Monitoring of black currant varieties resistance to columnar rust

 
PIIS250020820001983-1-1
DOI
Publication type Article
Status Published
Authors
Affiliation: Russian Research Institute of Fruit Crop Breeding
Address: Russian Federation
Occupation: Grand PhD in Agricultural scienses
Affiliation: Russian Research Institute of Fruit Crop Breeding
Address: Russian Federation
Journal nameVestnik of The Russian agricultural science
Edition№5-2018
Pages37-40
Abstract

As a result of the studies, we found that the bulk of the studied black currant varieties are more or less susceptible to columnar rust. Both derivatives of the European, Siberian subspecies and dikusha currant and species obtained with usage Scandinavian subspecies are characterized by high sensibility to this disease. In the European zone the most widespread and harmful are the fungal diseases of black currant - septoriosis, anthracnose, powdery mildew. Substantial damage to this culture plantations is caused by epiphytoty which repeated every three to four years. In contrast to American mildew, columnar rust intensely affects plants during the mass ripening of berries, which makes it difficult to carry out protective measures. The most effective method for solving this problem was the remote hybridization which is participation of wild species with the necessary characteristics, but their involvement leads to deceleration of the selection process, as apart from the necessary characteristics they have those that reduce the value of hybrid progeny, and it takes several hybrid generations to achieve the necessary results. In the Institute on the base on disjoining of hybrid progeny was established the oligogenic nature of the inheritance of resistance to columnar rust in currant derivatives. It was revealed that it confers immunity to columnar rust in addition combines immunity with American powdery mildew. As a result, the Re gene was identified, as well as Kipian and Gamma varieties, which are actively used as immunity donors. Assessment of varieties for resistance to diseases and pests was carried out in the areas of primary variety testing according to the methodology for the study of fruit, berry and nut-bearing crops. 

Keywordsblack currant, resistance,column rust, breeding, immune cultivars
Received27.10.2018
Publication date29.10.2018
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