Abstract:

【Objective】This study aims to enrich the germplasm resources of Bougainvillea in China and to promote the cultivar diversification of garden applications.【Method】In 2016,we collected and sowed the seeds of natural hybrid of ‘Zhongmin 1’. Then all mutant seedlings were used as the cutting propagation for selective breeding.【Result】Through analyzing the characters of seedlings, we found a new cultivar with lavender bract. This new cultivar can be distinguished from its similar variety at phenotypic characters and molecular levels. The natural flowering period of the new cultivar was from September to April of the next year when it was planted in Fujian Province, and flowers were arranged in large bunches at the middle and ends of the branches. The leaves are broadly ovate with wide wedge-shaped base. Thus, we concluded that the new cultivar has stable characters after four years of investigation, and named it ‘Zhongmin 2’. 【Conclusion】‘Zhongmin 2’ is a new cultivar with pastel color、long flowering period, large amount of flowers and high ornamental value.

Key words: Bougainvillea spp., new cultivar, hybridization, seed