JP2016216450A - Pollen inhibitor and pollen inhibition method - Google Patents
Pollen inhibitor and pollen inhibition method Download PDFInfo
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- JP2016216450A JP2016216450A JP2016095914A JP2016095914A JP2016216450A JP 2016216450 A JP2016216450 A JP 2016216450A JP 2016095914 A JP2016095914 A JP 2016095914A JP 2016095914 A JP2016095914 A JP 2016095914A JP 2016216450 A JP2016216450 A JP 2016216450A
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Abstract
Description
本発明は、花粉症の原因であるスギやヒノキなどの植物の花粉の形成を抑制する花粉形成抑制剤および該花粉形成抑制剤を用いた花粉形成抑制方法に関する。 The present invention relates to a pollen formation inhibitor that suppresses the formation of pollen of plants such as cedar and cypress that cause hay fever, and a method for suppressing pollen formation using the pollen formation inhibitor.
スギ花粉やヒノキ花粉などによる花粉症は、春先の2月から5月にかけて発生し、日本の代表的なアレルギー疾患の一つとなっている。花粉症の発症率は年々高くなり、大きな問題となっている。現在、花粉症の対策として、花粉形成が少ないスギ品種が開発され、一部で改植が行われている。しかしながら、全てのスギを改植するには、百年以上かかると計算されており、早急な対策としては現実的ではない。 Pollen disease caused by cedar pollen and cypress pollen occurs from February to May in early spring and is one of the representative allergic diseases in Japan. The incidence of hay fever is increasing year by year and is a major problem. At present, cedar varieties with less pollen formation have been developed as countermeasures against hay fever, and some of them have been replanted. However, it is calculated that it takes more than 100 years to replant all cedars, so it is not realistic as an immediate measure.
そこで、これまで、スギ花粉やヒノキ花粉の形成抑制や飛散防止を目的として種々の研究が行われており、例えば、オレイン酸もしくはリノール酸などの植物油脂(特許文献1)や脂肪酸の多価アルコールエステル(特許文献2参照)を花粉飛散防止剤として使用し、かかる花粉飛散防止剤を散布する方法が報告されている。しかし、特許文献1,2の方法では、花粉飛散防止剤を必ず散布しなければならず、対象植物の大きさや生息環境によっては散布が困難な場合があった。更に、花粉飛散防止剤の散布により、対象地域に存在する他の植物にまで影響を及ぼす虞もあった。
また、特許文献3には、スギ雄花寄生菌を含む花粉飛散抑制剤を用いて雄花を枯死させる方法が開示されている。しかしながら、特許文献3の方法は、製造コストが高く、また、気象条件や環境条件によって効果が左右されるため、実用化には至っていない。
So far, various studies have been conducted for the purpose of suppressing the formation and prevention of scattering of cedar pollen and cypress pollen. For example, vegetable oils such as oleic acid or linoleic acid (Patent Document 1) and polyhydric alcohols of fatty acids. There has been reported a method in which an ester (see Patent Document 2) is used as a pollen scattering inhibitor and the pollen scattering inhibitor is sprayed. However, in the methods of Patent Documents 1 and 2, the pollen scattering inhibitor must be sprayed, and it may be difficult to spray depending on the size of the target plant and the habitat environment. Furthermore, there is a possibility that other plants existing in the target area may be affected by the application of the pollen scattering inhibitor.
Patent Document 3 discloses a method for killing male flowers using a pollen scattering inhibitor containing cedar male flower parasitic fungi. However, the method of Patent Document 3 has a high manufacturing cost, and its effect is influenced by weather conditions and environmental conditions, so that it has not been put into practical use.
ところで、イマザモックス等のアセト乳酸合成酵素阻害剤は、従来、雑草等の除草剤の有効成分として使用されてきた(特許文献4参照)。しかし、アセト乳酸合成酵素阻害剤にスギやヒノキ等の植物に対する花粉形成抑制効果があるか否かについては、わかっていなかった。 By the way, an acetolactate synthase inhibitor such as imazamox has been conventionally used as an active ingredient of herbicides such as weeds (see Patent Document 4). However, it has not been known whether an acetolactate synthase inhibitor has a pollen formation inhibitory effect on plants such as cedar and cypress.
