The Hybrid Breeding Method of Osmanthus fragrans for Long Flowering Period

Abstract

The invention provides a sweet-scented osmanthus long-bloom hybrid breeding method which comprises the following steps: 1) subjecting the soil to preliminary improvement, carrying out drainage and constructing a supply system, applying an soil improvement fertilizer and spraying a microbial agent; 2) carrying out hybridization combination selection and cultivation, and hybridization of Osmanthusfragrangs CV 'zhusha' and the Osmanthus fragrans cv.'rixianggui'. The flowering time of the generated new-generation osmanthus tree is earlier than that of normal Osmanthus fragrangs CV 'zhusha', theflowering phase is prolonged, the fragrance is strong, and the stress resistance is high.

Description

technical field [0001] The invention relates to a method for hybridization and breeding of osmanthus fragrans for a long flowering period. Background technique [0002] Osmanthus fragrans is a long-sun plant, and it likes to grow in places with sufficient sunlight and thick, well-drained soil. The soil should be slightly acidic, with a pH of 5.5-6.5. Avoid alkaline soil, afraid of stagnant water and soot, among which cinnabar osmanthus belongs to the Dangui variety group, tree, 5 meters high, 3 meters in width, spherical crown, medium density, light gray bark, relatively smooth, sparse lenticels, The flowering period is August, ahead of the autumn osmanthus. The flowers are red, the petals are 4-6mm, and each bud has 6-8 flowers. The flower volume is large, the flower smell is strong, the flowering period is about 15 days, and the tolerance to shade is poor. Dense and rich, it is welcomed by people, and the improved cinnabar osmanthus has a great market prospect; Rixiang os...

AI Technical Summary

Problems solved by technology

Avoid alkaline soil, afraid of stagnant water and soot, among which cinnabar osmanthus belongs to the Dangui variety group, tree, 5 meters high, 3 meters in width, spherical crown, medium density, light gray bark, relatively smooth, sparse lenticels, The flowering period is August, ahead of the autumn osmanthus. The flowers are red, the petals are 4-6mm, and each bud has 6-8 flowers. The flower volume is large, the flower smell is strong, the flowering period is about 15 days, and the tolerance to shade is poor. Dense and rich, it is welcomed by people, and the improved cinnabar osmanthus has a great market prospect; Rixiang osmanthus is a variant of osmanthus (Osmanthus fragrans), named for its continuous flowering and strong aroma, and it blooms continuously from September to April of the next year The period is more than 8 months, and there are still 1-2 blooms per month from May to August. Basically, it continues to bloom all year round. It has strong resistance to stress, but the flower color is relatively light. The new hybrid combination of Rixianggui and Zhushagui is not available on the market. Appear