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A TRAIT COLLECTION OF FLAX BY RESISTANCE TO FUSARIUM WILT AND ANTHRACNOSE – A SOURCE OF STARTING MATERIAL FOR BREEDING

A TRAIT COLLECTION OF FLAX BY RESISTANCE TO FUSARIUM WILT AND ANTHRACNOSE – A SOURCE OF STARTING MATERIAL FOR BREEDING

Institution

Institute of Bast Crops

Section

SOURCES AND DONORS

Abstract

Goal. To search for and introduce accessions with subsequent investigation of them for a set of valuable economic features and to create a working trait collection of common flax based on immunological monitoring of resistance of collection accessions under conditions of complex infections.

Materials and Methods. The study was conducted in the infectious-provocative nursery in the field of the Institute of Bast Crops in 1983-2012 in compliance with the guidelines "Methodic Instructions for Phytopathological Assessment of Resistance of Common Flax Breeding Material to Fusarium Wilt" and "Methodological Instructions for Phytopathological Assessment of Resistance of Common Flax to Diseases".

Results and Discussion. The studies on resistance of the collection material to flax diseases were started in the Institute of Bast Crops in 1983. Annually, more than 400 accessions are tested for this trait on infectious -provocative background. Based on the results of 1983-2012 studies, a working trait collection of flax, which includes 218 accessions, was formed by resistance to Fusarium wilt and anthracnose. All the accessions are entered in the passport database, and 45 accessions are included in the parentage database. The flax accessions investigated originate are from 27 countries. The largest numbers of accessions are from Russia - 60, Ukraine - 38, Belarus - 24, China - 13, Netherlands and France – 11 each, Czech Republic - 10. Most of the collection accessions are highly resistant to Fusarium wilt. They are accessions from Russia - 41, Ukraine - 15, Belarus - 13, Czechia - 7, France - 7 and Netherlands - 7. Accessions with resistance to anthracnose originate from 15 countries. Of the collection material under investigation, accessions with group resistance to Fusarium wilt and anthracnose were identified: LKS-7 from Ukraine, Luna from Poland, Simphonia from France, G 1074, Tomskiy Mesnyy, Rybinskiy Mestnyy (UF0400836) from Russia, Ottava 7708 (UF0400700) from Canada.

Conclusions. The research on resistance of the collection material to Fusarium wilt and anthracnose in the complex infectious-provocative nursery identified varieties-references with various levels of expression of traits, which enabled forming and registering the working trait collection of flax by resistance to Fusarium wilt and anthracnose. Seven accessions with group resistance to Fusarium wilt and anthracnose were selected.

Keywords

common flax, resistance to diseases, Fusarium wilt, anthracnose, varieties-references, trait collection