CN110249833B - Method for improving yield and quality of leaf vegetables in plant factory by low-dose long-wave ultraviolet light - Google Patents
Method for improving yield and quality of leaf vegetables in plant factory by low-dose long-wave ultraviolet light Download PDFInfo
- Publication number
- CN110249833B CN110249833B CN201910629301.3A CN201910629301A CN110249833B CN 110249833 B CN110249833 B CN 110249833B CN 201910629301 A CN201910629301 A CN 201910629301A CN 110249833 B CN110249833 B CN 110249833B
- Authority
- CN
- China
- Prior art keywords
- uva
- ultraviolet light
- wave ultraviolet
- leaf vegetables
- quality
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Active
Links
Images
Classifications
-
- 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
- A01G7/04—Electric or magnetic or acoustic treatment of plants for promoting growth
- A01G7/045—Electric or magnetic or acoustic treatment of plants for promoting growth with electric lighting
-
- 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
- A01G7/04—Electric or magnetic or acoustic treatment of plants for promoting growth
-
- 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
- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P60/00—Technologies relating to agriculture, livestock or agroalimentary industries
- Y02P60/14—Measures for saving energy, e.g. in green houses
Landscapes
- Life Sciences & Earth Sciences (AREA)
- Biodiversity & Conservation Biology (AREA)
- Botany (AREA)
- Ecology (AREA)
- Forests & Forestry (AREA)
- Environmental Sciences (AREA)
- Cultivation Of Plants (AREA)
Abstract
The invention relates to the field of plant factory cultivation, and particularly provides a method for improving yield and quality of leaf vegetables in a plant factory by low-dose long-wave ultraviolet light. According to the invention, the photosynthesis and growth of leaf vegetables are not inhibited by the low-dose long-wave ultraviolet light, the yield of the leaf vegetables is improved, the contents of VC and anthocyanin in the leaf vegetables can be improved, the activity of an antioxidant enzyme system of plants is greatly improved, and the yield and quality of the leaf vegetables in a plant factory are greatly improved by adding the low-dose long-wave ultraviolet light.
Description
Technical Field
The invention relates to the field of plant factory cultivation, in particular to a method for improving yield and quality of leaf vegetables in a plant factory by low-dose long-wave ultraviolet light.
Background
LED light sources are considered to be the most suitable light source for plant cultivation in artificial light plant factories. Most of the LED light source spectrum for plant growth is mainly focused in the effective radiation spectrum range (PAR, 400-700nm) of photosynthesis, and the band is generally considered as an energy source for plant photosynthesis. However, light is also an important source of plant morphogenesis and quality, such as ultraviolet light and far-red light. The ultraviolet light is an important component of the sunlight, and in recent years, the ultraviolet light reaching the earth surface is gradually increased along with the increase of ozone holes, wherein most of the ultraviolet light reaching the ground surface is long-wave ultraviolet light (UVA, 320-400nm) and medium-wave ultraviolet light (UVB, 280-320 nm).
With the discovery of the UVB receptor UVR8, more and more relevant research has focused on the mechanism of the effect of UV-B on plant growth; the improvement of plant quality by UV-B is a research hotspot, but the damage of UV-B to plants is too strong, so that the damage to human bodies is large, and the control requirement on UVB in actual production is particularly high. However, there has been no intensive study on the effects of UVA on plants compared to UVB. It is known that UVA has less impact on plant stress, and that proper control of UVA may increase plant yield, and that UVA may also increase the secondary metabolite content of plants, thereby altering crop quality.
At present, the artificial light source in the total artificial light plant factory mainly takes red and blue light as a main part, because of factors such as technical limitation, an ultraviolet light wave band is often lacked in the production of the plant factory, meanwhile, the plants in the total artificial light plant factory are under low light intensity for a long time, and under the condition, the scheme for improving the yield and the quality of the plants by giving proper amount of UVA irradiation to the crops is considered.
