Variation and heritability of economically important traits in black currant (Ribes nigrum L.) evaluated in a diallel cross design

• Published in: Euphytica Vol. 91; no. 2; pp. 219 - 224
• Main Authors: Zurawicz, E. (Research Inst. of Pomology and Floriculture, Skierniewice (Poland). Dept. of Fruit Breeding), Madry, W, Pluta, S
• Format: Journal Article
• Language: English
• Published: Dordrecht Springer 1996
• Subjects: AGRONOMIC CHARACTERS; Agronomy. Soil science and plant productions; Biological and medical sciences; CAIDA DE LAS HOJAS; CARACTERE AGRONOMIQUE; CARACTERISTICAS AGRONOMICAS; CHUTE DES FEUILLES; CROISEMENT DIALLELE; CRONARTIUM; Cronartium ribicola; CRUZAMIENTO DIALELO; DIALLEL CROSSING; DREPANOPEZIZA; Fundamental and applied biological sciences. Psychology; Generalities. Genetics. Plant material; Genetic resources, diversity; GENETIC VARIATION; Genetics and breeding of economic plants; HEREDABILIDAD; HERITABILITE; HERITABILITY; LEAF FALL; Plant material; RIBES NIGRUM; SPHAEROTHECA; VARIACION GENETICA; VARIATION GENETIQUE; Poland; Europe; Genetic inheritance; Genetic variability; Horticulture; Plant pathogen; Small fruits; Ribes nigrum; Basidiomycetes; Genetic parameter; Fungi; Cronartium ribicola; Dicotyledones; Angiospermae; Ascomycetes; Saxifragaceae; Plant reproductive apparatus; Thallophyta; Agronomical character; Fruit; Quantitative genetics; Combining ability; Sphaerotheca mors-uvae; Fruit crop; Genetic improvement; Vegetative apparatus; Phenotype variation; Spermatophyta; Heritability
• ISSN: 0014-2336; 1573-5060
• DOI: 10.1007/BF00021073

The inheritance of commercially important characters in black currant (Ribes nigrum L.) was investigated using a complete 5 x 5 varietal diallel cross. Estimates of the genetic components of variance and broad and narrow-sense heritabilities revealed that additive genetic effects were greater than nonadditive genetic effects for resistance to powdery mildew (Sphaerotheca mors-uvae Berk.), white pine blister rust (Cronartium ribicola Fisher) and leaf spot (Drepanopeziza ribis Kleb.) as well as for bush defoliation and length of strigs. Apart from resistance to leaf spot, narrow-sense heritabilities of these characters exceeded 0.5. Nonadditive genetic effects were greater than additive effects for plant habit, plant vigor, bush size, length of one-year-old shoots, uniformity of berry ripening and fruit yield per bush. Narrow-sense heritabilities of these characters were rather low (0.05-0.42).