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Journal ArticleDOI

Bio-potential of compost tea from agro-waste to suppress Choanephora cucurbitarum L. the causal pathogen of wet rot of okra.

01 Apr 2009-Biological Control (Academic Press)-Vol. 49, Iss: 1, pp 38-44
TL;DR: Glass house trials indicated that induced host resistance was stimulated in okra plants treated with non-sterilized and filter-sterILized compost teas based on the detection of inducible resistance-related compounds, confirming the possible involvement of induced resistance.
About: This article is published in Biological Control.The article was published on 2009-04-01. It has received 108 citations till now. The article focuses on the topics: Choanephora cucurbitarum & Choanephora.
Citations
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Journal ArticleDOI
TL;DR: A wide range of organic amendments (OA) is currently available to Australian farmers, but the widespread adoption of OA in Australia has been limited, due in part to the high application rates required to produce agronomic benefits, a lack of consistency in the composition of some products, a poor public perception of their utility, and an unbiased scientific research into the agricultural potential of these products.
Abstract: A wide range of organic amendments (OA) is currently available to Australian farmers. These products have numerous agronomic applications, including the supply of plant nutrients, control of pests and diseases, and in management of soil health. Several of these products are also used in contaminated and degraded land remediation. The most commonly identifiable groups of OA in Australia are composts, compost teas, vermicasts, humic substances, meat, blood and bone meal, fish hydrolysates, seaweed extracts, bio-inoculants, biodynamic products, and biochars. Many of these OA contain nutrients within organic molecular structures; these nutrients are usually not immediately available to plants and must first be mineralised. Mineralisation often occurs as OA are consumed by microbes, thereby stimulating soil microbial activity. The application of OA such as bio-inoculants, humic substances, and seaweed extracts can potentially stimulate crop growth and development through the actions of plant growth-promoting hormones, including cytokinins, auxins, and gibberellins. Yet despite these apparent benefits, the widespread adoption of OA in Australia has been limited, due in part to the high application rates required to produce agronomic benefits, a lack of consistency in the composition of some products, a poor public perception of their utility, and a lack of unbiased scientific research into the agricultural potential of these products.

211 citations


Cites background from "Bio-potential of compost tea from a..."

  • ...Siddiqui et al. (2009) suggested that the environmental conditions of the leaf surface of okra (Abelmoschus esculentus L.) reduced the survival of bio-control microbial species in a compost tea....

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  • ...For example, composts and compost teas used for this purpose have been produced from a wide range of organic materials, such as pine bark, cow manure, and rice straw (Al-Dahmani et al. 2003; Siddiqui et al. 2009)....

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Journal ArticleDOI
Ugo De Corato1
TL;DR: In this article, the most promising technologies in order to recycle in situ residual biomass into high-value added products for soil amendment (compost) and plant treatment (Compost-based tea).

139 citations

Journal ArticleDOI
TL;DR: Among the tested compost teas, NCT prepared from sheep manure compost consistently provided the highest inhibition of mycelial growth and the highest disease suppression, in particular of gray mold (>95% disease reduction).

117 citations


Cites background or methods from "Bio-potential of compost tea from a..."

  • ...…within the NCT that, while not directly inhibitory to B. cinerea mycelial growth in vitro, had a possible effect on the induction of intrinsic plant defenses that help stave off gray mold as has been reported in other systems (Zhang et al., 1998; Haggag and Saber, 2007; Siddiqui et al., 2009)....

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  • ...Chicken manure compost h; sheep manure (SM1) compost ; bovine manure compost ; shrimp compost ; seaweed compost ; water control j. composts: SM1 h; SM2 ; SM3 ; SM4 ; water control j. and/or penetration inside the plant cells as have been shown previously (Diánez et al., 2007; Siddiqui et al., 2009)....

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  • ...in vitro, had a possible effect on the induction of intrinsic plant defenses that help stave off gray mold as has been reported in other systems (Zhang et al., 1998; Haggag and Saber, 2007; Siddiqui et al., 2009)....

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  • ...and/or penetration inside the plant cells as have been shown previously (Diánez et al., 2007; Siddiqui et al., 2009)....

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  • ...In this respect, compost teas are viewed as potential alternatives to the use of synthetic chemical fungicides as they provide a means of controlling plant pathogens that are deemed safer for health and the environment (Siddiqui et al., 2009)....

