CN102388756A - Method for controlling excessive growth of cucumber seedlings by using light-emitting diode (LED) light source - Google Patents
Method for controlling excessive growth of cucumber seedlings by using light-emitting diode (LED) light source Download PDFInfo
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- CN102388756A CN102388756A CN2011102120432A CN201110212043A CN102388756A CN 102388756 A CN102388756 A CN 102388756A CN 2011102120432 A CN2011102120432 A CN 2011102120432A CN 201110212043 A CN201110212043 A CN 201110212043A CN 102388756 A CN102388756 A CN 102388756A
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Abstract
The invention discloses a method for controlling excessive growth of cucumber seedlings by using a light-emitting diode (LED) light source and belongs to the field of plant cultivation. The method comprises the steps of: when the cotyledons of seedlings come out of soil, supplementing light through LED plant growth lamps, wherein the light supplementing time is 8-16 hours per day and the intensity of supplemented light is 90 to 240mu mol.m<-2>.s<-1>; and when three leaves and one core grow out of each seedling, stopping supplementing the light. The method for controlling the excessive growth of the cucumber seedlings by using the LED light source has the advantages that the defects of the traditional water-controlled seedling raising method and the method of using growth inhibitors to regulate the excessive growth of the seedlings are overcome, the effect of the red and blue LED light source capable of controlling the excessive growth of plants is remarkable, the method is safe and environmental-friendly, the service life of the LED lamps is long and the LED lamps are economic and affordable.
Description
Technical field
The present invention relates to a kind of plant cultivation method, relate in particular to a kind of method of utilizing the excessive growth of led light source control cucumber seedling.
Background technology
Cucumber is the main vegetable crop of China's facility cultivation, also is a kind of global important vegetables.China gourd vegetables is mainly adopted seedling raising and transplanting.In the facility seedling raising process, shading factors such as winter-spring season cladding material and dust can make illumination deficiency in the facility, and overcast and rainy as if running into continuously particularly at southern area, foot phenomenon is more not serious in illumination in greenhouse, the booth.In the summer seedling raising process, be to reduce temperature, often adopt the sunshade net to cover, also be prone to cause low light level adverse circumstance.Cucumber is a happiness light crop, and long term growth can cause seedling excessive growth in low light level adverse circumstance.It is bad that excessive growth is nourished and grown cucumber, and flower bud differentiation is slow, and the bud quality is poor, and fruit drop is serious, and the fructescence postpones, and finally has influence on yield and quality.Therefore, overcoming the excessive growth problem that gourd vegetables is grown seedlings, is to improve the quality of seedlings, and then one of the key technology of raising output, quality and benefit and effective way.
The tradition seedling growing process adopts the control rice seedling on watered bed mostly and uses the excessive growth of growth inhibitor control rice shoot, but misoperation is prone to cause stiff seedling, and effect is unstable, also can cause environmental pollution.
Illumination is to influence the main limiting factor that green plants grows, and light intensity, photoperiod and light quality all have regulating and controlling effect to growth and development of plant, morphogenesis, photosynthesis and metabolism.Utilize the light control technique to cultivate the new method that be an environmental protection strong sprout.At present, the artificial light source that in facility is grown seedlings, uses has ordinary incandescent lamp, high-pressure sodium lamp, high-pressure mercury lamp etc., and these light sources are mostly because the spectrum broad, calorific value is big, energy consumption is high, makes its suitable the righttest light source as the high density factorial seedling growth.
The LED light fixture has characteristics such as light quality is pure, spectrum is narrower, compact conformation, safety and environmental protection; Belong to cold light source, the illumination heating is few, can place from the very near place of plant and can not burn plant; The availability of light is very high, can be used for the three-dimensional combined system of multilayer cultivation.The light wavelength scope that plant generally can be experienced is between 280～800nm; But the absorption to light is not full wave; Be that the blue light of 400～520nm and ruddiness that wavelength is 610～720nm are absorbed light and most effective the most easily by photosynthetic pigment wherein with wavelength.Therefore adopt the excessive growth of controlled plants such as red blue composite LED.
Summary of the invention
Goal of the invention: the purpose of this invention is to provide a kind of method of utilizing the excessive growth of led light source control cucumber seedling, can effectively control the excessive growth phenomenon that cucumber seedling causes in low light environment, improve seedling quality.
Technical scheme: for realizing above-mentioned purpose; A kind of method of led light source control cucumber seedling excessive growth of utilizing of the present invention adopts: when seedling cotyledon is unearthed, adopt the LED plant growth lamp to carry out light filling; The light filling time is 8～16h every day, and light filling intensity is 90～240 μ molm
-2S
-1
As further optimization of the present invention, the said light filling time is 12h every day, and said light filling intensity is 180 μ molm
-2S
-1
The present invention is primarily aimed at cucumber might cause excessive growth in low light environment, but under natural daylight, still can adopt 90 μ molm
-2S
-1The LED plant growth lamp carry out light filling.
