JP2004300069A - Plant growth promoter - Google Patents

Plant growth promoter Download PDF

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Publication number
JP2004300069A
JP2004300069A JP2003095375A JP2003095375A JP2004300069A JP 2004300069 A JP2004300069 A JP 2004300069A JP 2003095375 A JP2003095375 A JP 2003095375A JP 2003095375 A JP2003095375 A JP 2003095375A JP 2004300069 A JP2004300069 A JP 2004300069A
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JP
Japan
Prior art keywords
plant
plant growth
propanediol
solvent
growth promoter
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JP2003095375A
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Japanese (ja)
Inventor
Yoshiharu Fujii
義晴 藤井
Mitsuko Hamano
滿子 濱野
Masaru Ogawa
勝 小川
Shiyuntarou Hiradate
俊太郎 平舘
Hiroshi Araya
博 荒谷
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NAT INST AGRO ENVIRONMENTAL SCIENCE
National Institute for Agro Environmental Sciences
Original Assignee
NAT INST AGRO ENVIRONMENTAL SCIENCE
National Institute for Agro Environmental Sciences
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Priority to JP2003095375A priority Critical patent/JP2004300069A/en
Publication of JP2004300069A publication Critical patent/JP2004300069A/en
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Abstract

<P>PROBLEM TO BE SOLVED: To provide a novel plant growth promotor which has a high plant physiological activity modification action and storage stability, and is low toxic to mammals. <P>SOLUTION: The plant growth promotor contains 1,2-propanediol as an active ingredient. This plant growth promotor is inexpensive and easily miscible with water, an oil or the like, and accordingly has an excellent effect of easy handling or the like. <P>COPYRIGHT: (C)2005,JPO&NCIPI

