CN114557353A - Composition for regulating and controlling harvest period of rice seeds and preparation method and application thereof - Google Patents
Composition for regulating and controlling harvest period of rice seeds and preparation method and application thereof Download PDFInfo
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- 235000007164 Oryza sativa Nutrition 0.000 title claims abstract description 69
- 235000009566 rice Nutrition 0.000 title claims abstract description 69
- 238000003306 harvesting Methods 0.000 title claims abstract description 63
- 230000001105 regulatory effect Effects 0.000 title claims abstract description 37
- 239000000203 mixture Substances 0.000 title claims abstract description 31
- 230000001276 controlling effect Effects 0.000 title claims abstract description 21
- 238000002360 preparation method Methods 0.000 title abstract description 8
- 240000007594 Oryza sativa Species 0.000 title 1
- 241000209094 Oryza Species 0.000 claims abstract description 68
- 239000002994 raw material Substances 0.000 claims abstract description 35
- KJXSIXMJHKAJOD-LSDHHAIUSA-N (+)-dihydromyricetin Chemical compound C1([C@@H]2[C@H](C(C3=C(O)C=C(O)C=C3O2)=O)O)=CC(O)=C(O)C(O)=C1 KJXSIXMJHKAJOD-LSDHHAIUSA-N 0.000 claims abstract description 34
- 239000000284 extract Substances 0.000 claims abstract description 31
- CIWBSHSKHKDKBQ-JLAZNSOCSA-N Ascorbic acid Chemical compound OC[C@H](O)[C@H]1OC(=O)C(O)=C1O CIWBSHSKHKDKBQ-JLAZNSOCSA-N 0.000 claims abstract description 20
- KQILIWXGGKGKNX-UHFFFAOYSA-N dihydromyricetin Natural products OC1C(=C(Oc2cc(O)cc(O)c12)c3cc(O)c(O)c(O)c3)O KQILIWXGGKGKNX-UHFFFAOYSA-N 0.000 claims abstract description 17
- QNVSXXGDAPORNA-UHFFFAOYSA-N Resveratrol Natural products OC1=CC=CC(C=CC=2C=C(O)C(O)=CC=2)=C1 QNVSXXGDAPORNA-UHFFFAOYSA-N 0.000 claims abstract description 15
- LUKBXSAWLPMMSZ-OWOJBTEDSA-N Trans-resveratrol Chemical compound C1=CC(O)=CC=C1\C=C\C1=CC(O)=CC(O)=C1 LUKBXSAWLPMMSZ-OWOJBTEDSA-N 0.000 claims abstract description 15
- 235000021283 resveratrol Nutrition 0.000 claims abstract description 15
- 229940016667 resveratrol Drugs 0.000 claims abstract description 15
- NLKUPINTOLSSLD-UHFFFAOYSA-L calcium;4-(1-oxidopropylidene)-3,5-dioxocyclohexane-1-carboxylate Chemical compound [Ca+2].CCC([O-])=C1C(=O)CC(C([O-])=O)CC1=O NLKUPINTOLSSLD-UHFFFAOYSA-L 0.000 claims abstract description 12
- ZZZCUOFIHGPKAK-UHFFFAOYSA-N D-erythro-ascorbic acid Natural products OCC1OC(=O)C(O)=C1O ZZZCUOFIHGPKAK-UHFFFAOYSA-N 0.000 claims abstract description 10
- 229930003268 Vitamin C Natural products 0.000 claims abstract description 10
- 235000019154 vitamin C Nutrition 0.000 claims abstract description 10
- 239000011718 vitamin C Substances 0.000 claims abstract description 10
- LFQSCWFLJHTTHZ-UHFFFAOYSA-N Ethanol Chemical compound CCO LFQSCWFLJHTTHZ-UHFFFAOYSA-N 0.000 claims description 32
- 238000000034 method Methods 0.000 claims description 18
- 241001018563 Nekemias grossedentata Species 0.000 claims description 14
- 230000010152 pollination Effects 0.000 claims description 14
- 244000269722 Thea sinensis Species 0.000 claims description 13
- 238000001035 drying Methods 0.000 claims description 10
- 238000005507 spraying Methods 0.000 claims description 8
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 7
- 238000002481 ethanol extraction Methods 0.000 claims description 6
- 210000005069 ears Anatomy 0.000 claims description 5
- 238000000605 extraction Methods 0.000 claims description 5
- 239000007788 liquid Substances 0.000 claims description 5
- 238000003756 stirring Methods 0.000 claims description 5
- 235000009754 Vitis X bourquina Nutrition 0.000 claims description 4
- 235000012333 Vitis X labruscana Nutrition 0.000 claims description 4
- 240000006365 Vitis vinifera Species 0.000 claims description 4