When seedling grows to planting-stock age, when general cultivation through about 28 days grows 3 leaves, 1 heart, stop light filling.But in the interim overcast and rainy quality that still can carry out light filling with raising cucumber nursery stock of subsequent growth.
Said LED plant growth lamp is 4～8 red and blue LED plant growth lamps.
Said LED plant growth lamp is located on the high support of cucumber seedling canopy 20cm, and said support can be regulated height.Along with growth of seedlings, the highly flexible of support is regulated, and kept the uniformity of pharosage.
Beneficial effect: a kind of method of led light source control cucumber seedling excessive growth of utilizing of the present invention overcomes tradition control rice seedling on watered bed and the defective of using the excessive growth of growth inhibitor regulation and control seedling; Adopt the red and blue LED light source effect of controlled plant excessive growth remarkable; Safety and environmental protection; And the long service life of LED lamp, economic and practical.
Description of drawings
Fig. 1 is the comparison diagram in kind of different group cucumber seedling growth situation in the Test Example.
Embodiment
Below in conjunction with accompanying drawing the present invention is done explanation further.
Embodiment 1
Adopt container nursery; In the cave dish that is seeded in 72 or 50 holes after the cucumber seeds vernalization; Seedling medium adopts vermiculite, the peat composed of rotten mosses, perlite to prepare by 2: 1: 1 volume ratios successively, carries out seedling management by conventional method, waters to execute balanced natritive liquid corresponding nutrient is provided; The LED plant growth lamp is located on the high support of cucumber seedling canopy 20cm, and said support can be regulated height.Along with growth of seedlings, the highly flexible of support is regulated, and kept the uniformity of pharosage.
When seedling cotyledon is unearthed, adopt 4 red and blue LED plant growth lamps to carry out light filling, wherein the light filling time is 12h every day, and light filling intensity is 90 μ molm
-2S
-1When seedling grows to 3 leaves, 1 heart, stop light filling.
Embodiment 2
Adopt container nursery; In the cave dish that is seeded in 72 or 50 holes after the cucumber seeds vernalization; Seedling medium adopts vermiculite, the peat composed of rotten mosses, perlite to prepare by 2: 1: 1 volume ratios successively, carries out seedling management by conventional method, waters to execute balanced natritive liquid corresponding nutrient is provided; The LED plant growth lamp is located on the high support of cucumber seedling canopy 20cm, and said support can be regulated height.Along with growth of seedlings, the highly flexible of support is regulated, and kept the uniformity of pharosage.
When seedling cotyledon is unearthed, adopt 8 red and blue LED plant growth lamps to carry out light filling, wherein the light filling time is 12h every day, and light filling intensity is 180 μ molm
-2S
-1When seedling grows to 3 leaves, 1 heart, stop light filling.
Embodiment 3
Adopt container nursery; In the cave dish that is seeded in 72 or 50 holes after the cucumber seeds vernalization; Seedling medium adopts vermiculite, the peat composed of rotten mosses, perlite to prepare by 2: 1: 1 volume ratios successively, carries out seedling management by conventional method, waters to execute balanced natritive liquid corresponding nutrient is provided; The LED plant growth lamp is located on the high support of cucumber seedling canopy 20cm, and said support can be regulated height.Along with growth of seedlings, the highly flexible of support is regulated, and kept the uniformity of pharosage.
When seedling cotyledon is unearthed, adopt 8 red and blue LED plant growth lamps to carry out light filling, wherein the light filling time is 8h every day, and light filling intensity is 240 μ molm
-2S
-1When seedling grows to 3 leaves, 1 heart, stop light filling.
Embodiment 4
Adopt container nursery; In the cave dish that is seeded in 72 or 50 holes after the cucumber seeds vernalization; Seedling medium adopts vermiculite, the peat composed of rotten mosses, perlite to prepare by 2: 1: 1 volume ratios successively, carries out seedling management by conventional method, waters to execute balanced natritive liquid corresponding nutrient is provided; The LED plant growth lamp is located on the high support of cucumber seedling canopy 20cm, and said support can be regulated height.Along with growth of seedlings, the highly flexible of support is regulated, and kept the uniformity of pharosage.
When seedling cotyledon is unearthed, adopt 4 red and blue LED plant growth lamps to carry out light filling, wherein the light filling time is 16h every day, and light filling intensity is 900 μ molm
-2S
-1When seedling grows to 3 leaves, 1 heart, stop light filling.
