Selecting ornamental forms of common hazel in the Northwest Caucasus

T. A. Isushcheva, E. K. Pchikhachev
2020 Subtropical and ornamental horticulture  
the collection of Pelargonium (l'hérit. ex Ait.) genus that belongs to the family Geraniaceae Juss is cultivated in the botanical garden «the tree of Friendship». It has about 200 cultivars. Pelargonium grandiflorum hort hybrids make up 40 % of the total composition. breeding studies with pelargoniums have been conducted in the FRC SSC of RAS since 2000. they are aimed at creating adaptive, highly decorative, productive and long-blooming cultivars with different flowering periods for universal
more » ... se. the object of research was a hybrid fund of 24 crossing combinations. the work methods were used for intervarietal hybridization. Inheritance of the main flower decorative features within cultivars and cultivars groups was determined. It was found that seedlings of the studied combinations (60 %) inherited the maternal type of the colour. In most combinations, hybrid seedlings were new growths based on their main colour. the colour of the spot in the main offspring from different crossing combinations was 50-100 % different from the original forms. From 70 % to 100 % of hybrid seedlings of the female parent 'Jolenta' inherited its type and main colour. 'African belle' cultivar, regardless of whether it is a pollinator or a mother form, transmits its type and colour of the spot to most of the offspring.
doi:10.31360/2225-3068-2020-75-55-59 fatcat:eic75hxypvbp7hyaxyor6syuum