WO2013178493A1 - Method for growing plants - Google Patents

Method for growing plants Download PDF

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Publication number
WO2013178493A1
WO2013178493A1 PCT/EP2013/060296 EP2013060296W WO2013178493A1 WO 2013178493 A1 WO2013178493 A1 WO 2013178493A1 EP 2013060296 W EP2013060296 W EP 2013060296W WO 2013178493 A1 WO2013178493 A1 WO 2013178493A1
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WO
WIPO (PCT)
Prior art keywords
phases
heating
plants
plant
cooling
Prior art date
Application number
PCT/EP2013/060296
Other languages
French (fr)
Inventor
Vadim Gogichev
Original Assignee
Philippe Saint Ger Ag
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Philippe Saint Ger Ag filed Critical Philippe Saint Ger Ag
Priority to EP13723786.3A priority Critical patent/EP2854505A1/en
Publication of WO2013178493A1 publication Critical patent/WO2013178493A1/en

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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
    • A01G22/00—Cultivation of specific crops or plants not otherwise provided for
    • A01G22/60—Flowers; Ornamental plants
    • A01G22/67—Dwarf trees, e.g. bonsai
    • A—HUMAN NECESSITIES
    • A01—AGRICULTURE; FORESTRY; ANIMAL HUSBANDRY; HUNTING; TRAPPING; FISHING
    • A01G—HORTICULTURE; CULTIVATION OF VEGETABLES, FLOWERS, RICE, FRUIT, VINES, HOPS OR SEAWEED; FORESTRY; WATERING
    • A01G22/00—Cultivation of specific crops or plants not otherwise provided for
    • A01G22/10—Asparagus