- 235000014787 Vitis vinifera Nutrition 0.000 claims description 4
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 claims description 4
- 229910052782 aluminium Inorganic materials 0.000 claims description 4
- 238000009924 canning Methods 0.000 claims description 4
- 239000002131 composite material Substances 0.000 claims description 4
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- 230000001737 promoting effect Effects 0.000 description 5
- 235000013399 edible fruits Nutrition 0.000 description 4
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- 239000003795 chemical substances by application Substances 0.000 description 3
- 238000011161 development Methods 0.000 description 3
- 230000018109 developmental process Effects 0.000 description 3
- 239000000523 sample Substances 0.000 description 3
- WEEMDRWIKYCTQM-UHFFFAOYSA-N 2,6-dimethoxybenzenecarbothioamide Chemical compound COC1=CC=CC(OC)=C1C(N)=S WEEMDRWIKYCTQM-UHFFFAOYSA-N 0.000 description 2
- 102000016938 Catalase Human genes 0.000 description 2
- 108010053835 Catalase Proteins 0.000 description 2
- 229930191978 Gibberellin Natural products 0.000 description 2
- 102000003992 Peroxidases Human genes 0.000 description 2
- 239000003963 antioxidant agent Substances 0.000 description 2
- 230000003078 antioxidant effect Effects 0.000 description 2
- 235000006708 antioxidants Nutrition 0.000 description 2
- IXORZMNAPKEEDV-UHFFFAOYSA-N gibberellic acid GA3 Natural products OC(=O)C1C2(C3)CC(=C)C3(O)CCC2C2(C=CC3O)C1C3(C)C(=O)O2 IXORZMNAPKEEDV-UHFFFAOYSA-N 0.000 description 2
- 239000003448 gibberellin Substances 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 108040007629 peroxidase activity proteins Proteins 0.000 description 2
- 239000007921 spray Substances 0.000 description 2
- 229960002385 streptomycin sulfate Drugs 0.000 description 2
- 238000012360 testing method Methods 0.000 description 2
- 239000004382 Amylase Substances 0.000 description 1
- 102000013142 Amylases Human genes 0.000 description 1
- 108010065511 Amylases Proteins 0.000 description 1
- 241000893384 Ceratorhiza oryzae-sativae Species 0.000 description 1
- 101710088194 Dehydrogenase Proteins 0.000 description 1
- 102000004190 Enzymes Human genes 0.000 description 1
- 108090000790 Enzymes Proteins 0.000 description 1
- 108010033040 Histones Proteins 0.000 description 1
- 235000006468 Thea sinensis Nutrition 0.000 description 1
- 230000032683 aging Effects 0.000 description 1
- 235000019418 amylase Nutrition 0.000 description 1
- 230000002180 anti-stress Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000009395 breeding Methods 0.000 description 1
- 230000001488 breeding effect Effects 0.000 description 1
- WUGPBVBHNMMSPD-UHFFFAOYSA-L calcium;cyclohexanecarboxylate Chemical compound [Ca+2].[O-]C(=O)C1CCCCC1.[O-]C(=O)C1CCCCC1 WUGPBVBHNMMSPD-UHFFFAOYSA-L 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- 229930002875 chlorophyll Natural products 0.000 description 1
- 235000019804 chlorophyll Nutrition 0.000 description 1
- ATNHDLDRLWWWCB-AENOIHSZSA-M chlorophyll a Chemical compound C1([C@@H](C(=O)OC)C(=O)C2=C3C)=C2N2C3=CC(C(CC)=C3C)=[N+]4C3=CC3=C(C=C)C(C)=C5N3[Mg-2]42[N+]2=C1[C@@H](CCC(=O)OC\C=C(/C)CCC[C@H](C)CCC[C@H](C)CCCC(C)C)[C@H](C)C2=C5 ATNHDLDRLWWWCB-AENOIHSZSA-M 0.000 description 1
- 235000009508 confectionery Nutrition 0.000 description 1
- 239000013068 control sample Substances 0.000 description 1
- 230000004069 differentiation Effects 0.000 description 1
- 230000002708 enhancing effect Effects 0.000 description 1
- 230000002349 favourable effect Effects 0.000 description 1
- 230000036039 immunity Effects 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
- 210000001161 mammalian embryo Anatomy 0.000 description 1
- 244000005700 microbiome Species 0.000 description 1
- 230000003647 oxidation Effects 0.000 description 1