本発明が解決しようとする課題は、スギやヒノキなどの植物の花粉の形成を抑制して飛散を防止することができ、該植物に対して悪影響を及ぼさず、更に経済的かつ実用的な花粉形成抑制剤を提供することである。本発明はまた、該花粉形成抑制剤を用いた花粉形成抑制方法を提供することを目的とする。 The problem to be solved by the present invention is to prevent pollen formation by suppressing the formation of pollen of plants such as cedar and cypress, and to have an adverse effect on the plant, and more economical and practical pollen. It is to provide a formation inhibitor. Another object of the present invention is to provide a method for inhibiting pollen formation using the pollen formation inhibitor.
上記課題を解決するため、発明者らは鋭意検討を行った結果、有効成分としてアセト乳酸合成酵素阻害剤を含有する花粉形成抑制剤を用いることにより、スギやヒノキなどの植物の花粉形成を効率的に抑制することができることを見出した。 In order to solve the above-mentioned problems, the inventors have conducted intensive studies. It was found that it can be suppressed.
即ち、本発明は以下の内容で構成されている。
1.アセト乳酸合成酵素阻害剤を含有することを特徴とする花粉形成抑制剤。
That is, the present invention has the following contents.
1. A pollen formation inhibitor comprising an acetolactate synthase inhibitor.
本発明の花粉形成抑制剤の好適な態様は以下の通りである。
2.アセト乳酸合成酵素阻害剤を有効成分として含有することを特徴とする、前記1に記載の花粉形成抑制剤。
Preferred embodiments of the pollen formation inhibitor of the present invention are as follows.
2. 2. The pollen formation inhibitor as described in 1 above, comprising an acetolactate synthase inhibitor as an active ingredient.
3.前記アセト乳酸合成酵素阻害剤として、イマザモックス、イマザピック、イマザピル
、またはイマザキンを含むことを特徴とする、前記1または2に記載の花粉形成抑制
剤。
3. 3. The pollen formation inhibitor according to 1 or 2 above, which contains imazamox, imazapic, imazapill, or imazaquin as the acetolactate synthase inhibitor.
4.前記アセト乳酸合成酵素阻害剤として、イマザモックスまたはイマザピックを含むこ
とを特徴とする、前記1〜3のいずれかに記載の花粉形成抑制剤。
4). 4. The pollen formation inhibitor according to any one of 1 to 3, wherein imazamox or imazapic is included as the acetolactate synthase inhibitor.
5.スギ花粉またはヒノキ花粉の形成を抑制することを特徴とする、前記1〜4のいずれ
かに記載の花粉形成抑制剤。
5. 5. The pollen formation inhibitor according to any one of 1 to 4 above, which suppresses the formation of cedar pollen or cypress pollen.
また、本発明によれば、以下の内容で構成されている花粉形成抑制方法が提供される。
6.前記1〜5のいずれかに記載の花粉形成抑制剤を用いる花粉形成抑制方法。
Moreover, according to this invention, the pollen formation suppression method comprised by the following content is provided.
6). The pollen formation suppression method using the pollen formation inhibitor in any one of said 1-5.
本発明の花粉形成抑制方法の好適な態様は以下の通りである。
7.前記花粉形成抑制剤を、スギ樹幹またはヒノキ樹幹の内部に供給することを特徴とす
る、前記6に記載の花粉形成抑制方法。
Preferred embodiments of the pollen formation suppressing method of the present invention are as follows.
7). 7. The method for inhibiting pollen formation according to 6 above, wherein the pollen formation inhibitor is supplied to the inside of a cedar tree trunk or a hinoki tree trunk.
8.前記花粉形成抑制剤を、スギ樹幹またはヒノキ樹幹に塗布することを特徴とする、前
記6に記載の花粉形成抑制方法。
8). 7. The method for inhibiting pollen formation according to 6 above, wherein the pollen formation inhibitor is applied to a cedar tree trunk or a hinoki tree trunk.
9.前記花粉形成抑制剤を、スギ枝葉またはヒノキ枝葉に散布することを特徴とする、前
記6に記載の花粉形成抑制方法。
9. 7. The method for inhibiting pollen formation according to 6 above, wherein the pollen formation inhibitor is sprayed on cedar branches and cypress branches and leaves.
10.前記花粉形成抑制剤を、スギの根またはヒノキの根が分布している土壌に散布また
は潅注することを特徴とする、前記6に記載の花粉形成抑制方法。
10. 7. The method for inhibiting pollen formation according to 6 above, wherein the pollen formation inhibitor is sprayed or irrigated on soil in which cedar roots or cypress roots are distributed.
