CN-121986662-A - Cutting propagation method of resource fir

CN121986662ACN 121986662 ACN121986662 ACN 121986662ACN-121986662-A

Abstract

The invention relates to the field of seedling propagation, in particular to a cutting propagation method of resource fir. The method comprises the steps of (1) building a seedling raising shed, (2) collecting cutting slips, cutting the cutting slips into cutting slips after disinfection, soaking the cutting slips in a rooting agent, cutting the cutting slips after soaking the rooting agent into a seedling raising bed in the middle of 9 months to the middle of 10 months, watering after cutting, stabilizing the cutting slips, disinfecting the seedling raising shed and the cutting slips after cutting into the seedling raising bed again, covering a plastic film on the shed to seal the seedling raising bed, and (3) managing the cutting period. The invention firstly applies the cuttage method to artificially reproduce the resource fir, and through repeated cuttage propagation test, the survival plants can normally grow through observation for 1-2 years after cuttage.

Inventors

ZHANG ZHANPING
YANG LIQIONG
TANG LONGPING
ZHANG ZHUN
DENG YINWEI
TANG SHAOQING
LIU QINGYUN
YANG YOUGUO
LIN JIANMEI
XIAO QIANRU

Assignees

东安县林业局
东安舜皇山国家森林公园管理局(东安舜皇山国家级自然保护区管理局、东安县大庙口国有林场)
广西师范大学

Dates

Publication Date: 20260508
Application Date: 20260401

Claims (10)

1.A cutting propagation method of resource fir is characterized by comprising the following steps: (1) Building a seedling raising shed, namely building a seedling raising bed by taking yellow loam formed by granite development as a seedling raising bed substrate, sequentially building a small shed and an arch shed above the seedling raising bed, and paving a sunshade net on the arch shed to form the seedling raising shed; (2) Cutting, namely collecting cutting slips, cutting the cutting slips into cutting slips after disinfection, soaking the cutting slips in a rooting agent, cutting the cutting slips after soaking the rooting agent into a seedling raising bed in the middle of 9 to 10 months, watering after cutting, stabilizing the cutting slips, re-disinfecting the seedling raising shed and the cutting slips after cutting into the seedling raising bed, and covering a plastic film on the shed to seal the seedling raising bed; (3) And managing the cutting period, namely monitoring the moisture, the temperature, the humidity and the illumination in the seedling raising shed, and meanwhile, carrying out regular disinfection and sterilization on the seedling raising shed to root the cuttings, and carrying out fertilization management on the cuttings after rooting.
2. The cuttage propagation method of resource fir according to claim 1, wherein the particle size of yellow loam is less than 0.4mm, and the pH is 5.8-6.2; the specification of the seedling raising bed is 1.2m multiplied by 6.0m, and the thickness of a seedling bed substrate on the seedling raising bed is 25 cm-35 cm; The specification of the seedling raising shed is 4.0mX6.0mX2.2m.
3. The cutting propagation method of resource fir according to claim 1, characterized in that the cutting is branches of resource fir for more than 1 year; The length of the cutting is 8.0 cm-15 cm, leaves in the length of the cutting, which is 3 cm-4 cm away from the cutting end, are removed, and the cutting end of the cutting is cut into a smooth inclined surface with an angle of 30-60 degrees.
4. The cutting propagation method of resource fir according to claim 1, characterized in that, The rooting agent comprises at least one of naphthalene acetic acid, indole acetic acid and indole butyric acid.
5. The cuttage propagation method of resource fir according to claim 4, wherein the rooting agent comprises naphthalene acetic acid and indoleacetic acid, wherein the mass content of the naphthalene acetic acid in the rooting agent is 20%, and the mass content of the indoleacetic acid in the rooting agent is 30%; the mass concentration of the rooting agent in the rooting agent solution is 0.1mg/mL, and the time for soaking the cuttings in the rooting agent is 1.5-3 hours.
6. The cutting propagation method of resource fir according to claim 1, wherein parameters of cutting the cuttings soaked with rooting agent to the seedling bed are that plant row spacing is 6.0cm multiplied by 10.0cm, and cutting depth is 2.5-3.0 cm.
7. The cutting propagation method of resource fir according to claim 1, characterized in that the disinfectant used for cutting disinfection is at least one of carbendazim, metalaxyl-hymexazol and pyraclostrobin; And the disinfectant used for re-disinfecting the seedling raising shed and the cuttings cut on the seedling raising bed is at least one of carbendazim, metalaxyl-hymexazol and pyraclostrobin.
8. The cuttage propagation method of resource fir according to claim 1, wherein in the step (3), the air humidity in the seedling raising greenhouse is 80% -90%, the seedling raising bed humidity is 60% -80%, and the daily shading degree is controlled at 85%.
9. The cuttage propagation method of resource fir according to claim 1, wherein the disinfectant adopted in the seedling raising shed for periodic disinfection in the step (3) is at least one of carbendazim, metalaxyl-hymexazol and pyraclostrobin; The frequency of the periodical disinfection and sterilization of the seedling raising shed in the step (3) is that the disinfection and sterilization are performed every 10-20 days when the temperature is higher than 10 ℃, and every 25-35 days when the temperature is lower than 10 ℃.
10. The cutting propagation method of resource fir according to claim 1, characterized in that, And (3) performing fertilization management on the cuttings after rooting in the step (3) to spray or spray foliar fertilizer once every 15-25 days, wherein the foliar fertilizer is 0.5% potassium sulfate compound fertilizer liquid.

