Improving quality control procedures for seed-borne pathogens by testing sub-samples of seeds

Ridout, M.S.; Roberts, S.J.

Improving quality control procedures for seed-borne pathogens by testing sub-samples of seeds

1997

Ridout, M.S. (Horticulture Research International, Kent (United Kingdom)) | Roberts, S.J.

Quality control procedures for seed-borne pathogens may involve testing a single sample of seeds for the presence of the pathogen, but the probability of rejecting seed-lots with acceptable infection levels can be high. If multiple sub-samples are tested and the seed-lot is rejected when any of the sub-samples gives a positive result, then the probability of inadvertantly rejecting acceptable seed-lots is unchanged. However, this probability can be reduced, without reducing the probability of rejecting unacceptable seed-lots, by requiring more than one of the sub-samples to give a positive result before rejecting the seed-lot. We present the underlying statistical theory behind this result and discuss the implications for seed testing procedures

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Mots clés AGROVOC

control de calidad enfermedades de las plantas ensayo de semillas essai de semences maladie des plantes muestreo organisme transmissible par semence organismos transmitidos por semilla pathogens plant diseases sampling seed seed testing semence semillas statistical methods

Informations bibliographiques

Publié dans

Seed Science and Technology (Switzerland)

Volume 25 Numéro 2 ISSN 0251-0952

Editeur

International Seed Testing Association

Pagination

p. 195-202

D'autres materias

Echantillonnage; Methode statistique; Seedborne organisms; Quality controls; Metodos estadisticos; Controle de qualite; Agent pathogene; Organismos patogenos

Langue

anglais

Note

Summary (En)

2 tables, 2 graphs, 7 ref.

Type

Summary; Non-Conventional

Source

Proceedings of the International Seed Testing Association, International Seed Testing Association's Secretariat, Reckenholz (Switzerland).- Reckenholz (Switzerland): International Seed Testing Association, 1997

Sur AGRIS depuis: 1998-08-15

Format: AGRIS AP

Fournisseur de données

Cette notice bibliographique a été fournie par Agroscope Reckenholz-Tänikon Research Station

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