CN108633897B - Growth regulator for promoting root growth of ratoon rice and application method thereof - Google Patents
Growth regulator for promoting root growth of ratoon rice and application method thereof Download PDFInfo
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- CN108633897B CN108633897B CN201810600676.2A CN201810600676A CN108633897B CN 108633897 B CN108633897 B CN 108633897B CN 201810600676 A CN201810600676 A CN 201810600676A CN 108633897 B CN108633897 B CN 108633897B
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- rice
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- epibrassinolide
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- A—HUMAN NECESSITIES
- A01—AGRICULTURE; FORESTRY; ANIMAL HUSBANDRY; HUNTING; TRAPPING; FISHING
- A01N—PRESERVATION OF BODIES OF HUMANS OR ANIMALS OR PLANTS OR PARTS THEREOF; BIOCIDES, e.g. AS DISINFECTANTS, AS PESTICIDES OR AS HERBICIDES; PEST REPELLANTS OR ATTRACTANTS; PLANT GROWTH REGULATORS
- A01N45/00—Biocides, pest repellants or attractants, or plant growth regulators, containing compounds having three or more carbocyclic rings condensed among themselves, at least one ring not being a six-membered ring
-
- A—HUMAN NECESSITIES
- A01—AGRICULTURE; FORESTRY; ANIMAL HUSBANDRY; HUNTING; TRAPPING; FISHING
- A01N—PRESERVATION OF BODIES OF HUMANS OR ANIMALS OR PLANTS OR PARTS THEREOF; BIOCIDES, e.g. AS DISINFECTANTS, AS PESTICIDES OR AS HERBICIDES; PEST REPELLANTS OR ATTRACTANTS; PLANT GROWTH REGULATORS
- A01N43/00—Biocides, pest repellants or attractants, or plant growth regulators containing heterocyclic compounds
- A01N43/02—Biocides, pest repellants or attractants, or plant growth regulators containing heterocyclic compounds having rings with one or more oxygen or sulfur atoms as the only ring hetero atoms
- A01N43/04—Biocides, pest repellants or attractants, or plant growth regulators containing heterocyclic compounds having rings with one or more oxygen or sulfur atoms as the only ring hetero atoms with one hetero atom
- A01N43/06—Biocides, pest repellants or attractants, or plant growth regulators containing heterocyclic compounds having rings with one or more oxygen or sulfur atoms as the only ring hetero atoms with one hetero atom five-membered rings
- A01N43/12—Biocides, pest repellants or attractants, or plant growth regulators containing heterocyclic compounds having rings with one or more oxygen or sulfur atoms as the only ring hetero atoms with one hetero atom five-membered rings condensed with a carbocyclic ring
-
- A—HUMAN NECESSITIES
- A01—AGRICULTURE; FORESTRY; ANIMAL HUSBANDRY; HUNTING; TRAPPING; FISHING
- A01N—PRESERVATION OF BODIES OF HUMANS OR ANIMALS OR PLANTS OR PARTS THEREOF; BIOCIDES, e.g. AS DISINFECTANTS, AS PESTICIDES OR AS HERBICIDES; PEST REPELLANTS OR ATTRACTANTS; PLANT GROWTH REGULATORS
- A01N43/00—Biocides, pest repellants or attractants, or plant growth regulators containing heterocyclic compounds
- A01N43/02—Biocides, pest repellants or attractants, or plant growth regulators containing heterocyclic compounds having rings with one or more oxygen or sulfur atoms as the only ring hetero atoms
- A01N43/04—Biocides, pest repellants or attractants, or plant growth regulators containing heterocyclic compounds having rings with one or more oxygen or sulfur atoms as the only ring hetero atoms with one hetero atom
- A01N43/22—Biocides, pest repellants or attractants, or plant growth regulators containing heterocyclic compounds having rings with one or more oxygen or sulfur atoms as the only ring hetero atoms with one hetero atom rings with more than six members
-
- A—HUMAN NECESSITIES
- A01—AGRICULTURE; FORESTRY; ANIMAL HUSBANDRY; HUNTING; TRAPPING; FISHING
- A01N—PRESERVATION OF BODIES OF HUMANS OR ANIMALS OR PLANTS OR PARTS THEREOF; BIOCIDES, e.g. AS DISINFECTANTS, AS PESTICIDES OR AS HERBICIDES; PEST REPELLANTS OR ATTRACTANTS; PLANT GROWTH REGULATORS
- A01N43/00—Biocides, pest repellants or attractants, or plant growth regulators containing heterocyclic compounds
- A01N43/34—Biocides, pest repellants or attractants, or plant growth regulators containing heterocyclic compounds having rings with one nitrogen atom as the only ring hetero atom
- A01N43/36—Biocides, pest repellants or attractants, or plant growth regulators containing heterocyclic compounds having rings with one nitrogen atom as the only ring hetero atom five-membered rings
- A01N43/38—Biocides, pest repellants or attractants, or plant growth regulators containing heterocyclic compounds having rings with one nitrogen atom as the only ring hetero atom five-membered rings condensed with carbocyclic rings
Abstract
The invention discloses a growth regulator for promoting the root growth of ratoon rice and an application method thereof. The growth regulator comprises the following phytohormones: 2, 4-epibrassinolide, gibberellin and 3-indoleacetic acid. The regulator of the invention can effectively promote the generation of new roots and the growth of the roots of the ratoon rice, can increase the yield of the ratoon rice by 17 percent, and has the effect obviously better than that of singly using 2, 4-epibrassinolide, gibberellin and 3-indoleacetic acid or using two of them together.
