CN114303694A - Method for regulating ramie fiber count and fiber strength by applying plant regulator - Google Patents
Method for regulating ramie fiber count and fiber strength by applying plant regulator Download PDFInfo
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Abstract
The invention discloses a method for regulating and controlling the number and the strength of ramie by applying a plant regulator, wherein one scheme is that 200mg/L ethephon is sprayed on ramie for a long time in a second ramie period, and the ramie is sprayed for the second time and harvested after 10 days; in the period of three numbs, 200mg/L ethephon is sprayed in the early growth stage, and is sprayed once in 10 days, delayed in rain, and sprayed for 4 times in total until the process mature period. In the second ramie period, 50mg/L silver nitrate is sprayed on the ramie for a long time, and the ramie is sprayed for the second time after 10 days and harvested; in the period of three numbs, 50mg/L silver nitrate is sprayed in the early stage of vigorous growth, and the silver nitrate is sprayed once in 10 days, delayed in rain, and sprayed for 4 times in total until the process mature period. According to the invention, ethylene or silver nitrate with a certain concentration is used as a plant regulator for the ramie for fiber in a certain period, so that the quality of the ramie fiber can be effectively regulated and controlled.
Description
Technical Field
The invention relates to the technical field of ramie planting, in particular to a method for regulating and controlling the number and the strength of ramie fibers by applying a plant regulator.
Background
Ramie [ Boehmeria nivea (L.) Gaud ] is a perennial root type herbaceous fiber plant in the genus of Boehmeria of the family Urticaceae, has multiple uses such as fiber, feed, pharmaceutical and the like, and the harvesting of bast fiber for textile industry is a main creation mode of economic value. The ramie fiber has the advantages of high single fiber strength, long fiber length, good moisture absorption and dispersion, good heat conductivity, white and glossy degummed color and the like. The fineness of ramie fibers (expressed by fiber count) and the strength of ramie fibers are two common important indicators for evaluating the quality of ramie fibers. Fiber strength is positively correlated with its yield, and fiber fineness is negatively correlated. Generally speaking, the larger the diameter of fiber cell, the thicker the cell wall, the more uniform the thickness of the head and the tail, the more sparse and uniform the nodes, the fewer the gaps and holes of each stage, the more uniform the stress of each part, and the larger the quality of single fiber. The larger the degree of polymerization of cellulose, the higher the degree of crystallinity and the degree of orientation, the stronger the bonding force between cellulose macromolecules and between base fibrils, and the correspondingly more the number of macromolecules and base fibrils which bear tensile force, the larger the quality of single fibers. Ethylene was found to influence the fibroblast developmental process. Ethylene plays an important role in cotton fiber development, and genes controlling ethylene metabolic pathways may be one of the key genes for cotton fiber development. 2016, reported that various concentrations of ethephon reduced the diameter of ramie fibers, while high concentrations of ethephon increased the fineness of ramie fibers. Therefore, the problem that the development of the ramie industry needs to be solved urgently is to enhance the fiber quality on the premise of not influencing the normal growth and development of plants.
The planting of ramie in fields faces the problems of unstable yield per unit of fiber, low quality and resistance. Therefore, for the continuous development of the ramie industry, it is imperative to find more field cultivation techniques capable of improving the yield and quality of ramie fibers. The plant growth regulator has the advantages of small investment, convenient and safe use, quick response and the like, and makes great contribution to agricultural production when being widely applied to industries such as flowers, fruits, vegetables, forestry and the like. The existing method of regulating the quality of ramie fibers has the defects of high cost, long period, low effect, serious influence on the development of the ramie industry, the problem of shrinking ramie planting area and the like.
Disclosure of Invention
Aiming at the defects of the prior art, the invention aims to provide a method for regulating and controlling the number and the strength of ramie fibers by applying a plant regulator.
In order to achieve the purpose, the invention adopts the following technical scheme:
as one of the technical schemes, the invention provides a method for regulating and controlling the number and the strength of ramie by applying a plant regulator, which comprises the following specific processes:
in the second ramie period, 200mg/L ethephon is sprayed on the ramie for a long time, and the second spraying and harvesting are carried out after 10 days; in the period of three numbs, 200mg/L ethephon is sprayed in the early growth stage, and is sprayed once in 10 days, delayed in rain, and sprayed for 4 times in total until the process mature period.
As another technical scheme, the invention also provides a method for regulating and controlling the number of ramie fibers and the strength of the ramie fibers by applying a plant regulator, which comprises the following specific steps:
in the second ramie period, 50mg/L silver nitrate is sprayed on the ramie for a long time, and the silver nitrate is sprayed for the second time after 10 days and harvested; in the period of three numbs, 50mg/L silver nitrate is sprayed in the early stage of vigorous growth, and the silver nitrate is sprayed once in 10 days, delayed in rain, and sprayed for 4 times in total until the process mature period.