Disclosure of Invention
The invention provides a method for improving the yield and quality of leaf vegetables in a plant factory by low-dose long-wave ultraviolet light.
The method for improving the yield and the quality of the leaf vegetables in the plant factory through the low-dose long-wave ultraviolet light is characterized in that the low-dose long-wave ultraviolet light is added on the basis of a conventional LED light source in the leaf vegetable cultivation process of the plant factory.
Wherein, the low dose of long-wave ultraviolet light is simultaneously irradiated by a conventional LED light source and the long-wave ultraviolet light in the light period.
Wherein the low dose of long-wave ultraviolet light is photon flux density of 30 μmol m-2s-1The following long-wave ultraviolet light. The preferred photon flux density is 10 μmol m-2s-1-20μmol m-2s-1Most preferably a photon flux density of 10 μm-2s-1Long wave ultraviolet light.
Wherein the low-dose long-wave ultraviolet light is added for 5-15 days, preferably 10-15 days, and more preferably 10 days before the leaf vegetable is harvested.
Wherein, the wavelength of the long-wave ultraviolet light is 320-400nm, and the peak is preferably 365 nm.
Wherein, the conventional LED light source is an LED light source of a plant factory in the prior art, and the preferable spectrum proportion is as follows: 400-500 nm: 500-600 nm: 600-700 nm: 700 + 800nm ═ 2: 1: 9: 0.4, the illumination intensity is 230 mu mol m-2s-1)。
The leaf vegetables are common leaf vegetables such as lettuce.
The influence of different light intensity UVA and irradiation time periods on the growth of the leafy vegetables under the condition of weak light of a full artificial light plant factory is compared by the system for the first time. The conclusion is obtained through repeated experiments of different treatments, the low-dose UVA irradiation is increased in a full-artificial light plant factory, the photosynthesis and the growth of leaf vegetables cannot be inhibited, the yield of the leaf vegetables can be improved, the contents of VC and anthocyanin in leaves can be improved, and the antioxidant enzyme system and the quality of the plant are greatly improved. And the lettuce is given 10 mu mol m 10 days before harvest-2s-1The UVA of the method can improve the overall yield and quality of the vegetables optimally.
Drawings
FIG. 1 is a graph showing the relative photon spectral distribution of different UVA treatments in example 1 of the present invention.
FIG. 2 shows experimental settings for different UVA light intensity treatments in example 1 of the present invention.
FIG. 3 is a graphical representation of lettuce morphology after 12 days of different UVA treatments in example 1 of the present invention.
FIG. 4 shows different UVAs in example 1 of the present inventionMaximum photosynthetic efficiency (F) of light System II for processing lettuce leavesv/Fm) A histogram.
FIG. 5 shows different UVA treatments at a light intensity of 250. mu. mol m in example 1 of the present invention-2s-1And 1500. mu. mol m-2s-1The photosynthetic rate and stomatal conductance of the lower lettuce leaf are shown in a bar chart.
FIG. 6 is a graph of relative photon spectral distribution processed in example 2 of the present invention.
Fig. 7 is a schematic diagram of experimental settings of different UVA illumination time periods in example 2 of the present invention.
Fig. 8 is a morphological diagram of lettuce after 15 days of permanent planting under different UVA illumination time periods in example 2 of the present invention.
Detailed Description
The following examples are intended to illustrate the invention but are not intended to limit the scope of the invention.
Example 1 Effect of different UVA light intensities on the yield and quality of leaf vegetables in a plant factory
Experimental materials: butter lettuce of purple leaf (Lactuca sativa L.cv. 'Klee'), Raschike sprout of Holland
Environmental conditions: temperature 20-22 deg.C, humidity 60-70%, and CO2Concentration 450ppm, Hoagland nutriculture (pH 5.8, EC 1.8 dSm)-1) The size of the cultivation groove is 130 multiplied by 70cm, the upper layer and the lower layer are three layers, the nutrient solution automatically circulates, and each layer is ventilated by a bidirectional fan. To avoid interaction between the treatments, the different treatments are separated by a reflector.
