CN104686530B - Plant growth regulator special for big-panicle rice and preparation method and application thereof - Google Patents
Plant growth regulator special for big-panicle rice and preparation method and application thereof Download PDFInfo
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- CN104686530B CN104686530B CN201510127906.4A CN201510127906A CN104686530B CN 104686530 B CN104686530 B CN 104686530B CN 201510127906 A CN201510127906 A CN 201510127906A CN 104686530 B CN104686530 B CN 104686530B
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- growth regulator
- uniconazole
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Abstract
The invention provides a plant growth regulation composition special for big-panicle rice. The plant growth regulation composition is composed of gibberellin and uniconazole. The invention further provides a plant growth regulator special for the big-panicle rice. The plant growth regulator comprises gibberellin, uniconazole and auxiliary materials. The invention further provides a preparation method and application of the plant growth regulator. By the compound use of the gibberellin and the uniconazole, apical-grain superiority is regulated, grain filling of superior rice grains is maintained, and grain filling conditions for inferior rice grains are improved; furthermore, the physiological activity of root systems of the rice in the grain filling and maturing period is improved, and the photosynthetic efficiency of flag leaves and other function leaves is improved. When the gibberellin and the uniconazole in synergistic interaction are applied to the big-panicle rice, the setting rate and thousand seed weight of the big-panicle rice can be increased, so that the yield of the rice is increased, and the quality of the rice is improved. Experimental results show that the plant growth regulator can increase the yield of the rice by 6%-12%, improve the appearance quality of the rice to some degree, particularly improve the transparency of the rice and greatly decrease the chalky grain rate.
Description
Technical field
The invention belongs to plant growth regulator technical field, more particularly, to a kind of large spike Oryza sativa L. plant growth regulating
Agent, its preparation method and its application.
Background technology
Rice facts have proved selection-breeding and the big fringe of research (weight fringe) type rice varieties (combination) and its high-yield culturing nearly ten years
Technology will be to improve the main direction that rice makees yield research from now on, but, it is general to there is setting percentage in large spike rice varieties (combination)
All over the problem of low (i.e. Grain Filling obstacle), seriously limit the performance of yield potential.
The technical measures technology in the past solving the above problems has two: (1) applies granulated fertilizer, such as applies n fertilizer after Rice Flowering, but
Effect with danger and is deposited, and administration as fertile in n is improper, suffers from harmful and lodging of causing a disease, the underproduction on the contrary.Phosphate fertilizer can also be applied (chase after outside root
Fertile), but effect is unstable.(2) apply Abscisic Acid (aba), some effects, but aba price be high, Higher output is not accompanied by a higher income,
And the easy photodissociation of aba, effect is unstable, and result of study has no and comes into the market.
Hybrid paddy rice, especially subspecies hybrid paddy rice have obvious growth vigor and yield heterosis, but because setting percentage is low, thus
Yield potentiality is difficult to play.Therefore, seek a kind of new method can increase rice yield be current research emphasis direction it
One.
Content of the invention
Applicant's research finds, the low seed of large spike Seed-Setting Percentage in Rice typically occurs in the delayed differentiation in a fringe
Inferior grain.Additionally, after Rice Flowering, nutrient substance is withdrawn to new organic centre's (seed) from nutrition organs, and rice strain is natural
Aging, physiologically active declines, and is also the solid low key factor of Inferior grain.Therefore, one of research purpose of applicant is exactly
Find and adjust the Inferior grain grouting gesture biological conditioning technology old and feeble with delaying rice strain, to improve Seed-Setting Percentage in Rice and mass of 1000 kernel,
Improve rice yield eventually.
Applicant's research finds, the solid obstacle of hybrid paddy rice is not inseminated and is obstructed, but grouting obstacle, first bloom is " strong
Gesture grain " is early in the milk, serotinous " Inferior grain " post-grouting, and the grouting of " Superiors grains " inhibits the grouting of " Inferior grain ", thus " weak
Gesture grain " circularity is low, and hollow kernels are a lot of.So-called large spike setting percentage of hybrid rice low actually " Inferior grain " is in the milk insufficient institute
Cause.Therefore, the two of the investigative technique thinking of applicant are intended to both ensure the normal grouting gesture of " Superiors grains ", improve " weak tendency again
The grouting gesture of grain ", improves setting percentage, improves yield.
It is an object of the invention to provide a kind of large spike Oryza sativa L. plant growth regulator special, its preparation method and its should
The setting percentage of large spike Oryza sativa L. and thousand can be improved with the large spike Oryza sativa L. plant growth regulator special that, the present invention provides
Weight, thus improve rice yield improving quality.
The invention provides a kind of large spike Oryza sativa L. special plant growth regulating composition, by gibberellins (ga3) and alkene effect
Azoles (s-3307) forms.
