CN110226447A - A kind of Exogenous gibberellic acid increasing fringe method of pepper - Google Patents
A kind of Exogenous gibberellic acid increasing fringe method of pepper Download PDFInfo
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- CN110226447A CN110226447A CN201910689737.1A CN201910689737A CN110226447A CN 110226447 A CN110226447 A CN 110226447A CN 201910689737 A CN201910689737 A CN 201910689737A CN 110226447 A CN110226447 A CN 110226447A
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- pepper
- gibberellic acid
- gibberellin
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- 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
- A01G17/00—Cultivation of hops, vines, fruit trees, or like trees
- A01G17/005—Cultivation methods
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- 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
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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
- A01N43/06—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
- 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
Abstract
The present invention relates to technical field of agricultural cultivation, in particular to the Exogenous gibberellic acid of a kind of pepper increases fringe method.This method are as follows: at the pepper main florescence, to pepper blade spraying Exogenous gibberellic acid, the concentration of Exogenous gibberellic acid is 20~100mg/L.Increase fringe method according to gibberellin of the present invention to be tested, it has verified to grow pepper under the processing of various concentration Exogenous gibberellic acid and ear by Exogenous gibberellic acid of the present invention increasing fringe method and all have a certain impact, the flower spike of new pumping is influenced bigger, spraying gibberellin can promote pepper to ear, it is preferable to leaf morphologies parameter effects such as the leaf areas and vane thickness for increasing pepper to apply 40-60mg/L gibberellin, it is not significant to pepper source Ye Guanghe, sucrose, starch, sucrose metabolizing enzymes activity influence to spray gibberellin.The present invention is to improve main florescence flower spike number to have established scientific basic, is of great significance to tune flower volume increase in optimization pepper production.
Description
Technical field
The present invention relates to technical field of agricultural cultivation, in particular to the Exogenous gibberellic acid of a kind of pepper increases fringe method.
Background technique
Pepper (Piper nigrum L.) is Piperaceae (Piperaceae) Piper (Piper) perennial woody climber
Plant is known as the good reputation of " king of fragrance ", is not only one of most important pungent crop of perfume in the world, while in medical value and industry
Play the part of important role in value aspect.Currently, the main base that Hainan has become for the production of China pepper, improves the production of pepper
The method of amount is also constantly being probed into, and flower spike number is the key factor for influencing yield.Pepper bud is mixed bud, and nutrition is raw
Long and reproductive growth carries out simultaneously, can repeatedly bloom within 1 year, and the main florescence in the annual 9-11 month, is carrying out the pepper florescence
It being found in the research that regulation and pepper fruits Characters on Yield influence, pepper fruit ear number and correlation with yield are maximum, so, pepper
Main florescence flower amount is the key factor for influencing yield.
Usual tune flower well stimulation is fertilising in production at present, suitable to apply nitrogen and promote the development of pepper flower spike,
Excessive fertilizers input leads to environmental pollution: Hainan rainy season 8-11 month pepper dose is annual dose 70%, is concentrated excessive
Fertilising leads to environmental pollution, can also aggravate the continuous cropping obstacle of perennial crop pepper, so that production of peppers reduces, economic life contracting
It is short.Excessive fertilization also runs counter to the great demand of China's new era --- realize agriculture Green Development.So being badly in need of seeking new
Regulation pepper, which blooms, increases the method for fringe, realizes the upgrading synergy in pepper cultivation management.
The bloom controlling mechanism of gibberellin is different in model plant and perennial woody plant, for example, in quasi- south
Find that gibberellin promotes plant to be changed from nutrient growth to reproductive growth in the research of mustard, but the gibberellin in mango and apple
It is to inhibit to bud differentiation.Enhancing gibberellin signal can promote plant Blooming, but gibberellin levels are excessively high also
Inhibit Flowering.In short-day plant, bloom the regulation of approach in default of the photoperiod, gibberellin pathway plays important
Role, become necessary.Currently, yet there are no the report using Exogenous gibberellic acid regulation pepper flower spike number.
Summary of the invention
In view of this, the present invention provides a kind of Exogenous gibberellic acids of pepper to increase fringe method.This method is in the main flower of pepper
The method that phase increases fringe using Exogenous gibberellic acid, changing traditional excessive fertilization leads to the Means To Increase Production of pollution, realizes green volume increase.
In order to achieve the above-mentioned object of the invention, the present invention the following technical schemes are provided:
The present invention provides a kind of Exogenous gibberellic acids of pepper to increase fringe method, this method are as follows: at the pepper main florescence, to pepper
Blade spraying Exogenous gibberellic acid, the concentration of Exogenous gibberellic acid are 20~100mg/L.
