Saprophytic and pathogenic behaviour of R. solani AG2-1 (ZG-5) in a soil amended with Diplotaxis tenuifolia or Brassica nigra manures and incubated at different temperatures and soil water content

Yulianti, Titiek; Sivasithamparam, Krishnapillai; Turner, D. W.

doi:10.1007/s11104-007-9254-0

Cited by 26 publications

(17 citation statements)

References 24 publications

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“…The addition of brassicas green manure to soil at 5% concentration suppressed the saprophytic growth of R. solani for about 82–87% comparing to control (no addition), after one month of trial duration [46]. …”

Section: Biofumigation As An Alternative Methods Of Crop Protectionmentioning

confidence: 99%

Use of Brassica Plants in the Phytoremediation and Biofumigation Processes

Szczygłowska

Piekarska

Konieczka

et al. 2011

IJMS

118

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In recent decades, serious contamination of soils by heavy metals has been reported. It is therefore a matter of urgency to develop a new and efficient technology for removing contaminants from soil. Another aspect to this problem is that environmental pollution decreases the biological quality of soil, which is why pesticides and fertilizers are being used in ever-larger quantities. The environmentally friendly solutions to these problems are phytoremediation, which is a technology that cleanses the soil of heavy metals, and biofumigation, a process that helps to protect crops using natural plant compounds. So far, these methods have only been used separately; however, research on a technology that combines them both using white cabbage has been carried out.

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Section: Biofumigation As An Alternative Methods Of Crop Protectionmentioning

confidence: 99%

Use of Brassica Plants in the Phytoremediation and Biofumigation Processes

Szczygłowska

Piekarska

Konieczka

et al. 2011

IJMS

118

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“…This process involves growing a Brassica crop (known as the break crop) during the intercrop period and then grinding it up and incorporating the residues into the soil. The direct noxious effect of allelochemicals has been clearly demonstrated in several organisms, but there is increasing evidence to suggest that other mechanisms, such as changes in the structure of soil microbial communities, may have an indirect effect on pathogens, in the long term (Yulianti et al 2007;Mazzola et al 2007). Motisi et al (2009) recently observed temporal changes in the efficiency of control of the soilborne pathogen Rhizoctonia solani by Brassica juncea residues.…”

Section: Effect Of a Cover Crop On Pest Communitiesmentioning

confidence: 99%

Agroecosystem management and biotic interactions: a review

Médiène

Valantin‐Morison

Sarthou

et al. 2011

Agronomy Sust. Developm.

141

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Increasing the use of synthetic fertilisers and pesticides in agroecosystems has led to higher crop yields, accompanied by a decline in biodiversity at the levels of field, cropping system and farm. Biodiversity decline has been favoured by changes at landscape level such as regional farm specialisation, increases in field size, and the removal of hedgerows and woodlots. The loss of biodiversity in agroecosystems has increased the need for external inputs because beneficial functions are no longer provided by beneficial species as natural enemies of crop pests and ecosystem engineers. This trend has led to a strong reliance on petrochemicals in agroecosystems. However, many scientists have been arguing for more than two decades that this reliance on petrochemicals could be considerably reduced by a better use of biotic interactions. This article reviews options to increase beneficial biotic interactions in agroecosystems and to improve pest management and crop nutrition whilst decreasing petrochemical use. Four agronomic options are presented. First, it has been shown that the choice of cultivar, the sowing date and nitrogen fertilisation practices can be manipulated to prevent interactions between pests and crop, in either time or space. Nevertheless, the efficacy of these manipulations may be limited by pest adaptation. Second, beneficial biotic interactions may result from appropriate changes to the habitats of natural enemies and ecosystem engineers, mediated by soil and weed management. Here, knowledge is scarce, and indirect and complex effects are poorly understood. Third, changes achieved by crop diversification and, fourth, by landscape adaptation are promising. However, these practices also present drawbacks that may not necessarily be outweighed by beneficial effects. Overall, these four management approaches provide a powerful framework to develop sustainable agronomic practices. (Résumé d'auteur

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“…This chemical reaction produces a number of bio-active metabolites including isothiocyanates, thiocyanates, nitriles, and other sulfur containing compounds (Cole 1976;Sang et al 1984;Mithen 2001;Warton et al 2001;Morra and Kirkegaard 2002). Many factors could contribute to the inconsistency in correlating glucosinolates and their metabolites to disease control because of their differences in toxicity and cumulative availability or persistence in soils (Yulianti et al 2007). For example, depending on the soil type, the half-life of glucosinolates in surface soils (<25 cm depth) under laboratory conditions was 3.5 to 15.5 h (at 20 ºC, Gimsing et al 2006).…”

Section: Introductionmentioning

confidence: 99%

Production of methyl sulfide and dimethyl disulfide from soil-incorporated plant materials and implications for controlling soilborne pathogens

et al. 2009

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Soil-incorporated plant materials have been associated with reduction in soilborne pathogens and diseases. Mechanisms of the biocidal actions are complex and not well understood. A glasshouse experiment, a non replicated field demonstration, and a field experiment were conducted to determine volatile compounds after incorporation of various plant species and their effect on pest control. Cabbage (Brassica oleracea), canola (Brassica rapa), kale (Brassica oleracea var. acephala), lettuce (Lactuca sativa var. valmaine), two mustard varieties -Caliente (Brassica juncea) and Green wave (Brassica juncea), two radish varieties -Oil seed (Raphanus sativus var. oleiformis) and Cherriette (Raphanus sativus), common rye (Secale cereale), and sorghum Sudan grass (Sorghum bicolor var. sudanese) were used in the glasshouse experiment. Caliente 199 mustard (Brassica hirta) was planted in the field demonstration and white mustard (Sinapis alba) was used in the field experiment. Fresh plant materials were chopped manually in the glasshouse experiment and mechanically in the field studies at the flowering stage before incorporation in natural field soils. In the glasshouse experiment, the equivalent biomass dry weight ranged from a minimum of 573 gm −2 for L. sativa var. valmaine to a maximum of 1851 gm −2 for S. bicolor var. sudanese. The average biomass was 792 gm −2 for B. hirta and 804 gm −2 for S. alba in the two field studies, respectively. The glasshouse experiment used a loamy sand field soil inoculated with a natural fine sandy loam soil that was known to contain high populations of Verticillium dahliae. Soils at both field sites belonged to the sandy loam series, and efforts were made to maintain sufficient soil moisture for plant growth. Although the interest was to determine all volatile compounds in general, only methyl sulfide and dimethyl disulfide were identified and subsequently quantified. Depending on plant species and time of sampling (one to seven days after soil incorporation), 2.7 to 346.4μg g −1 plant dry weight for methyl sulfide and 0 to 283.2μg g −1 plant dry weight for dimethyl disulfide were found in the glasshouse experiment. In general, high concentrations of dimethyl disulfide and methyl sulfide appeared to have reduced V. dahliae colony counts in bioassay potato stem saps in the glasshouse experiment. However, the correlation was weak (R 2 =0.31), but a relatively stronger correlation

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Saprophytic and pathogenic behaviour of R. solani AG2-1 (ZG-5) in a soil amended with Diplotaxis tenuifolia or Brassica nigra manures and incubated at different temperatures and soil water content

Cited by 26 publications

References 24 publications

Use of Brassica Plants in the Phytoremediation and Biofumigation Processes

Use of Brassica Plants in the Phytoremediation and Biofumigation Processes

Agroecosystem management and biotic interactions: a review

Production of methyl sulfide and dimethyl disulfide from soil-incorporated plant materials and implications for controlling soilborne pathogens

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