Crop management practices in the control of peanut diseases caused by soilborne fungi

Gil, Silvina Vargas; Haro, Ricardo; Oddino, Claudio; Kearney, Marcelo Isaías; Zuza, Mónica; Marinelli, A.; March, G. J.

doi:10.1016/j.cropro.2007.03.010

Cited by 21 publications

(11 citation statements)

References 36 publications

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“…According to the present results and in agreement with those found by Beare et al (1993), Gomez et al (2007) and Vargas Gil et al (2008), the population of Trichoderma spp. of the soil studied were most abundant and prevalent in no-tillage or reduced tillage systems.…”

Section: Discussionsupporting

confidence: 93%

Impact of different cropping conditions and tillage practices on the soil fungal abundance of a Phaeozem luvico

Gómez

Aulicino²,

Mónaco

et al. 2015

Span. j. agric. res.

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<p>Fungal diversity seems to be a good indicator of ecosystem disturbance and functioning. The purpose of this work was to quantify the fungal population as a sensitive indicator of the changes caused by stubble placement in two tillage systems: reduced tillage (RT) and conventional tillage (CT) with and without cropping. To this end, we determined the effect of soil disturbances such as N fertilization, tillage practice, and cropped area on the soil fungal communities of a Phaeozem luvico of the El Salado river basin (Argentina). Soil samples (at 0-10 cm depth) were collected from a field cultivated with wheat at post-harvest, before sowing and at tillering. The relative abundance of individuals of the fungal population was studied on Nash Snyder and Oxgall agar media after different treatments and assessed as colony forming units (CFU/gof soil). The diversity of the fungal population was studied by Shannon´s index (H). The tillage system showed a marked effect only at post-harvest and the number of propagules was highest under RT for both culture media. The largest values of H were found only at post-harvest when Oxgall agar was used. A significant decrease in the values of H was observed when CT and high fertilization was applied in the wheat cropped area. The relative abundance of individuals of the fungal population was different in soils under the different tillage practices.</p>

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Section: Discussionsupporting

confidence: 93%

Impact of different cropping conditions and tillage practices on the soil fungal abundance of a Phaeozem luvico

Gómez

Aulicino²,

Mónaco

et al. 2015

Span. j. agric. res.

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“…In this study, soil mechanical impedance to root growth was lower with paratill subsoiler tillage than with the other tillage systems; in fact, impedance values of 2-3 MPa were obtained in three cropping years, which is considered adequate for normal growth of peanut roots (Cholaky et al 2001;Giayetto 1995). Vargas Gil et al (2008aGil et al ( , 2008b recently reported that the greatest native populations of biocontrol agents were found in a no-till system and that the smallest ones were detected in reduced or conventional tillage, with brown root rot incidence being lower in the no-till system than in reduced or conventional tillage systems.…”

Section: Discussionmentioning

confidence: 96%

“…The surface crop residues and the extensive amounts of roots of grain crops promote biocontrol agents and reduce soil compaction (Burke and Kraft 1974;Campbell 1994;Cook 2000;Dick 1992;Doupnik and Boosalis 1980;Ferguson and Shew 2001). Vargas Gil et al (2008aGil et al ( , 2008b analyzed the influence of corn and soybean on the native population dynamics of potential biocontrols in a peanut crop and demonstrated the significance of corn in crop rotation.…”

Section: Discussionmentioning

confidence: 98%

“…Deep tillage practices with soybean and corn are used in compacted soils to improve crop yields in some areas of Argentina (Díaz-Zorita 2000). However, in peanut there is little information about possible interaction between crop rotation and tillage practices to recommend them individually or in combination in root rot management (Vargas Gil et al 2008a).…”

Section: Introductionmentioning

confidence: 99%

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Influence of crop rotation and tillage on incidence of brown root rot of peanut caused byFusarium solaniin Argentina