11.樹木1本あたりのアセト乳酸合成酵素阻害剤の量が0.05μg〜2000mgと
なるように、前記花粉形成抑制剤を、スギまたはヒノキの樹幹内部に供給すること
を特徴とする、前記7に記載の花粉形成抑制剤。
11. 8. The pollen formation inhibitor is supplied into the trunk of a cedar or cypress so that the amount of an acetolactate synthase inhibitor per tree is 0.05 μg to 2000 mg. Pollen formation inhibitor.
12.樹高20m以上の樹木1本あたりのアセト乳酸合成酵素阻害剤の量が1mg〜20
00mgとなるように、前記花粉形成抑制剤を、スギまたはヒノキの樹幹内部に供
給することを特徴とする、前記11に記載の花粉形成抑制剤。
12 The amount of an acetolactate synthase inhibitor per tree with a height of 20 m or more is 1 mg to 20
12. The pollen formation inhibitor as described in 11 above, wherein the pollen formation inhibitor is supplied to the inside of a cedar or cypress tree trunk so as to be 00 mg.
13.樹木1本あたりのアセト乳酸合成酵素阻害剤の量が2μg〜5000mgとなるよ
うに、前記花粉形成抑制剤を、スギまたはヒノキの樹幹に塗布することを特徴とす
る、前記8に記載の花粉形成抑制剤。
13. 9. The pollen according to 8 above, wherein the pollen formation inhibitor is applied to a cedar or cypress tree trunk so that the amount of an acetolactate synthase inhibitor per tree is 2 μg to 5000 mg. Formation inhibitor.
14.樹高20m以上の樹木1本あたりのアセト乳酸合成酵素阻害剤の量が2mg〜50
00mgとなるように、前記花粉形成抑制剤を、スギまたはヒノキの樹幹に塗布す
ることを特徴とする、前記13に記載の花粉形成抑制剤。
14 The amount of acetolactate synthase inhibitor per tree with a height of 20 m or more is 2 mg to 50
14. The pollen formation inhibitor as described in 13 above, wherein the pollen formation inhibitor is applied to a tree trunk of cedar or cypress so as to be 00 mg.
15.林1haあたりのアセト乳酸合成酵素阻害剤の量が10g〜500gとなるように
、前記花粉形成抑制剤を、スギまたはヒノキの林に散布することを特徴とする、前
記9に記載の花粉形成抑制剤。
15. The pollen formation according to 9 above, wherein the pollen formation inhibitor is sprayed on a cedar or cypress forest so that the amount of an acetolactate synthase inhibitor per 1 ha of the forest is 10 g to 500 g. Inhibitor.
16.林1haあたりのアセト乳酸合成酵素阻害剤の量が100g〜5000gとなるよ
うに、前記花粉形成抑制剤を、スギまたはヒノキの根が分布している土壌に散布ま
たは潅注することを特徴とする、前記10に記載の花粉形成抑制剤。
16. The pollen formation inhibitor is sprayed or irrigated on the soil where cedar or cypress roots are distributed so that the amount of acetolactate synthase inhibitor per forest ha is 100 to 5000 g. The pollen formation inhibitor as described in 10 above.
本発明は、アセト乳酸合成酵素阻害剤を使用する点に重要な特徴を有する。アセト乳酸合成酵素阻害剤については、例えば特許文献4に開示されているように、雑草を衰弱させ、これにより雑草の着花を抑制することができるので、除草剤として機能しうることが知られていた。しかし、極めて驚くべきことに、本発明者らの検討により、このアセト乳酸合成酵素阻害剤には、スギやヒノキなどの植物の花粉の形成を抑制して花粉の飛散を防止することができ、しかも植物自体は枯らさない、という性質があることがわかった。即ち、本発明によれば、スギやヒノキ等の植物の生育状態を損なうことなく、花粉の形成を選択的に抑制することができるのである。更に、本発明では、散布はもちろん、それ以外の手段も採用することができ、製造コストも低く、花粉形成防止効果が安定して発揮されるので、経済性・実用性の点で優れている。加えて、特に花粉形成抑制剤を樹幹内部に供給する手段を採用する場合には、対象植物のみに花粉形成抑制剤を与え、周辺環境への影響を最小限に抑えることができる。 The present invention has an important feature in that an acetolactate synthase inhibitor is used. About an acetolactate synthase inhibitor, for example, as disclosed in Patent Document 4, it is known that it can function as a herbicide because it can weaken weeds and thereby suppress weeding of weeds. It was. However, surprisingly, according to the study by the present inventors, this acetolactate synthase inhibitor can prevent pollen scattering by suppressing the formation of pollen of plants such as cedar and cypress, Moreover, it was found that the plant itself does not wither. That is, according to the present invention, pollen formation can be selectively suppressed without impairing the growth state of plants such as cedar and cypress. Furthermore, in the present invention, other means can be adopted as well as spraying, the production cost is low, and the pollen formation preventing effect is stably exhibited, which is excellent in terms of economy and practicality. . In addition, in particular, when a means for supplying a pollen formation inhibitor to the inside of a tree trunk is adopted, the pollen formation inhibitor can be given only to the target plant to minimize the influence on the surrounding environment.