Description

【0001】
【発明の属する技術分野】
本発明は、植物成長促進剤に関する。
【0002】
【従来の技術及び発明が解決しようとする課題】
ジベレリン剤及びオーキシン剤等の植物の成長を促進させる作用を有する薬剤が市販されているが、保存安定性、価格及び特性等の観点より更なる植物成長促進剤の開発が要求されている。
【0003】
本発明は、かかる課題を解決すべくなされたものであり、新たな植物成長促進剤を提供することを目的とする。
【0004】
【課題を解決するための手段】
本発明に係る植物成長促進剤は、1,2−プロパンジオールを有効成分として含有することを特徴とする。
【0005】
【発明の実施の形態】
本発明者は、植物エキスの製造方法及び使用方法に関する研究・開発を長年にわたって行っているが、新たに開発した製造方法によって製造した植物エキスが、種々の植物生理活性調整作用を呈することを見出した。そして、この植物エキスについて、植物生理活性調整作用を呈する成分の分析を行ったところ、1,2−プロパンジオール(1,2−Propanediol)が植物成長促進作用を示すという知見を得て本発明を完成した。
【0006】
すなわち、本発明の植物成長促進剤は、1,2−プロパンジオールを有効成分として含有する。1,2−プロパンジオールは、食品添加物として認可されており、一般に、抗菌・抗かび活性を有していることは知られているが、1,2−プロパンジオールが植物成長促進作用を有することは認識されていなかった。この1,2−プロパンジオールは、保存安定性が高く、哺乳類に対する毒性が低い。更に、1,2−プロパンジオールは水又は油等と容易に混合し得るため、取り扱いも容易である。また、合成型の1,2−プロパンジオールは廉価である一方、合成型の1,2−プロパンジオールにも天然型と同程度の植物成長促進作用があることが確認された。
【0007】
【実施例】
以下、本発明の内容を詳述する。
図1は植物エキスの製造工程を示す工程図である。かかる植物エキスの原料たる植物体としては、檜、翌檜、ネズコ、サワラ、杉、楠、松類、白樺、ブナ、クリ、レンギョウ、マテ、樫、コブシ、山桜、柿の葉、ツバキ、ナンテン、熊笹、ヒキオコシ、ヨモギ、アロエの葉、お茶の葉茎、甘茶蔓の葉茎、モミ、山椒の葉茎、アケビの実、ハハキギの実、レモン果実、山アジサイ、ニンジン葉を含む原料植物群から選択される複数の植物体を原料として用いる。
【0008】
このような原料を破砕機へ各別に投入して破砕(裁断も含む)し(S1)、適宜の細度(好ましくは、直径が8mm以下)の破砕原料をそれぞれ得る。そして、複数の破砕原料それぞれについて、乾留、蒸留、水蒸気蒸留及び搾汁を含む抽出操作群から選択される1又は複数の抽出操作を行って、各破砕原料それぞれの抽出液を得る(S2)。
【0009】
水蒸気蒸留(S21)は、1.0×10Pa〜1.2×10Paの圧力で、100℃〜120℃の温度で発生させた水蒸気を、破砕原料(抽出対象)に吹き込むことによって行う。
【0010】
乾留(S22)は、破砕原料(抽出対象)を、100℃〜350℃の範囲、好ましくは150℃〜300℃の範囲の温度に加熱することによって行う。加熱温度が100℃より低くなるにつれて、葉酸、葉酸コリン、各種テルペン類、アミノ酸、α−ピネン、β−ピネン、ヒノキチオール、カンフェン、クエン酸等の成分の抽出率が低下し始め、加熱温度が300℃より高くなるにつれて、有効成分の抽出率が低下すると共に、着色性、粘性等が著しく悪化していた。一方、150℃〜300℃の範囲の温度での乾留により得られた抽出液は官能試験等による結果に優れていた。
【0011】
なお、乾留は、8×10Pa程度の圧力下で行ってもよい。この場合、加熱温度を相対的に低くして乾留を実施することができるため、葉酸、葉酸コリン、各種テルペン類、アミノ酸、α−ピネン、β−ピネン、ヒノキチオール、カンフェン、クエン酸等の成分の加熱分解を抑制することができる。
【0012】
一方、蒸留(S23)は、破砕植物(抽出対象)に加水し、抽出対象に十分含水させた後、50℃〜100℃の範囲、好ましくは60℃〜70℃の範囲の温度に加熱しつつ、8×10Pa程度の圧力で行う。加熱温度が50℃より低下するにつれて、葉緑素、酢酸、ビタミンA、ビタミンB、ビタミンC、ビタミンK等の成分の抽出率が低下し、加熱温度が100℃より高くなるにつれて、かかる成分が熱分解される。一方、60℃〜70℃の範囲の温度での乾留により得られた抽出液は官能試験等による結果に優れていた。
【0013】
一方、搾汁(S24)は、主に草・葉・実等の原料植物について、そのまま又は加水後、2.0×10Pa〜3.0×10Paの圧力で圧搾することによって行う。
【0014】
このような抽出操作は、原料植物の種類に応じて、単独で実施してもよく、また、組み合わせて実施してもよい。例えば、水蒸気蒸留を実施した後の原料植物について乾留を実施してもよいし、搾汁を実施した後の原料植物について水蒸気蒸留を実施してもよい。更に、一次乾留を行った原料植物について、一次乾留と異なる温度で二次乾留を実施してもよい。一方、一種類の原料植物について、異なる種類の抽出操作を行って、複数種類の抽出液を得るようにしてもよい。
【0015】
このようにして、各原料植物についてそれぞれ抽出液を得、得られた各抽出液を撹拌しつつ、適当な割合になるように混合することによって調合する(S3)。なお、各抽出液は減圧蒸留等による精製・脱色を行っておいてもよい。この調合液を暗所で数日から数年熟成させて植物エキスを得る(S4,S5)。この熟成中に、調合液中の各成分の化学反応によって、有用な成分が増加する。なお、植物エキスは、ヤシガラ炭、骨炭若しくは木炭等の天然系、又は樹脂若しくはゴム等から焼成した合成系の活性炭、及び/或いはスルホン酸基型、メタクリル酸基型又はアクリル酸基型のイオン交換樹脂を用いて脱色してもよい。
【0016】
かかる植物エキスは、1,2−プロパンジオール以外にも、消臭防黴除菌作用の1又は複数を示す葉酸、葉緑素、葉酸コリン、各種テルペン、アミノ酸、α−ピネン、β−ピネン、ヒノキチオール、カンフェン、クエン酸、酢酸、ビタミンA、ビタミンB、ビタミンC、ビタミンK等の成分が分解されることなく、高い抽出率で抽出することができると共に、乳化剤を添加することなく、油性成分がエマルジョン化した状態の植物エキスを製造することができる。
【0017】
このようにして得られた植物エキスを、35℃程度の温度で減圧濃縮し、ヘキサン・クロロホルム・メタノール等による溶剤抽出、又はシリカゲル等を充填したカラムクロマトグラフィー等の手法を用いて、1,2−プロパンジオールを分離精製する。このようにして得られた天然型の1,2−プロパンジオールは、1ppm程度の濃度で植物成長促進作用が認められた。
【0018】
ところで、かかる天然型の1,2−プロパンジオールのみならず、合成された1,2−プロパンジオールにも天然型の1,2−プロパンジオールと略同程度の植物成長促進作用が認められた。
【0019】
次に、前述した如き製造方法によって製造した植物エキスについて、植物生理活性調整作用の一つである植物成長促進作用を試験した結果について説明する。
表1は、本発明に係る植物成長促進剤による植物成長促進作用を試験した結果を示す表である。表1において、本発明例は、前述した如く製造した植物エキスを水で1万倍に希釈し、それを、それぞれ同じ圃場で生育中の白菜、ホーレンソ、高菜、白カブ、赤カブ及び大根に、一週間に2回の割合で葉面散布して栽培し、収穫した各野菜についてそれぞれ5体の総重量を計量した結果を示したものであり、比較例は、同じ圃場で生育中の白菜、ホーレンソ、高菜、白カブ、赤カブ及び大根に、一週間に2回の割合で水を葉面散布して栽培し、収穫した各野菜についてそれぞれ5体の総重量を計量した結果を示したものである。
【0020】
【表1】