Definitions

  • the invention relates to a method for growing plants.
  • the plants are exposed to at least one or a plurality of 24-hour temperature cycle(s) with alternating heating- phases and cooling-phases, wherein the temperature cycle includes at least two heating-phases, and wherein during the heating-phases the plant is heated up until the plant reaches a predetermined maximum temperature.
  • the heating-phases are performed in a way that inside of the stem of the plant preferably reaches the predetermined maximum temperature.
  • the predetermined maximum temperature depends on the type of plants. The predetermined temperature is for example lower for plants that usually grow in temperate regions and higher for example for tropical plants. It is also dependent on the size of the plants to be treated.
  • the plant is preferably actively or passively cooled down to a predetermined minimum temperature.
  • the predetermined maximum temperature is between 25°C and 60°C, and the difference between the minimum temperature and the predetermined maximum temperature is preferably between 1 5°C and 35°C, preferably between 20°C and 30°C.
  • the predetermined minimum temperature is preferably between 3°C and 25°C.
  • the plant is actively heated up with a heating device during the heating-phases and actively cooled down with a cooling device or passively cooled down due to a surrounding colder temperature during the cooling-phases.
  • the heating-phase stops and the cooling-phase starts as soon as the plant reaches the predetermined maximum temperature and/or the cooling-phase stops and the heating-phase starts as soon as the plant reaches the predetermined minimum temperature.
  • the heating-phases have a duration of 1 to 60 minutes, preferably 1 0 to 30 minutes, more preferably 1 5 to 20 minutes.
  • the shortest cooling-phases have duration of at least 2 hours, preferably 2 to 6 hours, more preferably 3 to 5 hours, more preferably about 4 hours.
  • the heating-phases are distributed over the entire 24 hours cycle, over daytime or over nighttime, and the heating-phases are preferably evenly distributed.
  • the predetermined maximum temperature of the heating-phase can be reached by using a heating device.
  • the cooling-phases can be passive or active.
  • the heating-phases can be achieved by the sun during daytime and a heating device during the nighttime. I n that case the cooling-phases are achieved by shading and/or by using a cooling device.
  • the heating- phases are achieved by a heating device. For the cooling after the heating-phase the heating device is turned off and the plants cool down due to the colder surrounding environment.
  • the method is used during the first weeks of the development of the plants. Preferably, it is used on plants during at least two weeks, preferably at least four weeks.
  • the method can further be used to control pests and many diseases with the high and low temperatures of the heating- and cooling-phases without harm to the plants.
  • the invention further relates to plants grown according to a method according to one of the claims 1 to 1 4.
  • FIG U RES The invention is described in greater detail below with reference to embodiments that are illustrated in the figures.
  • the figures show:
  • Fig . 1 a schematic diagram of a temperature cycle
  • Fig . 2 under (a) a photo of a lucky bamboo plant treated with the method of the invention, under ( b) a photo of a control with a lucky bamboo plant not treated with the method, and under (c) a photo of both plants after 99 days; and
  • Fig . 3 a photo of white ficus plants one treated with the method of the invention (left), and one control plant not treated with the method (right) .
  • Fig . 1 a schematic diagram of a temperature cycle with heating-phases H and cooling phases C.
  • the heating-phases H the plants are heated until they reach a predetermined maximum temperature Tmax.
  • Tmax the predetermined temperature
  • Tmin the predetermined minimum temperature
  • Fig . 2 shows under (a) a photo of a lucky bamboo (dracaena sanderiana) plant treated with the method of the invention, under (b) a photo of a control with a lucky bamboo plant not treated with the method, and under (c) a photo of both plants after 99 days.
  • the photos of (a) and ( b) are taken after 3 1 days of experiment.
  • the lucky bamboo plants comprise several cut stems of bamboo of about 1 cm in diameter artificially assembled together to a cylindrical structure. From the stem several shoots were growing radially outwards and upwards. During the experiment the length of the shots and the number of leaves were measured to asses the growth of the plant (Table 1 ) .
  • each heating-phase H had duration of about 1 5 minutes with intervals (cooling-phases C) of about 4 hours.
  • the control plant was not subjected to the heating-phases H . Except for the heating- and cooling-phases both plants were grown under the same conditions (sunlight, watering and temperature) .
  • Table 1 shows the outcome of experiment 1 during the first month:
  • Base of the shoots more dense. Base of the shoots form from They form a greater number of 6 to 7 leaves.
  • Fig . 2(c) shows a photo of both plants after 99 days of the experiment. Length of the shoots of plants cm, + 0,5 mm
  • Two white ficus plants were used for experiment 2.
  • the plants have small leaves, form side shoots that are usually close to the root zone and have apical buds.
  • the plants were treated the same way as the plants in experiment 1.
  • Table 2 shows the outcome of experiment 2 during the first month:
  • the plant has active buds along Only the apical shoots grow (2-3 the entire length of the parent buds at the end of the active parent shoot. shoot).
  • Fig. 3 shows a photo of two white ficus plants after the stress period .
  • the one on the left has been treated with the method of the invention ( Fig. 3 , left), and the one on the right is a control plant that has not been treated with the method ( Fig. 3, right) .
  • the control plant was not resistant to the stress conditions and dried out.
  • the proposed mechanism of the short and regular heating-phases increased heat activates the circulation of water through a "pumping" effect, because the tissue expands during the heating-phase and narrows during the cooling-phase.
  • the effect of the accelerated growth persisted after exposing the plants to the heating-phases.
  • the treated plants showed rapid growth of lateral branches, which was not the case with the control plants.
  • the treated plants showed a higher resistance to the shortage of water (e.g . experiment 2) .

Abstract

The invention relates to a method for growing plants characterized in that the plants are exposed to a 24-hours temperature cycle with alternating heating- phases (H) and cooling-phases (C), wherein the temperature cycle includes at least two heating-phases (H), and wherein during the heating-phases (H) the plant is heated up until the plant reaches a predetermined maximum temperature (Tmax).