Description
Technical Field
The invention relates to the field of plant growth regulators, in particular to a growth regulator for promoting root growth of ratoon rice and an application method thereof.
Background
The contradiction of population increase, farmland decrease and water resource shortage causes the grain safety situation in China to be very severe. Rice production is closely related to food safety in China, however, agricultural labor is lost due to rapid urbanization, economic benefits are reduced due to increase of production cost, and the current rice production faces serious problems of shortage of planting areas and unwilling planting areas. The problem of increasing the yield and the efficiency of rice production must be solved under new conditions, wherein the regenerated rice is one of the most effective production modes.
In recent years, research on aspects such as variety breeding and scientific cultivation greatly promotes the increase of the yield of the regenerated rice. However, the development of the yield potential is seriously influenced by the lag of the basic theory research of the ratooning rice, so that the key technology for forming and controlling the yield of the ratooning rice needs to be systematically researched to develop a key technology system for controlling the production of the ratooning rice.
The root system formed by the first season rice of the rice is aged when the rice is harvested, the nutrition absorption capacity is very low, mineral nutrition absorbed by old roots of the first season rice can not meet the requirement of growth and development of the ratoon rice, and nutrient elements required by production of the ratoon rice are mainly absorbed by the newly formed root system, so that the development of the growth regulator corresponding to the ratoon rice ratoon roots is very important, and the growth regulator has important practical significance for research and yield increase of the ratoon rice.
At present, the variety of the root growth regulators in the market is single, the effects of different root growth hormones applied to different plants are different, the research on the compounded root growth regulators is relatively less, in addition, the complex action relationship exists among the plant growth hormones, how to compound the growth hormones is carried out to generate the synergistic effect, the action of the growth hormones in crops is further improved, and the great technical difficulty still exists because the selection and the combination of the proportion and the variety and the action of the growth hormones in different parts of different plants.
Disclosure of Invention
The present invention aims to provide a growth regulator for promoting root growth of ratoon rice and an application method thereof. The growth regulator can effectively promote the rooting of the ratoon rice, thereby realizing the yield increase.
The technical scheme adopted by the invention is as follows:
a growth regulator for promoting root growth of ratoon rice, which comprises the following phytohormones: 2, 4-epibrassinolide, gibberellin and 3-indoleacetic acid.
Preferably, the mass ratio of the 2, 4-epibrassinolide to the gibberellin to the 3-indoleacetic acid is (1-10) mug: (1-10) mg: (1-10) mg.
Preferably, the mass ratio of the 2, 4-epibrassinolide to the gibberellin to the 3-indoleacetic acid is (3-8) mug: (3-8) mg: (3-8) mg.
More preferably, the mass ratio of 2, 4-epibrassinolide, gibberellin and 3-indoleacetic acid is 5 μ g: 5 mg: 5 mg.
A method for promoting rooting of ratoon rice comprises spraying the growth regulator on the stump base of first-season rice.
Preferably, the growth regulator is applied within 2 days after harvesting of the first season rice.
Preferably, the rice field water is drained before the growth regulator is applied.
Preferably, the application amount of the growth regulator is 15-25L/mu, and each liter of the growth regulator contains (1-10) mu g of 2, 4-epibrassinolide, (1-10) mg of gibberellin and (1-10) mg of 3-indoleacetic acid.
More preferably, the growth regulator is applied at 20L/acre.
Preferably, the first season rice is indica or japonica rice.
More preferably, the first season rice is yiliangyu 9918 indica rice or Zhonghua 11 japonica rice.