Experimental treatment: the experiment is provided with four treatments, the light environment parameter settings of each treatment are shown in table 1, and the relative light quantum spectral distribution is shown in fig. 1. The photoperiod intensity processing is shown in figure 2. The control group was treated without UVA, and the first experimental group (UVA-10) was added with 10. mu. mol m based on the control group-2s-1UVA; experiment group two (UVA-20) is that 20 mu mol m is added on the basis of a control group-2s-1UVA; experiment group III (UVA-30) is that 30 mu mol m is added on the basis of a control group-2s-1UVA。
TABLE 1 photon flux Density settings
And (3) growth time: sowing lettuce, growing seedlings until two leaves and one core are planted in the cultivation tank for treatment, and harvesting after 12 days.
Light intensity experimental results
1. Accumulation of dried matter in lettuce and change of leaf area and form
As shown in table 2, the total dry matter and leaf area were significantly increased under the three sets of treatment conditions with increased UVA exposure compared to the control, but there was no significant difference between UVA-10 and UVA-20 treatments; UVA-10 treatment increased dry matter by 30.7% compared to control treatment; UVA-20 treatment increased 31% dry matter over control treatment; UVA-30 treatment increased 14.8% dry matter over control treatment. Leaf area increased significantly in three treatments, 36.8% (UVA-10), 35.8% (UVA-20), 13.4% (UVA-30), respectively. As shown in fig. 3, the canopy amplitude of UVA treated lettuce was significantly greater than the control.
TABLE 2 Effect of different UVA light intensity treatments on lettuce yield and morphological characteristics
| Treatment of | Control | UVA-10 | UVA-20 | UVA-30 |
| Fresh weight of aerial parts (k)g m-2) | 1.24c | 1.62a | 1.62a | 1.42b |
| Dry weight of aerial parts (g m)-2) | 68.84c | 87.53ab | 89.40a | 79.06b |
| Leaf area (cm)2plant-1) | 752.11c | 981.63a | 989.85a | 855.97b |
| Number of blades | 30.2c | 34.3ab | 35.5a | 33.5b |
| Specific leaf area (cm)2g-1) | 402.7 | 404.4 | 428.9 | 435.1 |
| Crown/root ratio | 6.44 | 6.41 | 6.35 | 6.60 |
| Dry matter content (%) | 5.55 | 5.39 | 5.49 | 5.54 |
Note: the data in the table are the mean of 4 experiments, each treatment containing 4 plants per experiment, and the letters after the number are the significance of the difference after LSD test (P < 0.05).
2. Systematic variation of lettuce peroxidation substances and antioxidase
As shown in table 3, superoxide anion production rates were significantly increased with UVA-20 and UVA-30 treatments, but were statistically significantly different with UVA-10 treatment, compared to the control group, after increased UVA illumination. The membrane lipid peroxide MDA is remarkably increased under UVA-30 treatment compared with other treatments. Simultaneously, the activities of superoxide dismutase SOD, peroxidase POD and catalase CAT after UVA treatment in an antioxidant enzyme system are increased. The results show that UVA can improve the activity of the lettuce antioxidant enzyme system and improve the nutritional quality of lettuce. At the same time, the low dose UVA treatment does not cause obvious stress to the plants, but 30 mu mol m-2s-1Mild stress was already placed on plants under UVA treatment.
TABLE 3 Effect of different UVA light intensity treatments on lettuce leaf Biochemical composition and antioxidant enzyme Activity
Note: the data in the table are the mean of 4 experiments, each treatment containing 4 plants per experiment, and the letters after the number are the significance of the difference after LSD test (P < 0.05).