Figure 2004300069
【0021】
表1から明らかな如く、本発明に係る植物成長促進剤を使用した場合、それを使用しなかった場合に比べて、白菜、ホーレンソ及び高菜といった葉菜類では、5体の総重量が1.41倍〜1.83倍と有意に増加しており、白カブ、赤カブ及び大根といった根菜類では、1.32倍〜2.33倍と有意に増加していた。なお、根菜類にあっては、葉の部分の総重量に有意な増加は認められなかった。
【0022】
次に、植物エキスから1,2−プロパンジオールを精製抽出し、植物成長促進作用を試験した結果について説明する。
植物エキスから1,2−プロパンジオールを精製抽出するには次のようにして行った。前述した如く製造した植物エキスをエバポレータにより減圧下、35℃の温度で濃縮・乾固した後、少量のヘキサンで溶解し、これに適宜量のシリカゲルを加え、前同様の操作を行って乾固した。ヘキサン中に懸濁させたシリカゲルをガラスカラムに充填・平衡化させておき、前述した如く植物エキスと共に乾固したシリカゲルをガラスカラム内のシリカゲル上に添加し、次のa)〜g)溶媒で溶出してカラムクロマトグラフィーを実施し、各溶媒に対応する複数の画分を得た。
【0023】
a)溶媒は、ヘキサンとクロロホルムとの比が7:3になるように混合した溶媒であり、b)溶媒は、ヘキサンとクロロホルムとの比が5:5になるように混合した溶媒であり、c)溶媒は、ヘキサンとクロロホルムとメタノールとの比が7:7:0.5になるように混合した溶媒であり、d)溶媒は、ヘキサンとクロロホルムとメタノールとの比が2:8:1になるように混合した溶媒であり、e)溶媒は、クロロホルムとメタノールとの比が8:2になるように混合した溶媒であり、f)溶媒は、クロロホルムとメタノールとの比が7:3になるように混合した溶媒であり、g)溶媒は、クロロホルムとメタノールとの比が5:5になるように混合した溶媒である。
【0024】
得られた各画分を、前同様、減圧下、濃縮・乾固し、1から1000ppmの濃度に調整し、各シャーレ内に配置した濾紙(No.1、ADVANTEC社製)に含浸させた後、レタス種子を5粒ずつ、各シャーレの濾紙上に播種し、25℃の温度、暗所で3日間培養後、芽生えの下胚軸及び幼根の長さを測定した。
【0025】
図2は、植物エキスをカラムクロマトグラフィーによって分画して得られた各画分のレタス種子の芽生えの下胚軸及び幼根に対する影響を調査した結果の一部を示す棒グラフであり、図中、縦軸は成長率(%)を、横軸は濃度(ppm)をそれぞれ表している。また、b)、c)、d)及びe)は、前述した各b)からe)の各溶媒をそれぞれ示している。なお、コントロールは水を濾紙に含浸させてある。また、成長率は次の(1)式によって求めた。
成長率=(対象の長さ/コントロールの長さ)×100 …(1)
【0026】
図2から明らかな如く、d)溶媒による画分はいずれの濃度でも高い成長率を示しており、1000ppmの低濃度において、100ppmと略同じ成長率を示していた。
【0027】
このd)溶媒による画分中の成分を、IR、NMR及びGC−MS等によって構造を確認したところ、1,2−プロパンジオールであった。
【0028】
一方、市販されている合成型の1,2−プロパンジオールを用いて、前同様、レタスの芽生えの下胚軸及び幼根の長さを測定したところ、1〜1000ppmで上述した天然型の1,2−プロパンジオールと略同様の成長率を示した。
【0029】
【発明の効果】
本発明によれば、1,2−プロパンジオールを有効成分として含有するため、植物生理活性調整作用、特に植物生長促進作用を有するのに加え、保存安定性が高く、哺乳類に対する毒性が低い。更に、1,2−プロパンジオールは水又は油等と容易に混合し得るため、取り扱いも容易である。また、合成型の1,2−プロパンジオールは廉価である等、本発明は優れた効果を奏する。
【図面の簡単な説明】
【図1】植物エキスの製造工程を示す工程図である。
【図2】植物エキスをカラムクロマトグラフィーによって分画して得られた各画分のレタス種子の芽生えの下胚軸及び幼根に対する影響を調査した結果の一部を示す棒グラフである。
【符号の説明】
S1 破砕工程
S2 抽出工程
S3 調合工程
S4 熟成工程[0001]
TECHNICAL FIELD OF THE INVENTION
The present invention relates to a plant growth promoter.
[0002]
Problems to be solved by the prior art and the invention
Although drugs having a function of promoting plant growth, such as gibberellins and auxins, are commercially available, further development of plant growth promoters is required from the viewpoints of storage stability, price and properties.
[0003]
The present invention has been made to solve such a problem, and an object of the present invention is to provide a new plant growth promoter.
[0004]
[Means for Solving the Problems]
The plant growth promoter according to the present invention is characterized by containing 1,2-propanediol as an active ingredient.
[0005]
BEST MODE FOR CARRYING OUT THE INVENTION
The present inventor has been conducting research and development for many years on the production and use of plant extracts, and has found that plant extracts produced by the newly developed production method exhibit various plant physiological activity regulating effects. Was. The plant extract was analyzed for a component exhibiting a plant physiological activity regulating action. As a result, it was found that 1,2-propanediol exhibits a plant growth promoting action, and the present invention was achieved. completed.
[0006]
That is, the plant growth promoter of the present invention contains 1,2-propanediol as an active ingredient. 1,2-propanediol has been approved as a food additive and is generally known to have antibacterial and antifungal activities, but 1,2-propanediol has a plant growth promoting action That was not recognized. This 1,2-propanediol has high storage stability and low toxicity to mammals. Further, 1,2-propanediol can be easily mixed with water, oil, or the like, and is therefore easy to handle. In addition, it was confirmed that synthetic 1,2-propanediol was inexpensive, while synthetic 1,2-propanediol had a plant growth promoting action comparable to that of the natural type.
[0007]
【Example】
Hereinafter, the contents of the present invention will be described in detail.