The invention has the beneficial effects that: according to the invention, ethylene or silver nitrate with a certain concentration is used as a plant regulator for the ramie for fiber in a certain period, so that the quality of the ramie fiber can be effectively regulated and controlled.
Drawings
FIG. 1 shows ethephon and AgNO3Graph of the effect on fiber count at the secondary hemp stage for 387 and 52;
FIG. 2 shows ethephon and AgNO3Graph of the effect on fiber count at the tri-hemp stage for 387 and 52;
FIG. 3 shows ethephon and AgNO3A result chart of the influence on the strength of the upper, middle and lower fibers of 387 germplasms in the second ramie period;
FIG. 4 shows ethephon and AgNO3A result chart of the influence on the strength of the upper, middle and lower fibers of the 52 germplasm in the second hemp period;
FIG. 5 shows ethephon and AgNO3A result chart of the influence on the strength of the upper, middle and lower fibers of 387 germplasms in the period of three hemp;
FIG. 6 shows ethephon and AgNO3And (3) a result chart of the influence on the strength of the upper, middle and lower fibers of the 52 germplasms in the three-hemp period.
Detailed Description
The present invention will be further described with reference to the accompanying drawings, and it should be noted that the present embodiment is based on the technical solution, and the detailed implementation and the specific operation process are provided, but the protection scope of the present invention is not limited to the present embodiment.
1. Test materials
The varieties to be tested are Bozima bengalensis (number 387) and Boehmeria lutea (number 52) with different fiber fineness, and the fiber fineness is 2308 and 1691 respectively according to records of China Ramie variety records. The test was carried out in the resource garden of ramie at the base of the hown garden of the university of agriculture in Hunan during the period of Dima and Sanma from 7 to 10 months in 2020. Fertilizing after cutting hemp: 23.5 kg/mu of urea. The experiment was set up with three treatments: 200mg/L Ethephon (ETH), CK group water, 50mg/L silver nitrate (AgNO)3) Line 4, 12 stumps are one process, each process being kept at a distance from each other to prevent interference.
The treatment method comprises the following steps: spraying the second hemp for 1 time in 17 days in 7 months, and sampling in 0 day and 5 days after spraying. Spraying was carried out again after 10 days, and second spraying was carried out 7 months and 27 days and harvested. The three-hemp spraying is started in the early stage of vigorous growth, is sprayed once in 10 days, is delayed by rain, and is sprayed for 4 times in total until the process mature period. The first spray was applied on day 2 of 9 months (stage S1), the second spray was applied on day 13 of 9 months (stage S2), the third spray was applied on day 24 of 9 months (stage S3), and the fourth spray was applied on day 13 of 10 months and harvested (stage S4). The medicine is used in situ, and in the morning of sunny days, the prepared medicine is sprayed on the leaves and stems of ramie plants by a hand-pressing type spraying pot.
2. Measurement items and methods
2.1 sampling method
The upper, middle and lower parts of ramie stem have different fiber development degrees and different fiber fineness, and can be respectively regarded as fiber development immature stage, mature stage and mature stage. Therefore, all sampling strategies are divided into an upper part, a middle part and a lower part for sampling, and the specific sampling positions are as follows: the upper part is an upward part taking a position 30cm away from the stem tip as a base point; the middle part is about 10cm up and down with the middle position of the stem as a base point; the lower part is about 10cm up and down by taking a position 10cm away from the ground as a base point.
The second hemp sampling strategy is: samples were taken 0 day (20 minutes to 1 hour) and 5 days after spraying. Randomly selecting 15 ramie with consistent growth vigor, shearing the ramie from a position close to the ground, peeling off the whole ramie bark, removing the ramie shell, placing the original ramie in a well-ventilated place for air drying, shearing off the part taken in a corresponding period after air drying, and storing to prepare materials for measuring the fiber fineness and the chemical component content of the bark. And at the final harvest stage, randomly selecting 15 plants for each variety treatment, placing the obtained raw ramie in a well-lighted environment, airing, and storing for reserving for measuring the quality.
The three-hemp sampling strategy is as follows: and (3) after each spraying, the sampling is carried out, 15 plants are randomly selected for each treatment of each variety in the final harvest period, and the obtained raw ramie is placed in a well-lighted environment to be dried and stored for quality measurement.
2.2 determination of agronomic traits
In the mature period of the first ramie process, the plant height, the stem thickness and the fresh skin thickness of 20 ramie are measured for each variety, the biological yield (namely fresh weight) of the overground part is measured, and the dry weight of the original ramie is measured after the shells of the ramie are removed and the ramie is dried. The investigation method is as follows:
(1) and (3) measuring the plant height: the height distance from the base of the stem to the top of the stem was measured with a ruler. The unit cm.