Effect of UVA on Biochemical composition of lettuce leaves
As shown in Table 3, the anthocyanin content of the lettuce leaves after UVA treatment is remarkably increased, the effect is the best under UVA-30 treatment, the anthocyanin content is increased by 49%, and the anthocyanin content is increased by 38% and 28% under UVA-10 and UVA-20 treatment respectively. In addition, the soluble total sugar content increased by 26.2%, 12.7%, 13.1%, the soluble protein increased by 23.7%, 18.7%, 12.5%, and the total vitamin C content increased by 66.1%, 80.1%, and 61%, respectively, under UVA-10, UVA-20, and UVA-30 treatments, respectively, compared to the control. Among them, the ratio of ascorbic acid ASA to dehydroascorbic acid DHA after UVA treatment is reduced, and the ratio is most obviously reduced under UVA-30 treatment, which is consistent with the situation that the content of membrane lipid peroxide is increased under UVA-30 treatment, and the like. And the total phenol content, chlorophyll a, chlorophyll b and carotenoid have no significant difference in the four treatments.
Experiments show that under UVA treatment, anthocyanin, vitamin C, soluble total sugar and soluble protein are all remarkably improved, and the UVA irradiation can improve the quality of lettuce.
Effect of UVA on photosynthetic Performance of lettuce leaves
As shown in FIG. 4, F was obtained under UVA-30 treatment alone, as compared with the control groupv/FmThere is a decrease. The other two treatments did not change significantly, indicating that lettuce was at 30. mu. mol m-2s-1Under UVA treatment, the leaf photosystem II is slightly stressed. This is consistent with the above-mentioned increase in peroxide etc. and decrease in the ASA/DHA ratio.
As shown in FIG. 5, the photosynthesis rate of the leaves of the UVA-treated plants was 250. mu. mol m in light intensity as compared with that of the control group- 2s-1And 1500. mu. mol m-2s-1The photosynthetic rate and stomatal conductance of the plants have no significant difference, which indicates that the low-dose UVA treatment has no negative influence on the photosynthesis of the plants.
In conclusion, the yield and the quality of the leaf vegetables can be improved by 3 UV-A treatments, wherein the yield increasing effects of UVA-10 and UVA-20 are optimal, and the UVA light intensity is selected to be 10 mu mol m from the viewpoint of energy conservation and consumption reduction due to the fact that the UVA-10 and UVA-20 treatment effects have no obvious difference-2s-1The UVA light intensity was optimized as in example 2.
Example 2 effect of different UVA irradiation periods on yield and quality of leafy vegetables in plant factories experimental materials: butter lettuce of purple leaf (Lactuca sativa L.cv. 'Klee'), Raschike sprout of Holland
Environmental conditions: temperature 20-22 deg.C, humidity 60-70%, and CO2Concentration 450ppm, Hoagland nutriculture (pH 5.8, EC 1.8 dSm)-1)The cultivation groove is 130 x 70cm in size, three layers are arranged up and down, the nutrient solution circulates automatically, each layer is ventilated by a bidirectional fan, and different treatments are separated by a reflector.
Experimental treatment: the light intensity of the experiment is selected to be 10 mu mol m-2s-1The optical parameters of each treatment are set as shown in table 4, and the relative optical quantum spectral distribution is shown in fig. 6. The experiment was set up with a total of four UVA light periods. As shown in FIG. 7, the control group was treated without UVA, and the first experimental group (UVA-5Day) was added with 10. mu. mol m based on the control starting 5 days before harvest-2s- 1UVA; experiment group two (UVA-10Day) is that 10 mu mol m is added from 10 days before harvest-2s-1UVA; experiment group III (UVA-15Day) is that 10 mu mol m is added at 15 days before harvest-2s-1UVA. The illumination time is 6:00-22:00 for 16 hours per day.
TABLE 4 photon flux Density settings
And (3) growth time: sowing lettuce, culturing seedling until two leaves and one core are in the middle, transferring the seedling to a cultivation tank for treatment, and harvesting after 15 days.