The existing method for increasing of pepper has limitation, and application nitrogen, phosphorus and potash fertilizer can increase production, and excessive fertilizers input adds
Acute environmental pollution, along with the special climatic environment in Hainan, pollution can only aggravate, and be contrary to Green Development；This application is badly in need of
Seek the efficient means of new increasing of main florescence fringe.The present invention is directed to the increasing fringe method defect of existing pepper, is understanding pepper in depth
On the basis of growth characteristics, in the main Spraying in the flowering stage gibberellin of pepper, spike number is improved, realizes volume increase.
The present invention is the influence for verifying Exogenous gibberellic acid regulation pepper source Leaf pattern and photosynthetic physiology to flower spike number, research
It analyzes under different Exogenous gibberellic acid concentration, the main florescence different bearing stage flower spike number of pepper, fully expanded leaves photosynthesis, leaf
Chlorophyll contents, the accumulation of sugarcane sugar and starch and the variation of Leaf pattern index.To be increased in production using technical measures appropriate
Hua Liang, improves production of peppers, and Promoting Industrial Green Development provides practical theoretical direction.
Pepper is short-day plant, and the application research finds that appropriate light intensity can promote pepper blade endogenous gibberellins content
Increase, increases pepper flower spike number.So gibberellin pathway and Photosynthetic metabolites are related, research gibberellin and light
Product synergistic effect regulation pepper flower spike number is closed, suitable gibberellin concentration is screened, to be arranged in production using technology appropriate
Promotion is applied into fringe, high yield and high quality pepper is obtained and practical theoretical direction is provided.
Preferably, the concentration of Exogenous gibberellic acid is 30~70mg/L.
Preferably, the concentration of Exogenous gibberellic acid is 40~60mg/L.
It is highly preferred that the concentration of Exogenous gibberellic acid is 60mg/L.
In the present invention, Exogenous gibberellic acid increases fringe method for regulating and controlling the number of different developmental phases pepper flower spike.
Preferably, different developmental phases pepper flower spike is new pumping to 8cm flower spike.
Preferably, different developmental phases pepper flower spike is new pumping, 2cm, 5cm, 8cm flower spike.
Preferably, different developmental phases pepper flower spike is new pumping, 2cm, 5cm flower spike.
In the present invention, the pepper main florescence is September to November.
Preferably, pepper is that heat draws No. 1 pepper.
The present invention provides a kind of Exogenous gibberellic acids of pepper to increase fringe method, this method are as follows: at the pepper main florescence, to pepper
Blade spraying Exogenous gibberellic acid, the concentration of Exogenous gibberellic acid are 20~100mg/L.The technical effect that the present invention has are as follows:
Increase fringe method according to gibberellin of the present invention to be tested, increases fringe method by Exogenous gibberellic acid of the present invention and verified not
It all has a certain impact with growing and earing to pepper under the processing of concentration Exogenous gibberellic acid, the influence of the flower spike of new pumping is compared
Greatly, spraying gibberellin can promote pepper to ear, and application 40-60mg/L gibberellin is to the leaf area and vane thickness for increasing pepper
Equal leaf morphologies parameter effect is preferable, sprays gibberellin to pepper source Ye Guanghe, sucrose, starch, sucrose metabolizing enzymes activity
It influences not significant.Pepper main florescence suitable gibberellin concentration range is finally developed, is established to improve main florescence flower spike number
Scientific basic is of great significance to adjusting flower to increase production in optimization pepper production.
Detailed description of the invention
Fig. 1 shows that (A shows that new pumping flower spike number, B are shown to various concentration Exogenous gibberellic acid to the main florescence different bearing stage of pepper
2cm flower spike number, C show 5cm flower spike number, and D shows 8cm flower spike number) influence of flower spike number, it is the processing compareed that T1, which is with clear water,
T2, T3, T4, T5 respectively represent the gibberellin concentration processing of 20,40,60,100mg/L；Lowercase represents not above histogram
With significant difference between processing, n.s. is represented between different disposal without significant difference；
Fig. 2 shows various concentration Exogenous gibberellic acid to pepper source leaf photosynthetic rate (Pn), stomatal conductance (Cond), intercellular dioxy
Change the influence of concentration of carbon (Ci), transpiration rate (Tr)；
Fig. 3 shows influence of the various concentration Exogenous gibberellic acid to pepper source leaf SPAD value.
