A Tissue Culture Rapid Propagation Method of Eucalyptus grandis dh32-26

Abstract

The invention discloses a tissue culture and rapid propagation method of Eucalyptus urophylla DH32-26 variety, which is realized through the steps of explant establishment, explant disinfection, primary culture, subculture, rooting culture, seedling hardening and transplanting. , A special medium composition was selected for primary culture, subculture and rooting culture. Reasonable seedling hardening measures made Eucalyptus macrophylla grow fast after transplanting, with a high survival rate, and achieved the purpose of high reproduction coefficient and good reproduction effect. Simultaneously, the production cost of the method of the invention is low, and the obtained tissue culture seedlings have consistent genetic traits, which is an effective way for tissue culture and rapid propagation of eucalyptus, and has a wide application range.

Description

technical field

[0001] The invention relates to the technical field of eucalyptus cultivation, in particular to a method for tissue culture and rapid propagation of Eucalyptus macrocephalus DH32-26 variety. Background technique

[0002] Eucalyptus grandis DH32-26 variety (E .urophylla × E . Grandis ）， It is Guangxi Dongmen Forest Farm, with Indonesian provenance Eucalyptus urophylla U16 (E ucalyptus urophylla ) as the female parent, and the Australian provenance Eucalyptus grandis G46 (E ucalyptus grandis ) is an excellent eucalyptus species obtained through vegetative propagation as a male parent hybrid dominant species. This species has fast growth and high yield, short rotation period (industrial fiber material); Straight, resistant to barrenness, and suitable for planting in large areas. Years of popularization tests have proved that the average tree height of the 5-year-old Eucalyptus grandis DH32-26 variety is 24.72m, the average diameter at breast height is 1...

Images