The invention has the beneficial effects that:
the regulator of the invention can effectively promote the generation of new roots and the growth of roots of the ratoon rice, can increase the yield of the ratoon rice by 17 percent, and has the effect obviously better than that of singly using 2, 4-epibrassinolide, gibberellin and 3-indoleacetic acid or using two of them together.
Detailed Description
The present invention will be described in further detail with reference to examples. It will also be understood that the following examples are included merely for purposes of further illustrating the invention and are not to be construed as limiting the scope of the invention, as the invention extends to insubstantial modifications and adaptations of the invention following in the light of the principles set forth herein. The specific process parameters and the like of the following examples are also only one example of suitable ranges, and the skilled person can make a selection within the suitable ranges through the description herein, and are not limited to the specific data of the following examples.
The formula of the main components of the experimental growth regulator is shown in the following table 1, and the rest of the auxiliary agents can be prepared according to the existing growth regulator formula, and the application is not particularly limited.
Formulation tables for different examples and comparative examples growth regulators:
TABLE 1
1. Laboratory tests:
the method comprises the steps of adopting a water culture method, after harvesting first season rice, pulling out rice stakes, cleaning soil, cutting old roots of the first season rice, transplanting the rice to Hoagland nutrient solution containing different growth regulators, conducting 5 parallel tests on each group, then taking an average value to record, observing the formation and growth conditions of new roots, counting the number and length of newly formed roots of the base part of each rice stake when the rice is cultured to the 9 th day, selecting Y Shuangyou 9918 japonica rice, using a control group (CK) to apply the same amount of clear water, and enabling the growth regulators of examples 1 and comparative examples 1-3 to influence the formation and growth of the new roots of the Y Shuangyou 9918 japonica rice to be shown in the following table 2, wherein the effect of the non-listed examples 2-5 is similar to that of the example 1, and the effect of the comparative examples 4-6 is weaker than that of the examples 1-3.
TABLE 2
As can be seen from Table 2: the average root length and the number of new roots of the example group and the comparative example group are obviously higher than those of the control group (CK), which shows that the root growth of the ratooning rice and the root growth of the ratooning rice can be promoted by singly applying the 2, 4-epibrassinolide, the 3-indoleacetic acid and the gibberellin or by compounding the 2, 4-epibrassinolide, the 3-indoleacetic acid and the gibberellin in pairs (the comparative example group) or by compounding the 2, 4-epibrassinolide, the 3-indoleacetic acid and the gibberellin (the example group).
2. Pot experiment:
the method comprises the steps of filling a plastic flowerpot with the caliber of 38cm, the bottom diameter of 30cm and the height of 40cm with rice field soil, planting ratooning rice, planting 4 holes in each pot, processing 30 pots with each formula, placing in a pot culture field with sufficient sunlight, growing under natural conditions, removing accumulated water in the pots after harvesting first season rice, spraying a growth regulator within 2 days, preferably wetting ratooning rice bases, spraying the same amount of clear water as a control group (CK), selecting Y Liangyou 9918 indica rice, and selecting the formula of the growth regulator from example 1. The yield of ratooning rice and related indexes are observed and recorded in Table 3, and the indexes are averaged.
TABLE 3
As can be seen from Table 3: the example group applied with the growth regulator has a dry root weight higher than that of the control group (CK), which shows that the growth regulator can promote the formation and growth of roots of the ratoon rice, and the plant height, the effective ear rate, the ear length and the effective ear seed size of the example group are all higher than those of the CK group, because the effective formation and growth of the roots of the ratoon rice can improve the absorption capacity of nutrient substances and meet the nutrient elements required by the production of the ratoon rice, so that the growth of the ratoon rice is promoted, and the effect of increasing the yield is realized, which also shows that the promotion of the formation and growth of the ratoon rice roots has an important influence on the yield of the ratoon rice.
3. Field test:
after harvesting first season rice, discharging rice field water, spraying a growth regulator to the root part of a pile of the first season rice within 2 days, uniformly spraying 20L growth regulator once per mu, spraying and not spraying 2 mu of the growth regulator in the rice field, wherein the selected ratoon rice is Y Liangyou 9918, the formula of the growth regulator adopts example 1, the same amount of clean water is sprayed as a control group (CK), the growth related indexes and the yield of the ratoon rice are shown in a table 4, wherein the dry weight of roots is the average weight of the roots of each root of the ratoon rice, and the effective ear rate is the effective ear number of the ratoon rice/the effective tiller number of the first season rice.
