US20120252673A1 - Composition and method for stress mitigation in plants - Google Patents

Composition and method for stress mitigation in plants Download PDF

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Publication number
US20120252673A1
US20120252673A1 US13/429,014 US201213429014A US2012252673A1 US 20120252673 A1 US20120252673 A1 US 20120252673A1 US 201213429014 A US201213429014 A US 201213429014A US 2012252673 A1 US2012252673 A1 US 2012252673A1
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Prior art keywords
cytokinin
plants
composition
plant
autophagy
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US13/429,014
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English (en)
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Jerry Stoller
Albert Liptay
Ronald Salzman
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Stoller Enterprises Inc
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Stoller Enterprises Inc
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Priority to US13/429,014 priority Critical patent/US20120252673A1/en
Assigned to STOLLER ENTERPRISES, INC. reassignment STOLLER ENTERPRISES, INC. ASSIGNMENT OF ASSIGNORS INTEREST (SEE DOCUMENT FOR DETAILS). Assignors: LIPTAY, ALBERT, SALZMAN, RONALD, STOLLER, JERRY H.
Priority to CA2831688A priority patent/CA2831688C/en
Priority to PE2013002154A priority patent/PE20140454A1/es
Priority to EP20120763789 priority patent/EP2690953A4/en
Priority to US13/433,050 priority patent/US8932987B2/en
Priority to JP2014502759A priority patent/JP5736502B2/ja
Priority to CN201280016424.6A priority patent/CN103619167A/zh
Priority to MX2013011343A priority patent/MX342520B/es
Priority to MYPI2013701811A priority patent/MY161397A/en
Priority to AU2012236529A priority patent/AU2012236529A1/en
Priority to NZ617147A priority patent/NZ617147B2/en
Priority to BR112013025118A priority patent/BR112013025118A2/pt
Priority to PCT/US2012/030981 priority patent/WO2012135366A1/en
Priority to KR1020137028404A priority patent/KR101917898B1/ko
Priority to ARP120101080 priority patent/AR088733A1/es
Priority to UY33988A priority patent/UY33988A/es
Publication of US20120252673A1 publication Critical patent/US20120252673A1/en
Priority to GT201300230A priority patent/GT201300230A/es
Priority to IL228583A priority patent/IL228583A0/en
Priority to PH12013502036A priority patent/PH12013502036B1/en
Priority to CL2013002812A priority patent/CL2013002812A1/es
Priority to CO13256727A priority patent/CO6852085A2/es
Priority to ECSP13013004 priority patent/ECSP13013004A/es
Priority to ZA2013/08079A priority patent/ZA201308079B/en
Priority to US14/569,141 priority patent/US20150119247A1/en
Assigned to BANK OF AMERICA, NA reassignment BANK OF AMERICA, NA SECURITY INTEREST (SEE DOCUMENT FOR DETAILS). Assignors: STOLLER ENTERPRISES, INC.
Assigned to BANK OF AMERICA, NA reassignment BANK OF AMERICA, NA SECURITY INTEREST (SEE DOCUMENT FOR DETAILS). Assignors: STOLLER USA, INC.