In the large spike Oryza sativa L. special plant growth regulating composition that the present invention provides, external source ga3/ uniconazole P can affect
The level of seed inherent plasmid (iaa) and affect " inter grain apical dominance ", ga3Promote " inter grain apical dominance ", uniconazole P
Then coordinate and balance " inter grain apical dominance ".By gibberellins and uniconazole P compounding use, one is that " intergranular top is excellent for regulation to the application
Gesture ", both kept the grouting of " Superiors grains ", improved the grouting condition of " Inferior grain " again；During two are raising rice milking stage maturation
The physiologically active of root system, the photosynthetic efficiency of raising sword-like leave and other functional leafs, both Synergistics, during for large spike Oryza sativa L.,
Rice Heading is neat, the florescence concentrates, ripe early；Guarantor's root shield leaf, degeneration-resistant health care, annesl are good；Increase grain weightening, improve yield, benefit
Height, does not also interfere with germination, and has the effect improving rice quality.
In the present invention, the mass ratio of described gibberellins and uniconazole P is preferably 0.5～2.5:0.5～2.5, more preferably
1.5:1.0.
In the large spike Oryza sativa L. plant growth regulator special that the present invention provides, Exogenous gibberellic acid (ga3) lead to uniconazole P
Overregulate the level of rice grain endogenous gibberellins and iaa, promote Rice Heading neat, delay blade and Senescence of Root System, and subtract
Light florescence, to grouting parameter high temperature or low temperature or drought stress injury, promotes kernel grouting, improves setting percentage and mass of 1000 kernel,
Increase yield, have certain improvement result simultaneously to rice edible quality.
Present invention also offers a kind of large spike Oryza sativa L. plant growth regulator special, including gibberellins, uniconazole P and auxiliary
Material.Described gibberellins and uniconazole P and adjuvant are mixed with preparation by the present invention, specifically, the special plant of described large spike Oryza sativa L.
Thing growth regulator includes:
The gibberellins of 0.5wt%～2.5wt%；
The uniconazole P of 0.5wt%～2.5wt%；
Balance of adjuvant.
Described large spike Oryza sativa L. plant growth regulator special more preferably includes:
The gibberellins of 1.5wt%；
The uniconazole P of 1.0wt%；
Balance of adjuvant.
In the present invention, described large spike Oryza sativa L. plant growth regulator special can be wettable powder, now, described
Adjuvant includes wetting agent, dispersant and farm chemical carrier precipitated calcium carbonate.
In the present invention, described wetting agent is pull open powder bx (sodium butylnaphthalenesulfonate), and its content is 5%；Described dispersant
For hk-2302, its content is 5%；Described precipitated calcium carbonate is farm chemical carrier, and its content is to supply 100%.
Present invention also offers a kind of preparation method of large spike Oryza sativa L. special plant growth regulating wettable powder, including
Following steps:
By gibberellins and uniconazole P mix homogeneously, obtain effective ingredient mixture；
By wetting agent, dispersant and precipitated calcium carbonate mix homogeneously, obtain adjuvant mixture；
By effective ingredient mixture and adjuvant mixture mix homogeneously, obtaining large spike Oryza sativa L. special plant growth regulating can
WP.
The large spike Oryza sativa L. special plant growth regulating composition that the present invention provides or plant growth regulator can be used for training
Educate large spike Oryza sativa L., gibberellins and uniconazole P synergism, " the intergranular top of Oryza sativa L. big (weight) fringe type kind (combination) can be adjusted
End advantage ", by the regulative mode of " killing richness to administer poor ", coordinates precocious " Superiors grains " with late flowering " Inferior grain " in contention
Contradiction during nutrient substance, helping " Inferior grain " to enter normal state of being in the milk, improving setting percentage and mass of 1000 kernel, thus improving Oryza sativa L.
Yield improving quality.
Specifically, the present invention provides large spike Oryza sativa L. special plant growth toner composition or plant growth regulator
Can be used by the way of foliar spray, Dressing date is 2～5 days after Oryza sativa L. beginning ear period.
When it is 2.5% wettable powder for effective ingredient (wherein gibberellins are 1.5%, and uniconazole P is 1.0%),
Can apply in Oryza sativa L. beginning fringe～full heading time, often per mu even spray 30 grams, amount of liquid medicine is 30～45 liters/mu, foliar spray.