以下、本発明の実施の形態について詳細に説明する。なお、本発明は、以下の実施形態に限定されるものではなく、その要旨の範囲内で種々変形して実施することができる。 Hereinafter, embodiments of the present invention will be described in detail. In addition, this invention is not limited to the following embodiment, It can implement by changing variously within the range of the summary.
<花粉形成抑制剤>
本発明の花粉形成抑制剤は、アセト乳酸合成酵素阻害剤を含有する。アセト乳酸合成酵素阻害剤は、アミノ酸生合成に関与するアセト乳酸合成酵素を阻害することにより、植物の成長を停止させる活性を有する。本発明においては、かかる活性を有するものであれば、公知の阻害剤を制限なく用いることができる。具体的には、ベンスルフロンメチル、アジムスルフロン、エトキシスルフロン、ピラゾスルフロンエチル、イマゾスルフロンエチル、シクロスルファムロンなどのスルホニルウレア系化合物;イマザモックス{例えば下記式(1)で表される}、イマザピック{例えば下記式(2)で表される}、イマザピル{例えば下記式(3)で表される}、イマザメタベンズメチル、イマザキン{例えば下記式(4)で表される}、イマゼタピルなどのイミダゾリノン系化合物;ピリミノバックメチル、ビスピリバック−ナトリウム塩、ペノキススラム、フロラスラムなどのピリミジルオキシ安息香酸系化合物;等を用いることができる。これらは、1種を単独で、または2種以上を組み合わせて用いることができる。
<Pollen formation inhibitor>
The pollen formation inhibitor of the present invention contains an acetolactate synthase inhibitor. An acetolactate synthase inhibitor has an activity to stop plant growth by inhibiting acetolactate synthase involved in amino acid biosynthesis. In the present invention, any known inhibitor can be used as long as it has such activity. Specifically, sulfonylurea compounds such as bensulfuron methyl, azimusulfuron, ethoxysulfuron, pyrazosulfuron ethyl, imazosulfuron ethyl, cyclosulfamuron; imazamox {for example, represented by the following formula (1)}, imazapic { For example, represented by the following formula (2)}, imazapyr {for example, represented by the following formula (3)}, imazametabenzmethyl, imazaquin {for example, represented by the following formula (4)}, imidazo such as imazetapill Linon-based compounds; pyrimidyloxybenzoic acid-based compounds such as pyriminobac-methyl, bispyribac-sodium salt, penoxsulam, and florathram; and the like can be used. These can be used alone or in combination of two or more.
アセト乳酸合成酵素阻害剤としては、イミダゾリノン系化合物が好ましく、イマザモックス、イマザピック、イマザピル、またはイマザキンがより好ましく、イマザモックスまたはイマザピックが特に好ましい。尚、本明細書において、イマザモックス、イマザピック、イマザピルおよびイマザキンには、これらのアンモニウム塩やアミン塩等の塩、構造異性体も含まれるものとする。 The acetolactate synthase inhibitor is preferably an imidazolinone compound, more preferably imazamox, imazapic, imazapill, or imazaquin, particularly preferably imazamox or imazapic. In this specification, imazamox, imazapic, imazapill and imazaquin include salts such as ammonium salts and amine salts, and structural isomers.