FIG. 1 is a process chart showing a process for producing a plant extract. Examples of plants that are the raw materials of such plant extracts include hinoki, hinoki cypress, rat, sawara, cedar, camphor, pine, birch, beech, chestnut, forsythia, mate, oak, kobushi, mountain cherry, persimmon leaf, camellia, nanten Raw plant group including, Kumasa, Hiokikoshi, mugwort, aloe leaf, tea leaf stem, sweet tea vine leaf stem, fir, sansho leaf stem, akebi berry, hawkkin berry, lemon fruit, mountain hydrangea, carrot leaf Are used as raw materials.
[0008]
Such raw materials are separately charged into a crusher and crushed (including cutting) (S1) to obtain crushed raw materials having an appropriate fineness (preferably having a diameter of 8 mm or less). Then, for each of the plurality of crushed raw materials, one or more extraction operations selected from an extraction operation group including dry distillation, distillation, steam distillation, and squeezing are performed to obtain an extract of each of the crushed raw materials (S2).
[0009]
Steam distillation (S21) is performed by blowing steam generated at a temperature of 100 ° C to 120 ° C at a pressure of 1.0 × 10 5 Pa to 1.2 × 10 5 Pa into a crushed raw material (extraction target). Do.
[0010]
The dry distillation (S22) is performed by heating the crushed raw material (to be extracted) to a temperature in the range of 100C to 350C, preferably 150C to 300C. As the heating temperature becomes lower than 100 ° C., the extraction rate of components such as folic acid, choline folate, various terpenes, amino acids, α-pinene, β-pinene, hinokitiol, camphene, and citric acid starts to decrease, and the heating temperature becomes 300 ° C. As the temperature became higher than 0 ° C, the extraction ratio of the active ingredient decreased, and the colorability, viscosity, and the like were significantly deteriorated. On the other hand, the extract obtained by dry distillation at a temperature in the range of 150 ° C. to 300 ° C. was excellent in the results of a sensory test and the like.
[0011]
Note that the dry distillation may be performed under a pressure of about 8 × 10 4 Pa. In this case, since it is possible to carry out dry distillation at a relatively low heating temperature, folic acid, choline folate, various terpenes, amino acids, α-pinene, β-pinene, hinokitiol, camphene, citric acid, etc. Thermal decomposition can be suppressed.
[0012]
On the other hand, in the distillation (S23), after water is added to the crushed plant (to be extracted) and the extraction target is sufficiently hydrated, while heating to a temperature in the range of 50C to 100C, preferably 60C to 70C. , At a pressure of about 8 × 10 4 Pa. As the heating temperature falls below 50 ° C., the extraction rate of components such as chlorophyll, acetic acid, vitamin A, vitamin B, vitamin C and vitamin K decreases, and as the heating temperature rises above 100 ° C., these components are thermally decomposed. Is done. On the other hand, the extract obtained by dry distillation at a temperature in the range of 60 ° C. to 70 ° C. was excellent in the results of the sensory test and the like.
[0013]
On the other hand, juice (S24) is carried out mainly for the raw material plants, such as grasses, leaves, fruit, after it or hydrolysis, by squeezing at a pressure of 2.0 × 10 5 Pa~3.0 × 10 5 Pa .
[0014]
Such an extraction operation may be performed alone or in combination depending on the type of the raw material plant. For example, the dry distillation may be performed on the raw material plant after performing the steam distillation, or the steam distillation may be performed on the raw material plant after performing the squeezing. Further, the secondary carbonization may be carried out at a temperature different from that of the primary carbonization for the raw material plant that has been subjected to the primary carbonization. On the other hand, a plurality of types of extract may be obtained by performing different types of extraction operations on one type of raw material plant.