(2) Stem thickness measurement: the diameter from the base to the tip height 1/3 was measured with a vernier caliper. The unit mm.
(3) And (3) measuring the skin thickness: after the harvest of the rind, the thickness of the middle part was measured with a vernier caliper. The unit mm.
(4) The yield of the fresh peel is as follows: dry raw hemp/fresh bark weight x 100%.
(5) Effective plant rate: effective number of strains/total number of strains × 100%.
(6) Fiber count: fiber diameter was measured using a model YG002 fiber diameter gauge according to: y is 293+991869/x2, wherein y is the count (counts) of ramie fibers, x is the diameter (um) of ramie fibers, and the fiber diameter is converted into counts.
(7) Fiber strength: the fiber strength was measured using an LLY-06B electronic single fiber strength tester.
3. Test results
3.1ETH and AgNO3Influence on the quality of upper, middle and lower fibers of ramie
As can be seen from FIG. 1, spraying ETH and AgNO on Dima hemp3On the next 0 th day, 5 th day and the process maturation period, the fiber fineness of the upper part, the middle part, the lower part and the average value of the ramie with different genotypes can be influenced by different degrees, and the total shows the rule that the number of the upper part fibers is high, the middle part is the second and the lower part is the smallest. From the average values of the upper part, the middle part and the lower part, the fiber counts of all treatment groups are not greatly different when the ETH is sprayed on the 0 th day, the ETH is larger than CK in 5 days and the harvesting period, and the AgNO3 groups are smaller than CK. In general, ETH has better effect on increasing the number of upper fibers of ramie.
As can be seen from FIG. 2, ETH and AgNO in the three anesthesia periods3The spraying treatment can obviously affect the fiber counts of the ramie with different genotypes, the influence degree is gradually increased along with the increase of the spraying times, and the fiber counts of the ramie with different genotypes are affected by different medicaments. The development rules of upper, middle and lower fibers of ramie treated in the same period are approximately the same, and the upper fibers have the highest count, the middle fibers have the next lowest count and the lower fibers have the lowest count, which is similar to the previous research. In summary, ETH treatment increases the average fiber count of ramie, while silver nitrate decreases the average fiber count of ramie, but there are differences between varieties.
As can be seen from fig. 3-6, the fiber strength gradually increases from the upper part to the lower part of the bark. After the treatment of the medicament, the two varieties of fiber strength show similar rules in the two-season ramie, but the rules among varieties are different. AgNO3Most of the fiber strength of the treated group is obviously higher than CK, and most of the fiber strength of the ETH treated group is lower than CK.
In the second ramie period, the lower fiber strength of the mature period of the 387 germplasm ETH treatment group is higher than CK; the 52 germplasm ETH treatment composition has the upper part of the mature period higher than CK and the middle lower part lower than CK. In the period of three-hemp, the fiber strength of the middle part of the 387 germplasm of the ETH treatment group is higher than CK in the initial stage (S3) of the black pole, and the mature period (S4) is obviously lower than CK; the lower fiber strength black rod is obviously higher than CK at the initial stage and lower than CK at the mature stage. The strength of the upper part of the 52 germplasm is higher than CK after the first spraying in the early period of vigorous growth, and the strength of the upper part, the middle part and the lower part of the 52 germplasm is lower than CK in other periods.
In fig. 1-6, the differential significance analyses were all the results of the treatment group compared to the control group alone, indicating significant differences at the p-0.05 level; indicates significant difference at p-0.01 level
3.2ETH and AgNO3Influence on ramie yield and related agronomic traits
The research result shows that: ETH and AgNO3The treatment can obviously affect the mature period yield and related agronomic characters of different genotype ramie processes, and different germplasm pairs ETH and AgNO3The response results of the treatments were slightly different, as shown in table 1.
TABLE 1
Note: different lower case letters indicate that the difference is significant at the p 0.05 level;
AgNO of ramie germplasm 387 in the period of two numbs3The plant height of the treated group is obviously higher than CK, and the plant height of the ETH treated group is not obviously different from CK. ETH treatment group and AgNO of germplasm 523The treatment groups were significantly higher than CK. AgNO of germplasm 52 in the aspects of stem thickness and bark thickness3Both the stem thickness and the skin thickness of the treated groups were significantly higher than CK, while the stem thickness and the skin thickness of the ETH treated groups were not significantly different from CK. ETH and AgNO of 387 germplasm3The treatment has no significant difference with CK. In the aspect of yield, the yield of the fresh bark, the fresh bark weight of a single plant and the weight average of the original hemp of the single plant in the 387 germplasm ETH treatment group are less than CK, and the AgNO is3The processing groups are all higher than CK. The weight average of the yield of the fresh bark, the weight of the fresh bark of a single plant and the weight of the original hemp of the single plant in the 52 germplasm ETH treatment group is more than CK and AgNO3The fresh skin weight and the dry weight of the raw ramie of the treatment group are both more than CK.
