

Section: Treatmentsmentioning

confidence: 99%

White clover tolerance to herbicides applied at different rates and phenological stages

Adami¹,

Modolo²,

Adami³

et al. 2017

Afr. J. Agric. Res.

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Glyphosate, 2,4-D, imazethapyr and paraquat + diuron were studied in greenhouse experiments at four application rates in order to evaluate their effects on white clover (Trifolium repens L.) growth and aerial shoot injury at three different phenological stages. Herbicide-induced foliar injury on white clover ranged from no symptoms to early chlorosis, leaf necrosis, stunted growth and death depending on herbicide rate and white clover phenological stage. Imazethapyr showed the highest selectivity at the three-leaf trifoliate stage. Seedlings treated with glyphosate at 1080 g a.i. ha -1 , however, were dead at 21 days after application (DAA). White clover herbicide tolerance increased with plant age, and selectivity was found to be affected as herbicide rate increased. Paraquat + diuron caused the highest levels of white clover phytotoxicity and plant death. The herbicides studied showed potential to be used as selective products on white clover depending on their rates, as well as the timing of their application onto white clover depending furthermore, on the specificity weeds infesting white clover fields.

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Influence of Organic Amendment on the Biodegradation and Movement of Pesticides

Briceño

Palma

Durán

2007

Critical Reviews in Environmental Science and Technology

149

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Effect of five postemergence herbicides on red clover shoot and root growth in greenhouse studies

Cited by 11 publications

References 23 publications

BENTAZON-MCPA EFFECT ON Fusarium oxysporum ROOT ROT ON Trifolium pratense IN GREENHOUSE CONDITIONS

BENTAZON-MCPA EFFECT ON Fusarium oxysporum ROOT ROT ON Trifolium pratense IN GREENHOUSE CONDITIONS

White clover tolerance to herbicides applied at different rates and phenological stages

Influence of Organic Amendment on the Biodegradation and Movement of Pesticides

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