Description

Cutting propagation method of resource fir Technical Field The invention relates to the field of seedling propagation, in particular to a cutting propagation method of resource fir. Background The resource fir (Abies ziyuanensis L.K. Fu & S.L.Mo) is fir tree species of genus fir of family Pinaceae, and is a special species for China. Evergreen arbor, bark is off-white and flaky, and cracks. The front end of the blade is provided with a notch, and the resin passage is raw. The cones stand upright, are oval and cylindrical, and are dark green and brown when ripe. The method has the advantages of long setting period, low setting rate, small number of cones, poor seed quality, low germination rate, poor natural reproduction capability of the population, and serious decay of the natural population, wherein external factors comprise climate change in geologic age, global climate change, human interference and community environmental influence, and the resource fir is difficult to update naturally. For many years, experts in scientific research institutions and management institutions seek effective ways for artificial propagation of resource fir, but the method is also limited to artificial seed propagation, and research results of cutting propagation are not yet seen. In view of the above, the invention provides a cutting propagation method of resource fir. Disclosure of Invention The invention aims to provide a cutting propagation method of resource fir. The invention provides a new method for artificial propagation of resource fir through carrying out cuttage propagation test of the resource fir in a Hunan Dongan Shunhuang mountain country family-level natural protection area, which has breakthrough success and great significance for protecting and recovering the resource fir population. The technical scheme for solving the technical problems is as follows: In a first aspect, a cutting propagation method of resource fir includes the following steps: (1) Building a seedling raising shed, namely building a seedling raising bed by taking yellow loam formed by granite development as a seedling raising bed substrate, sequentially building a small shed and an arch shed above the seedling raising bed, and paving a sunshade net on the arch shed to form the seedling raising shed; (2) Cutting, namely collecting cutting slips, cutting the cutting slips into cutting slips after disinfection, soaking the cutting slips in a rooting agent, cutting the cutting slips after soaking the rooting agent into a seedling raising bed in the middle of 9 to 10 months, watering after cutting, stabilizing the cutting slips, re-disinfecting the seedling raising shed and the cutting slips after cutting into the seedling raising bed, and covering a plastic film on the shed to seal the seedling raising bed; (3) And managing the cutting period, namely monitoring the moisture, the temperature, the humidity and the illumination in the seedling raising shed, and meanwhile, carrying out regular disinfection and sterilization on the seedling raising shed to root the cuttings, and carrying out fertilization management on the cuttings after rooting. On the basis of the technical scheme, the invention can be improved as follows. Further, the particle size of the yellow loam is smaller than 0.4 mm,pH 5.8~6.2; The specification of the seedling raising bed is 1.2m multiplied by 6.0m, and the thickness of a seedling bed substrate on the seedling raising bed is 25 cm-35 cm, and drain ditches with the depth of 20-30 cm are formed around the seedling raising bed; The specification of the seedling raising shed is 4.0mX6.0mX2.2m. Further, the cutting is the branch of the fir which is a raw resource for more than 1 year; The length of the cutting is 8.0 cm-15 cm, leaves in the length of the cutting, which is 3 cm-4 cm away from the cutting end, are removed, and the cutting end of the cutting is cut into a smooth inclined surface with an angle of 30-60 degrees. Further, the rooting agent comprises at least one of naphthalene acetic acid, indole acetic acid and indole butyric acid. Further, the rooting agent comprises naphthalene acetic acid and indoleacetic acid, wherein the mass content of the naphthalene acetic acid in the rooting agent is 20%, and the mass content of the indoleacetic acid in the rooting agent is 30%; the mass concentration of the rooting agent in the rooting agent solution is 0.1mg/mL, and the time for soaking the cuttings in the rooting agent is 1.5-3 hours. Further, parameters of cutting the cuttings after soaking the rooting agent into the seedling raising bed are that the plant row spacing is 6.0cm multiplied by 10.0cm, and the cutting depth is 2.5-3.0 cm. Further, the disinfectant adopted for the cutting disinfection is at least one of carbendazim, metalaxyl-hymexazol and pyraclostrobin; And the disinfectant used for re-disinfecting the seedling raising shed and the cuttings cut on the seedling raising bed is at least one of carbendazim,