A method for raising seedlings of smilax china by cutting softwood branches

Abstract

The present invention provides a method for raising seedlings from softwood cuttings of schisandra chinensis, and relates to the technical field of artificial planting of schisandra chinensis. The method mainly comprises selecting cuttings, preparing an immersion solution using a 0.05% boric acid solution, IBA, and DL-malic acid, treating the upper ends of the cuttings with the immersion solution in an ice-water bath, treating the lower ends of the cuttings with a room-temperature immersion solution, and soaking the cuttings in quicklime mixed with cooked rice slurry. The present invention overcomes the shortcomings of the prior art by effectively improving the rooting rate of the cuttings while promoting the growth of lateral roots and fibrous roots through the treatment of the cuttings, thereby improving the quality of the schisandra chinensis cuttings.

Description

Technical Field

[0001] The invention relates to the technical field of artificial planting of Cyperus rotundus, and in particular to a method for raising seedlings by cutting of Cyperus rotundus softwood branches. Background Art

[0002] Feilong Palm Blood is primarily found in southern my country. Its medicinal properties include promoting blood circulation, dispersing blood stasis, dispelling wind and dampness, and relieving swelling and pain. It is particularly effective in treating rheumatic bone pain and traumatic injuries. Consequently, its market value is considerable. Cultivating Feilong Palm Blood not only brings substantial economic benefits to growers but also promotes the development of the local medicinal material industry.

[0003] Existing methods for growing safflower are primarily seeding and cuttings. Seeding requires collecting mature seeds and sowing them in the appropriate season, but this method takes a long time to grow and is also expensive. Cuttings, on the other hand, involve selecting healthy branches for cuttings, which generally significantly shortens the growth period of safflower seedlings. Therefore, cuttings are currently the most common method for artificially growing safflower.

[0004] In the conventional artificial cuttings of Feilong Palm Blood, the use of growth hormones to treat the cuttings can significantly improve the rooting rate of the branches, and the Feilong Palm Blood artificial cuttings need to be transplanted after they have grown into seedlings (usually about half a year to eight months after cutting). During the transplanting process, the growth of the lateral roots and fibrous roots of the seedlings significantly affects the subsequent transplant survival and growth. Lateral roots are mainly roots that grow from the main roots. They are usually at a certain angle to the main roots 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 subsequent transplanting of Feilong Palm Blood. Therefore, the main research direction of Feilong Palm Blood artificial cuttings 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. 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 the dragon palm tree, which effectively improves the rooting rate of the branch cuttings by treating the cutting branches, while promoting the growth of lateral roots and fibrous roots, thereby improving the quality of the dragon palm tree blood cutting seedlings.

[0006] To achieve the above objectives, the present invention is implemented through the following technical solutions:

[0007] A method for raising seedlings by cuttings of softwood shoots of Pteris viridis, comprising the following steps:

[0008] S1. Use the pruning of young branches of the dragon palm as cuttings;

[0009] S2. Prepare the soaking solution according to the following formula: 0.05% boric acid solution + 800-1000 mg / L IBA + 80-100 mg / L DL-malic acid;

[0010] S3, the upper end of the cutting branch is immersed in the soaking solution in an ice water bath for 20-30min, and then the lower end of the cutting branch is immersed in the soaking solution at room temperature for 20-30min to obtain the pretreated cutting strips;

[0011] S4, the pre-treated cuttings were soaked in quicklime mixed with cooked rice slurry at room temperature and then rinsed with clean water;

[0012] S5. Manage the cleaned cuttings for cuttings.

[0013] Preferably, the twigs of the dragon palm blood tree in step S1 are lignified or semi-lignified branches of the current year of the dragon palm blood tree seedlings that are two years old or more, and the twigs are pruned in a manner of controlling the length to 15-20 cm and retaining 3-4 buds.

[0014] Preferably, in step S3, the upper end is immersed at a position of 1 / 3-1 / 2 of the upper end, and the lower end is immersed at a position of 1 / 3-1 / 2 of the lower end.

[0015] Preferably, in step S4, the quicklime concentration of the quicklime mixed with the cooked rice slurry for the overall room temperature soaking treatment is 10%-20%, and the content of rice in the cooked rice slurry is 10%-20%.

[0016] Preferably, the soaking treatment time in step S4 is 5-10 minutes, and the water rinsing time is 10-15 seconds.

[0017] Preferably, the substrate for cuttings in step S5 has the following material composition in parts by mass: 2-3 parts river sand, 2-3 parts perlite, and 4-6 parts humus soil.

[0018] 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%.

[0019] Preferably, in step S4, water is poured thoroughly in time after cutting, and carbendazim solution is sprayed once 3-5 days after cutting.

[0020] Preferably, the carbendazim solution is a solution of 95% carbendazim diluted 1200-1500 times.