Abandoned legal-status Critical Current

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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
    • A01N65/00—Biocides, pest repellants or attractants, or plant growth regulators containing material from algae, lichens, bryophyta, multi-cellular fungi or plants, or extracts thereof
    • 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
    • A01N43/90—Biocides, pest repellants or attractants, or plant growth regulators containing heterocyclic compounds having two or more relevant hetero rings, condensed among themselves or with a common carbocyclic ring system
    • 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
    • A01N33/00—Biocides, pest repellants or attractants, or plant growth regulators containing organic nitrogen compounds
    • 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
    • A01N33/00—Biocides, pest repellants or attractants, or plant growth regulators containing organic nitrogen compounds
    • A01N33/02—Amines; Quaternary ammonium compounds
    • A01N33/06—Nitrogen directly attached to an aromatic ring system
    • 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
    • A01N43/713—Biocides, pest repellants or attractants, or plant growth regulators containing heterocyclic compounds having rings with four or more nitrogen atoms as the only ring hetero atoms
    • 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
    • A01N47/00—Biocides, pest repellants or attractants, or plant growth regulators containing organic compounds containing a carbon atom not being member of a ring and having no bond to a carbon or hydrogen atom, e.g. derivatives of carbonic acid
    • A01N47/08—Biocides, pest repellants or attractants, or plant growth regulators containing organic compounds containing a carbon atom not being member of a ring and having no bond to a carbon or hydrogen atom, e.g. derivatives of carbonic acid the carbon atom having one or more single bonds to nitrogen atoms
    • A01N47/28—Ureas or thioureas containing the groups >N—CO—N< or >N—CS—N<
    • A01N47/36—Ureas or thioureas containing the groups >N—CO—N< or >N—CS—N< containing the group >N—CO—N< directly attached to at least one heterocyclic ring; Thio analogues thereof
    • 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
    • A01N59/00—Biocides, pest repellants or attractants, or plant growth regulators containing elements or inorganic compounds
    • C—CHEMISTRY; METALLURGY
    • C05—FERTILISERS; MANUFACTURE THEREOF
    • C05F—ORGANIC FERTILISERS NOT COVERED BY SUBCLASSES C05B, C05C, e.g. FERTILISERS FROM WASTE OR REFUSE
    • C05F11/00—Other organic fertilisers
    • C05F11/10—Fertilisers containing plant vitamins or hormones

Definitions

  • This invention relates generally to a method and composition for mitigating plant autophagy or the degradation of older plant cells to supply nutrients to deficient newly-forming plant cells, which can occur during development (e.g., flowering) of new plant cells under stressful conditions, such as high temperatures. Moreover, this invention relates to the enhanced development of seeds, and consequently, the increased yield of harvestable grains from plants, including crop plants, that experience environmentally stressful growing conditions during development and growth.
  • mineral fertilizers provide sixteen minerals that are necessary for crop growth and development; however, these minerals are not signaling molecules to effect gene expression.
  • Signaling molecules such as plant growth regulators, are known to enhance crop productivity through the expression of certain genes.
  • plant growth regulators are known to enhance crop productivity through the expression of certain genes.
  • much research has been conducted into the use of plant growth regulators and their effects on plant growth and development.
  • certain “signaling molecules” improves plant productivity by mitigating plant autophagy caused by environmental stresses, such as high growing temperatures.
  • An object of the invention is to accomplish one or more of the following:
  • the disclosed composition and its method of application represents a practical approach to mitigating plant autophagy, and any ensuing apoptosis, that results from stressful plant growing conditions, such as high temperatures.
  • the method preferably includes the application of a plant hormone, primarily a cytokinin, to the foliage and/or flowers of plants at or about the time of plant flowering (e.g., during meiosis and when pollen is about to enter dehiscence).
  • This autophagy-inhibiting agent is preferably the cytokinin, kinetin, however, other forms of cytokinin may be used singularly or in combination, such as zeatin, various forms of zeatin, N6-benzyl adenine, N6-(delta-2-isopentyl) adenine, 1,3-diphenyl urea, thidiazuron, CPPU (forchlorfenuron) or other chemical formulations with cytokinin-like activity.
  • a low concentration of potassium is also applied together with the plant hormone to enhance the effects of the plant hormone as previously described.
  • the cytokinin plant hormone is readied for application to the plants to be treated.
  • the cytokinin plant hormone is preferably applied to the plants as an aqueous solution. Therefore, readying the cytokinin plant hormone may include one or more of the following activities: diluting the cytokinin plant hormone in sufficient water to create the desired concentration of cytokinin in the applied mixture/composition, adding low concentrations of potassium to the cytokinin plant hormone mixture/composition to enhance the effects of the applied cytokinin, loading the cytokinin plant hormone with or without potassium (or an aqueous mixture thereof) into a sprayer or tank for subsequent application to the plants to be treated, calibrating the sprayer or dosing applicator to meter the desired amount of the cytokinin plant hormone mixture to the plants to be treated and transporting the cytokinin plant hormone with or without potassium (or an aqueous mixture thereof) to the location of the plants to be treated.
  • the cytokinin concentration in an undiluted aqueous solution ranges from about 0.01% to about 0.10%.
  • the undiluted aqueous solution of cytokinin is applied in a second step to plants to be treated at the rate of between about 1 ⁇ 4 to 4 pints solution per acre of growing plants and more preferably between 1 to 2 pints solution per acre of growing plants.