Experimental results of different UVA illumination time periods
1. Accumulation of dried matter in lettuce and change of plant morphology
As shown in table 5, both total dry matter and leaf area under UVA treatment were significantly increased compared to the control. There was no significant difference between UVA-10Day and UVA-15Day treatments. Compared to the control, the dry matter was increased by 32.5% for UVA-10Day, 30.8% for UVA-15Day, and 17.9% for UVA-5 Day; the leaf area was increased by 15.2% (UVA-5Day), 26.2% (UVA-10Day) and 21.6% (UVA-15Day), respectively.
As shown in FIG. 8, the canopy amplitude of lettuce under UVA treatment was significantly greater than the control, with UVA-10Day treatment and UVA-15Day treatment being most significant.
TABLE 5 lettuce yield and morphological characteristics under different UVA treatments
| Treatment of | Control | UVA-5Day | UVA-10Day | UVA-15Day |
| Fresh weight of aerial parts (kg m)-2) | 1.52c | 1.79b | 1.98a | 1.94a |
| Dry weight of aerial parts (g m)-2) | 82.12c | 96.86b | 108.80a | 107.39ab |
| Leaf area (cm)2plant-1) | 908.3c | 1047.1b | 1146.59a | 1105.08ab |
| Number of blades | 36.3b | 40.1a | 40.6a | 40.7a |
| Specific leaf area (cm)2g-1) | 431.83 | 425.20 | 414.84 | 404.87 |
| Crown/root ratio | 7.01 | 6.59 | 7.21 | 7.49 |
| Dry matter content in the aerial parts (%) | 5.40 | 5.48 | 5.49 | 5.37 |
Note: the data in the table are the mean of 2 experiments, each treatment containing 4 plants per experiment, and the letters after the number are the significance of the difference after LSD test (P < 0.05).
2. Systematic variation of lettuce peroxidation substances and antioxidase
As shown in table 6, there was no significant change in superoxide anion generation rate after increasing the different exposure times of UVA treatment compared to the control group, and there was a significant difference in lettuce CAT catalase activity under all UVA treatments compared to the control group. But the POD and SOD activities have no significant difference.
3. Biochemical composition change of lettuce leaf
As shown in table 6, leaf anthocyanin levels were highest under UVA-15Day treatment, with a 24.5% increase in anthocyanin levels compared to control. The total soluble sugar content increased by 21.6%, 42.4% and 36.8% in UVA-5Day, UVA-10Day and UVA-15Day treatments, respectively; the content of soluble protein is respectively increased by 49.9 percent, 50 percent and 46.1 percent; the total vitamin C content is respectively increased by 47.4 percent, 63.1 percent and 54.7 percent. Wherein the ratio of the ascorbic acid ASA to the dehydroascorbic acid DHA gradually decreases with the increase of the UVA treatment time. The total phenol content, chlorophyll a, chlorophyll b and carotenoid have no significant difference in the four treatments.
TABLE 6 Effect of different UVA time period treatments on Biochemical composition and antioxidant enzyme Activity of lettuce leaves
Note: the data in the table are the mean of 2 experiments, and the letters after the numerical value are the significance of the difference after the LSD test (P < 0.05).
Experiments show that under the treatment of different UVA irradiation time periods, anthocyanin, soluble total sugar and soluble protein are obviously increased. Whereas soluble protein and soluble sugar were most increased under ten days of irradiation prior to harvest.
The results of the above experiments show that different UVA irradiation periods can improve the yield and quality of lettuce, wherein the lettuce is irradiated by 10 mu mol m 10 days before harvest-2s-1The UVA illumination has the best effect on improving the overall yield and quality of the lettuce.
The foregoing is only a preferred embodiment of the present invention, and it should be noted that, for those skilled in the art, various modifications and decorations can be made without departing from the technical principle of the present invention, and these modifications and decorations should also be regarded as the protection scope of the present invention.
