Seed treatment method for sowing and seedling raising of Dalbergia hupeana Hance

Abstract

The invention relates to a seed treatment method for sowing and seedling raising of Dalbergia hupeana Hance. The method mainly includes the steps of seed collecting, seed purifying, plant extract treatment, hormone treatment, ultra-drying treatment, storage, ultrasonic treatment and rewetting treatment. In the step of hormone treatment, seeds are soaked with gibberellin and auxin mixed liquor for 24 h; in the step of ultra-drying treatment, a silica gel drying method is adopted, the weight ratio of silica gel to the seeds is 5:1, used silica gel is replaced with fully-cooled dry silica gel every day, and the Dalbergia hupeana Hance seeds with the water content of 3.9-4% are obtained by controlling treatment time; in the step of storage, the seeds are sealed in a double-layer aluminum foil bag to be stored at the room temperature; in the step of ultrasonic treatment, the seeds at different grades are treated under different ultrasonic conditions; in the step of rewetting treatment, a step-by-step resetting method is adopted. By means of the method, the Dalbergia hupeana Hance seeds can show high vitality and resistance after being stored for a long term; compared with a conventional seed treatment method, the germination rate, germination potential, germination index and vitality index of the Dalbergia hupeana Hance seeds can be significantly increased.

Description

technical field [0001] The invention relates to the field of Dalbergia seedlings, in particular to a method for treating Dalbergia seedlings. Background technique [0002] Dalbergia (scientific name: Dalbergia hupeana Hance), alias: I don't know spring, Wangshui sandalwood, sandalwood, sandalwood, white sandalwood; Papilionaceae, Dalbergia hupeana arbor plant, is a high-quality tree species for garden applications; the wood structure is fine and dense , It is a material for making appliances and equipment with high-quality load-bearing and strong pulling force. The root bark can be used medicinally, and has the effects of clearing heat and detoxifying, stopping bleeding and reducing swelling. Widely distributed throughout China. [0003] Dalbergia Dalbergia blooms from March to April, and a large number of pods mature in October of that year. The spring sowing time of seeds is February to March, so Dalbergia seeds need to be stored for 4-5 months before sowing. After 4-5 m...

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Problems solved by technology

[0003] Dalbergia Dalbergia blooms from March to April, and a large number of pods mature in October of that year. The spring sowing time of seeds is February to March, so Dalbergia seeds need to be stored for 4-5 months before sowing. After 4-5 months of sand storage by conventional methods, The germination rate of the seeds is significantly reduced. The germination rate of the seeds before storage is about 70%, and the germination rate drops to 38% after storage, and the seed vigor index decreases; However, the management costs of establishing low-temperature storage and maintaining low temperature are very high, which is difficult for a single nursery business unit to achieve

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