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SM ISO690:2012 GAVRILITSA, Lidia. Interspecific competition of Trichogramma sp. at its mass rearing. In: Oltenia - studii si comunicari stiintele naturii, 2016, nr. 1(32), pp. 71-76. ISSN 1454-6914. |
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Oltenia - studii si comunicari stiintele naturii | ||||||
Numărul 1(32) / 2016 / ISSN 1454-6914 | ||||||
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CZU: 595.792:591.5:59.08 | ||||||
Pag. 71-76 | ||||||
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As a result of the laboratory experiments, it has been established that along the 4 generations in mixed populations of T. evanescens Westw. and T. pintoi Voeg., gradual substitution of T. evanescens by T. pintoi occurs. The mechanism of interspecific competition on grain moth eggs was established. In the field of cereal, technical and vegetable crops, T. evanescens is dominant species (up to 95-99%). T. pintoi represents a laboratory population, the preferred host of which is Siotroga cerealella Ol. In the presence of the two species of Trichogramma in the biotope, their quantitative ratio depends on the specific climatic conditions and resource of eggs of the preferred host Biological indices for T. pintoi are higher than those of T. evanescens. Therefore, in the laboratory conditions we substitute T. evanescens by T. pintoi, but in the field it is the opposite. |
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Cuvinte-cheie biological indices, prolificacy, Pests, Trichogramma, Competition, biological efficacy, indicii biologici, prolificitatea, gazdă, Trichogramma, concurenţă, eficacitatea biologică |
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<?xml version='1.0' encoding='utf-8'?> <resource xmlns:xsi='http://www.w3.org/2001/XMLSchema-instance' xmlns='http://datacite.org/schema/kernel-3' xsi:schemaLocation='http://datacite.org/schema/kernel-3 http://schema.datacite.org/meta/kernel-3/metadata.xsd'> <creators> <creator> <creatorName>Gavriliţă, L.T.</creatorName> <affiliation>Institutul de Genetică, Fiziologie şi Protecţie a Plantelor al AŞM, Moldova, Republica</affiliation> </creator> </creators> <titles> <title xml:lang='en'>Interspecific competition of Trichogramma sp. at its mass rearing</title> </titles> <publisher>Instrumentul Bibliometric National</publisher> <publicationYear>2016</publicationYear> <relatedIdentifier relatedIdentifierType='ISSN' relationType='IsPartOf'>1454-6914</relatedIdentifier> <subjects> <subject>biological indices</subject> <subject>prolificacy</subject> <subject>Pests</subject> <subject>Trichogramma</subject> <subject>Competition</subject> <subject>biological efficacy</subject> <subject>indicii biologici</subject> <subject>prolificitatea</subject> <subject>gazdă</subject> <subject>Trichogramma</subject> <subject>concurenţă</subject> <subject>eficacitatea biologică</subject> <subject schemeURI='http://udcdata.info/' subjectScheme='UDC'>595.792:591.5:59.08</subject> </subjects> <dates> <date dateType='Issued'>2016-07-01</date> </dates> <resourceType resourceTypeGeneral='Text'>Journal article</resourceType> <descriptions> <description xml:lang='en' descriptionType='Abstract'><p>As a result of the laboratory experiments, it has been established that along the 4 generations in mixed populations of T. evanescens Westw. and T. pintoi Voeg., gradual substitution of T. evanescens by T. pintoi occurs. The mechanism of interspecific competition on grain moth eggs was established. In the field of cereal, technical and vegetable crops, T. evanescens is dominant species (up to 95-99%). T. pintoi represents a laboratory population, the preferred host of which is Siotroga cerealella Ol. In the presence of the two species of Trichogramma in the biotope, their quantitative ratio depends on the specific climatic conditions and resource of eggs of the preferred host Biological indices for T. pintoi are higher than those of T. evanescens. Therefore, in the laboratory conditions we substitute T. evanescens by T. pintoi, but in the field it is the opposite.</p></description> <description xml:lang='ro' descriptionType='Abstract'><p>În urma experimentelor de laborator s-a stabilit că, pe parcursul a 4 generaţii, în populaţiile mixte de T. evanescens Westw. şi T. pintoi Voeg., are loc substituirea treptată a T. evanescens de către T. pintoi. Totodată, s-a determinat mecanismul concurenţei interspecifice pe ouă de molia cerealelor (Sitotroga cerealella Ol.). În câmp T. evanescens reprezintă o specie dominantă în agrocenozele culturilor cerealiere, tehnice, legumicole şi leguminoase (până la 95-99%), iar T. pintoi reprezintă o populaţie de laborator, pentru care S. cerealella este o gazdă preferată. În prezenţa a două specii de Trichogramma în biotop, raportul lor cantitativ depinde de condiţiile concrete climatice şi resursa de ouă de gazdă preferată. Pentru T. pintoi indicii biologici sunt mai mari decât la T. evanescens. Din această cauză, are loc substituirea T. evanescens de către T. pintoi în condiţii de laborator, iar în câmp – invers.</p></description> </descriptions> <formats> <format>application/pdf</format> </formats> </resource>