Toddalia asiatica twig cutting seedling raising method

Abstract

The invention provides an asiatic toddalia root twig cutting seedling raising method, and relates to the technical field of asiatic toddalia root artificial planting. The Asiatic toddalia root twig cutting seedling raising method mainly comprises the steps of selecting cutting branches, preparing a soaking solution from a 0.05% boric acid solution, IBA and DL-malic acid, treating the upper ends of the cutting branches with an ice-water bath soaking solution, treating the lower ends of the cutting branches with a normal-temperature soaking solution, soaking the cutting branches with quicklime mixed cooked rice milk and the like. According to the method, the defects in the prior art are overcome, the branch cutting rooting rate is effectively increased through treatment of the cutting branches, meanwhile, growth of lateral roots and fibrous roots is promoted, and the quality of Asiatic toddalia root cutting seedlings is improved.

Description

Technical Field

[0001] The invention relates to the technical field of artificial planting of ophiopogon sphaerocephala, and in particular to a method for raising seedlings of ophiopogon sphaerocephala softwood cuttings. Background Art

[0002] Dragon Palm Blood is mainly distributed in the southern region of my country. Dragon Palm Blood has significant effects in promoting blood circulation and dispersing blood stasis, removing wind and dampness, reducing swelling and relieving pain in the field of medicine. It has significant therapeutic effects on symptoms such as rheumatism, bone pain and trauma. Therefore, its price in the market is also quite considerable. Planting Dragon Palm Blood can not only bring considerable economic benefits to growers, but also promote the development of the local medicinal materials industry.

[0003] The existing methods of planting dragon palm blood are mainly sowing and cutting planting; sowing planting requires collecting mature seeds and sowing them in a suitable season, but the overall growth period is long and the planting cost is also high. Cutting planting can choose healthy branches for cuttings, which can generally significantly shorten the growth period of dragon palm blood seedlings, so at this stage, artificial planting of dragon palm blood often adopts cutting planting.

[0004] In the conventional artificial cuttings of Feilong Palm Blood, the use of growth hormones to treat the cuttings can significantly increase the rooting rate of the branches. After the Feilong Palm Blood artificial cuttings are established (usually about half a year to eight months after cuttings), they need to be transplanted. During the transplanting process, the growth of the lateral roots and fibrous roots of the seedlings significantly affects the subsequent transplanting survival and growth. Lateral roots are mainly roots that grow from the taproot. They usually form a certain angle with the taproot and grow horizontally or obliquely. They are generally thicker. Plants with more lateral roots have higher stability, while fibrous roots are small roots that grow on the lateral roots. Plants with more developed lateral roots and fibrous roots have better transplantation. The survival rate of transplanting is high, especially the growth of fibrous roots. The fibrous roots have strong regeneration ability and can recover quickly after transplanting and form a new root system, which helps the plants better adapt to the new soil environment and improve their survival rate. However, at present, the branches directly treated with growth hormones often have fewer fibrous roots after cuttings. Although such cuttings can also grow normally, it is easy to reduce the survival rate of transplanting for subsequent Feilong Palm Blood transplanting. Therefore, the main research direction of Feilong Palm Blood artificial cuttings treatment at this stage is to promote the rooting survival rate of cuttings while improving the uniform growth of lateral roots and fibrous roots to ensure the quality of Feilong Palm Blood artificial cuttings seedlings. Summary of the invention

[0005] In view of the shortcomings of the existing technology, the present invention provides a method for raising seedlings by cuttings of softwood branches of Phellodendron chinense. By treating the cutting branches, the rooting rate of the branch cuttings is effectively improved, while the growth of lateral roots and fibrous roots is promoted, thereby improving the quality of the Phellodendron chinense blood cutting seedlings.

[0006] To achieve the above objectives, the present invention is implemented through the following technical solutions: A method for raising seedlings by cuttings of softwood branches of Psoralea corylifolia, the method comprising the following steps: S1. Use the pruning of young branches of the dragon palm as cuttings; S2. Prepare the soaking solution according to the following formula: 0.05% boric acid solution + IBA 800-1000 mg / L + DL-malic acid 80-100 mg / L; S3, soaking the upper end of the cutting branch upside down in the soaking solution in an ice water bath for 20-30 minutes, and then soaking the lower end of the cutting branch in the soaking solution at room temperature for 20-30 minutes to obtain pretreated cuttings; S4, soaking the pretreated cuttings in quicklime mixed with cooked rice slurry at room temperature and then rinsing with clean water; S5. Manage the cleaned cuttings for cuttings.

[0007] Preferably, the young branches of the dragon palm blood in step S1 are lignified or semi-lignified branches of the dragon palm blood seedlings of more than two years old, and the young branches are pruned in a manner of controlling the length to 15-20 cm and retaining 3-4 buds.