Claims (1)
1. A method for improving the yield and quality of leaf vegetables in a plant factory by low-dose long-wave ultraviolet light adopts a conventional LED light source in the leaf vegetable cultivation process of the plant factory, and is characterized in that the conventional LED light source and the long-wave ultraviolet light are used for simultaneous irradiation after 10 days of adding before the leaf vegetables are harvested;
the low dose of long-wave ultraviolet light is photon flux density of 10 mu mol m-2s-1Long-wave ultraviolet light;
the leaf vegetables are lettuce.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910629301.3A CN110249833B (en) | 2019-07-12 | 2019-07-12 | Method for improving yield and quality of leaf vegetables in plant factory by low-dose long-wave ultraviolet light |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910629301.3A CN110249833B (en) | 2019-07-12 | 2019-07-12 | Method for improving yield and quality of leaf vegetables in plant factory by low-dose long-wave ultraviolet light |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN110249833A CN110249833A (en) | 2019-09-20 |
| CN110249833B true CN110249833B (en) | 2021-06-29 |
Family
ID=67925920
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201910629301.3A Active CN110249833B (en) | 2019-07-12 | 2019-07-12 | Method for improving yield and quality of leaf vegetables in plant factory by low-dose long-wave ultraviolet light |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN110249833B (en) |
Families Citing this family (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111418380B (en) * | 2020-04-15 | 2022-07-19 | 厦门大学 | Illumination culture method for promoting green stalk vegetable and Chinese cabbage heart to increase green |
| US11252874B2 (en) * | 2020-04-24 | 2022-02-22 | Seoul Viosys Co., Ltd. | Light source module for plant cultivation |
| CN111642343A (en) * | 2020-07-15 | 2020-09-11 | 厦门大学 | Illumination culture method for promoting dwarfing, stress resistance and yield increase of rice |
| CN112273085B (en) * | 2020-11-10 | 2021-09-21 | 华南农业大学 | Method for improving lettuce quality based on FR and UVA |
| CN114145153B (en) * | 2022-02-10 | 2022-04-29 | 中国农业科学院农业环境与可持续发展研究所 | Method for promoting plant factory seedling raising and strengthening production by low-dose UVB |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103975835A (en) * | 2014-05-16 | 2014-08-13 | 宁波大学 | Cultivation method for broccoli bud rich in sulforaphane |
| CN106508167A (en) * | 2016-09-30 | 2017-03-22 | 宁波大学 | Cultivation method of amaranth seedling rich in gamma-aminobutyric acid |
| CN109068595A (en) * | 2016-04-28 | 2018-12-21 | 首尔伟傲世有限公司 | The growth of tip edge denticulate ixeris herb and physiological activator promote method |
| KR20190020924A (en) * | 2017-08-22 | 2019-03-05 | (주)넥스트에이 | Method for cultivating ginseng and ginseng cultivated by the same |
| CN109906799A (en) * | 2019-03-25 | 2019-06-21 | 中国科学院上海生命科学研究院 | A kind of artificial environment paddy growth special efficient LED light source |
-
2019
- 2019-07-12 CN CN201910629301.3A patent/CN110249833B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103975835A (en) * | 2014-05-16 | 2014-08-13 | 宁波大学 | Cultivation method for broccoli bud rich in sulforaphane |
| CN109068595A (en) * | 2016-04-28 | 2018-12-21 | 首尔伟傲世有限公司 | The growth of tip edge denticulate ixeris herb and physiological activator promote method |
| CN106508167A (en) * | 2016-09-30 | 2017-03-22 | 宁波大学 | Cultivation method of amaranth seedling rich in gamma-aminobutyric acid |
| KR20190020924A (en) * | 2017-08-22 | 2019-03-05 | (주)넥스트에이 | Method for cultivating ginseng and ginseng cultivated by the same |
| CN109906799A (en) * | 2019-03-25 | 2019-06-21 | 中国科学院上海生命科学研究院 | A kind of artificial environment paddy growth special efficient LED light source |