Specific embodiment
The invention discloses a kind of Exogenous gibberellic acids of pepper to increase fringe method, and those skilled in the art can use for reference in this paper
Hold, is suitably modified realization of process parameters.In particular, it should be pointed out that all similar substitutions and modifications are to those skilled in the art
For be it will be apparent that they are considered as being included in the present invention.Method and application of the invention, which has passed through, preferably to be implemented
Example is described, related personnel obviously can not depart from the content of present invention, in spirit and scope to method described herein and
Using being modified or appropriate changes and combinations, carry out implementation and application the technology of the present invention.
The Exogenous gibberellic acid of pepper provided by the invention increases in fringe method seed, hormone, instrument or reagent used can be by
Market is bought.
Below with reference to embodiment, the present invention is further explained:
Embodiment 1
In the pepper experiment and demonstration base (18 ° of 1'N, 110 ° of 13'E) of Institute of Spices and Beverage
Inside tested.The present invention with clear water be control (T1), using four kind 20,40,60,100mg/L (T2-T5) Exogenous gibberellic acid it is dense
Degree carries out main florescence pepper to spray processing, and main Spraying in the flowering stage gibberellin in 2019, it is almost the same that 3 plants of growing ways are chosen in each processing
Plant (spray gibberellin before all adopt pepper flower spike remove), every plant is used as a repetition, needs Quan Fang when spraying gibberellin
The blade face for spraying pepper of position starts stream drop up to blade, and it is consistent respectively to handle other management measures.Should be noted that when spraying should not
Other pepper plant are polluted, after processing one month, count the flower spike number that flower spike length is new pumping, 2cm, 5cm and 8cm respectively
Mesh.10d measures photosynthetic parameters, chlorophyll content, leaf morphology index, the 10d after spraying gibberellin after spraying gibberellin
Morning 9:00~11:30 acquisition flower spike length be the blade of next leaf position of leaf position where 2cm stability, i.e., second
Leaf position stability, corresponding two leaves of 25d acquisition 5cm and 8cm flower spike, study its sucrose and content of starch after spraying；
The influence of the different regulation of Exogenous gibberellic acid concentration pepper source Leaf patterns and photosynthetic physiology to pepper flower spike number is verified as in production
Increase flower spike number using technical measures appropriate, improve production of peppers, Promoting Industrial Green Development provides practical theory and refers to
It leads.
The present invention, to pepper fertigation and Pruning and rectifying, compares several processing to pepper flower spike using Routine Management method
Number, Leaf pattern change and the influence of photosynthetic capacity.Result of study is as follows:
Influence of the 1.1 various concentration Exogenous gibberellic acids to pepper different bearing stage flower spike number
Gibberellin is sprayed to have a significant impact pepper different bearing stage flower spike number.From gibberellin to new pumping flower spike number
The research of influence will increase pepper newly heading amount it can be found that spraying gibberellin, with gibberellin concentration increase (20mg/L,
40mg/L, 60mg/L, 100mg/L), flower spike number has increased separately 1.7,2.7,3.7,5.5 times, wherein at 100mg/L concentration
Under reason, new pumping flower spike number dramatically increases (Figure 1A)；It is found in the research that gibberellin influences 2 centimetres of flower spike numbers, with
Gibberellin concentration increase, flower spike number shows as first increasing and reduce afterwards, and under T3-T5 processing, flower spike number is dramatically increased, wherein
The flower spike number of T4 processing is most, increases 4.9 times (Figure 1B) relative to control；For the flower spike of 5 centimetres of stages of development, flower spike number
Mesh is also as the increase presentation of gibberellin concentration first increases the trend subtracted afterwards, and under T4 processing, flower spike number is most, increases compared to control
86% (Fig. 1 C) is added；It is found in spraying the research that gibberellin influences 8 centimetres of flower spike numbers, relative to control, T4 processing
Significantly increase 2.4 times of flower spike number (Fig. 1 D).In conclusion the processing of 60mg/L gibberellin concentration promotes effect to flower spike number
Maximum, 40mg/L processing are taken second place.
Influence of the 1.2 various concentration Exogenous gibberellic acids to pepper Inflorescence development different phase leaf morphology
1.2.1 to the influence of the corresponding pepper source Leaf pattern of 2cm flower spike
As shown in Table 1, compared with the control, with the raising of gibberellin concentration, pepper leaf is long to have increased separately 10%,
18%, 19%, 8%, wherein T3 and T4 processing reaches the level of signifiance with contrast difference；Leaf width increases 11%, 13%, 31%,
5%, wherein T4 processing reaches the level of signifiance with contrast difference；Leaf area increases 20%, 31%, 58%, 11%, T4 processing with it is right
The level of signifiance is reached according to difference；Relative to control, the vane thickness of T3 and T4 processing increases 10% and 14% than control respectively, but
Difference is not significant.So spraying promotion of the gibberellin concentration processing of 60mg/L to the leaf length, leaf width, leaf area of pepper blade
Effect is best, and the gibberellin concentration processing of 40mg/L is taken second place.