[0015]
In this way, extracts are obtained for each raw material plant, and the obtained extracts are mixed by stirring to obtain an appropriate ratio (S3). Each extract may be purified and decolored by distillation under reduced pressure or the like. This preparation is aged in the dark for several days to several years to obtain a plant extract (S4, S5). During this aging, useful components increase due to the chemical reaction of each component in the preparation. The plant extract may be a natural activated carbon such as coconut shell charcoal, bone charcoal or charcoal, or a synthetic activated carbon fired from resin or rubber or the like, and / or a sulfonic acid type, methacrylic acid type or acrylic acid type ion exchange. The resin may be decolorized.
[0016]
Such plant extracts, in addition to 1,2-propanediol, exhibit one or more of deodorant and fungicidal fungicidal action, folic acid, chlorophyll, choline folate, various terpenes, amino acids, α-pinene, β-pinene, hinokitiol, Components such as camphene, citric acid, acetic acid, vitamin A, vitamin B, vitamin C, and vitamin K can be extracted at a high extraction rate without being decomposed, and the oily component is an emulsion without adding an emulsifier. A plant extract in a liquefied state can be produced.
[0017]
The plant extract thus obtained is concentrated under reduced pressure at a temperature of about 35 ° C., and is subjected to solvent extraction with hexane / chloroform / methanol or the like, or column chromatography filled with silica gel or the like to obtain 1,2. -Separation and purification of propanediol. The natural 1,2-propanediol thus obtained exhibited a plant growth promoting action at a concentration of about 1 ppm.
[0018]
By the way, not only the natural type 1,2-propanediol but also the synthesized 1,2-propanediol showed a plant growth promoting effect substantially equal to that of the natural type 1,2-propanediol.
[0019]
Next, the results of testing the plant extract produced by the above-described production method for a plant growth promoting effect, which is one of the plant physiological activity regulating effects, will be described.
Table 1 is a table showing the results of testing the plant growth promoting action of the plant growth promoter according to the present invention. In Table 1, in the present invention example, the plant extract produced as described above was diluted 10,000 times with water, and the diluted plant extract was grown on Chinese cabbage, spinach, Takana, white turnip, white turnip, red turnip and radish, respectively, growing in the same field. The results are shown by weighing the total weight of five vegetables for each harvested vegetable, cultivating and cultivating by foliar spraying twice a week, and the comparative example is Chinese cabbage growing in the same field. , Horenzo, Takana, White turnip, Red turnip and radish were cultivated by spraying water on the foliage twice a week, and the results of weighing the total weight of five harvested vegetables were shown. Things.
[0020]
[Table 1]
Figure 2004300069
[0021]
As is evident from Table 1, when the plant growth promoter according to the present invention was used, the total weight of five leaf vegetables such as Chinese cabbage, horenzo and Takana was 1.41 times that in the case where the plant growth promoter was not used. Roots such as white turnip, red turnip and radish increased significantly from 1.32 to 2.33 times. In the root vegetables, no significant increase was observed in the total weight of the leaves.
[0022]
Next, the results of purifying and extracting 1,2-propanediol from a plant extract and testing the plant growth promoting action will be described.