Non-Patent Citations (5)
| Title |
|---|
| Effects of supplemental light quality on growth and phytochemicals of baby leaf lettuce;Li等;《Environmental and Experimental Botany》;20091231(第67期);59-64 * |
| The growth response of leaf lettuce at different stages to multiple wavelength-band light-emitting diode lighting;Chang等;《Scientia Horticulturae》;20141231;第179卷;78-84 * |
| UV irradiance as a major influence on growth, development and secondary products of commercial importance in Lollo Rosso lettuce ‘Revolution’ grown under polyethylene films;Tsormpatsidis等;《Environmental and Experimental Botany》;20081231(第63期);232-239 * |
| 不同光质补光对菜心生长及品质的影响;何建文等;《照明工程学报》;20180831;第29卷(第4期);31-34,61 * |
| 不同光质配比对紫叶生菜光合特性和品质的影响;高勇等;《应用生态学报》;20181130;第29卷(第11期);3649-3657 * |
Also Published As
| Publication number | Publication date |
|---|---|
| CN110249833A (en) | 2019-09-20 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN110249833B (en) | Method for improving yield and quality of leaf vegetables in plant factory by low-dose long-wave ultraviolet light | |
| Wimalasekera | Effect of light intensity on photosynthesis | |
| Mirecki et al. | Effects of ultraviolet-B irradiance on soybean: V. The dependence of plant sensitivity on the photosynthetic photon flux density during and after leaf expansion | |
| Nguyen et al. | Effects of light intensity on the growth, photosynthesis and leaf microstructure of hydroponic cultivated spinach (Spinacia oleracea L.) under a combination of red and blue LEDs in house. | |
| EP3892088B1 (en) | Illumination method for facilitating plant growth | |
| US20190166774A1 (en) | Method to increase crop plant foliage productivity | |
| US20200260651A1 (en) | Method for cultivating plant seedling by artificial light | |
| JP5999552B2 (en) | Plant cultivation system and plant cultivation method using the plant cultivation system | |
| WO2021057476A1 (en) | Light environment regulation method for regulating plant metabolic substances | |
| Yang et al. | Effect of foliar application of brassinolide on photosynthesis and chlorophyll fluorescence traits of Leymus chinensis under varying levels of shade | |
| CN107646684A (en) | A kind of breeding method of purpleback murdannia herb and its application | |
| JP2017060464A (en) | Method for cultivating plants | |
| Letchamo et al. | Photosynthetic potential of Thymus vulgaris selections under two light regimes and three soil water levels | |
| Hikosaka et al. | Effects of light intensity and amount of supplemental LED lighting on photosynthesis and fruit growth of tomato plants under artificial conditions | |
| CN104145678B (en) | A kind of cultivation method promoting transgene tomato growth and astaxanthin accumulation | |
| KR20180009115A (en) | Culturing method of Brassica oleracea var. acephala | |
| JP2000157045A (en) | Treatment of mushroom | |
| Kobayashi et al. | Tomato cultivation in a plant factory with artificial light: Effect of UV-A irradiation during the growing period on yield and quality of ripening fruit | |
| KR102395377B1 (en) | Ginseng cultivation method using aquaponics | |
| KR102320916B1 (en) | Disease-free seed potato production technology in smart farm system | |
| JP6086414B2 (en) | Plant cultivation system and plant cultivation method using the plant cultivation system | |
| CN114885770A (en) | Lettuce quality regulation and control method based on UV-A illumination | |
| Kuniga | Modification of the light environment influences the production of horticultural crops | |
| US20220400619A1 (en) | Device for improving the yield and quality of plants by exposure to uv, associated method and uses | |
| Ota et al. | Difference between nighttime and daytime UV-B irradiation with respect to the extent of damage to perilla leaves |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant |