Articles
MORPHO-PHYSIOLOGICAL CHARACTERISTICS OF ANTHER-DERIVED ASPARAGUS CLONES FROM COMMERCIAL HYBRIDS AND VARIETIES.
Article number
415_61
Pages
419 – 422
Language
Abstract
Following in vitro anther culture of eight commercial hybrids and varieties of asparagus, male and female androgenetic clones were obtained with an anther response ranging from 0.5 to 9.7 according to genotype.
After the screening in a greenhouse for ploidy level and vigour of the plant, 34 male and 38 female doubled haploid (DH) clones were chosen and transplanted into a field infected with Fusarium. The third year after planting each clone was scored for percentage of dead plants, height to the first lateral branch, number of stalks and sum of stalk diameters per plant.
For some of these characters, a wide range of variation were observed among the DH clones.
The findings demonstrated that yield traits are controlled by several genes with additive action and appropriate crosses can be planned to maximize the heterosis expression in the F1 hybrids.
After the screening in a greenhouse for ploidy level and vigour of the plant, 34 male and 38 female doubled haploid (DH) clones were chosen and transplanted into a field infected with Fusarium. The third year after planting each clone was scored for percentage of dead plants, height to the first lateral branch, number of stalks and sum of stalk diameters per plant.
For some of these characters, a wide range of variation were observed among the DH clones.
The findings demonstrated that yield traits are controlled by several genes with additive action and appropriate crosses can be planned to maximize the heterosis expression in the F1 hybrids.
Research supported by Ministero Risorse Agricole, Alimentari e Forestali in the framework of the national project “Plant breeding for biotic and abiotic stress”.
Publication
Authors
A. Falavigna, E. Perri
Keywords
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