CN111096321A

CN111096321A - Dwarf and strong comprehensive regulation and control agent for high-stalk variety of glutinous sorghum and application of dwarf and strong comprehensive regulation and control agent

Info

Publication number: CN111096321A
Application number: CN201911231278.9A
Authority: CN
Inventors: 贺水泉; 谭晓明; 李耀奇
Original assignee: Individual
Current assignee: Individual
Priority date: 2019-12-05
Filing date: 2019-12-05
Publication date: 2020-05-05

Abstract

The invention discloses a dwarf and strong comprehensive regulator for a glutinous sorghum high-stem variety and application thereof, wherein the regulator comprises chlormequat chloride, diethylaminoethanol acetate, uniconazole, prohexadione calcium and an auxiliary agent; the regulating agent of the invention reduces the center of gravity of the sorghum, namely, the aim of reducing the center of gravity of crops is also achieved by regulating the length of the stem node, and the regulating agent not only does not influence the property of the ear part, but also has the effect of optimizing the property (improving the seed setting rate and increasing the grain weight); the functional period of the later functional leaves of the sorghum is prolonged, the photosynthetic efficiency of the sorghum is improved, and the sources of the crops are greatly increased, so that the stored substances at the base parts of the stems are reduced, the filling degree of the base parts of the stems of the crops is enhanced, the stems are thick and strong, and the breaking resistance is improved; the later-period root activity of the crops is enhanced, so that the later-period lodging resistance of the crops is greatly improved; the nutrient absorption capacity of crops in the later period is enhanced, and premature senility is prevented.

Description

Dwarf and strong comprehensive regulation and control agent for high-stalk variety of glutinous sorghum and application of dwarf and strong comprehensive regulation and control agent

Technical Field

The invention relates to the field of plant regulators, and in particular relates to a dwarf and strong comprehensive regulator for a high-stem glutinous sorghum variety and application thereof.

Background

Sorghum is one of the most important grain, feed, brewing and energy crops in the world, and is the fifth largest grain crop next to corn, wheat, rice and barley, calculated as annual yield. Glutinous sorghum is a main raw material for brewing traditional Maotai-flavor and Luzhou-flavor famous wines in China, the Maotai, the wuliangye, the Luzhou Laojiao and other famous and high-quality wines in China are brewed by using glutinous sorghum as a main raw material, the fen-flavor liquor and Shanxi mature vinegar are brewed by using the glutinous sorghum, and the taste of the product is superior to that of the common round-grained sorghum. At present, glutinous sorghum is mainly planted in southern sorghum main producing areas such as Sichuan and Guizhou in China, the production capacity of the glutinous sorghum cannot meet the requirements of domestic and foreign markets, and the glutinous sorghum is easy to fall down, low in yield and poor in disease resistance, so that the breeding and application of the glutinous sorghum are limited. Therefore, the lodging resistance of the stalks can be effectively enhanced by reducing the plant height, particularly shortening the length of two internodes at the base parts of the stalks and increasing the thickness of the thick stalks and the thickness of the stalks. However, since the growth and development of the stem internodes and the growth and development of the ear traits of gramineous crops are closely related to each other, the inhibition of internode length inevitably affects the development of the ear traits of gramineous crops.

Disclosure of Invention

The invention aims to provide a dwarf comprehensive control agent for a glutinous sorghum high-stem variety and application thereof, which can dwarf plants, shorten the distance between stem nodes, inhibit ineffective tillering and increase the yield of crops.

In order to achieve the purpose, the invention adopts the following technical scheme:

a dwarf synthetic regulator for a high-stem glutinous sorghum variety comprises chlormequat chloride, diethylaminoethanol acetate, uniconazole, prohexadione calcium and an auxiliary agent.

Preferably, the regulating agent is wettable powder.

Further, the weight ratio of chlormequat chloride, diethylaminoethanol acetate, uniconazole, prohexadione calcium to the auxiliary agent is 1.3-1.5:1:0.1-0.2:1: 15-50.

In the present invention, if necessary, other adjuvants such as penetrants, emulsifiers, lubricating mold release agents, synergists, etc., which are well known to those skilled in the art, may be included.