[0008] Preferably, in step S3, the upper end is immersed at 1 / 3-1 / 2 of the upper end, and the lower end is immersed at 1 / 3-1 / 2 of the lower end.

[0009] Preferably, in step S4, the concentration of quicklime mixed with cooked rice slurry for soaking at room temperature is 10%-20%, and the content of rice in the cooked rice slurry is 10%-20%.

[0010] Preferably, the soaking treatment time in step S4 is 5-10 minutes, and the water rinsing time is 10-15 seconds.

[0011] Preferably, the substrate for cuttings in step S5 has the following material composition in parts by mass: 2-3 parts of river sand, 2-3 parts of perlite, and 4-6 parts of humus soil.

[0012] Preferably, the cutting method in step S4 is greenhouse cutting, the temperature is controlled at 22-28°C, and the relative humidity is controlled at 80%-90%.

[0013] Preferably, in step S4, water is promptly poured after cutting, and a carbendazim solution is sprayed once 3-5 days after cutting.

[0014] Preferably, the carbendazim solution is a solution of 95% carbendazim diluted 1200-1500 times.

[0015] The present invention provides a method for raising seedlings by cuttings of softwood branches of Pteris fasciata, which has the advantages of: The invention adopts boric acid, IBA and DL-malic acid as components of the soaking liquid, and soaks the upper end and the lower end of the spatholobiaceae softwood cuttings at different temperatures respectively, so as to effectively promote the rooting and survival of the cuttings and further promote the occurrence and growth of lateral roots and fibrous roots, improve the quality of the cuttings while ensuring the growth of the cuttings, and provide a good foundation for the subsequent survival of the cuttings after transplantation. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 This is a schematic diagram of the rooting of the cutting seedlings of the experimental group 1-3 of the present invention after 2 months of cutting; Figure 2 This is a schematic diagram of the rooting of the cutting seedlings of the experimental group 1-3 of the present invention after 3 months of cutting; Figure 3 This is a schematic diagram of the rooting of the cutting seedlings of the experimental group 1-3 of the present invention after 4 months of cutting; Figure 4 This is a schematic diagram of the rooting situation of the cutting seedlings of the experimental group 1-3 of the present invention after 5 months of cutting; Figure 5 This is a schematic diagram of the rooting of the cutting seedlings of the experimental group 1-3 of the present invention after 6 months of cutting; Figure 6 This is a schematic diagram of root scanning of the cutting seedlings of experimental group 2 of the present invention at 6 months after cutting; Figure 7 This is a schematic diagram of root scanning of the cutting seedlings of experimental group 3 of the present invention at 6 months after cutting. DETAILED DESCRIPTION

[0017] In order to make the purpose, technical solution and advantages of the embodiments of the present invention clearer, the technical solution in the embodiments of the present invention is clearly and completely described below in combination with the embodiments of the present invention. Obviously, the described embodiments are part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention. Embodiment 1:

[0018] Cultivation of seedlings by cuttings of softwood branches of the dragon palm: (1) Select the current-year lignified or semi-lignified branches of two-year-old or older saplings of the plant, cut the branches to a length of 15-20 cm, and retain 3-4 buds as cuttings; (2) Insert the upper 1 / 3-1 / 2 of the cutting branch in an upside-down position into the soaking solution and soak it in an ice water bath for 25 minutes. Then insert the lower 1 / 3-1 / 2 of the cutting branch upright into the soaking solution and soak it at room temperature for 25 minutes to obtain the pretreated cuttings. (3) Soak the pretreated cuttings directly in disinfectant for 8 minutes and then rinse with clean water for 15 seconds (the disinfectant is prepared by adding quicklime to cooked rice slurry, and the quicklime concentration is controlled to be 15%; cooked rice slurry is prepared by mixing rice and water in a mass ratio of 15:85, grinding them, and then boiling and aging them); (4) Prepare the matrix according to the following mass proportions: 3 parts river sand, 2 parts perlite, and 5 parts humus soil, and sterilize the matrix with steam at 80°C for 2 hours for later use; (5) Insert the lower end of the cleaned cuttings into the disinfected substrate, then water them thoroughly and culture them at 22-28°C. Control the humidity in the greenhouse at 80%-90%, and spray 95% carbendazim 1400 times diluted solution once 4 days after cutting.

[0019] Referring to the above method, different experimental groups were set up and different soaking solutions were selected. The specific soaking solution selections are shown in the following table: Table 1 Embodiment 2:

[0020] Referring to the method for raising seedlings of softwood cuttings of Phyllanthus truncatus in Example 1 above, 0.05% boric acid solution + 800 mg / L IBA + 80 mg / L DL-malic acid was selected as the soaking liquid, and different experimental groups were set up. Each experimental group used a different method to soak the cuttings. The remaining methods were the same as those in the example. The specific soaking treatment is shown in Table 2 below: Table 2 Detection:

[0021] 1. The rooting rates of the experimental groups in the above-mentioned Examples 1-2 in the second month after cutting were respectively counted. The specific results are shown in Table 3 below: Table 3

[0022] It can be seen from the above table that experimental groups 1-3 have the highest rooting rate, experimental group 4 has the worst rooting effect, and experimental groups 5-8 have slightly worse rooting effects than experimental groups 1-3, but the overall effect is also good. Overall, the early rooting rate can be effectively improved by treating the upper and lower ends of the cuttings with soaking solutions of different temperatures separately.