  • Such application equates to a rate of between about 0.09 to about 0.76 grams cytokinin per acre of growing plants (diluted in 60 gallons of water per acre), and more preferably, at a rate of between about 0.19 to about 0.38 grams cytokinin per acre of growing plants (diluted in 60 gallons of water per acre).
  • Potassium if applied with the cytokinin, is preferably applied at very low concentrations.
  • the potassium application rates are preferably between about 1 ⁇ 4 lb. to about 2 lbs. per acre, more preferably between about 1 ⁇ 2 lb. to about 11 ⁇ 2 lbs. per acre, and most preferably about 1 lb. per acre.
  • FIG. 1 is a histogram of experimental results testing whether impaired seed/silique development under high temperature growth conditions is caused by a nutrient/sugar insufficiency, which may incite apoptosis of newly-forming plant cells via autophagy; and
  • FIG. 2 is a histogram of experimental data that verifies the results obtained in FIG. 1 , namely that high temperature yield reduction, caused by autophagy, is mainly due to an insufficiency of the plant growth regulator/hormone, cytokinin.
  • a preferred implementation of the invention addresses one or more of the deficiencies of the prior art and incorporates at least one of the objects previously identified.
  • the invention employs a plant growth regulator, preferably a cytokinin, which when appropriately applied to plants has been discovered to enhance the synthesis and transfer of sufficient nutrients, such as sugars, for the growth and development of the reproductive parts (e.g., in particular, the pollen) of plants grown under stressful conditions, such as high temperatures.
  • a plant growth regulator preferably a cytokinin
  • high growing temperatures include growing temperatures above about 25 degrees Celsius (77 degrees Fahrenheit), but more commonly growing temperatures above about 30 degrees Celsius (86 degrees Fahrenheit).
  • a temperature greater than about 20 degrees Celsius may be considered a “high” temperature, depending on the plant type (e.g., wheat barley and rye) and/or locality (e.g., distance from the earth's poles).
  • high temperatures have been found to compromise crop plant productivity. This is thought to be the result of the reduction of cytokinin plant hormones in the plant due to the high temperatures.
  • a reduction in the level of cytokinin in the plant tissues incites autophagy self-cannibalization of healthy plant tissues to provide the required nutrients for reproductive development.
  • the stress of autophagy can compromise seed formation (Cheikh et al. 1994), structural strength and/or physical integrity of the reproductive organs (and thus successful egg fertilization) (Liptay et al. 1994), cell arrangement and organ functionality (Lolle et al. 1998), cell replication (Takahshi et al. 2008) and cell growth (Szekeres et al. 1996).
  • These stress effects are due to autophagy of pre-formed tissues in the various processes of plant growth and development mentioned previously. Furthermore, this autophagy results in apoptosis of potential crop products, thereby significantly reducing crop yield.
  • cytokinin Exogenous applications of cytokinin to the flowers and leaves (i.e., foliage) of plants provides the spatially-required, growth regulator signaling effect needed for enhanced synthesis of nutrients/sugars for use by tender new cells. Enhancement of nutrient synthesis, via cytokinin application, is believed to result in a more complete development of the biological tissues for plant reproduction. Specifically, the availability of an adequate supply of nutrients/energy leads to the successful development of the male sperm, including the various tissues and biological signals responsible for its development. An adequate energy source also aids in the various stages of development of the pollen in which the sperm are protected by encasement.
  • cytokinin application results in the successful formation of seed embryos and associated tissues of the crop plant, thereby overcoming autophagy and any resultant apoptosis.
  • the application of low concentrations of potassium along with the cytokinin has been found to substantially increase the effect of the cytokinin on plant tissues.
  • the physiological effects of higher applied potassium concentrations include: maintaining turgidity in the plants and thus ensuring a water supply, neutralizing anions helping to stabilize pH of the cytoplasm, and general metabolic processes. To induce these physiological effects, the concentration of applied potassium must be on the order of typical fertilizers.
  • the low concentrations of potassium, disclosed herein, employed for signaling effect are at least ten percent lower than typical potassium fertilizer applications, such as those described in U.S. Pat. No. 4,581,056 issued to Nooden et al. or in A.