Description

Method for growing plants
TECH N ICAL FI ELD
The invention relates to a method for growing plants.
It is an objective of the invention to provide a method for growing plants, which stimulates increased growth rates.
The objective of the present invention is achieved by the method according to claim 1 . According to the method of the invention, the plants are exposed to at least one or a plurality of 24-hour temperature cycle(s) with alternating heating- phases and cooling-phases, wherein the temperature cycle includes at least two heating-phases, and wherein during the heating-phases the plant is heated up until the plant reaches a predetermined maximum temperature. Preferably the heating-phases are performed in a way that inside of the stem of the plant preferably reaches the predetermined maximum temperature. The predetermined maximum temperature depends on the type of plants. The predetermined temperature is for example lower for plants that usually grow in temperate regions and higher for example for tropical plants. It is also dependent on the size of the plants to be treated. During the cooling-phases the plant is preferably actively or passively cooled down to a predetermined minimum temperature.
It has been found that such a temperature regime of a certain amount of heat stimulates the growth of the plant to be cultivated. In a preferred embodiment of the invention the predetermined maximum temperature is between 25°C and 60°C, and the difference between the minimum temperature and the predetermined maximum temperature is preferably between 1 5°C and 35°C, preferably between 20°C and 30°C. The predetermined minimum temperature is preferably between 3°C and 25°C.
In a further preferred embodiment of the invention the plant is actively heated up with a heating device during the heating-phases and actively cooled down with a cooling device or passively cooled down due to a surrounding colder temperature during the cooling-phases.
In a further preferred embodiment of the invention the heating-phase stops and the cooling-phase starts as soon as the plant reaches the predetermined maximum temperature and/or the cooling-phase stops and the heating-phase starts as soon as the plant reaches the predetermined minimum temperature.
In a further preferred embodiment of the invention the heating-phases have a duration of 1 to 60 minutes, preferably 1 0 to 30 minutes, more preferably 1 5 to 20 minutes. Preferably, the shortest cooling-phases have duration of at least 2 hours, preferably 2 to 6 hours, more preferably 3 to 5 hours, more preferably about 4 hours.
In a further preferred embodiment of the invention the heating-phases are distributed over the entire 24 hours cycle, over daytime or over nighttime, and the heating-phases are preferably evenly distributed. The predetermined maximum temperature of the heating-phase can be reached by using a heating device. During the heating-phase the main parts of the plants are heated up to the predetermined maximum temperature, preferably just as far that no heat damage is afflicted to the plants. The cooling-phases can be passive or active. Depending on the environmental conditions, e.g. in hot climate areas, the heating-phases can be achieved by the sun during daytime and a heating device during the nighttime. I n that case the cooling-phases are achieved by shading and/or by using a cooling device. In temperate or cold climate areas, the heating- phases are achieved by a heating device. For the cooling after the heating-phase the heating device is turned off and the plants cool down due to the colder surrounding environment.
In a further preferred embodiment of the invention the method is used during the first weeks of the development of the plants. Preferably, it is used on plants during at least two weeks, preferably at least four weeks.
The method can further be used to control pests and many diseases with the high and low temperatures of the heating- and cooling-phases without harm to the plants.
The invention further relates to plants grown according to a method according to one of the claims 1 to 1 4.
BRI EF EXPLANATION OF TH E FIG U RES The invention is described in greater detail below with reference to embodiments that are illustrated in the figures. The figures show:
Fig . 1 a schematic diagram of a temperature cycle;
Fig . 2 under (a) a photo of a lucky bamboo plant treated with the method of the invention, under ( b) a photo of a control with a lucky bamboo plant not treated with the method, and under (c) a photo of both plants after 99 days; and
Fig . 3 a photo of white ficus plants one treated with the method of the invention (left), and one control plant not treated with the method (right) .
EM BODI M ENTS OF THE I NVENTION
Fig . 1 a schematic diagram of a temperature cycle with heating-phases H and cooling phases C. During the heating-phases H the plants are heated until they reach a predetermined maximum temperature Tmax. As soon as the reach the predetermined temperature Tmax the heating phase H is terminated and the cooling phase C starts until the plant reaches a predetermined minimum temperature Tmin . The cycle is repeated over 24 hours.
Experiment 1 : Lucky bamboo (dracaena sanderiana)
Fig . 2 shows under (a) a photo of a lucky bamboo (dracaena sanderiana) plant treated with the method of the invention, under (b) a photo of a control with a lucky bamboo plant not treated with the method, and under (c) a photo of both plants after 99 days. The photos of (a) and ( b) are taken after 3 1 days of experiment.