Purification and extraction of 1,2-propanediol from a plant extract was performed as follows. The plant extract produced as described above is concentrated and dried at 35 ° C. under reduced pressure by an evaporator, dissolved in a small amount of hexane, an appropriate amount of silica gel is added thereto, and the same operation as before is performed to dryness. did. Silica gel suspended in hexane is filled and equilibrated in a glass column, and silica gel dried with a plant extract as described above is added onto silica gel in the glass column, and the following a) to g) solvents are used. The column was eluted and subjected to column chromatography to obtain a plurality of fractions corresponding to each solvent.
[0023]
a) the solvent is a solvent mixed such that the ratio of hexane and chloroform is 7: 3; b) the solvent is a solvent mixed such that the ratio of hexane and chloroform is 5: 5; c) The solvent is a solvent mixed such that the ratio of hexane, chloroform and methanol is 7: 7: 0.5, and d) the solvent is a mixture of hexane, chloroform and methanol of 2: 8: 1. E) The solvent is a solvent mixed such that the ratio of chloroform and methanol is 8: 2, and f) The solvent is a solvent mixed such that the ratio of chloroform and methanol is 7: 3. G) The solvent is a solvent mixed such that the ratio of chloroform to methanol is 5: 5.
[0024]
Each of the obtained fractions was concentrated and dried under reduced pressure as described above, adjusted to a concentration of 1 to 1000 ppm, and impregnated into filter paper (No. 1, manufactured by ADVANTEC) placed in each petri dish. , 5 seeds of lettuce seeds were sown on the filter paper of each petri dish, and cultured for 3 days in a dark place at a temperature of 25 ° C., and the hypocotyl and radicle length of the seedlings were measured.
[0025]
FIG. 2 is a bar graph showing a part of the results obtained by investigating the effects on the lower hypocotyl and radicle of seedlings of lettuce seeds of each fraction obtained by fractionating a plant extract by column chromatography. The vertical axis represents the growth rate (%), and the horizontal axis represents the concentration (ppm). Further, b), c), d) and e) indicate the respective solvents b) to e) described above. In addition, the control impregnated the filter paper with water. The growth rate was obtained by the following equation (1).
Growth rate = (length of subject / length of control) × 100 (1)
[0026]
As is clear from FIG. 2, the fraction obtained by d) solvent showed a high growth rate at any concentration, and at a low concentration of 1000 ppm, the growth rate was almost the same as 100 ppm.
[0027]
The structure of the component in the fraction obtained by the d) solvent was confirmed by IR, NMR, GC-MS and the like, and was found to be 1,2-propanediol.
[0028]
On the other hand, when the length of the hypocotyl and radicle of shoots of lettuce were measured using a commercially available synthetic type 1,2-propanediol as before, the natural type 1-1000 ppm was obtained at 1 to 1000 ppm. , 2-propanediol.
[0029]
【The invention's effect】
ADVANTAGE OF THE INVENTION According to this invention, since it contains 1,2-propanediol as an active ingredient, in addition to having a plant physiological activity regulating action, particularly a plant growth promoting action, storage stability is high and toxicity to mammals is low. Further, 1,2-propanediol can be easily mixed with water, oil, or the like, and is therefore easy to handle. In addition, the present invention has excellent effects, such as inexpensive synthetic 1,2-propanediol.
[Brief description of the drawings]
FIG. 1 is a process chart showing a process for producing a plant extract.
FIG. 2 is a bar graph showing part of the results obtained by investigating the effects of lettuce seeds on seedling germination, hypocotyl and radicle of fractions obtained by fractionating a plant extract by column chromatography.
[Explanation of symbols]
S1 Crushing step S2 Extraction step S3 Mixing step S4 Aging step