  • potassium applied in low concentrations, acts much like other signaling molecules (e.g., hormones) in aiding transcription of particular genes, such as the genes that are expressed in response to applied cytokinin.
  • Potassium if applied with the cytokinin, is preferably applied at very low concentrations between about 1 ⁇ 4 lb. to about 2 lbs. per acre, more preferably between about 1 ⁇ 2 lb. to about 11 ⁇ 2 lbs. per acre, and most preferably about 1 lb. per acre.
  • the signaling effect of the potassium has been found to be increasingly diminished for potassium application rates greater than about 2 lbs. per acre.
  • a preferred implementation of the invention facilitates the successful synthesis of nutrients/sugars, such that these nutrients/sugars (i.e., chemical energy) may be transferred to the developing male plant organs.
  • the method preferably includes the application of a plant hormone, primarily a cytokinin, to the foliage and/or flowers of plants at or about the time of plant flowering.
  • the period of potential effectiveness of cytokinin application may range from several weeks prior to flower emergence, up to and including flower emergence, pollination, and during subsequent embryo development.
  • a preferred time is during the process of meiosis, when pollen mother cells my fail to differentiate, or fail to divide. This time of meiosis occurs in dicot plants during an interval after flower bud differentiation, but before the flowers open.
  • the autophagy-inhibiting agent is preferably the cytokinin, kinetin, however, other forms of cytokinin may be used singularly or in combination, such as zeatin, various forms of zeatin, N6-benzyl adenine, N6-(delta-2-isopentyl)adenine, 1,3-diphenyl urea, thidiazuron, CPPU (forchlorfenuron) or other chemical formulations with cytokinin-like activity.
  • a low concentration of potassium is also applied together with the plant hormones to enhance the effects of the plant hormone, cytokinin.
  • the cytokinin plant hormone is readied for application to the plants to be treated.
  • the cytokinin plant hormone is preferably applied to the plants as an aqueous solution.
  • Application of agricultural chemicals may be accomplished in any of several ways well known to those skilled in the art, including but not limited to, spraying, drip lines, side dressing, etc.
  • readying the cytokinin plant hormone may include one or more of the following activities: diluting the cytokinin plant hormone in sufficient water to create the desired concentration of cytokinin in the applied mixture/composition, adding a low concentration of potassium to the cytokinin plant hormone mixture/composition to enhance the effect of the applied cytokinin, loading the cytokinin plant hormone with or with out potassium (or an aqueous mixture thereof) into a sprayer or tank for subsequent application to the plants to be treated, calibrating the sprayer or dosing applicator to meter the desired amount of the cytokinin plant hormone to the plants to be treated and transporting the cytokinin plant hormone with or without potassium (or an aqueous mixture thereof) to the location of the plants to be treated.
  • the cytokinin concentration in an undiluted aqueous solution ranges from about 0.01% to about 0.10%.
  • a commercially-available, undiluted cytokinin product, X-Cyte (a product of Stoller USA, Houston, Tex.), supplies the preferred cytokinin concentration of about 0.04%.
  • the undiluted aqueous solution of cytokinin is applied in a second step to plants to be treated at the rate of between about 1 ⁇ 4 to 4 pints solution per acre of growing plants and more preferably between 1 to 2 pints solution per acre of growing plants.
  • Such application equates to a rate of between about 0.09 grams to about 0.76 grams of cytokinin per acre of growing plants (diluted in 60 gallons of water per acre for a sprayed/applied solution), and more preferably, at a rate of between about 0.19 to about 0.38 grams cytokinin per acre of growing plants (diluted in 60 gallons of water per acre for a sprayed/applied solution), depending on the specific plant/crop species.
  • the amount of cytokinin applied to the growing plants (1 to 2 pints of undiluted cytokinin solution per acre, which is equivalent to 0.1 ppm to 1.66 ppm cytokinin of the sprayed/applied solution per acre) is much lower than previous cytokinin applications to growing plants.
  • the preferred application rates are more than ten fold lower than other reported ranges of cytokinin application, which are from about 20 ppm to about 400 ppm as suggested by N. G. Denny, User Guide of Plant Growth Regulators . If the duration of flower development is lengthy, the application may need to be repeated for the newly developing flowers.