Influence of the different external source concentration gibberellin of table 1 to the corresponding pepper source Leaf pattern of 2cm flower spike
| Processing | Leaf is long (cm) | Leaf width (cm) | Leaf area (cm2) | Leaf is thick |
| T1 | 97.53c | 44.74b | 2889.82b | 0.5a |
| T2 | 107.09bc | 49.54b | 3397.56b | 0.53a |
| T3 | 114.63ab | 50.48ab | 3725.71ab | 0.57a |
| T4 | 126.28a | 58.59a | 4517.01a | 0.56a |
| T5 | 105.27bc | 47.16b | 3155.70b | 0.52a |
Note: significant difference (P < 0.05) between subsequent different lowercase expression processing is respectively arranged, numerical value is different disposal
Average value, similarly hereinafter.
1.2.2 to the influence of the corresponding pepper source Leaf pattern of 5cm flower spike
As shown in table 2, compared with the control, under T2-T4 processing, the leaf length of the corresponding pepper blade of 5cm flower spike is increased separately
13%, 24%, 11%, wherein T3 processing reaches the level of signifiance with contrast difference；Under T2-T4 processing, pepper leaf width is significant respectively to be increased
Add 19%, 24%, 26%；Under T2-T4 processing, leaf area significantly increases 43%, 67%, 41% respectively.And high concentration
T5 processing is relative to control, and leaf length, leaf width, the leaf area of pepper source leaf reduce 6%, 8%, 4% respectively, but difference is not shown
It writes.So spraying the gibberellin of 40mg/L to the leaf length, leaf width, the facilitation effect of leaf area of the corresponding pepper source leaf of 5cm flower spike most
Good, 60mg/L processing is taken second place.
Influence of the different external source concentration gibberellin of table 2 to the corresponding pepper source Leaf pattern of 5cm flower spike
| Processing | Leaf is long (cm) | Leaf width (cm) | Leaf area (cm2) | Leaf is thick |
| T1 | 102.45bc | 44.26b | 2759.95b | 0.53a |
| T2 | 115.28ab | 52.84a | 4001.51a | 0.50a |
| T3 | 127.21a | 55.71a | 4492.30a | 0.53a |
| T4 | 113.30abc | 55.06a | 4103.25a | 0.51a |
| T5 | 96.43c | 40.74b | 2672.77b | 0.51a |
1.2.3 to the influence of the corresponding pepper source Leaf pattern of 8cm flower spike
Influence discovery of the Study of Exogenous gibberellin to the corresponding pepper source Leaf pattern of 8cm flower spike, compared with the control, at T2-T4
Under reason, accordingly leaf length, leaf width and the leaf area of two blades all increased 8 centimetres of flower spikes, but not significant, and T5 processing reduces
These three indexs, but it is also not significant；Leaf thickness is not significantly different between processing.All in all, 60mg/L processing is to pepper blade
The facilitation effect of morphological index is best (table 3).
The different external source concentration gibberellin of table 3 correspond to the influence of pepper source Leaf pattern to 8cm flower spike
| Processing | Leaf is long (cm) | Leaf width (cm) | Leaf area (cm2) | Leaf is thick |
| T1 | 110.72ab | 54.09ab | 3971.71ab | 0.54a |
| T2 | 121.48ab | 63.75ab | 5150.30a | 0.55a |
| T3 | 117.49ab | 62.51ab | 5065.28a | 0.53a |
| T4 | 129.59a | 64.80a | 5336.53a | 0.59a |
| T5 | 104.79b | 44.39b | 2980.03b | 0.57a |
1.3 various concentration Exogenous gibberellic acids are on the photosynthetic influence of pepper source leaf
Influence of the Study of Exogenous gibberellin to pepper source leaf photosynthetic capacity, the results showed that various concentration processing is to period Hu
The photosynthetic rate (Pn) of green pepper source leaf, stomatal conductance (Cond), intercellular gas concentration lwevel (Ci) do not have significant impact；With compare
It compares, the transpiration rate (Tr) in the T2-T4 processing lower period significantly increases 5%~38%, so, spraying gibberellin may be right
Pepper absorbs and transport soil nutrient has facilitation.(Fig. 2).