In the period of three-ramie, the plant heights of the ETH groups of the two genotypes of ramie are obviously smaller than that of CK and AgNO3The stem thickness of the group was smaller than CK, but there was no significant difference. 52 germplasm AgNO3The plant height and stem thickness of the group are obviously higher than CK, and the CK skin thickness is obviously higher than that of ETH group and AgNO3And (4) grouping. In terms of yield, the fresh skin weight and the dry weight of the raw ramie treated by ETH of the two genotypes of ramie are less than CK, and AgNO3The weight of the treated fresh bark and the weight of the dried raw ramie are higher than CK.
In summary, Ethephon (ETH) and silver nitrate (AgNO) were selected3) It is more suitable. Namely: spraying Ethephon (ETH) 200mg/L for long time in the second ramie stage, spraying for the second time 10 days later, and harvesting. Or spraying 50mg/L silver nitrate (AgNO) on the ramie for a long time in the period of secondary ramie3) Spraying for the second time after 10 days and harvesting; in the period of three numbs, 200mg/L Ethephon (ETH) or 50mg/L silver nitrate (AgNO) is sprayed in the early stage of vigorous growth3) Spraying once in 10 days, delaying in rain, and spraying 4 times in total until the process mature period.
Various corresponding changes and modifications can be made by those skilled in the art based on the above technical solutions and concepts, and all such changes and modifications should be included in the protection scope of the present invention.
Claims (2)
1. A method for regulating and controlling the number and the strength of ramie fibers by applying a plant regulator is characterized by comprising the following specific steps:
in the second ramie period, 200mg/L ethephon is sprayed on the ramie for a long time, and the second spraying and harvesting are carried out after 10 days; in the period of three numbs, 200mg/L ethephon is sprayed in the early growth stage, and is sprayed once in 10 days, delayed in rain, and sprayed for 4 times in total until the process mature period.
2. A method for regulating and controlling the number and the strength of ramie fibers by applying a plant regulator is characterized by comprising the following specific steps:
in the second ramie period, 50mg/L silver nitrate is sprayed on the ramie for a long time, and the silver nitrate is sprayed for the second time after 10 days and harvested; in the period of three numbs, 50mg/L silver nitrate is sprayed in the early stage of vigorous growth, and the silver nitrate is sprayed once in 10 days, delayed in rain, and sprayed for 4 times in total until the process mature period.
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Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4507144A (en) * | 1982-04-01 | 1985-03-26 | Ramot University Authority For Applied Research And Industrial Development, Ltd. | Plant growth method and composition |
| CN101292607A (en) * | 2008-05-28 | 2008-10-29 | 云南省农业科学院热区生态农业研究所 | Regulating and controlling method for sex ratio of jatopha curcas flower with chemical reagent |
| EP2248421A1 (en) * | 2009-05-07 | 2010-11-10 | GMI - Gregor-Mendel-Institut für Molekulare Pflanzenbiologie GmbH | Accumulation of biomass in plants |
| CN106489986A (en) * | 2016-10-18 | 2017-03-15 | 湖南农业大学 | A kind of method of hormone regulating and controlling Boehmeria lignin |
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- 2022-01-04 CN CN202210003350.8A patent/CN114303694A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4507144A (en) * | 1982-04-01 | 1985-03-26 | Ramot University Authority For Applied Research And Industrial Development, Ltd. | Plant growth method and composition |
| CN101292607A (en) * | 2008-05-28 | 2008-10-29 | 云南省农业科学院热区生态农业研究所 | Regulating and controlling method for sex ratio of jatopha curcas flower with chemical reagent |
| EP2248421A1 (en) * | 2009-05-07 | 2010-11-10 | GMI - Gregor-Mendel-Institut für Molekulare Pflanzenbiologie GmbH | Accumulation of biomass in plants |
| CN106489986A (en) * | 2016-10-18 | 2017-03-15 | 湖南农业大学 | A kind of method of hormone regulating and controlling Boehmeria lignin |
Non-Patent Citations (3)
| Title |
|---|
| 欧阳雁飞: "欧阳雁飞", 《中国优秀硕士学位论文全文数据库》 * |
| 王火明等: "几种植物生长调节剂对苎麻产量和品质的影响", 《中国麻业》 * |
| 邢虎成等: "两种乙烯抑制剂对苎麻(Boehmeria nivea(L.) Gaud)性别及植物学性状的影响", 《中国麻业科学》 * |
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