CN110476985B - High-temperature-resistant rice plant growth regulator and use method and application thereof - Google Patents

High-temperature-resistant rice plant growth regulator and use method and application thereof Download PDF

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CN110476985B
CN110476985B CN201910876297.0A CN201910876297A CN110476985B CN 110476985 B CN110476985 B CN 110476985B CN 201910876297 A CN201910876297 A CN 201910876297A CN 110476985 B CN110476985 B CN 110476985B
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rice
plant growth
nahso
sucrose
flowering
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CN110476985A (en
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奉保华
符冠富
陈婷婷
陶龙兴
李光彦
姜宁
郁平慧
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China National Rice Research Institute
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China National Rice Research Institute
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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
    • 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
    • A01N43/14—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 six-membered rings
    • A01N43/16—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 six-membered rings with oxygen as the ring hetero atom
    • 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
    • A01N59/00—Biocides, pest repellants or attractants, or plant growth regulators containing elements or inorganic compounds
    • A01N59/02—Sulfur; Selenium; Tellurium; Compounds thereof

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Abstract

The invention discloses a high-temperature-resistant rice plant growth regulator and a use method and application thereof, belongs to the field of plant growth promotion, and is used for spraying when rice plants suffer from high-temperature forced damage in the flowering period, wherein the effective components of the regulator comprise sucrose and NaHSO3Said sucrose and NaHSO3The mass ratio of (0.1-2.5): (0.02-0.32). When in use, the rice plant growth regulator is diluted, and is sprayed to rice in the flowering period and the time after flowering of rice plants, and the spraying concentration is as follows: 0.25% sucrose and 0.04% NaHSO3. The invention adopts sucrose and NaHSO3The two reagents used for compounding belong to plant growth regulators which are low in price and convenient to purchase, and are sprayed twice in the flowering period and 10-15 days after flowering, so that the yield of rice can be greatly increased, the rice quality can be improved, and the damage of the high-temperature stress in the flowering period to the rice production can be effectively reduced.