Oddino

Marinelli

Zuza

et al. 2008

Canadian Journal of Plant Pathology

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Brown root rot caused by Fusarium solani is one of the most important diseases of peanut in Argentina. The influence of crop rotation and tillage practices on diseases caused by Fusarium spp. has been widely reported in other crops. A field experiment was conducted from the agricultural year to determine whether crop rotation and tillage had any influence on the incidence of brown root rot. Crop rotation included corn (Zea mays), peanut (Arachis hypogaea), and soybean (Glycine max). Corn and soybean were always seeded in a no-till system, whereas peanut was grown under four different tillage systems (disk harrow, chisel plow, no-till, and paratill subsoiler). Soil mechanical impedance (MPa), disease incidence, and yield were measured in peanut plots under each tillage system. Use of a paratill subsoiler before seeding peanut in the no-till system generally reduced the subsurface layer of compacted soil, which provided a favourable environment for root growth and, consequently, reduced disease incidence. Furthermore, reduction of root rot incidence was greater in a 2-year rotation, including corn-soybean or soybean-corn prior to peanut, than in a 1-year rotation. Incidence of brown root rot with different tillage systems 2 weeks before harvest showed a strong inverse linear relationship with pod yield. The use of a paratill subsoiler before seeding peanut in a no-till system could be a suitable strategy to improve peanut root growth and reduce disease incidence, which provides a promising alternative in the control of root rot in the southern production region of Argentina.Résumé : La pourriture brune de la racine causée par Fusarium solani est une des principales maladies de l'arachide en Argentine. L'influence qu'ont la rotation des cultures et le travail du sol sur les maladies causées par Fusarium spp. a été largement documentée en ce qui a trait à d'autres cultures. Une expérience au champ a été menée durant la période couvrant les années de culture 2001-2002 à 2005-2006 afin de déterminer si la rotation des cultures et le travail du sol avaient une influence quelconque sur l'incidence de la pourriture brune de la racine. Les cultures utilizées en alternance étaient le maïs (Zea mays), l'arachide (Arachis hypogaea) et le soja (Glycine max). Pour le maïs et le soja, on a toujours utilizé le semis direct tandis que, pour l'arachide, on a fait appel à quatre méthodes de travail du sol : hersage (herse à disque), travail profond (chisel), semis direct et sous-solage. L'impédance mécanique du sol (MPa), l'incidence de la maladie et le rendement ont été mesurés dans les parcelles où l'arachide était cultivée selon les quatre méthodes. L'utilization d'une charrue soussoleuse avant de semer l'arachide par semis direct a, d'une façon générale, ameubli la couche inférieure de terre compactée, ce qui a fourni un environnement propice à la croissance des racines, réduisant de ce fait l'incidence de la maladie. De plus, la diminution de l'incidence de la pourriture de la racine était plus marquée lors d'une rotation maïs...

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“…Global peanut production has reached 34.42 million metric tons, with China producing the highest amount of peanuts any country can produce. Peanut yields are substantially reduced because of the damage caused by subterranean insects and bacterial and fungal diseases (Vargas et al, 2008). The recalcitrance of peanuts to tissue regeneration and genetic transformation impedes the development of genetically modified approaches for pest and disease control.…”

Section: Introductionmentioning

confidence: 99%

High-efficiency regeneration of peanut (Arachis hypogaea L.) plants from leaf discs

Li¹,

Niu²,

Shu³

et al. 2011

Afr. J. Biotechnol.

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A high-efficiency regeneration system for peanut plants was established. The regeneration frequency of leaf discs reached 40.9% on Murashige and Skoog medium supplemented with 0.5 mg l -1 naphthylacetic acid and 0.5 mg l -1 thidiazuron. The regenerated shoots elongated, developed roots and produced seeds. This procedure was highly efficient and is feasible for the genetic transformation of peanuts.

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Crop management practices in the control of peanut diseases caused by soilborne fungi

Cited by 21 publications

References 36 publications

Impact of different cropping conditions and tillage practices on the soil fungal abundance of a Phaeozem luvico

Impact of different cropping conditions and tillage practices on the soil fungal abundance of a Phaeozem luvico

Influence of crop rotation and tillage on incidence of brown root rot of peanut caused byFusarium solaniin Argentina

High-efficiency regeneration of peanut (Arachis hypogaea L.) plants from leaf discs

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