本発明に係る花粉形成抑制剤は、アセト乳酸合成酵素阻害剤を含有することにより、雄花の着花を抑制し、植物の花粉の形成を抑制することができる。植物の種類としては、花粉を形成する植物であれば特に限定されないが、具体的には、スギ、ヒノキ、ネズなどのヒノキ科;ヨモギ、ブタクサ、タンポポ、セイタカアワダチソウ、コスモスなどのキク科;シバ類、スズメノテッポウ、カモガヤ、スズメノカタビラなどのイネ科;カナムグラなどのアサ科;コナラ、クリなどのブナ科;シラカンバ、ハンノキ、ヤシャブシなどのカバノキ科;テンサイなどのヒユ科;イチゴ、モモ、リンゴ、ウメ、ナシ、サクラなどのバラ科;タデ科;アカマツ、クロマツなどのマツ科;イラクサ科;ケヤキなどのニレ科;クルミ科;イチョウ科;マメ科;ヤナギ科;ナス科;ブドウ科;ナデシコ科;ツバキ科;アブラナ科;ミカン科;ユリ科;セリ科;モクセイ科;イチイ科;オオバコ科;マキ科;などの植物があげられる。本発明の適用対象植物としては、本発明の効果が最大限に発揮されるという観点から、風媒花(花粉が風によって媒介されて移動し、受粉する花)を持つ植物、例えばヒノキ科、ヨモギ、ブタクサ、イネ科、ブナ科、カバノキ科、ヒユ科、マツ科、イチョウ科、イラクサ科、ニレ科、クルミ科、ナス科、マキ科が好ましく、ヒノキ科がより好ましく、特にスギまたはヒノキが好ましい。 By containing the acetolactate synthase inhibitor, the pollen formation inhibitor according to the present invention can suppress flowering of male flowers and suppress the formation of plant pollen. The type of plant is not particularly limited as long as it is a plant that forms pollen, and specifically, cypress family such as cedar, cypress, and mouse; Gramineae, such as genus, sparrows, camodia, sparrows, and other species; Asaidae, such as canamgras; Rosaceae such as pears and cherry; Taceae; Pinaceae such as red pine and black pine; Nettles; Elmaceae such as zelkova; Walnuts; Ginkgoceae; Legumes; Willowaceae; Plants such as Brassicaceae; Brassicaceae; Citrus; Lily; Ceratoceae; Oleaceae; Yew; And the like. As a plant to which the present invention is applied, from the viewpoint of maximizing the effects of the present invention, a plant having an airborne flower (flower that pollen moves and pollinates mediated by wind), such as cypress, mugwort, Ragweed, gramineous, beech, birch, pine, pine, ginkgo, nettle, elm, walnut, solanaceae, cypress are preferred, cypress are more preferred, and cedar or cypress are particularly preferred.
本発明に係る花粉形成抑制剤は、通常、固形製剤、液状製剤、または半固形製剤の製剤形態で用いられる。 The pollen formation inhibitor according to the present invention is usually used in the form of a solid preparation, a liquid preparation, or a semi-solid preparation.
本発明において、アセト乳酸合成酵素阻害剤は、有効成分として含まれていることが好ましく、即ち、かかる阻害剤が有効に機能しうる量で含まれていることが好ましい。具体的には、含有量の下限値が、花粉形成抑制剤全量に対して0.1重量%であることが好ましい。より好適には、固形製剤の場合の下限値は5重量%であり、液状製剤または半固形製剤の場合の下限値は0.1重量%、特に0.3重量%である。一方、薬害を回避する観点から、アセト乳酸合成酵素阻害剤の含有量の上限値は、花粉形成抑制剤全量に対して80重量%であることが好ましい。より好適には、固形製剤の場合の上限値は80重量%であり、液状製剤または半固形製剤の場合の上限値は50重量%、特に20重量%である。 In the present invention, the acetolactate synthase inhibitor is preferably contained as an active ingredient, that is, the inhibitor is preferably contained in an amount capable of functioning effectively. Specifically, the lower limit of the content is preferably 0.1% by weight with respect to the total amount of the pollen formation inhibitor. More preferably, the lower limit in the case of a solid preparation is 5% by weight, and the lower limit in the case of a liquid preparation or a semi-solid preparation is 0.1% by weight, particularly 0.3% by weight. On the other hand, from the viewpoint of avoiding phytotoxicity, the upper limit of the content of the acetolactate synthase inhibitor is preferably 80% by weight with respect to the total amount of the pollen formation inhibitor. More preferably, the upper limit in the case of a solid preparation is 80% by weight, and the upper limit in the case of a liquid preparation or a semi-solid preparation is 50% by weight, in particular 20% by weight.
