Bud cutting raising method of Catalpa bungei seedlings

Abstract

The invention relates to a bud cutting raising method of Catalpa bungei seedlings, comprising the steps of treating raising substrate, to be specific, selecting moist breathable raising substrate foruse; treating scions, to be specific, after trees of Catalpa bungei bud in early spring, collecting new buds of Catalpa bungei as scions, and using a rooting promoter to promote rooting; performing cuttage, to be specific, subjecting the scions that are subjected to rooting promotion to cuttage, with bud gaps of the scions facing up; raising seedlings, to be specific, irrigating the inserted scions once with root-fixing water immediately, and regularly irrigating the scions to maintain moisture until the scions root and grow into Catalpa bungei seedlings; exercising the seedlings, to be specific, after the Catalpa bungei seedlings root, raising the ambient temperature gradually, cultivating in the open field, and transplanting after the Catalpa bungei seedlings grow stably. The bud cuttingraising method of Catalpa bungei seedlings provided herein is simple to perform, provides significantly shortened raising cycle of Catalpa bungei seedlings and provides increased survival rate of seedlings per mu; in addition, the bud cutting raising method of Catalpa bungei seedlings has no strict requirements on a seedling raising environment, allows seedling raising cost to be greatly reduced,and is significant to the reduction of seedling raising cost for Catalpa bungei and the improvement of breeding efficiency for Catalpa bungei.

Description

technical field [0001] The invention relates to the technical field of nursery stock breeding, in particular to a method for growing seedlings of catalpa by bud insertion. Background technique [0002] Catalpa, Bignoniaceae, Catalpa, as one of the precious and high-quality timber tree species in my country and one of the rare garden ornamental tree species, it has good material, wide use, and high economic value, ranking first among all trees. However, along with the development of China's ecological forestry and the needs of the market economy, it has become a problem to be solved urgently to propagate the improved seedlings of catalpa in large quantities. Due to the incompatibility of self-pollination, catalpa often blooms and does not set fruit; even if different clones are mixed together, they can bear fruit through insect pollination, but there are few seeds, the germination rate of seeds is very low, and seed reproduction is difficult. [0003] Catalpa is a tree speci...

AI Technical Summary

Problems solved by technology

Due to the incompatibility of self-pollination, catalpa often blooms and does not bear fruit; even if different clones are mixed together, they can bear fruit after pollination by insects, but there are few seeds, the germination rate of seeds is very low, and seed reproduction is difficult

[0003] Catalpa is a tree species that is difficult to root, and the survival rate of cutting propagation is low, and the existing related cutting technology is not easy to be popularized and applied in actual production due to high operation requirements, or the need for facility conditions, or labor-intensive and time-consuming costs.

The traditional method of catalpa tree propagation is mostly grafting, but the propagation cycle of this method is long and the reproduction efficiency is low

In addition, although root burial propagation is relatively easy, the scale of propagation is objectively restricted due to the relatively small amount of propagation materials.

Although tissue culture reproduces quickly, it requires a large investment in equipment conditions, high technical requirements, and high production costs.

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