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Classifications
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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
- A01G—HORTICULTURE; CULTIVATION OF VEGETABLES, FLOWERS, RICE, FRUIT, VINES, HOPS OR SEAWEED; FORESTRY; WATERING
- A01G13/00—Protecting plants
-
- A—HUMAN NECESSITIES
- A01—AGRICULTURE; FORESTRY; ANIMAL HUSBANDRY; HUNTING; TRAPPING; FISHING
- A01G—HORTICULTURE; CULTIVATION OF VEGETABLES, FLOWERS, RICE, FRUIT, VINES, HOPS OR SEAWEED; FORESTRY; WATERING
- A01G22/00—Cultivation of specific crops or plants not otherwise provided for
- A01G22/20—Cereals
- A01G22/22—Rice
-
- A—HUMAN NECESSITIES
- A01—AGRICULTURE; FORESTRY; ANIMAL HUSBANDRY; HUNTING; TRAPPING; FISHING
- A01G—HORTICULTURE; CULTIVATION OF VEGETABLES, FLOWERS, RICE, FRUIT, VINES, HOPS OR SEAWEED; FORESTRY; WATERING
- A01G7/00—Botany in general
- A01G7/06—Treatment of growing trees or plants, e.g. for preventing decay of wood, for tingeing flowers or wood, for prolonging the life of plants
-
- 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
- A01N37/00—Biocides, pest repellants or attractants, or plant growth regulators containing organic compounds containing a carbon atom having three bonds to hetero atoms with at the most two bonds to halogen, e.g. carboxylic acids
- A01N37/42—Biocides, pest repellants or attractants, or plant growth regulators containing organic compounds containing a carbon atom having three bonds to hetero atoms with at the most two bonds to halogen, e.g. carboxylic acids containing within the same carbon skeleton a carboxylic group or a thio analogue, or a derivative thereof, and a carbon atom having only two bonds to hetero atoms with at the most one bond to halogen, e.g. keto-carboxylic acids
-
- 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
- A01N43/08—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 with oxygen as the ring hetero atom
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02A—TECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE
- Y02A50/00—TECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE in human health protection, e.g. against extreme weather
- Y02A50/30—Against vector-borne diseases, e.g. mosquito-borne, fly-borne, tick-borne or waterborne diseases whose impact is exacerbated by climate change
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- Life Sciences & Earth Sciences (AREA)
- Environmental Sciences (AREA)
- Wood Science & Technology (AREA)
- General Health & Medical Sciences (AREA)
- Health & Medical Sciences (AREA)
- Engineering & Computer Science (AREA)
- Pest Control & Pesticides (AREA)
- Agronomy & Crop Science (AREA)
- Plant Pathology (AREA)
- Dentistry (AREA)
- Zoology (AREA)
- Ecology (AREA)
- Forests & Forestry (AREA)
- Biodiversity & Conservation Biology (AREA)
- Botany (AREA)
- Toxicology (AREA)
- Agricultural Chemicals And Associated Chemicals (AREA)
Abstract
The invention belongs to the field of rice seeds, and discloses a composition for regulating and controlling the harvest period of rice seeds, and a preparation method and application thereof. The composition is prepared from the following raw materials in percentage by mass: 61.50-63.50% of dihydromyricetin extract, 6.00-9.00% of resveratrol extract, 12.00-16.00% of vitamin C and 12.00-16.00% of prohexadione calcium. The invention has reasonable formula, comprehensively utilizes the respective effects of chemical raw materials and extracts in natural plants on regulating and controlling the harvest time of the seeds, and has very obvious effect on regulating and controlling the harvest time of the rice seeds through experimental verification; simple processing and preparation, convenient use and provides an ideal medicine for regulating and controlling the harvest period of rice seeds.