The invention also provides another technical scheme:

the application of the dwarf comprehensive regulator for the high-stem variety of the glutinous sorghum is carried out by adding water and spraying at two or more stages of a tillering stage, a turning-green and jointing stage, a booting and heading stage and a flowering and filling stage of the sorghum.

Uniconazole is a triazole plant growth regulator. Belongs to a broad-spectrum and high-efficiency plant growth regulator and has the functions of sterilization and weeding. Is an antagonist of gibberellin synthesis, and uniconazole is an ergosterol biosynthesis inhibitor. Has effects in controlling vegetative growth, inhibiting cell elongation, shortening internode, dwarfing plant, promoting lateral bud growth and flower bud formation, and improving stress resistance. The activity of the compound is 6-10 times that of paclobutrazol, but the residue of the compound in soil is only 1/10 of paclobutrazol, the influence on the succeeding crops is small, and the compound has no secondary control phenomenon.

The diethylaminoethanol caproate has the functions of promoting substance transportation, enhancing disease resistance, coordinating vegetative growth and reproductive growth, promoting fructification, enhancing stress resistance and the like.

Chlormequat chloride is an antagonist of gibberellin, can enter plant bodies through plant leaves, twigs, buds, root systems and seeds, controls the excessive growth of plants, promotes the reproductive growth, shortens plant internodes, develops long short, strong, thick and root systems, resists lodging, enhances photosynthesis, improves the fruit setting rate of certain crops, improves the quality and improves the yield. Chlormequat chloride is a high-activity plant growth regulator, can be quickly degraded by microorganisms and light in soil when being applied to the environment, has short residual effect period, and needs to be applied for multiple times in the growth period of some crops.

The prohexadione calcium can effectively dwarf and strong sorghum plants, promote early tillering, improve the capability of the plants to resist adverse conditions (such as weak light, high humidity, diseases and the like), and has obvious effect on promoting the growth of sorghum roots.

The invention has the beneficial effects that: the regulating agent of the invention reduces the center of gravity of the sorghum, namely, the aim of reducing the center of gravity of crops is also achieved by regulating the length of the stem node, and the regulating agent not only does not influence the property of the ear part, but also has the effect of optimizing the property (improving the seed setting rate and increasing the grain weight); the functional period of the later functional leaves of the sorghum is prolonged, the photosynthetic efficiency of the sorghum is improved, and the sources of the crops are greatly increased, so that the stored substances at the base parts of the stems are reduced, the filling degree of the base parts of the stems of the crops is enhanced, the stems are thick and strong, and the breaking resistance is improved; the later-period root activity of the crops is enhanced, so that the later-period lodging resistance of the crops is greatly improved; the nutrient absorption capacity of crops in the later period is enhanced, and premature senility is prevented.

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

The factors influencing the lodging of the gramineous crops include the following: the first is the center of gravity and the structure of the stem of the plant; the stalk is low in gravity center, reasonable in structure and strong in elasticity, and is resistant to lodging; secondly, the content of the stalks is seriously lost, so that the swelling pressure of the base parts of the stalks is reduced, and the falling resistance is reduced; 15-30% of the yield of the gramineous crops is obtained by transferring the stored substances of the stems of the gramineous crops to the ears, and organic substances in the stems are greatly lost due to the invasion of plant diseases and insect pests, so that the stems of the stems become thin and loose, and the toughness of the stems is reduced; third, the root system is senilism in the later period; and fourthly, the unreasonable accumulation speed and distribution of the photosynthetic products in the later period.

Therefore, the present invention has been made in view of the above-mentioned circumstances.

1. Breaking through the traditional technical framework for controlling the lodging of gramineous crops, controlling and reducing the basal internode length of gramineous crops to reduce the sub-spike internode length, and achieving the purposes of reducing plant height and lowering the gravity center of gramineous crops; and the photosynthesis time of the later functional leaves is prolonged, the photosynthesis efficiency is improved, the nutrient at the base of the stem is reduced from being transferred to the ear, and the filling degree and the swelling pressure between the basal internodes are improved.

2. Obviously reducing the length between the ear joints of the gramineous crops, generally reducing the plant height by 3-30cm (the reduction height of different crops is different), thereby moving the center of gravity of the gramineous crop plants downwards and enhancing the lodging resistance of sorghum.

3. The later-period root activity of the gramineous crops is enhanced, the later-period root activity can be improved by more than 30 percent, and the gramineous crops are lodging-resistant and premature senility-resistant.