固形製剤としては、例えば、粒剤(平均粒径:710μm以上)、粉剤(平均粒径:45μm以下)、粉粒剤(平均粒径:45〜710μm)、水和剤、水溶剤、錠剤などがあげられる。 Examples of solid preparations include granules (average particle size: 710 μm or more), powders (average particle size: 45 μm or less), powders (average particle size: 45 to 710 μm), wettable powder, aqueous solvent, tablets, and the like. Can be given.
液状製剤としては、例えば、液剤、乳剤、フロアブル(ゾル)剤、エマルション剤、油剤などがあげられる。 Examples of liquid preparations include liquid agents, emulsions, flowable (sol) agents, emulsion agents, and oil agents.
半固形製剤としては、例えば、ペースト剤、ゲル剤などがあげられる。 Examples of semisolid preparations include pastes and gels.
本発明の花粉形成抑制剤は、公知の方法を用いて製造することができる。例えば、アセト乳酸合成酵素阻害剤と、固体担体や液体担体などの担体と、界面活性剤やその他の補助剤とを適宜選択し、混合することにより製造される。 The pollen formation inhibitor of this invention can be manufactured using a well-known method. For example, it is produced by appropriately selecting and mixing an acetolactate synthase inhibitor, a carrier such as a solid carrier or a liquid carrier, and a surfactant or other auxiliary agent.
固体担体としては、例えば、カオリンクレー、珪石クレー、ろう石クレー、ベントナイト、酸性白土、タルク、珪藻土、ゼオライト(沸石)、酸化ケイ素、ケイ酸塩、炭酸塩、硫酸塩、その他各種塩類などの天然または合成の鉱物の微粉末または粒状物などがあげられる。これらは、1種を単独で、または2種以上を組み合わせて用いることができる。固体担体は、あらかじめ粉砕したものを用いてもよい。 Examples of solid carriers include natural materials such as kaolin clay, silica clay, wax stone clay, bentonite, acid clay, talc, diatomaceous earth, zeolite (zeolite), silicon oxide, silicate, carbonate, sulfate, and other various salts. Alternatively, fine powder or granular materials of synthetic minerals can be used. These can be used alone or in combination of two or more. As the solid carrier, a previously pulverized one may be used.
液体担体としては、例えば、水;脂肪族炭化水素、芳香族炭化水素、灯油、マシン油、などの炭化水素類;アルコール類;シクロヘキサノンなどのケトン類;脂肪酸メチルエステルなどのエステル類;ヤシ油、大豆油、菜種油などの植物油;ジメチルスルホキシド、アセトニトリルなどの有機溶剤;などがあげられる。これらは、1種を単独で、または2種以上を組み合わせて用いることができる。液体担体としては、環境への影響を考慮して、水を用いることが好ましい。また、液体担体は、上記固体担体を混合して使用してもよい。 Examples of the liquid carrier include water; hydrocarbons such as aliphatic hydrocarbons, aromatic hydrocarbons, kerosene and machine oil; alcohols; ketones such as cyclohexanone; esters such as fatty acid methyl esters; coconut oil, Vegetable oils such as soybean oil and rapeseed oil; organic solvents such as dimethyl sulfoxide and acetonitrile; These can be used alone or in combination of two or more. As the liquid carrier, water is preferably used in consideration of the influence on the environment. Further, the liquid carrier may be used by mixing the solid carrier.
界面活性剤としては、例えば、ジアルキルスルホサクシネート塩、アルキルアリールスルホネート塩、ポリオキシエチレンアルキルエーテルホスフェート塩などの陰イオン界面活性剤;アルキルグルコシド、ポリオキシエチレンアルキルエーテル、ポリオキシエチレンアルキルフェニルエーテル、ソルビタン脂肪酸エステルなどの非イオン界面活性剤;ポリオキシエチレンアルキルメチルアンモニウム塩、アルキルアミドアミン塩などの陽イオン界面活性剤;などがあげられる。これらは、1種を単独で、または2種以上を組み合わせて用いることができる。 Examples of the surfactant include anionic surfactants such as dialkyl sulfosuccinate salts, alkylaryl sulfonate salts, polyoxyethylene alkyl ether phosphate salts; alkyl glucosides, polyoxyethylene alkyl ethers, polyoxyethylene alkyl phenyl ethers, Nonionic surfactants such as sorbitan fatty acid esters; cationic surfactants such as polyoxyethylene alkylmethylammonium salts and alkylamidoamine salts; and the like. These can be used alone or in combination of two or more.