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Journal ArticleDOI
TL;DR: The inoculation of composts with biological control agents, manipulation of compost tea production process, and the use of new techniques for organic matter characterization and microbial community profiling may improve the efficacy and reliability of disease control obtained.
Abstract: Numerous studies have demonstrated the potential of composted organic wastes not only as substitutes for peat as a growth substrate but also to stimulate plant growth and suppress soil-borne diseases. The major impediment to the use of compost as substrates or biocontrol agents has been variation in physical and chemical characteristics and disease suppression levels across and within compost types, sources, and batches. Compost tea, a product of compost, has also been shown to suppress soil-borne diseases including damping-off and root rots (Pythium ultimum, Rhizoctonia solani, Phytophthora spp.) and wilts (Fusarium oxysporum and Verticillium dahliae). Although the mechanisms involved in disease suppression are not fully understood, sterilization of composts and compost teas has generally resulted in a loss in disease suppressiveness. This indicates that the mechanism of suppression is often, or predominantly, biological, although chemical and physical factors have also been implicated. The inoculation o...

102 citations


Cites background from "Bio-potential of compost tea from a..."

  • ...Factors affecting disease suppression induced by compost teas As with compost, the maturity and source of compost used to make the compost teas have been shown to affect the suppressivity of the teas (Siddiqui et al. 2009; Tränkner 1992)....

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  • ...Siddiqui et al. (2009) reported that non-sterilized ACT made from rice straw (RST) and empty fruit bunch (EFB) of oil palm composts inhibited conidial germination of Choanephora cucurbitarum, the causal pathogen for wet rot of okra....

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  • ...Factors affecting disease suppression induced by compost teas As with compost, the maturity and source of compost used to make the compost teas have been shown to affect the suppressivity of the teas (Siddiqui et al. 2009; Tränkner 1992)....

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Journal ArticleDOI
TL;DR: In this article, the feasibility of using combined organic and inorganic fertilizers as an alternative to conventional inorganic fertilizer was tested for tomato crops, and two different composts (compost from a mixture of cow manure+ alperujo++olive prunings and compost from sheep and goat manure) were added to an agricultural soil either, alone or along with in-organic fertilization, for tomato cultivation in greenhouse conditions.

85 citations

References
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TL;DR: The present work focused on the response of Plant Cell Wall Hydroxyproline-Rich Glycoproteins to Microbial Pathogens and their Elicitors and the role of thionins in the Resistance of Plants.
Abstract: Occurrence and Properties of Plant Pathogenesis Related Proteins-Professor Van Loon PR-1, a Group of Plant Proteins Induced upon Pathogen Infection- Dr. Annemarie Buchel, and Professor Huub Linthorst Functions and Regulation of Plant b-1, 3-glucanases (PR-2)-Dr. Gerhard Leubner Metzger, and Professor Dr. Frederick Meins, Jr. Plant Chitinases (PR-3, PR-4, PR-8, PR-11)-Professor Dr. Jean-Marc Neuhaus The PR-5 Family Thaumatin-Like Proteins-Dr. R. Velazhahan, Dr. S. K. Datta, and Professor Muthukrishnan The PR-6 Family Proteinase Inhibitors in Plant-Microbe Interactions-Dr. Thierry Heitz, Dr. Pierett Geoffroy, Dr. Bernard Fritig, and Dr. Michael Legrand The Response of Plant Cell Wall Hydroxyproline-Rich Glycoproteins to Microbial Pathogens and their Elicitors-Dr. Marie Therese Esquerre- Tugaye, Dr. C. Campargue, and Dr. D. Mazau Induction of Peroxidase During Defense Against Pathogens-Dr. C. M. Chittoor, Professor J. E. Leach, and Professor F. F. White Signal Transduction and Pathogen-induced PR Gene Expression-Jian-Min Zhou The Role of Thionins in the Resistance of Plants-Dr. Holger Bohlmann Ribosome Inactivating Proteins: Structure, Function, and Engineering-Dr. Anders B. Jensen, Dr. Robert Leach, Dr. Bushra Chaudhury, and Professor John Mundy Plant Defensins-Dr. Alexandre de Silva Conceicao, and Dr. Willem Broekaert Expression and Function of PR-Protein Genes in Transgenic Plants-Dr. Karabi Datta, Professor Subbaratnam Muthukrishnan, and Dr. Swapan K. Datta

426 citations