In the invention, the uniconazole can be replaced by mepiquat chloride, naphthylacetic acid, alcalin, ACR-1222, regulated phosphine, maleic hydrazide, dicksolac acid or triiodobenzoic acid, but in the invention, the uniconazole is selected.

Example 1

Preparing a regulating agent: 15g of chlormequat chloride, 10g of diethylaminoethanol acetate, 2g of uniconazole, calcium prohexadione, 15g of sodium dodecyl sulfate and 25g of sodium naphthalene sulfonate formaldehyde condensate are crushed and mixed, and water is added to prepare 1L of solution.

And (3) diluting with water by 500 times at the tillering stage, the green turning and jointing stage and the booting and heading stage of the sorghum, and spraying 50L of the solution per mu.

Example 2

Preparing a regulating agent: 13g of chlormequat chloride, 10g of diethylaminoethanol acetate, 1g of uniconazole, prohexadione calcium, 10g of sodium dodecyl benzene sulfonate and 10g of sodium naphthalene sulfonate formaldehyde condensate, crushing, mixing and adding water to prepare 1L of solution.

In the tillering stage of sorghum, diluting with water at 200 times in the stage of turning green and jointing, and spraying 40L per mu.

Example 3

Preparing a regulating agent: 15g of chlormequat chloride, 10g of diethylaminoethanol acetate, 1g of uniconazole, calcium prohexadione, 25g of sodium dodecyl benzene sulfonate and 25g of sodium naphthalene sulfonate formaldehyde condensate are crushed and mixed, and water is added to prepare 1L of solution.

And in the period of turning green and jointing sorghum, diluting with water by 400 times at the stage of booting and heading, and spraying for application, wherein 60L of water is sprayed per mu.

Comparative example 1

This comparative example is the same as example 1 except that chlormequat chloride was sprayed.

Comparative example 2

This comparative example is the same as example 1, except that only uniconazole and diethylaminoethanol acetate were sprayed.

Comparative example 3

This comparative example is the same as example 1, except that only prohexadione-calcium was sprayed.

Examples of the experiments

In the same sorghum planting area, 6 treatment groups were set, and were treated with examples 1 to 3 and comparative examples 1 to 3, respectively, and the statistical results are shown in table 1.

TABLE 1

	Plant height (cm)	Photosynthetic Rate (. mu.mol/(m 2. s))	Yield (kg/hectare)
				Example 1	72.40	43.38	10253.5
Example 2	70.20	38.56	10005.9
				Example 3	71.69	40.26	10267.2
Comparative example 1	120.45	33.70	9400.8
				Comparative example 2	91.50	35.90	9657.8
Comparative example 3	140.60	31.20	9108.6

Claims

1. A dwarf and strong comprehensive regulator for a glutinous sorghum high-stem variety is characterized by comprising chlormequat chloride, diethylaminoethanol acetate, uniconazole, prohexadione calcium and an auxiliary agent.

2. The dwarf comprehensive regulator of the sorghum culm variety of claim 1, which is a wettable powder.

3. The dwarf comprehensive control agent for the high-stem waxy sorghum variety according to claim 1 or 2, wherein the weight ratio of chlormequat chloride, diethylaminoethanol acetate, uniconazole, prohexadione calcium and auxiliary agent is 1.3-1.5:1:0.1-0.2:1: 15-50.

4. The dwarf synthetic regulator of a waxy sorghum culm variety according to claim 1, wherein the auxiliary agent comprises a wetting agent and a dispersing agent.

5. The dwarf synthetic regulator of a waxy sorghum culm variety according to claim 4, wherein the wetting agent is sodium dodecyl sulfate or sodium dodecyl benzene sulfonate.

6. The dwarf synthetic regulator of a waxy sorghum culm variety according to claim 4, wherein the dispersant is a sodium naphthalene sulfonate formaldehyde condensate or a sodium methyl naphthalene sulfonate formaldehyde condensate.

7. The use of the comprehensive regulator for dwarfing and strengthening of a high-stalk sorghum variety as claimed in claim 1, characterized in that the regulator is applied by spraying water at two or more stages of tillering stage, greening and jointing stage, booting and heading stage and flowering and filling stage of sorghum.