[0021] The present invention provides a method for raising seedlings by cuttings of softwood branches of the dragon palm, which has the following advantages over the prior art:

[0022] 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 smilax china flower cuttings at different temperatures respectively, so as to effectively promote the rooting and survival of the cuttings after the cuttings, further promote the occurrence and growth of lateral roots and fibrous roots, ensure the growth of the cuttings after the cuttings, and improve the quality of the cuttings, thereby providing a good foundation for the subsequent survival of the cuttings after transplantation. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] Figure 1 This is a schematic diagram of the rooting situation of the cutting seedlings of the experimental group 1-3 of the present invention 2 months after cutting;

[0024] Figure 2 This is a schematic diagram of the rooting situation of the cutting seedlings of the experimental group 1-3 of the present invention after 3 months of cutting;

[0025] Figure 3 This is a schematic diagram of the rooting situation of the cutting seedlings of the experimental group 1-3 of the present invention after 4 months of cutting;

[0026] 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 5 months after cutting;

[0027] Figure 5 This is a schematic diagram of the rooting situation of the cutting seedlings of the experimental group 1-3 of the present invention after 6 months of cutting;

[0028] Figure 6 This is a schematic diagram of the root scan of the cutting seedlings of experimental group 2 of the present invention at 6 months after cutting;

[0029] Figure 7 This is a schematic diagram of the root scan of the cutting seedlings of experimental group 3 of the present invention at 6 months after cutting. DETAILED DESCRIPTION

[0030] To make the objectives, technical solutions, and advantages of the embodiments of the present invention more clear, the technical solutions in the embodiments of the present invention are clearly and completely described below in conjunction with the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. All other embodiments obtained by ordinary technicians in this field based on the embodiments of the present invention without making any creative efforts shall fall within the scope of protection of the present invention. Example 1:

[0031] Cultivation of seedlings by cuttings of softwood branches of the dragon palm:

[0032] (1) Select the current-year lignified or semi-lignified branches of two-year-old or older saplings of the plant, cut them to a length of 15-20 cm, and retain 3-4 buds as cuttings;

[0033] (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 pretreated cuttings.

[0034] (3) Place the pretreated cuttings directly in a disinfectant and soak for 8 minutes, 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);

[0035] (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.

[0036] (5) Insert the lower end of the cleaned cuttings into the sterilized substrate, then water thoroughly and cultivate 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.

[0037] Refer to the above method to set up different experimental groups and choose different soaking solutions. The specific soaking solution selections are shown in the following table:

[0038] Table 1

[0039] Example 2:

[0040] Referring to the method for raising seedlings of softwood cuttings of the dragon palm in Example 1 above, 0.05% boric acid solution + 800 mg / L IBA + 80 mg / L DL-malic acid were selected as the soaking liquid, and different experimental groups were set up. Each experimental group used a different method to soak the cuttings. The rest of the methods were the same as those in the example. The specific soaking treatment is shown in Table 2 below:

[0041] Table 2

[0042]

[0043] Detection:

[0044] 1. The rooting rates of the experimental groups in Examples 1-2 above were counted in the second month after cutting. The specific results are shown in Table 3 below:

[0045] Table 3

[0046]

[0047] As can be seen from the above table, the rooting rate of experimental groups 1-3 is the highest, the rooting effect of experimental group 4 is the worst, and the rooting effect of experimental groups 5-8 is slightly worse than that of experimental groups 1-3, but the overall effect is also good. In summary, 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.

[0048] 2. The rooting conditions of experimental groups 1-3 with the best rooting effect were counted at 2 months, 3 months, 4 months, 5 months and 6 months after cutting. 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 a Wanshen LA-S root scanner. The specific results are shown in Table 4 below:

[0049] Table 4

[0050]

[0051] 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 Example 1-2 5 months before cutting, but the fibrous root growth was significantly reduced. Experimental group 1-2 developed more lateral roots and fibrous roots as a whole in the early stage, and the subsequent growth of fibrous roots was also better than that of experimental group 3.

[0052] 3. Detect the growth height of cuttings in 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:

[0053] Table 5

[0054]

[0055] 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.

[0056] 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.

[0057] 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 they can still modify the technical solutions described in the aforementioned embodiments, or make equivalent replacements for some of the technical features therein. 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 various embodiments of the present invention.

Claims

1. A method for raising seedlings by cuttings of softwood shoots of Pteris parviflora, characterized in that: The cutting seedling raising method comprises the following steps: S1. Use pruning shoots of the dragon palm blood tree as cuttings, and the dragon palm blood tree shoots are lignified or semi-lignified branches of the current year of the dragon palm blood tree seedlings that are two years old or more; S2. Prepare the soaking solution according to the following formula: 0.05% boric acid solution + 800-1000 mg / L IBA + 80-100 mg / L DL-malic acid; S3, the upper end of the cutting branch is immersed in an ice water bath in the soaking solution for 20-30min, and then the lower end of the cutting branch is immersed in the soaking solution at room temperature for 20-30min to pre-treat the cutting bar, and the position of the upper end soaking is the upper end 1 / 3-1 / 2, and the position of the lower end soaking is the lower end 1 / 3-1 / 2; S4, the pre-treated cuttings were soaked in quicklime mixed with cooked rice slurry at room temperature and then rinsed with clean water; S5. Manage the cleaned cuttings for cuttings.

2. The cutting seedling raising method according to claim 1, wherein: The method of pruning the tender branches in step S1 is to control the length to 15-20 cm and retain 3-4 buds.

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

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

5. The cutting seedling raising method according to claim 1, wherein The substrate for the 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.

6. The cutting seedling raising method according to claim 1, wherein: 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%.

7. The cutting seedling raising method according to claim 1, wherein: In the step S4, water the plants thoroughly in time after the cuttings are made, and spray the plants with carbendazim solution once 3-5 days after the cuttings are made.

8. The cutting seedling raising method according to claim 7, wherein: The carbendazim solution is a solution prepared by diluting 95% carbendazim by 1200-1500 times.

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