TABLE 4
As can be seen from Table 4: the example of applying the growth regulator also achieves the beneficial effect of increasing the yield of the ratooned rice.
Claims (6)
1. A method for promoting the rooting of ratoon rice is characterized in that: the method comprises the steps of spraying a growth regulator to the pile retaining base of first-season rice, wherein the growth regulator comprises the following phytohormones: the mass ratio of the 2, 4-epibrassinolide to the gibberellin to the 3-indoleacetic acid is (1-10) mu g: (1-10) mg: (1-10) mg;
draining the rice field water before applying the growth regulator;
the growth regulator is applied within 2 days after harvesting of the first season rice.
2. The method of claim 1, wherein: the mass ratio of the 2, 4-epibrassinolide to the gibberellin to the 3-indoleacetic acid is (3-8) mu g: (3-8) mg: (3-8) mg.
3. The method of claim 2, wherein: the mass ratio of the 2, 4-epibrassinolide to the gibberellin to the 3-indoleacetic acid is 5 mug: 5 mg: 5 mg.
4. The method for promoting rooting of ratooning rice as claimed in claim 1, wherein the growth regulator is applied in an amount of 15 to 25L/mu, and each liter of the growth regulator contains (1 to 10) μ g of 2, 4-epibrassinolide, (1 to 10) mg of gibberellin and (1 to 10) mg of 3-indoleacetic acid.
5. The method for promoting rooting of ratooning rice according to any one of claims 1 to 4, wherein: the first season rice is indica rice or japonica rice.
6. The method for promoting rooting of ratoon rice according to claim 5, wherein: the first season rice is Y Liangyou 9918 indica rice or Zhonghua 11 japonica rice.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201810600676.2A CN108633897B (en) | 2018-06-12 | 2018-06-12 | Growth regulator for promoting root growth of ratoon rice and application method thereof |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201810600676.2A CN108633897B (en) | 2018-06-12 | 2018-06-12 | Growth regulator for promoting root growth of ratoon rice and application method thereof |
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| CN108633897A CN108633897A (en) | 2018-10-12 |
| CN108633897B true CN108633897B (en) | 2020-07-14 |
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Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN112673914B (en) * | 2020-11-24 | 2023-04-11 | 含山县铜闸镇鑫禾供销合作社有限公司 | High-yield cultivation method for Y Liangyou 900 ratoon rice |
| CN112772325A (en) * | 2021-02-01 | 2021-05-11 | 安徽国豪农业科技有限公司 | Water-saving cultivation method for ratoon rice |
Citations (5)
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| CN103125490A (en) * | 2013-03-15 | 2013-06-05 | 刘克 | Plant growth regulating agent and production process thereof |
| CN104335861A (en) * | 2013-10-29 | 2015-02-11 | 华中农业大学 | Method of fully mechanized rice cropping during two harvesting seasons |
| CN105494372A (en) * | 2015-12-10 | 2016-04-20 | 中国农业科学院作物科学研究所 | Growth regulating agent capable of improving hybrid rice seed production and sterile line seed reproduction yield and application |
| CN105815166A (en) * | 2016-03-31 | 2016-08-03 | 江苏省农业科学院 | Method for producing coarse fodder by utilization of hybrid rice regenerative vegetative mass in East China |
| CN105875595A (en) * | 2016-04-27 | 2016-08-24 | 深圳百乐宝生物农业科技有限公司 | Plant growth regulator |
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2018
- 2018-06-12 CN CN201810600676.2A patent/CN108633897B/en active Active
Patent Citations (5)
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| CN103125490A (en) * | 2013-03-15 | 2013-06-05 | 刘克 | Plant growth regulating agent and production process thereof |
| CN104335861A (en) * | 2013-10-29 | 2015-02-11 | 华中农业大学 | Method of fully mechanized rice cropping during two harvesting seasons |
| CN105494372A (en) * | 2015-12-10 | 2016-04-20 | 中国农业科学院作物科学研究所 | Growth regulating agent capable of improving hybrid rice seed production and sterile line seed reproduction yield and application |
| CN105815166A (en) * | 2016-03-31 | 2016-08-03 | 江苏省农业科学院 | Method for producing coarse fodder by utilization of hybrid rice regenerative vegetative mass in East China |
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Non-Patent Citations (4)
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| 易旭荣等.碧护在水稻上的增产应用探究.《南方农业》.2017,第11卷(第36期),第13、15页. * |
| 李福贵等.水稻健株防病增产技术的集成与应用.《基层农技推广》.2016,第4卷(第5期),第30-33页. * |
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