[0023] 2. The rooting conditions of the experimental groups 1-3 with the best rooting effect at 2 months, 3 months, 4 months, 5 months and 6 months after cutting were counted. That is, 10 rooted seedlings were selected from each group, and the average number of lateral roots, number of fibrous roots and average length of lateral roots of each group of cutting seedlings were counted using the Wanshen LA-S root scanner. The specific results are shown in Table 4 below: Table 4

[0024] As can be seen from the above table, in the early stage of cutting, the lateral roots and fibrous roots of experimental groups 1 and 2 grew vigorously, while the lateral roots of experimental group 3 grew but the fibrous roots developed less. For experimental group 3, the lateral root growth was not much different from that of embodiment 1-2 before 5 months of cutting, but the fibrous root growth was significantly reduced. The experimental group 1-2 as a whole developed more lateral roots and fibrous roots in the early stage, and the subsequent growth of fibrous roots was also better than that of experimental group 3.

[0025] 3. Detect the growth height of the cuttings of the experimental groups 1-3 6 months after cutting (10 cuttings were randomly selected from each group, the height of the above-ground part was measured, and the average value was calculated). The specific results are shown in Table 5 below: Table 5

[0026] It can be seen from the above table that the growth condition of the cutting seedlings in experimental group 1-2 is better than that in experimental group 3.

[0027] Based on the above tests, it can be seen that adding DL-malic acid to the soaking solution can effectively promote the growth of lateral roots and fibrous roots and improve the growth of cuttings.

[0028] The above embodiments are only used to illustrate the technical solutions of the present invention, rather than to limit the same. Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art should understand that the technical solutions described in the aforementioned embodiments may still be modified, or some of the technical features thereof may be replaced by equivalents. However, these modifications or replacements do not deviate the essence of the corresponding technical solutions from the spirit and scope of the technical solutions of the embodiments of the present invention.

Claims

1. A method for raising seedlings by cuttings of softwood branches of Psoralea corylifolia, characterized in that: The cutting seedling raising method comprises the following steps: S1. Use the pruning of young branches of the dragon palm as cuttings; S2. Prepare the soaking solution according to the following formula: 0.05% boric acid solution + IBA 800-1000 mg / L + DL-malic acid 80-100 mg / L; S3, soaking the upper end of the cutting branch upside down in the soaking solution in an ice water bath for 20-30 minutes, and then soaking the lower end of the cutting branch in the soaking solution at room temperature for 20-30 minutes to obtain pretreated cuttings; S4, soaking the pretreated cuttings in quicklime mixed with cooked rice slurry at room temperature and then rinsing with clean water; S5. Manage the cleaned cuttings for cuttings.

2. The method for raising seedlings by cuttings according to claim 1, wherein: In step S1, the young branches of the dragon palm blood tree are lignified or semi-lignified branches of the dragon palm blood tree seedlings that are more than two years old, and the young branches are pruned in a manner of controlling the length to 15-20 cm and retaining 3-4 bud points.

3. The cutting seedling raising method according to claim 1, characterized in that: In step S3, the upper end is immersed at 1 / 3-1 / 2 of the upper end, and the lower end is immersed at 1 / 3-1 / 2 of the lower end.

4. The cutting seedling raising method according to claim 1, characterized in that: In step S4, the quicklime concentration of the quicklime mixed with the cooked rice slurry for the overall room temperature immersion treatment is 10%-20%, and the content of rice in the cooked rice slurry is 10%-20%.

5. The cutting seedling raising method according to claim 1, characterized in that: The soaking treatment time in step S4 is 5-10 minutes, and the water rinsing time is 10-15 seconds.

6. The method for raising seedlings by cuttings according to claim 1, characterized in that: The substrate for cuttings in step S5 has the following material composition by mass: 2-3 parts of river sand, 2-3 parts of perlite, and 4-6 parts of humus soil.

7. The method for raising seedlings by cuttings according to claim 1, characterized in that: The cutting method in step S4 is greenhouse cutting, the temperature is controlled at 22-28° C., and the relative humidity is controlled at 80%-90%.

8. The cutting seedling raising method according to claim 1, characterized in that: In the step S4, water is poured thoroughly in time after cutting, and carbendazim solution is sprayed once 3-5 days after cutting.

9. The method for raising seedlings by cuttings according to claim 8, characterized in that: The carbendazim solution is a solution prepared by diluting 95% carbendazim by 1200-1500 times.

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