Effect of alternative treatments on seed-borne<i>Didymella lycopersici</i>in tomato

Kasselaki, A.-M.; Malathrakis, N. E.; Goumas, Dimitrios E.; Cooper, Julia; Leifert, Carlo

doi:10.1111/j.1365-2672.2007.03715.x

Cited by 13 publications

(8 citation statements)

References 24 publications

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Section: Introductionmentioning

confidence: 99%

“…Effective seed treatments for fungal diseases, based on fungicides are available for conventional production systems [2][3][4]. Also for organic production systems a range of alternative treatments has recently been described [3]. However, currently available treatments for seed-borne bacterial pathogens (e.g., copper fungicides) are only partially effective, and the control of bacterial seed diseases remains a challenge in both organic and conventional production [2,4].…”

Section: Introductionmentioning

confidence: 99%

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Effect of alternative strategies for the disinfection of tomato seed infected with bacterial canker (Clavibacter michiganensis subsp. michiganensis)

Kasselaki

Goumas

Tamm

et al. 2011

NJAS: Wageningen Journal of Life Sciences

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Currently there is a lack of effective seed treatments for bacterial pathogens, with Cu-based compounds (the only chemical treatments permitted under organic farming standards) only providing partial control. The aim of this study was to quantify the effect of alternative treatments for the control of bacterial canker (Clavibacter michiganensis subsp. michiganensis), a major seed-borne bacterial disease in tomato. Treatments assessed were acidified nitrite (a treatment previously shown to control the seed-borne fungal disease Didymella lycopersici), antagonistic strains of Bacillus spp. and compost extracts, which were not previously evaluated as treatments for seed-borne diseases. Efficacy of treatments was determined in a seed disinfection assay. Ten-minute immersion of seed in 300 mmol l −1 acidified nitrite resulted in 98% being pathogen free. Copper hydroxide, certain strains of Bacillus spp. and all compost extracts resulted in 100% pathogen free seed.

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Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Effect of alternative strategies for the disinfection of tomato seed infected with bacterial canker (Clavibacter michiganensis subsp. michiganensis)

Kasselaki

Goumas

Tamm

et al. 2011

NJAS: Wageningen Journal of Life Sciences

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“…In this respect, Kasselaki et al, (2008) tested nitrite solution and resistance inducers in a growth chamber against Didymella lycopersici-a seed-borne fungus of tomato. Ten minutes seed soaking with nitrite solution at 300mM concentration and resistance inducer Tillecur (mustard seed extract) at 0.05g/ml reduced seed germination losses and disease incidence in germinating seedlings.…”

Section: Prevalence Of Seed-borne Mycoflora-a Historicalmentioning

confidence: 99%

Management of Seed Borne Fungal Diseases of Tomato: A Review

Chohan

Perveen²,

Abid³

et al. 2017

Pak. J. Phytopathol.

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Plant diseases caused by different kinds of microorganisms either carried through air, water or present in soil, seeds or propagative planting materials have adverse impact on agriculture production and economy worldwide. Apart from other crops vegetables are also subjected to several seed borne fungal, bacterial and viral pathogens, which cause substantial yield loss upto 10 percent in Pakistan. This article gives vast information regarding significance and prevalence of various kinds of seed borne mycoflora (Alternaria solani, Fusarium oxysporum, F. solani, Botrytis cineria, A. alternata, Chaetomium globosum, Curvularia lunata, Aspergillus niger, Drechslera specifer and Rhizoctonia solani) particularly associated with seeds of tomato. These mycoflora are causative agents of devastating tomato diseases like early blight, fusarium wilt and foot rots, grey mold, root and fruit rots. A range of conventional and modern techniques employed for seed borne fungal detection and different control strategies including chemical and biological methods opted by researchers have been reviewed in present paper. A variety of factors like availability of susceptible plants, favorable environmental conditions and overhead irrigation are serious constraints for plant disease development. Under these conditions, monitoring of plant health and detection of diseases particularly using seed detection assays to screen infested seed lots before planting provide effective disease management strategy.

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“…The latter has already been implemented in seed treatment practice under the name ThermoSeed TM for the disinfection of large cereal lots (Koch, 2006). Reviews on organic seed treatments have been published (Micheloni et al, 2007;Jahn et al, 2007) and some non-chemical seed treatments were tested on tomato, spinach, bean and pea among others (e.g., Kasselaki et al, 2008Kasselaki et al, , 2011du Toit and Hernandez-Perez, 2005;Tinivella et al, 2009). These novel methods of seed treatment can improve the seed quality considerably.…”

Section: Introductionmentioning

confidence: 99%

Bioseedling: a chain approach to the production of healthier seeds and seedlings of Lamb’s lettuceValerianella locusta

Herforth-Rahmé¹,

Fuchs²,

Hofer³

et al. 2017

Acta Hortic.

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The project BIOSEEDLING "Robust planting material from seeds to young plants-an implementation oriented chain approach" aims to find improved production procedures for vegetable seedlings of lamb's lettuce. First, the production of lamb's lettuce seeds of a professional seed producer was analyzed and the effect of harvest time and seed size on the germination and disease rate in the seeds was studied. Then, using seeds naturally infected by Peronospora valerianellae and Acidovorax valerianellae, several seed disinfection methods were compared: aerated steam, hot water, sodium hypochlorite, ethanol, Calcium hydroxide, and compost pellet. After testing methods for the identification of the seed pathogens and the quantification of the infection, an assessment on how the different treatments reduce the pathogens and whether they alter the seeds germination capacity was made. In a third step, substrates suppressive of the soil borne pathogens Rhizoctonia solanii and Pythium ultimum were developed and several plant protection agents were tested against Peronospora valerianellae. Furthermore, the effect of night interruption on the sporulation of lamb's lettuce downy mildew (Peronospora valerianellae) using periods of lighting in the red and blue regions was tested. The aim is to combine the best methods resulting from all the experiments cited above in a future experiment and compare them to the standard methods in an on-farm experiment.

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Effect of alternative treatments on seed-borneDidymella lycopersiciin tomato

Abstract: There is currently a lack of effective seed treatments that can be used in organic and low-input crops. Treatments identified in this study can be considered as an effective alternative to chemical control against seed-borne fungal pathogens.

Cited by 13 publications

References 24 publications

Effect of alternative strategies for the disinfection of tomato seed infected with bacterial canker (Clavibacter michiganensis subsp. michiganensis)

Effect of alternative strategies for the disinfection of tomato seed infected with bacterial canker (Clavibacter michiganensis subsp. michiganensis)

Management of Seed Borne Fungal Diseases of Tomato: A Review

Bioseedling: a chain approach to the production of healthier seeds and seedlings of Lamb’s lettuceValerianella locusta

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