Claims (1)

1,2−プロパンジオールを有効成分として含有することを特徴とする植物成長促進剤。A plant growth promoter comprising 1,2-propanediol as an active ingredient.
JP2003095375A 2003-03-31 2003-03-31 Plant growth promoter Pending JP2004300069A (en)

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Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN101810096A (en) * 2010-04-16 2010-08-25 王旭强 Method for cultivating greenhouse lettuces
JP2018002697A (en) * 2016-06-30 2018-01-11 飛騨産業株式会社 Method for producing cedar wood part and cedar branch leaf component distillation liquid plant energy liquid formulation

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS52136768A (en) * 1976-05-08 1977-11-15 Riyuuichi Matsushita Plant growth stilumater and process for producing same
JPS58167501A (en) * 1982-03-29 1983-10-03 Hokko Chem Ind Co Ltd Preventing agent for germination of ear
JPH0859421A (en) * 1994-08-26 1996-03-05 Taagen Tex:Kk Solidified material of pyroligneous acid and production thereof

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS52136768A (en) * 1976-05-08 1977-11-15 Riyuuichi Matsushita Plant growth stilumater and process for producing same
JPS58167501A (en) * 1982-03-29 1983-10-03 Hokko Chem Ind Co Ltd Preventing agent for germination of ear
JPH0859421A (en) * 1994-08-26 1996-03-05 Taagen Tex:Kk Solidified material of pyroligneous acid and production thereof

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN101810096A (en) * 2010-04-16 2010-08-25 王旭强 Method for cultivating greenhouse lettuces
CN101810096B (en) * 2010-04-16 2011-05-25 王旭强 Method for cultivating greenhouse lettuces
JP2018002697A (en) * 2016-06-30 2018-01-11 飛騨産業株式会社 Method for producing cedar wood part and cedar branch leaf component distillation liquid plant energy liquid formulation

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