The lucky bamboo plants comprise several cut stems of bamboo of about 1 cm in diameter artificially assembled together to a cylindrical structure. From the stem several shoots were growing radially outwards and upwards. During the experiment the length of the shots and the number of leaves were measured to asses the growth of the plant (Table 1 ) .
During the first month of the experiment one of the lucky bamboo plants was treated with the method of the invention . It was subjected to three heating- phases H per day. Each heating-phase H had duration of about 1 5 minutes with intervals (cooling-phases C) of about 4 hours. For heating the plant a barbecue apparatus was used, but any other suitable heating device can be used as well . The control plant was not subjected to the heating-phases H . Except for the heating- and cooling-phases both plants were grown under the same conditions (sunlight, watering and temperature) .
Table 1 shows the outcome of experiment 1 during the first month:
Length of the shoots of plants cm, + 0, 5 mm
Plant treated with method Control day 1 Long 4 and 5 Long 5 and 6
Average 2.5 and 3 Average 2.5 and 3.5 Small up to 2 Small up to 2 day 1 1 Long 4.5 and 5.5 Long 5 and 6
Average 3 and 3.5 Average 3.5 and 4 Small up to 2.5 Small up to 3 day 2 1 Long 6 and 6.5 Long 5.5 and 6
Average 4 and 5 Average 4 and 4.5
Small up to 3 Small up to 3.5
Base of the shoots more dense. Base of the shoots form from They form a greater number of 6 to 7 leaves.
leaves from 7 to 9 pieces
day 3 1 Long 6 and 6.5
Long 7 and 8
Average 4.5 and 5
Average 5.5 and 6
Small up to 4
Small up to 4.5
Shoots are visually much
The area of leaves forming
smaller (Fig.2(b)).
shoots approximately 2 times
greater than that of control
plants ( Fig. 2(a) ) .
After applying the temperature cycle with heating-phases H and cooling phases C during one month, the plants were subjected to stress during a second phase of the experiment. The stress consisted of 1 4 days without watering and relatively low temperatures around 8°C to 1 0°C. After the stress period the plants were again grown under normal conditions but without the heating- and cooling phases and the length of the shots and the number of leaves were measured again after approx. two months. Fig . 2(c) shows a photo of both plants after 99 days of the experiment. Length of the shoots of plants cm, + 0,5 mm
Plant treated with method
Control (Fig.2(c))
(Fig.2(c))
day 99 Long 9 - 10 Long 7 - 8
Average 6 - 8 Average 5 - 6
Small 4- 5.5 Small 4.5
Experiment 2:
Two white ficus plants were used for experiment 2. The plants have small leaves, form side shoots that are usually close to the root zone and have apical buds. The plants were treated the same way as the plants in experiment 1.
Table 2 shows the outcome of experiment 2 during the first month:
Length of the shoots of plants cm, + 0,5 mm
Plant treated with method Control day 1 Long 15 - 17 Long 16- 17
Average 10- 13 Average 9 - 11
Small 3 - 5 Small 4-6 day 11 Long 16- 18 Long 17 - 18
Average 11 -13 Average 11 - 12
Small 4- 5.5 Small 5.5 - 7
Plant is under stress due to overheating. day 21 Long 17 - 18.5 Long 18.5 - 19
Average 12 - 14 Average 11.5 - 13
Small 5 - 7 Small 6-9
Actively growing new side shoots
of 1.5-2 cm in the axils of the
branches closer to the root zone,
there are more than the control
plants
day 31 Long 19 - 19.5 Long 19.5 - 20
Average 13 - 15 Average 12 - 15
Small 8- 9 Small 8- 10
The plant has active buds along Only the apical shoots grow (2-3 the entire length of the parent buds at the end of the active parent shoot. shoot).
After applying the temperature cycle with heating-phases H and cooling phases C during one month, the plants were subjected to stress a second phase of the experiment. The stress consisted of 14 days without watering and relatively low temperatures around 8°C to 10°C. After the stress period the plants were again grown under normal conditions but without the heating- and cooling phases and the length of the shots and the number of leaves were measured again after 2 approx. two months. Length of the shoots of plants cm, + 0, 5 mm
Plant treated with method Control day 99 Long 26.5 - 24.5 Control plants dried out during stress
Average 1 7 - 1 9 period .
Small 9 - 1 3.5
A lot of side shoots and buds active. The leaves are bright green .
Fig . 3 shows a photo of two white ficus plants after the stress period . The one on the left has been treated with the method of the invention ( Fig. 3 , left), and the one on the right is a control plant that has not been treated with the method ( Fig. 3, right) . The control plant was not resistant to the stress conditions and dried out.
Conclusion of the experiments: Short and regular heating-phases influence the development of plants. The growth of shoots is increased.
The proposed mechanism of the short and regular heating-phases: increased heat activates the circulation of water through a "pumping" effect, because the tissue expands during the heating-phase and narrows during the cooling-phase.
The effect of the accelerated growth persisted after exposing the plants to the heating-phases. The treated plants showed rapid growth of lateral branches, which was not the case with the control plants. I n addition, the treated plants showed a higher resistance to the shortage of water (e.g . experiment 2) .