Description
Technical Field
The invention belongs to the field of rice seeds, and particularly relates to a composition for regulating and controlling the harvest period of rice seeds, and a preparation method and application thereof.
Background
The rice seeds are the most basic and irreplaceable production data in the rice production process, the quality of the rice seeds determines the success or failure of field production, and the timely mature harvest of the seeds is an important factor for determining the quality of the seeds. Generally, the harvest period of crop seeds has significant correlation with the germination rate of the seeds, the activity of the seeds, the robustness of seedlings after use, the growth condition and the like, so that timely harvesting of the seeds is a basic requirement in the crop seed production process. In recent years, with the expansion of seed production scale, the change of seed production modes and the frequent occurrence of extreme weather, unfavorable conditions that the weather is bad but the seeds need to be harvested are frequently encountered in the seed production process. The seed is reaped under the not good condition of weather, firstly causes inconveniently for the work of reaping, secondly the seed after the results leads to the seed bad because of the influence of weather reason, especially rainy weather, thereby the easy condition such as retting of taking place, the pollution of mildening and rot leads to the seed bad, and the very big degree influences seed quality, brings direct loss for the field production. A further disadvantage is that large areas of seed need to be harvested at the same time. The condition of simultaneously harvesting large-area seeds not only brings much inconvenience to the arrangement of harvesting machines and personnel, but also seriously affects the quality of the seeds which are not harvested in time. Therefore, the harvest of seeds at the right time and in wrong time is always dreaded by the seed production agricultural producers. Particularly, with the improvement of the prediction accuracy of weather forecast work, the development of products capable of regulating and controlling the harvest period of rice seeds becomes popular products in the rice seed production market, but the technical products have no breakthrough all the time.
Disclosure of Invention
In order to solve the above-mentioned disadvantages and drawbacks of the prior art, the present invention provides a composition for controlling the harvest time of rice seeds, which has the function of controlling the harvest time of rice seeds so that the seeds can reach the desired germination rate at a suitable time, and harvesting the seeds at a suitable time and under suitable weather conditions.
Another object of the present invention is to provide a process for the preparation of the above composition.
The invention further aims to provide the application of the composition in regulating and controlling the harvest period of rice seeds.
The purpose of the invention is realized by the following technical scheme:
a composition for regulating and controlling the harvest time of rice seeds is prepared from the following raw materials in percentage by mass:
preferably, the composition is prepared from the following raw materials in percentage by mass:
the dihydromyricetin extract is a product obtained by taking vine tea as a raw material through extraction and purification, wherein the mass percentage content of the dihydromyricetin is more than or equal to 55%;
the resveratrol extract is a product obtained by extracting and purifying grape skin and grape seeds serving as raw materials, wherein the resveratrol content is more than or equal to 20% in percentage by mass;
the mass percentage of the vitamin C in the vitamin C is more than 95 percent;
the prohexadione calcium is wettable powder with the prohexadione calcium accounting for 85 percent of the mass percentage.