The large spike Oryza sativa L. plant growth regulator special that the present invention provides has the advantage that
(1) application technique safety, does not induce disease；(2) acceleration is bloomed, accelerates grouting, maturation is done sth. in advance；It is (3) easy to use,
Spray once success in Oryza sativa L. beginning fringe～full heading time, can be mixed with acid agrichemical, do not increase labor cost；(4) benefit directly perceived is bright
Aobvious, if sentencing xenogenesis compared with the control, peasant is easily accepted by very much；(5) early rice applies " high temperature is compeled ripe " that can mitigate Oryza sativa L., and late rice is applied
With autumn cold stress can be mitigated, mitigate bag neck phenomenon；(6) improve brown rice yield, reduce chalk in vain, improve rice quality；(7) region is fitted
Ying Xingguang, is suitable for various rice varieties (or Hybrid Rice Combination) type, applicable transplanting rice or Direct-seeding Rice, applicable season morning, noon and afternoon rice
Make, be conventional measure.Test result indicate that, yield of brown rice not only can be improved by the plant growth regulator that the present invention provides
6%～12%, the exterior quality of rice is increased simultaneously, especially rice transparency is significantly increased, to chalky grain rate
Significantly reduce.
Specific embodiment
Below in conjunction with the subordinate list in the embodiment of the present invention, the technical scheme in the embodiment of the present invention is carried out clear, complete
Site preparation description is it is clear that described embodiment is only a part of embodiment of the present invention, rather than whole embodiments.It is based on
Embodiment in the present invention, it is every other that those of ordinary skill in the art are obtained under the premise of not making creative work
Embodiment, broadly falls into the scope of protection of the invention.
Embodiment 1
By the uniconazole P mix homogeneously of the gibberellins of 1.5 mass parts and 1 mass parts, obtain effective ingredient mixture；
The wetting agent sodium butylnaphthalenesulfonate of 5 mass parts, the dispersant hk-2302 of 5 mass parts and 87.5 mass parts are light
Matter Calcium Carbonate mix homogeneously, obtains adjuvant mixture；
By effective ingredient mixture and adjuvant mixture mix homogeneously, obtain wettable powder.
Embodiment 2
Tested according to the time shown in table 1, place and rice varieties: apply in the beginning fringe～full heading time of Oryza sativa L. and implement
Example 1 provide wettable powder, often per mu even spray 30 grams, amount of liquid medicine be 45 liters/mu, foliar spray.Result is referring to table 1, table 1
Middle uniconazole P is processed as 0.3 gram/acre of uniconazole P effective ingredient (i.e. the 1% of 30 g of formulation), and gibberellin treatment is red for 0.45 gram/acre
Mycin effective ingredient (i.e. the 1.5% of 30 g of formulation).
Table 1 rice application effect of increasing production
In table 1, square measure be mu, output unit be kg/acre.
As shown in Table 1, the plant growth regulator that embodiment 1 provides is applied in difference counties and cities of Zhejiang Province or different Oryza sativa L. product
Kind amount of increase in production 6%～12%.
Embodiment 3
To in embodiment 2 Jinhua Region plantation excellent No. 1 rice obtaining in middle Zhejiang and Fuyang City plantation spring excellent
The quality of 84 rice obtaining is detected, result is referring to table 2.
The impact to rice quality for table 2 plant growth regulator
As shown in Table 2, the large spike Oryza sativa L. plant growth regulator special that the present invention provides has to the exterior quality of rice
Improved, especially rice transparency is significantly increased, chalky grain rate is significantly reduced.
The above is only the preferred embodiment of the present invention it is noted that ordinary skill people for the art
For member, under the premise without departing from the principles of the invention, some improvements and modifications can also be made, these improvements and modifications also should
It is considered as protection scope of the present invention.
Claims (2)
1. application in cultivating large spike Oryza sativa L. for a kind of compositionss, described compositionss are made up of gibberellins and uniconazole P, described
The mass ratio of gibberellins and uniconazole P is 0.5～2.5:0.5～2.5.
2. application according to claim 1 is it is characterised in that described compositionss are used by the way of foliar spray.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510127906.4A CN104686530B (en) | 2015-03-24 | 2015-03-24 | Plant growth regulator special for big-panicle rice and preparation method and application thereof |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201510127906.4A CN104686530B (en) | 2015-03-24 | 2015-03-24 | Plant growth regulator special for big-panicle rice and preparation method and application thereof |
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| Publication Number | Publication Date |
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| CN104686530A CN104686530A (en) | 2015-06-10 |
| CN104686530B true CN104686530B (en) | 2017-01-18 |
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Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN106489978A (en) * | 2016-10-13 | 2017-03-15 | 广东中迅农科股份有限公司 | A kind of composition pesticide containing uniconazole P and Thidiazuron |
| CN113080193B (en) * | 2021-03-09 | 2021-11-16 | 湖南农业大学 | Composition for reducing chalkiness rate of rice and preparation method and application thereof |
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| CN1849877A (en) * | 2006-05-17 | 2006-10-25 | 金华市农业科学研究院 | Rice cultivation method |
| US20130244876A1 (en) * | 2012-03-14 | 2013-09-19 | Thorsten Jabs | Synergistic compositions comprising ethephon and saflufenacil or cyclanilide and saflufenacil |
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