  • Potassium if applied together with the cytokinin, is also preferably applied at low concentrations. (Alternatively, the potassium may be applied prior to or after a separate application of cytokinin. However, such separate applications are not optimal, because they are more energy and time intensive.)
  • the potassium is preferably applied as a potassium salt, such as that found in potash, however other forms of potassium known to those skilled in the art may be equally employed.
  • the potassium application rates are preferably between about 1 ⁇ 4 lb. to about 2 lbs. per acre (equivalent to about 500 ppm to about 4,000 ppm potassium of the sprayed solution per acre), more preferably between about 1 ⁇ 2 lb. to about 11 ⁇ 2 lbs. per acre, and most preferably about 1 lb. per acre.
  • the synergistic effects of applying low concentrations of cytokinin along with low concentrations of potassium to growing plants may not be limited to high stress growing conditions but may also be realized under lower stress growing conditions.
  • FIGS. 1 and 2 clearly indicate that the problem suffered by plants subjected to high temperature stresses during their flowering phase is an inadequacy of cytokinin in the reproductive tissues of the plants.
  • the results further show that appropriate, exogenous cytokinin application, as disclosed herein, increases plant development and crop yields in high temperature growing environments (i.e., increases the number and quality of seeds that are properly developed, thus increasing yield at harvest).
  • FIG. 1 is a histogram of experimental results testing whether impaired seed/silique development under high temperature growth conditions is caused by a nutrient/sugar insufficiency, which may incite apoptosis of newly-forming plant cells by autophagy
  • FIG. 2 is a histogram of experimental data that verifies the results obtained in FIG. 1 , namely that high temperature yield reduction, caused by autophagy, is mainly due to an insufficiency of the plant growth regulator/hormone, cytokinin.
  • a second tested agent consisting of N-(2-chloro-pyridin-4-yl)-N-phenyl-urea (CPPU) at 100 ⁇ g/1 (0.1 ppm) was applied to a second plant grouping to test whether the difficulty in seed formation is due to cytokinin insufficiency or overactive enzymes that break down cytokinin in the plant.
  • the third and fourth agents tested consisted of 6-benzyl adenine (6-BA) and kinetin (KIN)—both cytokinins—each applied at the rate of 100 ⁇ g/l (0.1 ppm).
  • the fifth and sixth agents tested consisted of sucrose sugars applied in solutions of 20 mM (SUC 20) and 100 mM (SUC100), respectively, applied as readily-available energy sources.
  • Aqueous solutions of the tested agents prepared to the stated concentrations/doses were sprayed onto test groups of flowers and leaves (i.e., foliage) of Arabidopsis thaliana until runoff at one day prior to heat exposure and again at four days after the beginning of heat exposure.
  • the total duration of heat exposure was fourteen (14) days.
  • the growing temperatures were maintained at between 33-36 degrees Celsius during sixteen (16) hour days, and at about 25 degrees Celsius during eight (8) hour nights.
  • the experiments were conducted on poly(methyl methacrylate)-enclosed shelves, i.e., Plexiglass®-enclosed shelves, using four dual fluorescent lamps and a thermostat-controlled exhaust fan.
  • the seed pods i.e. siliques
  • filled with developed seeds were counted just prior to the beginning of the experiment, and again after fourteen (14) days of heat exposure treatments.
  • the plant growth regulator cytokinin
  • This result is indicated by the increased number of seeds (i.e., siliques) in the cytokinin tested agents 6-benzyl adenine (6-BA) and kinetin (KIN).
  • FIG. 2 presents an additional set of experimental results that reinforce the results obtained for the previous experiment ( FIG. 1 ).
  • the second experiment was conducted in the same manner and using the same control and tested agent concentrations as the first experiment, with the exception of CPPU application.
  • the respective aqueous solutions as used in the first experiment, with the exception of CPPU were sprayed onto test groups of Arabidopsis thaliana foliage until runoff at one day prior to heat exposure and again at four days after the beginning of heat exposure.
  • the total duration of heat exposure was fourteen (14) days.
  • the growing temperatures were maintained at between 33-36 degrees Celsius during sixteen (16) hour days, and at about 25 degrees Celsius during eight (8) hour nights.