The dihydromyricetin extract is prepared by the following steps: drying fresh stems and leaves of vine tea at the temperature of 35-45 ℃ to obtain vine tea drying raw materials; extracting the dry vine tea raw materials by an ethanol extraction method to obtain vine tea extract, concentrating the extract to 30-40% of the original volume, placing the concentrated solution in a refrigeration house at-4 ℃ for standing for 24 hours, and precipitating the bottom of the dry solution to obtain a dihydromyricetin extract; the mass ratio of the ampelopsis grossedentata dry raw material to the ethanol in the ethanol extraction method is 1: 10-12, wherein the volume percentage concentration of the ethanol is 85-95%; the Ampelopsis grossedentata is prepared from Ampelopsis grossedentata produced in Guangdong, Guangxi, Hunan, Hubei or Jiangxi. Preferably, the ethanol is at a concentration of 90% by volume; the sediment at the bottom of the drying liquid is obtained by drying the sediment at the bottom of the concentrated solution in an oven at the temperature of 90-95 ℃; the vine tea is produced in spring and summer in Zhang Jiajie region of Hunan province.
The resveratrol extract is prepared by the following steps: extracting rhizoma Polygoni Cuspidati as raw material with 75% ethanol 6 times the volume of the raw material as extraction solvent at 70-75 deg.C for 1 hr, concentrating, recovering ethanol, and spray drying the extractive solution to obtain resveratrol extract.
The vitamin C is produced by Zhengzhou Chengwang chemical industry Co.
The preparation method of the composition for regulating and controlling the harvest time of the rice seeds comprises the following operation steps: weighing the raw materials according to the proportion, placing the raw materials in a blending tank, uniformly stirring, and packaging or canning the raw materials in a composite aluminum bag to obtain the composition for regulating and controlling the harvest period of the rice seeds.
The application of the composition for regulating the harvest time of the rice seeds in regulating the harvest time of the rice seeds is characterized in that: the application comprises the following operation steps: on the day after artificial pollination of rice seeds, the composition for regulating the harvest period of the rice seeds is stirred and dissolved by water to form direct solution with the mass percentage of 0.1-0.3%, and the direct solution is sprayed on rice ears according to the dosage of 50 kg/mu. The spraying time can be selected to be adjusted according to the harvest period of the seeds for 1 to 2 times.
Preferably, the spraying is repeated once within 24 hours after the spraying, if rainy weather is encountered.
The principle of the invention is as follows:
dihydromyricetin is the main active component in vine tea plant, and has multiple functions of resisting aging, resisting oxidation, promoting cell balance growth, etc. The dihydromyricetin in the formula has the main function of promoting the activities of Peroxidase (POD), Catalase (CAT), dehydrogenase and amylase in the seeds and increasing the content of soluble protein in the rice seeds during the development process.
Resveratrol is a phytoncide, antioxidant, and histone modifying enzyme, and has effect in accelerating transportation of assimilate. The sterilization effect of the formula is mainly utilized in the formula, so that the damage of microorganisms is reduced, the stress capability of embryo cells of seeds is enhanced, and the transportation of assimilates is accelerated, so that the harvesting period of the seeds is advanced.
Vitamin C is a highly water-soluble antioxidant. On one hand, the formula is used for enhancing the anti-stress capability and the immunity of the seeds to the external environment in the development process, so that the germination vigor of the seeds is improved on the whole.
Prohexadione calcium: alias calcium cyclohexanoate. Prohexadione calcium is used for resisting lodging of rice at the earliest in Japan, and is used for controlling vigorous growth of lawns and fruit trees and preventing and treating fire blight of the fruit trees in Europe and America. Later, more systematic research in China discovers that the prohexadione calcium can increase the chlorophyll content and enhance the photosynthesis; promoting flower bud differentiation, improving fruit setting rate, promoting fruit expansion, and increasing sweet color; promoting the expansion of root tuber and tuber, increasing dry matter content and storability, increasing yield, improving quality, and preventing senilism. In the formula of the invention, the prohexadione-calcium can be quickly absorbed by leaf cells of crops and rice ears when being sprayed on the rice ears, and directly acts on a plant gibberellin synthetic target (the synthetic part of gibberellin is in the leaves) so as to regulate and control the seed harvesting period.