Test Example
With being seeded in after the cucumber seeds vernalization in the dish of cave; Seedling medium is formulated according to 2: 1: 1 volume ratios successively with vermiculite, the peat composed of rotten mosses, perlite; Water and execute balanced natritive liquid adequate nutrients is provided; Carry out seedling management according to conventional method, cucumber seedling is divided into 5 groups carries out check experiment, as shown in table 1:
The design of table 1 group
Wherein natural light intensity is 1000～1200 μ molm
-2S
-1, the intensity of light source that the low light intensity simulation is overcast and rainy adopts black sunshade net to be overlying on the top of corresponding group cucumber seedling; If there is the LED plant growth lamp to carry out light filling; The LED lamp is 4～8 red and blue LED plant growth lamps, is located at sunshade side off the net, and keeps from the high height of cucumber seedling canopy 20cm.Because generally there is the rainy weather about 7 days the cucumber seedling phase (in about 28 days), thus among the Tck time of overcast and rainy light filling be 7 days.Light filling time every day is 12 hours (6:00～18:00).Nursery stage finishes when treating that cucumber seedling grows to 3 leaves, 1 heart, measures growth of seedlings, physical signs, shown in table 2, table 3:
Table 2 red and blue LED light source light filling is to the influence of cucumber seedling growth index
Table 3 red and blue LED light source light filling is to the influence of cucumber seedling quality
Table 4 red and blue LED light source light filling is to the influence of cucumber seedling photosynthetic pigment content
Table 5 red and blue LED light source light filling is to the influence of cucumber seedling physical signs
According to table 2, table 3, and combine Fig. 1 to find out: to utilize the red and blue LED light source that cucumber seedling is carried out light filling and can obviously control cucumber seedling excessive growth, and improve seedling quality.Specifically, (T0) seedling plant height, hypocotyl length are significantly higher than natural daylight (CK) under the low light level, stem thick with the dry weight reduction, specific leaf weight, root/shoot ratio, G value and strong sprout index significantly reduce, rice shoot excessive growth is serious, quality obviously descends.Additional red and blue LED plant growth lamp carries out light filling seedling excessive growth is had remarkable inhibitory action.Compare with T0, T1 and the illumination of two kinds of intensity red and blue LEDs of T2 are penetrated all and can significantly be reduced plant height, hypocotyl length, increase that stem is thick, dry weight, specific leaf weight, root/shoot ratio and strong sprout index, improve the quality of seedlings, wherein to replenish 180 μ molm
-2S
-1Red and blue LED light filling better effects if.Compare with the contrast of CK, meet overcast and rainy additional red and blue LED light, the seedling plant height significantly reduces, and strong sprout, index raise, and helps seedling growth and grows.
Can find out that according to table 4 compare with the CK contrast, excessive growth seedling chlorophyll a, chlorophyll b, chlorophyll (a+b) content and chlorophyll a/b all significantly reduce under the T0, but chlorophyll b content there is certain rising.After cucumber seedling carried out the red and blue LED light filling, photosynthetic pigment content raise with the increase of light filling intensity gradually.With additional 90 μ molm
-2S
-1Intensity red and blue LED light is compared, 180 μ molm
-2S
-1Intensity red and blue LED light filling is to improving the pigment content more remarkable effect.Compare and to draw through CK and Tck, meet overcast and rainy light filling and can significantly improve content of carotenoid in the seedling leaves.
Can find out according to table 5, utilize red and blue LED light source light filling to help normally carrying out of cucumber seedling physiological metabolism.Compare with the CK contrast, seedlings root vigor and soluble protein content significantly reduce under the T0, and MDA content and plasma membrane passing through property relatively significantly improve.Red and blue LED plant growth lamp light filling can significantly improve down the root system vigor and the soluble protein content of cucumber seedling, reduced blade MDA content and plasma membrane and passed through property relatively, has alleviated the low light level that the excessive growth seedling receives and has coerced the physiology that causes and injure.Wherein, 180 μ molm
-2S
-1The red and blue LED light filling of intensity is more obvious to the remission effect of coercing.Meet overcast and rainy light filling and can significantly reduce seedling MDA content.
The present invention can make growth of seedling more healthy and stronger through lasting light filling under the overcast and rainy light filling and the low light level; But those of ordinary skill in the art is to be understood that; Can make various changes to it in form and details, and the spirit and scope of the present invention that do not depart from appended claims and limited.Like change, to the change of light filling time and intensity to scalable growth frame length parameter.For the seedling excessive growth that high temperature, high humidity or hormone improper use cause, because red blue light is grown to phytomorph and the regulating and controlling effect of morphogenesis, this invention also has certain effect to the excessive growth that causes under these conditions.
Claims (5)
1. method of utilizing the excessive growth of led light source control cucumber seedling, it is characterized in that: when seedling cotyledon is unearthed, adopt the LED plant growth lamp to carry out light filling, the light filling time is 8 ~ 16h every day, and light filling intensity is 90 ~ 240 μ molm
-2S
-1
2. the method for utilizing the excessive growth of led light source control cucumber seedling according to claim 1, it is characterized in that: the said light filling time is 12h every day, said light filling intensity is 180 μ molm
-2S
-1
3. the method for utilizing the excessive growth of led light source control cucumber seedling according to claim 1 is characterized in that: when seedling grows to planting-stock age, stop light filling.