Description

High-temperature-resistant rice plant growth regulator and use method and application thereof
Technical Field
The invention mainly relates to the field of plant growth promotion, in particular to a high-temperature-resistant rice plant growth regulator suffering from high-temperature stress at or before and after a rice flowering phase, and a use method and application thereof.
Background
The current plant growth regulators have various varieties, different pertinences, various effects, high price and complicated operation in some cases, and many products mainly aim at the seedling stage of rice, the meiosis stage and the filling stage of pollen mother cells or aim at improving the stress resistance of rice plants such as high temperature, low temperature, drought, saline-alkali stress and the like. However, there are few products that have been developed and can be practically handled particularly when rice is subjected to high temperature stress at the flowering stage.
Due to the increased degree of industrialization and human activities, greenhouse gas emission is becoming more and more severe, global temperature is gradually rising, and extreme high temperature weather frequently occurs. An evaluation report issued by IPCC in 2014 indicates that the earth's surface temperature may rise by 0.4-2.6 ℃ in the next 50 years, and by the end of this century (2100), by 0.3-4.8 ℃. It has been reported that the rice yield will decrease by 10% every 1 ℃ rise at night. In recent years, extremely high-temperature weather of less 3-5 days and more 10-15 days appears in rice regions in the middle and lower reaches of Yangtze river and south of China every year, and rice production safety is seriously harmed. In 2013, the high temperature in China mostly breaks through 40 ℃ and causes great loss to rice production, and even severe rice is collected. In the middle and lower rice areas of Yangtze river, the flowering time is mostly concentrated at 7-8 months, the period is a period when the rice is very sensitive to high temperature, and when the high-temperature weather continues, the adverse effects on tillering and heading, booting and heading, and flowering and fruiting of the rice are easily caused, the heading is blocked and the phenomenon of white glume appears in severe cases, and the yield and the quality of the rice are seriously reduced, which is common in early rice and middle rice. There is a need to solve the problem of yield and quality degradation of high temperature rice when subjected to high temperature stress.
Disclosure of Invention
The invention aims to solve the technical problem of providing a high-temperature-resistant rice plant growth regulator, and a use method and application thereof, and can solve the problems of yield reduction and quality reduction of rice subjected to high-temperature stress in a flowering period.
In order to solve the technical problems, the technical scheme provided by the invention is as follows:
in one aspect, the invention provides a high temperature resistant rice plant growth regulator for spraying when the rice plant is exposed to high temperature stress at the flowering stage, wherein the effective components of the regulator comprise sucrose and NaHSO3Said sucrose and NaHSO3The mass ratio of (0.1-2.5): (0.02-0.32). Preferably, the sucrose and NaHSO3The mass ratio of (0.2-1.0): (0.02-0.16). Further preferably, the sucroseAnd NaHSO3The mass ratio of (0.25-1.0): (0.04-0.16). Preferably, the sucrose and NaHSO3The mass ratio of (A) to (B) is 0.25: 0.04. When in use, the rice plant growth regulator is diluted, and is sprayed to rice in the flowering period and the time after flowering of rice plants, and the spraying concentration is as follows: 0.25% sucrose and 0.04% NaHSO3。
The invention adopts sucrose and NaHSO3The two reagents used for compounding belong to plant growth regulators which are low in price and convenient to purchase, and are sprayed twice in the flowering period and 10-15 days after flowering, so that the yield of rice can be greatly increased, rice quality is improved to a certain extent, and the damage of high-temperature stress in the flowering period to rice production can be effectively reduced. The invention provides a compound plant growth regulator capable of increasing the yield of rice, and aims to improve the yield and quality of rice when the rice is damaged by high-temperature stress in the flowering period, so as to further guarantee high and stable yield and high quality of the rice.
In another aspect, there is provided a method of using the high temperature resistant rice plant growth regulator, comprising the steps of:
1) mixing said sucrose with NaHSO3Diluting and mixing according to a proportion to obtain a compound reagent;
2) when the rice plants suffer high-temperature stress in the flowering period, the compound reagent is sprayed twice in the flowering period of the rice plants and 10-15 days after flowering, namely, the compound reagent is sprayed once in the flowering period of the rice plants and is sprayed once 15 days after flowering.
The invention adopts the compound preparation of sucrose and NaHSO3, performs optimal proportioning test screening when suffering high temperature stress in the flowering period, and directly sprays the medicine (twice spraying) to the rice plants in the flowering period and 10-15 days after flowering by taking the spraying of clear water as a contrast, thereby reducing the influence of the high temperature stress on the yield and the quality of the rice plants.
Further, in the step 2), the temperature of the high temperature stress generally refers to 35 ℃ or above, and at 37 ℃ or above, or even 40 ℃, the composite reagent of the invention can also reduce the damage of high temperature to rice yield and rice quality.
Further, sucrose and NaHSO are contained in the compound reagent in the step 1)3The mass ratio of (0.25-1.0): (0.04-0.16).
Further, in the step 1), the concentration composition of the compound reagent is as follows: 0.25% sucrose and 0.04% NaHSO3。
On the other hand, the application of the high-temperature resistant rice plant growth regulator is provided, and the high-temperature resistant rice plant growth regulator is used for spraying the rice plant growth regulator when the rice plant is subjected to high-temperature stress in the flowering period.
After adopting such design, the invention has at least the following advantages:
the invention adopts sucrose and NaHSO3The two reagents used for compounding belong to plant growth regulators which are low in price and convenient to purchase, and are sprayed twice in the flowering period and 10-15 days after flowering, so that the yield of rice can be greatly increased, rice quality is improved to a certain extent, and the damage of high-temperature stress in the flowering period to rice production can be effectively reduced. The invention provides a compound plant growth regulator capable of increasing the yield of rice, and aims to improve the yield and quality of rice when the rice is damaged by high-temperature stress in the flowering period, so as to further guarantee high and stable yield and high quality of the rice.
Detailed Description
The present invention is further illustrated by the following examples, but the present invention is not limited to the following examples, and any products similar or equivalent to the present invention, which are obtained in the light of the present invention, are within the scope of protection (note: the ratio of the raw materials in the examples is in parts by weight).
The invention uses clean water, cane sugar and NaHSO3Sucrose + NaHSO3Carrying out a spraying test in the flowering period of the rice and 10-15 days after flowering, and specifically comprising the following steps:
the experiment takes two rice varieties planted in the Hangzhou Fuyang in 2018 as examples, wherein early rice is Zhongjiazao 17, and middle rice is Tianyou Huazhan. Zhongjia teaAiming at the phenomenon that the early 17 plants suffer from high temperature stress of more than 37.5 ℃ in the flowering period and the Tianyou Hua plants suffer from high temperature stress of more than 38.2 ℃ in the flowering period, the inventor prepares to utilize sucrose and sodium hydrosulfite (NaHSO)3) The complex reagent with different concentrations is used for spraying the whole rice plant, and the optimal complex concentration is searched, so that the final result of high and stable yield is achieved.
The invention adopts sucrose and NaHSO3The compound preparation is subjected to optimal proportioning test screening when the compound preparation is subjected to high-temperature stress in the flowering period, clear water spraying is used as a control, 30 rice plants are directly sprayed with medicines (sprayed twice) 10-15 days after the flowering period and the flowering period, 100mL of the medicines are sprayed, the total yield of 20 rice plants is investigated in the maturation period, the fruiting rate is repeatedly investigated by 5 plants, and the investigation results are shown in tables 1 and 2.
Table 1 shows the yield of Jiazao 17 and Tianyou Huazhan in the respective treatments
Figure GDA0002593643560000041
As can be seen from Table 1, the results of the yield test of 20 strains showed that sucrose or NaHSO was sprayed alone3When 0.25 percent of cane sugar, 0.5 percent of cane sugar and 2.5 percent of cane sugar are sprayed, high-temperature inhibition can be reduced to a certain extent, the yield is improved, and NaHSO is sprayed3In the case of rice, the increase in rice yield is limited and the effect of high-temperature inhibition is weak, while sucrose + NaHSO is used3When the reagent is compounded, the rice yield can be obviously improved, and especially when 0.25 percent of sucrose and 0.04 percent of NaHSO are sprayed3When the reagent is compounded, the rice quality can be better improved, the yield increasing effects on 17 Jiazao (more than 37.5 ℃) and Tianyouhuazhan (more than 38.2 ℃) of early rice suffering from high-temperature stress in the flowering period are most obvious, compared with the contrast of spraying with clear water, the yield increasing amplitudes respectively reach 16.89% and 16.05%, and 0.25% of cane sugar or 0.04% of NaHSO is singly sprayed3The yield increase amplitude of the yield of Jiazao 17 (more than 37.5 ℃) and Tianyouhuazhan (more than 38.2 ℃) of early rice suffering from high temperature stress in the flowering period is less than 3%, which fully indicates that the yield of the early rice is increased by 0.25% of sucrose and 0.04% of NaHSO3CompoundingHas synergistic effect.
In Table 2, the quality of Jiazao 17 and Tianyou Huazhan in each treatment
Figure GDA0002593643560000051
The rice quality characteristics are analyzed, and the three aspects of the polished rice rate, the gum consistency, the amylose content and the like are found to have obvious improvement effects from the table 2. Wherein, sucrose or NaHSO is sprayed on the mixture independently3The rice quality can be improved to a certain extent by improving the rice-refining rate and the consistency of the glue, reducing the content of amylose to a certain extent and using sucrose and NaHSO3When the reagent is compounded, the rice yield can be obviously improved, and especially when 0.25 percent of sucrose and 0.04 percent of NaHSO are sprayed3When the reagent is compounded, the quality of rice can be obviously improved, and especially 0.25 percent of sucrose and 0.04 percent of NaHSO are sprayed3The rice quality can be better improved by the compound reagent, wherein the whole polished rice rate of the Zhongjiazao 17 and Tianyou Hua accounts for 18.7 percent and 14.9 percent respectively, the glue consistency of the Zhongjiazao 17 and Tianyou Hua accounts for 10.81 percent and 9.98 percent respectively, and the amylose content of the Zhongjiazao 17 and Tianyou Hua accounts for 29.0 percent and 23.7 percent respectively (Table 2).
Fully indicates that the original concentration of the exogenous sprayed sucrose is 0.5 percent and the NaHSO is added when Jiazao 17 and Tianyou Hua account for the high-temperature stress in the flowering period3The original concentration of the compound is 0.08 percent, and when the compound concentration is half of the original concentration, the yield of the rice can be obviously improved, the rice quality of the rice can be improved, and the purposes of high yield, stable yield and high quality can be achieved.
The high temperature stress encountered in the rice flowering period can obviously reduce the maturing rate of the rice, and further reduce the yield and the quality. The invention adopts sucrose and NaHSO3The compound is sprayed twice in the flowering period of rice and 10-15d after flowering, so that the yield and the quality of rice under high-temperature stress in the flowering period are obviously improved.
The above description is only for the purpose of illustrating the preferred embodiments of the present invention and is not to be construed as limiting the present invention in any way, and it will be apparent to those skilled in the art that the above description of the present invention can be applied to various modifications, equivalent variations or modifications without departing from the spirit and scope of the present invention.

