Breeding of A New Rose Cultivar ‘Red Ball’ with Light Red Color Flower and Resistance to Powdery Mildew

Abstract

A new standard rose cultivar ‘Red Ball’ was bred from the cross between light red standard cultivar ‘Red Sandra’ and red standard cultivar ‘Tiamo’ at the Jeollanamdo Agricultural Research and Extention Services (JARES). The cross was made in 2004 and seedlings were produced. After the evaluation of specific characters from 2007 to 2009, it was finally selected and named as ‘Red Ball’ that has standard flower type with light red color (RHS Color Chart Red Group 46A). The major characteristics of this cultivar were as follows : this cultivar produced 128.8 stems/m 2 /year, and it showed 68.4cm in length of cut flower, 9.3cm in flower diameter, 49.8 in petal number, and 9.9 days in vase life. This cultivar can be propagated by both cutting and grafting. The consumer’s preference of this cultivar is relatively higher than that of control cultivar, ‘Tiamo’.