  • the experiments were conducted on poly(methyl methacrylate)-enclosed shelves, i.e., Plexiglass®-enclosed shelves, using four dual fluorescent lamps and a thermostat-controlled exhaust fan.
  • the seed pods i.e. siliques
  • developed seeds siliques >7 mm long and/or >1 mm wide and/or bearing seeds
  • the results of the second experiment may be similarly interpreted as the results of the first experiment, thereby confirming that the plant growth regulator, cytokinin, can mitigate the sugar deficiency in the plant tissues caused by high growing temperatures, thus reducing autophagy.
  • cytokinin the plant growth regulator/hormone, cytokinin, applied together with low concentrations of potassium.
  • the cytokinin that was field-applied was X-Cyte, as previously disclosed.
  • potassium at 1 ⁇ 2 lb. to 1 lb. per acre and cytokinin at 1 pint per acre were applied to field corn.
  • the average increase in yield attained by applying potassium, in addition to cytokinin, was approximately fifteen (15) bushels per acre.

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US13/429,014 2011-03-29 2012-03-23 Composition and method for stress mitigation in plants Abandoned US20120252673A1 (en)

Priority Applications (24)

Application Number Priority Date Filing Date Title
US13/429,014 US20120252673A1 (en) 2011-03-29 2012-03-23 Composition and method for stress mitigation in plants
KR1020137028404A KR101917898B1 (ko) 2011-03-29 2012-03-28 식물들에서 스트레스 경감을 위한 조성물 및 방법
PCT/US2012/030981 WO2012135366A1 (en) 2011-03-29 2012-03-28 Composition and method for stress mitigation in plants
PE2013002154A PE20140454A1 (es) 2011-03-29 2012-03-28 Composicion y metodo para la mitigacion de estres en plantas
EP20120763789 EP2690953A4 (en) 2011-03-29 2012-03-28 COMPOSITION AND METHOD FOR MITIGATION OF STRESS IN PLANTS
US13/433,050 US8932987B2 (en) 2011-03-29 2012-03-28 Composition and method for stress mitigation in plants
JP2014502759A JP5736502B2 (ja) 2011-03-29 2012-03-28 植物のストレス軽減のための組成物および方法
CN201280016424.6A CN103619167A (zh) 2011-03-29 2012-03-28 用于植物中的胁迫缓解的组合物和方法
MX2013011343A MX342520B (es) 2011-03-29 2012-03-28 Composicion y metodo para la mitigacion de estres en plantas.
MYPI2013701811A MY161397A (en) 2011-03-29 2012-03-28 Composition and Method for Stress Mitigation in Plants
AU2012236529A AU2012236529A1 (en) 2011-03-29 2012-03-28 Composition and method for stress mitigation in plants
NZ617147A NZ617147B2 (en) 2011-03-29 2012-03-28 Composition and method for stress mitigation in plants
BR112013025118A BR112013025118A2 (pt) 2011-03-29 2012-03-28 “métodos de mitigação de autofagia de planta, método agrícola, método de cultivo de plantas, composição para mitigar estresse ambiental e composição para diminuir estresse ambiental”
CA2831688A CA2831688C (en) 2011-03-29 2012-03-28 Composition and method for stress mitigation in plants using the plant hormone cytokinin
UY33988A UY33988A (es) 2011-03-29 2012-03-29 Composición y método para la mitigación de la tensión en plantas
ARP120101080 AR088733A1 (es) 2011-03-29 2012-03-29 Composicion y metodo para mitigar el estres en plantas
GT201300230A GT201300230A (es) 2011-03-29 2013-09-27 Composición y método para la mitigación de estrés en plantas
IL228583A IL228583A0 (en) 2011-03-29 2013-09-29 Preparation and method for reducing pressure in plants
PH12013502036A PH12013502036B1 (en) 2011-03-29 2013-09-30 Composition and method for stress mitigation in plants
CL2013002812A CL2013002812A1 (es) 2011-03-29 2013-09-30 Método para mitigar la autofagia de plantas que crecen bajo alto estrés ambiental, que comprende aplicar la citoquinina kinetina y una sal de potasio en una solución acuosa al follaje o flores de las plantas en crecimiento o al suelo donde las plantas crecen, durante o apenas previo a la floración.
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