4. the method for utilizing the excessive growth of led light source control cucumber seedling according to claim 1, it is characterized in that: said LED plant growth lamp is 4 ~ 8 red and blue LED plant growth lamps.
5. the method for utilizing the excessive growth of led light source control cucumber seedling according to claim 1, it is characterized in that: said LED plant growth lamp is located on the high support of cucumber seedling canopy 20cm, and said support can be regulated height.
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| Application Number | Priority Date | Filing Date | Title |
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| CN2011102120432A CN102388756A (en) | 2011-07-27 | 2011-07-27 | Method for controlling excessive growth of cucumber seedlings by using light-emitting diode (LED) light source |
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| CN2011102120432A CN102388756A (en) | 2011-07-27 | 2011-07-27 | Method for controlling excessive growth of cucumber seedlings by using light-emitting diode (LED) light source |
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| CN102388756A true CN102388756A (en) | 2012-03-28 |
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Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103109702A (en) * | 2013-02-25 | 2013-05-22 | 中国水稻研究所 | Method for controlling rice seedling growth by optical spectrum, and raising spectrum regulating appliance and equipment |
| CN105875228A (en) * | 2016-04-29 | 2016-08-24 | 华南农业大学 | Method for adopting LED lamp for supplementing cucumber seedlings with light |
| CN106212070A (en) * | 2016-07-29 | 2016-12-14 | 广东轻工职业技术学院 | A kind of method utilizing LED time delay light filling to promote seedling cultivation of rice |
| CN109496714A (en) * | 2018-11-08 | 2019-03-22 | 中国农业大学 | Inhibit the method for cucumber hypocotyl elongation under a kind of high temperature |
| CN111448905A (en) * | 2020-04-30 | 2020-07-28 | 上海市农业科学院 | Light-controlled tomato seedling method and illumination equipment |
| CN111448904A (en) * | 2020-04-30 | 2020-07-28 | 上海市农业科学院 | Light-control cucumber seedling raising method and illumination equipment |
| CN113179788A (en) * | 2021-05-21 | 2021-07-30 | 中国科学院长春应用化学研究所 | Luminous environment regulation and control method for promoting cucumber growth |
| CN115125252A (en) * | 2021-03-19 | 2022-09-30 | 南京农业大学 | Application and method of CsSH1 gene in improvement of excessive growth resistance of cucumber in seedling stage |
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| 唐大为 等: "LED光源不同光质对黄瓜幼苗生长及生理生化特性的影响", 《甘肃农业大学学报》 * |
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Cited By (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103109702A (en) * | 2013-02-25 | 2013-05-22 | 中国水稻研究所 | Method for controlling rice seedling growth by optical spectrum, and raising spectrum regulating appliance and equipment |
| CN103109702B (en) * | 2013-02-25 | 2014-12-10 | 中国水稻研究所 | Method for controlling rice seedling growth by optical spectrum, and raising spectrum regulating appliance and equipment |
| CN105875228A (en) * | 2016-04-29 | 2016-08-24 | 华南农业大学 | Method for adopting LED lamp for supplementing cucumber seedlings with light |
| CN106212070A (en) * | 2016-07-29 | 2016-12-14 | 广东轻工职业技术学院 | A kind of method utilizing LED time delay light filling to promote seedling cultivation of rice |
| CN106212070B (en) * | 2016-07-29 | 2021-11-12 | 广东轻工职业技术学院 | Method for promoting rice seedling raising by using LED delayed supplementary lighting |
| CN109496714A (en) * | 2018-11-08 | 2019-03-22 | 中国农业大学 | Inhibit the method for cucumber hypocotyl elongation under a kind of high temperature |
| CN111448905A (en) * | 2020-04-30 | 2020-07-28 | 上海市农业科学院 | Light-controlled tomato seedling method and illumination equipment |
| CN111448904A (en) * | 2020-04-30 | 2020-07-28 | 上海市农业科学院 | Light-control cucumber seedling raising method and illumination equipment |
| CN115125252A (en) * | 2021-03-19 | 2022-09-30 | 南京农业大学 | Application and method of CsSH1 gene in improvement of excessive growth resistance of cucumber in seedling stage |
| CN113179788A (en) * | 2021-05-21 | 2021-07-30 | 中国科学院长春应用化学研究所 | Luminous environment regulation and control method for promoting cucumber growth |
| CN113179788B (en) * | 2021-05-21 | 2023-12-19 | 中国科学院长春应用化学研究所 | Light environment regulation and control method for promoting cucumber growth |
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Application publication date: 20120328 |