Compared with the prior art, the invention has the following advantages and beneficial effects:
(1) the composition has a reasonable formula, comprehensively utilizes respective effects of chemical raw materials and extracts in natural plants on regulation and control of the harvest time of seeds, and has very obvious effect on regulation and control of the harvest time of rice seeds through experimental verification;
(2) simple processing and preparation, convenient use and provides an ideal medicine for regulating and controlling the harvest period of rice seeds.
Detailed Description
The present invention will be described in further detail with reference to examples, but the embodiments of the present invention are not limited thereto.
1. All rice seeds were provided by the Hunan-Long Pingyao company during the experiment.
2. The method for treating the regulating agent in the harvest period during the seed production of rice comprises the following steps: after artificial pollination (about 7d after spraying 'good quality', on seed production field rice) is completed, a seed harvesting period regulating agent is respectively sprayed on rice ears and leaf surfaces (spraying clear water is used as a control). Sampling is carried out 10 days after the regulating agent is sprayed, samples are taken every 3 days, and indexes such as germination rate, germination vigor and the like of the samples are detected respectively. The combination for the test is Longliangyou 534 of Hunan Longun plain breeding.
3. The method for measuring the germination potential of the rice seeds comprises the following steps: the method is carried out according to a method for measuring the germination rate of rice seeds (GB/T3543), and the result of the statistical germination rate of the seeds at the 4 th day after the beginning of a germination experiment is the germination potential of the seeds.
4. The method for measuring the germination rate of the rice seeds comprises the following steps: the method is carried out according to the method for measuring the germination rate of rice seeds (GB/T3543), wherein the germination rate (%) of the seeds is the number of germinated seeds/total number of seeds multiplied by 100 percent, and the result counted on the 7 th day after the beginning of the germination experiment is taken in the experiment.
5. The seed mildew percentage (%). is mildew seed number/total seed number × 100%.
6. The sources of the various feedstocks used in the following examples are as follows:
the dihydromyricetin extract is prepared by the following steps: drying fresh stems and leaves of vine tea at the temperature of 35-45 ℃ to obtain vine tea drying raw materials; extracting the ampelopsis grossedentata dry raw material by adopting an ethanol extraction method to obtain ampelopsis grossedentata extract, concentrating the extract to 30-40% of the original volume, placing the concentrated solution in a cold storage at-4 ℃ for standing for 24 hours, and precipitating at the bottom of the dry liquid to obtain a dihydromyricetin extract, wherein the precipitation at the bottom of the dry liquid is to dry the precipitate at the bottom of the concentrated solution in an oven at 90-95 ℃; the mass ratio of the ampelopsis grossedentata dry raw material to the ethanol in the ethanol extraction method is 1: 10-12, wherein the volume percentage concentration of the ethanol is 85-95%, and the preferred volume percentage concentration of the ethanol is 90%; the ampelopsis grossedentata is ampelopsis grossedentata produced in Guangdong, Guangxi, Hunan, Hubei or Jiangxi, and preferably ampelopsis grossedentata produced in spring and summer in Zhang Jiajie region of Hunan. The content of dihydromyricetin in the obtained dihydromyricetin extract is not less than 55% by mass.
The resveratrol extract is prepared by the following steps: extracting rhizoma Polygoni Cuspidati as raw material with 75% ethanol 6 times the volume of the raw material as extraction solvent at 70-75 deg.C for 1 hr, concentrating, recovering ethanol, and spray drying the extractive solution to obtain resveratrol extract, wherein the resveratrol content is not less than 20%.
The vitamin C is produced by Zhengzhou Chengwang chemical industry Co., Ltd, and the mass percentage content is more than 95 percent;
the agricultural streptomycin sulfate is produced by Sichuan Chengdu general bioengineering company Limited, and the mass percentage content is more than 70 percent;
the prohexadione calcium is wettable powder with the prohexadione calcium content accounting for 85 percent by mass.