Claims (5)

1. A high-temperature resistant rice plant growth regulator is characterized in that the effective components of the regulator comprise sucrose and NaHSO3When in use, the rice plant growth regulator is sprayed on rice in the flowering period and the time after flowering of the rice plant, and the spraying concentration is as follows: 0.25% sucrose and 0.04% NaHSO3。
2. A method of using the high temperature resistant rice plant growth regulator of claim 1, comprising the steps of:
1) mixing said sucrose with NaHSO3Diluting and mixing according to a proportion to obtain a compound reagent;
2) and when the rice plants suffer high-temperature stress in the flowering period, spraying the compound reagent twice in the flowering period of the rice plants and 10-15 days after flowering.
3. The method of using the high temperature resistant rice plant growth regulator of claim 2, wherein the temperature of the high temperature stress in step 2) is 37 ℃ or higher.
4. The use method of the high temperature resistant rice plant growth regulator according to claim 2 or 3, wherein the concentration of the compound reagent is as follows: 0.25% sucrose and 0.04% NaHSO3。
5. The use of the high temperature resistant rice plant growth regulator of claim 1 for spraying the rice plant growth regulator when the rice plant is subjected to high temperature stress during the flowering stage.
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Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN101606526A (en) * 2009-07-22 2009-12-23 张玉玲 A kind of paddy rice cold-resisting production-increasing preparation and method

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN101606526A (en) * 2009-07-22 2009-12-23 张玉玲 A kind of paddy rice cold-resisting production-increasing preparation and method

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
高温对杂交水稻光合作用特性的影响;王振中 等;《湖南农业科学》;19810630(第03期);说明书第2页第2栏第2段 *

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