Influence of the 1.4 various concentration Exogenous gibberellic acids to pepper blade SPAD value
The content and plant photosynthetic capacity of leaf chlorophyll have close ties, and under normal circumstances, chlorophyll content increases, light
Conjunction ability can also enhance therewith.From figure 3, it can be seen that pepper leaf can be improved in the gibberellin for spraying 60mg/L relative to control
The chlorophyll content of piece, this is it could also be possible that promote the increased number of reason of pepper flower spike.
It can be seen that by implementing the solution of the present invention relative to clear water processing, under the premise of not influencing pepper growing way,
It sprays certain density Exogenous gibberellic acid and increases flower spike number, new pumping flower spike number increases with the increase of gibberellin concentration
Add, increase 1.7-5.5 times, 2 centimetres, 5 centimetres of flower spike numbers can all increase with the increase of gibberellin, and the processing of 20mg/L increases
Add unobvious, Exogenous gibberellic acid is most significant with the treatment effect of 40-60mg/L, and the present invention is by using the side for spraying gibberellin
Method, so that phase pepper flower spike number is dramatically increased compared to clear water control.
The present invention sprays gibberellin technology using young age pepper as test material, by using field, has studied Exogenous gibberellic acid pair
The influence of pepper main florescence fully expanded leaves morphological index, photosynthesis and chlorophyll content and flower spike number, it is red to probe into external source
Mycin regulates and controls the influence of leaf morphology and photosynthetic physiology to pepper flower spike number, the results showed that, it sprays gibberellin and Leaf pattern is referred to
The effect of being obviously improved is indicated, this may be to promote the increased number of key regulator of pepper flower spike, wherein spraying 40-60mg/L
Gibberellin processing significantly increases leaf area and leaf thickness that 2 centimetres, 5 centimetres and 8 centimetres flower spikes correspond to pepper source leaf, this just has
Effect increase photosynthate total amount, furthermore under gibberellin treatment conditions the promotion of blade transpiration and chlorophyll test value to photosynthetic energy
Power also has facilitation, these are all the regulatory factors for increasing pepper flower spike number.So Study of Exogenous gibberellin regulates and controls source leaf
Form and photosynthetic physiology improve production of peppers, Promoting Industrial green hair to increase spike number using technical measures appropriate in production
Exhibition provides practical theoretical direction.
The above is only a preferred embodiment of the present invention, it is noted that for the ordinary skill people of the art
For member, various improvements and modifications may be made without departing from the principle of the present invention, these improvements and modifications are also answered
It is considered as protection scope of the present invention.
Claims (10)
1. a kind of Exogenous gibberellic acid of pepper increases fringe method, which is characterized in that at the pepper main florescence, to pepper blade spraying external source
Gibberellin, the concentration of the Exogenous gibberellic acid are 20~100mg/L.
2. Exogenous gibberellic acid according to claim 1 increases fringe method, which is characterized in that the concentration of the Exogenous gibberellic acid is
30~70mg/L.
3. Exogenous gibberellic acid according to claim 1 increases fringe method, which is characterized in that the concentration of the Exogenous gibberellic acid is
40~60mg/L.
4. Exogenous gibberellic acid according to claim 1 increases fringe method, which is characterized in that the concentration of the Exogenous gibberellic acid is
60mg/L。
5. Exogenous gibberellic acid according to claim 1 increases fringe method, which is characterized in that the Exogenous gibberellic acid increases fringe method
For regulating and controlling the number of different developmental phases pepper flower spike.
6. Exogenous gibberellic acid according to claim 5 increases fringe method, which is characterized in that the different developmental phases pepper
Fringe is new pumping to 8cm flower spike.
7. Exogenous gibberellic acid according to claim 6 increases fringe method, which is characterized in that the different developmental phases pepper
Fringe is new pumping, 2cm, 5cm, 8cm flower spike.
8. Exogenous gibberellic acid according to claim 7 increases fringe method, which is characterized in that the different developmental phases pepper
Fringe is new pumping, 2cm, 5cm flower spike.
9. Exogenous gibberellic acid according to claim 1 increases fringe method, which is characterized in that the pepper main florescence be September extremely
November.
10. Exogenous gibberellic acid according to any one of claim 1 to 9 increases fringe method, which is characterized in that the pepper is
Heat draws No. 1 pepper.
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110972751A (en) * | 2019-11-15 | 2020-04-10 | 河北农业大学 | Application of gibberellin in improving walnut shell thickness and suture tightness |
| CN113767774A (en) * | 2021-08-18 | 2021-12-10 | 广州花卉研究中心 | Application of gibberellin in promoting increase of quantity, growth and quality of spina in Prinsepia utilis Royle |
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