Example 1:
respectively weighing 63% of dihydromyricetin extract, 7% of resveratrol extract, 15% of vitamin C and 15% of agricultural streptomycin sulfate, placing the four raw materials in a blending tank, uniformly stirring, and packaging or canning by using a composite aluminum bag to obtain the composition for regulating and controlling the harvest period of rice seeds (hereinafter referred to as rice seed harvest period regulator).
Example 2:
respectively weighing four raw materials of 63 mass percent of dihydromyricetin extract, 7 mass percent of resveratrol extract, 15 mass percent of vitamin C and 15 mass percent of prohexadione calcium, putting the four raw materials into a blending tank, uniformly stirring, and packaging or canning by using a composite aluminum bag to obtain the composition for regulating and controlling the harvest period of rice seeds (hereinafter referred to as rice seed harvest period regulator).
Example 3: experiment for regulating and controlling rice seed harvesting period by rice seed harvesting period regulator
The two rice seed harvest period regulators prepared in the above example 1 and experimental example 2 were respectively dissolved in water under stirring to form 0.3% by weight of direct solution, and then the regulator was sprayed 1 time at the same time after the completion of artificial pollination in the rice seed production process, using the spraying of clean water as a control. As can be seen from the table 1, from the sample of 10 days after pollination to the sample of 24 days, the two rice seed harvesting period regulators can obviously improve the germination rate and the germination potential of the early seeds, namely, the harvesting period of the seeds is regulated, and meanwhile, the regulator is favorable for reducing the mildewed seed rate of the seeds and improving the overall quality of the seeds after being sprayed on the rice seed harvesting period regulator. The experimental group in which the rice seed harvest time regulator prepared in example 1 was spray-treated was referred to as treatment A, and the experimental group in which the rice seed harvest time regulator prepared in example 2 was spray-treated was referred to as treatment B.
In the seed samples 10 days after pollination, the germination vigor and the germination rate of the control are 65.33% and 75.33%, the germination vigor and the germination rate of the two treatment modes are obviously higher than those of the control, wherein the germination vigor and the germination rate of the treatment A are 72.33% and 86% respectively, and the germination vigor and the germination rate of the treatment B are 78.67% and 86% respectively. According to the national standard, when the germination rate of hybrid rice seeds reaches more than 80%, the seeds can be sold as qualified seeds. That is, under special extreme conditions, the seeds sprayed with the regulator can be harvested for field production; the germination rate of the control sample does not meet the national standard requirements until 13 days after pollination (3 days later than the sample sprayed with the regulator). In addition, 13 days after pollination, the germination percentage of the control was 92.33%, the germination percentage of the treatment A and the treatment B were 93.33% and 95.67%, respectively, and the germination percentage of the treatment B was the highest. Therefore, the regulator of the invention can not only regulate the harvest period of rice seeds, but also improve the overall quality of the seeds. It is important to note that the samples at 16 th and 19 th days after pollination removal have significant differences (P < 0.05) between treatment A and treatment B compared with the control clear water treatment samples, indicating that the regulating effect of the regulator on the seed harvest time is obvious. But there was no significant difference between the two treatments.
TABLE 1 influence of regulators at harvest stage of rice seeds on germination vigor, germination rate and mildew rate of seeds at different stages after pollination
Note: CK is the clear water control, and the modulator products of experimental examples 1 and 2 were treated with a and B, respectively. The test combination was Longliangyao 534.
Example 4: the composition for regulating the harvest time of rice seeds is utilized to carry out simulated regulation and control on the harvest time of the rice seeds
In the process of seed production of rice, according to different rice varieties, if the normal harvest period of a certain variety of seeds is expected to be harvested after 15 days after pollination, but according to weather forecast, bad weather occurs continuously for more than 5 days after 15 days or the harvesting work of the seeds is busy after 15 days, and the time needs to be staggered, the composition for regulating and controlling the harvest period of the rice seeds can be sprayed at different times just after artificial pollination or after artificial pollination is selected, so that the seeds are promoted to reach the specified germination rate in advance, and the seeds are harvested in advance for reducing loss or staggering busy seasons after 10 days or other times after pollination.