Claims

Claims
1. Method for growing plants characterized in that the plants are exposed to a 24-hour temperature cycle with alternating heating-phases ( H ) and cooling-phases (C), wherein the temperature cycle comprising at least two heating-phases ( H ), and wherein during the heating-phases ( H ) the plant is heated up until the plant reaches a predetermined maximum temperature (Tmax) .
2. Method according to claim 1 , wherein during the cooling-phases (C) the plant is actively or passively cooled down to a predetermined minimum temperature (Tmin) .
3. Method according to one of the preceding claims, wherein the predetermined maximum temperature (Tmax) is between 25°C and 60°C.
4. Method according to one claims 2 to 3, wherein the difference between the minimum temperature (Tmin ) and the predetermined maximum temperature (Tmax) is between 1 5°C and 35°C, preferably between 20°C and 30°C.
5. Method according to one of the preceding claims, wherein during the heating-phases ( H ) the plant is actively heated up with a heating device.
Method according to one of the preceding claims, wherein during the < ing-phase (C) the plant is actively cooled down with a cooling device or sively cooled down due to a surrounding colder temperature.
7. Method according to one of the preceding claims, wherein the heating- phase ( H ) stops and the cooling-phase (C) starts as soon as the plant reaches the predetermined maximum temperature (Tmax) .
8. Method according to claims 2 to 7, wherein the cooling-phase (C) stops and the heating-phase ( H ) starts as soon as the plant reaches the predetermined minimum temperature (Tmin) .
9. Method according to one of the preceding claims, wherein the predetermined minimum temperature (Tmin) is between 3°C and 25°C.
Method according to one of the preceding claims, wherein the heating- phases ( H ) have a duration of 1 to 60 minutes, preferably 1 0 to 30 minutes, more preferably 1 5 to 20 minutes.
1 1 . Method according to one of the preceding claims, wherein the shortest cooling-phases (C) have duration of at least 2 hours, preferably 2 to 6 hours, more preferably 3 to 5 hours, more preferably about 4 hours.
Method according to one of the preceding claims, wherein the heating- phases ( H ) are distributed over the entire 24 hours cycle, over daytime or over nighttime, and wherein the heating-phases are preferably evenly distributed .
1 3. Method according to one of the preceding claims, wherein the method is used on plants during at least two weeks, preferably at least four weeks. 14. Method according to one of the preceding claims, wherein the method is used during the first weeks of the development of the plants.
1 5. Plants grown according to a method according to one of the claims 1 to 1 4.
PCT/EP2013/060296 2012-06-01 2013-05-17 Method for growing plants WO2013178493A1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
EP13723786.3A EP2854505A1 (en) 2012-06-01 2013-05-17 Method for growing plants

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
CH00759/12A CH706585A1 (en) 2012-06-01 2012-06-01 A method of growing plants.
CH00759/12 2012-06-01

Publications (1)

Publication Number Publication Date
WO2013178493A1 true WO2013178493A1 (en) 2013-12-05

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Country Status (3)

Country Link
EP (1) EP2854505A1 (en)
CH (1) CH706585A1 (en)
WO (1) WO2013178493A1 (en)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN105165476A (en) * 2015-08-18 2015-12-23 重庆市沁旭竹笋有限公司 Heat-preserved shooting method for phyllostachys praecox shoots in winter
CN106982636A (en) * 2017-04-27 2017-07-28 广西乐业华东投资有限公司 A kind of diseases prevention method for culturing seedlings of passion fruit
US20210189020A1 (en) * 2019-12-20 2021-06-24 Association Pour Les Transferts De Technologies Du Mans Dandelion rubber production by thermal cycles implementation

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US8327578B1 (en) * 2010-09-22 2012-12-11 The United States Of America As Represented By The Secretary Of Agriculture Process for the off-season production of blackberries
WO2013011351A1 (en) * 2011-07-18 2013-01-24 Phaza Energy Ltd. Appartus and method for controlling a greenhouse environment

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EP0476929A2 (en) * 1990-09-12 1992-03-25 Geophysical Engineering Company Method of and apparatus for controlling the heat load on enclosures
US8327578B1 (en) * 2010-09-22 2012-12-11 The United States Of America As Represented By The Secretary Of Agriculture Process for the off-season production of blackberries
WO2013011351A1 (en) * 2011-07-18 2013-01-24 Phaza Energy Ltd. Appartus and method for controlling a greenhouse environment

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN105165476A (en) * 2015-08-18 2015-12-23 重庆市沁旭竹笋有限公司 Heat-preserved shooting method for phyllostachys praecox shoots in winter
CN106982636A (en) * 2017-04-27 2017-07-28 广西乐业华东投资有限公司 A kind of diseases prevention method for culturing seedlings of passion fruit
US20210189020A1 (en) * 2019-12-20 2021-06-24 Association Pour Les Transferts De Technologies Du Mans Dandelion rubber production by thermal cycles implementation

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EP2854505A1 (en) 2015-04-08

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