The above embodiments are preferred embodiments of the present invention, but the present invention is not limited to the above embodiments, and any other changes, modifications, substitutions, combinations, and simplifications which do not depart from the spirit and principle of the present invention should be construed as equivalents thereof, and all such modifications are intended to be included in the scope of the present invention.
Claims (9)
1. A composition for regulating the harvest time of rice seeds, comprising: the composition is prepared from the following raw materials in percentage by mass:
2. the composition for regulating harvest time of rice seeds of claim 1, wherein: the composition is prepared from the following raw materials in percentage by mass:
3. the composition for regulating harvest time of rice seeds of claim 1, wherein: the dihydromyricetin extract is a product obtained by taking vine tea as a raw material through extraction and purification, wherein the mass percentage content of the dihydromyricetin is more than or equal to 55%;
the resveratrol extract is a product obtained by extracting and purifying grape skin and grape seeds serving as raw materials, wherein the resveratrol content is more than or equal to 20% in percentage by mass;
the mass percentage of the vitamin C in the vitamin C is more than 95 percent;
the prohexadione calcium is wettable powder with the prohexadione calcium accounting for 85 percent of the mass percentage.
4. The composition for regulating harvest time of rice seeds of claim 1, wherein: the dihydromyricetin extract is prepared by the following steps: drying fresh stems and leaves of vine tea at the temperature of 35-45 ℃ to obtain a vine tea drying raw material; extracting the dry raw materials of the ampelopsis grossedentata by adopting an ethanol extraction method to obtain ampelopsis grossedentata extract, concentrating the extract to 30-40% of the original volume, placing the concentrated solution in a cold storage at the temperature of-4 ℃ for standing for 24 hours, and precipitating at the bottom of the dry liquid to obtain a dihydromyricetin extract; the mass ratio of the ampelopsis grossedentata dry raw material to the ethanol in the ethanol extraction method is 1: 10-12 percent of ethanol, wherein the volume percentage concentration of the ethanol is 85-95 percent; the Ampelopsis grossedentata is prepared from Ampelopsis grossedentata produced in Guangdong, Guangxi, Hunan, Hubei or Jiangxi.
5. The composition for regulating harvest time of rice seeds of claim 4, wherein: the ethanol volume percentage concentration is 90%; the sediment at the bottom of the drying liquid is obtained by drying the sediment at the bottom of the concentrated solution in an oven at the temperature of 90-95 ℃; the vine tea is produced in spring and summer in Zhang Jiajie region of Hunan province.
6. The composition for regulating harvest time of rice seeds of claim 1, wherein: the resveratrol extract is prepared by the following steps: extracting rhizoma Polygoni Cuspidati as raw material with 75% ethanol 6 times the volume of the raw material as extraction solvent at 70-75 deg.C for 1 hr, concentrating, recovering ethanol, and spray drying the extractive solution to obtain resveratrol extract.
7. Method for preparing a composition for regulating the harvest time of rice seeds according to claim 1 or 2, characterized in that it comprises the following operating steps: weighing the raw materials according to the proportion, placing the raw materials in a blending tank, uniformly stirring, and packaging or canning the raw materials in a composite aluminum bag to obtain the composition for regulating and controlling the harvest period of the rice seeds.
8. Use of a composition for regulating the harvest time of rice seeds according to claim 1, wherein: the application comprises the following operation steps: the application comprises the following operation steps: on the day after the artificial pollination of the rice seeds, the composition for regulating the harvest period of the rice seeds is stirred and dissolved by water to form a direct solution with the mass percentage of 0.1-0.3%, the direct solution is sprayed on rice ears according to the dosage of 50 kg/mu, and the direct solution is sprayed for 1-2 times according to the time required to be regulated in the harvest period of the seeds.
9. Use according to claim 1, characterized in that: if rainy weather is met within 24 hours after spraying, the spraying is needed to be repeated once.
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| WO2023169386A1 (en) * | 2022-03-09 | 2023-09-14 | 广东省农业科学院农业生物基因研究中心 | Composition for prompting early harvest of rice seeds, and preparation method therefor and application thereof |
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