その他の補助剤としては、例えば、粉砕助剤、粉末化助剤、結合助剤、滑助剤、乳化剤、増粘剤、pH調整剤、塗布剤用補助剤、消泡剤、溶解助剤または懸濁分散助剤などがあげられ、具体的には、糖類、リグニンスルホン酸塩やアルギン酸塩その他の塩類、ポリビニルアルコール、カルボシキメチルセルロース、ステアリン酸、アラビアゴム、有機ベントナイト、フェニルキシリルエタン、ポリエチレングリコール、酢酸ビニル、ワセリンなどがあげられる。これらは、1種を単独で、または2種以上を組み合わせて用いることができる。 Other adjuvants include, for example, a grinding aid, a powdering aid, a binding aid, a slip aid, an emulsifier, a thickener, a pH adjuster, a coating aid, an antifoaming agent, a dissolution aid or Suspension and dispersion aids are listed, and specific examples include sugars, lignin sulfonates, alginates and other salts, polyvinyl alcohol, carboxymethyl cellulose, stearic acid, gum arabic, organic bentonite, phenylxylylethane, and polyethylene. Examples include glycol, vinyl acetate, and petroleum jelly. These can be used alone or in combination of two or more.
本発明の花粉形成抑制剤の製造方法に関し、より具体的には、本発明の花粉形成抑制剤の形態が固形製剤である場合には、例えば、アセト乳酸合成酵素阻害剤と、粉砕した固体担体と、必要に応じて補助剤とを、撹拌機を用いて混合し、アセト乳酸合成酵素阻害剤を固体担体表面に吸着させることにより製造することができる。また、アセト乳酸合成酵素阻害剤と、固体担体と、液体担体と、界面活性剤と、結合助剤などの補助剤とを混合した後、成形し、乾燥して造粒させることにより製造することもできる。 More specifically, when the form of the pollen formation inhibitor of the present invention is a solid preparation, for example, an acetolactate synthase inhibitor and a pulverized solid carrier And, if necessary, an auxiliary agent can be mixed using a stirrer, and the acetolactate synthase inhibitor can be adsorbed on the surface of the solid support. Also, it is manufactured by mixing an acetolactate synthase inhibitor, a solid carrier, a liquid carrier, a surfactant, and an auxiliary agent such as a binding aid, and then shaping, drying and granulating the mixture. You can also.
本発明の花粉形成抑制剤の形態が液状製剤である場合には、例えば、液体担体中で、アセト乳酸合成酵素阻害剤と、界面活性剤などとを混合することにより製造することができる。 When the form of the pollen formation inhibitor of the present invention is a liquid preparation, it can be produced, for example, by mixing an acetolactate synthase inhibitor and a surfactant in a liquid carrier.
本発明の花粉形成抑制剤の形態が半固形製剤である場合には、例えば、上述の方法により液状製剤を調整し、次いで、得られた液状製剤と、有機ベントナイトなどの上記塗布剤用補助剤とを混合して製造することができる。 When the form of the pollen formation inhibitor of the present invention is a semi-solid preparation, for example, a liquid preparation is prepared by the above-mentioned method, and then the obtained liquid preparation and the above-mentioned coating agent auxiliary agent such as organic bentonite And can be mixed.
上記いずれの製造方法においても、混合などの操作に用いる装置としては、例えば、粉砕、分級、混練、撹拌、造粒などの各工程に適した公知の装置を用いることができる。 In any of the above production methods, as a device used for operations such as mixing, for example, a known device suitable for each step such as pulverization, classification, kneading, stirring, and granulation can be used.
本発明に係る花粉形成抑制剤の製剤形態は、後述する処理方法に応じて適宜選択することができる。 The formulation form of the pollen formation inhibitor according to the present invention can be appropriately selected according to the treatment method described later.
<花粉形成抑制方法>
本発明に係る花粉形成抑制剤を用いた花粉形成抑制方法(以下、本発明の花粉形成抑制方法と呼ぶことがある。)について、具体的に説明する。本発明の花粉形成抑制方法における具体的な処理方法としては、例えば、以下があげられる。
(1)花粉形成抑制剤を樹幹内部に直接供給する方法(樹幹内部供給)
(2)花粉形成抑制剤を樹幹に塗布する方法(樹幹塗布)
(3)花粉形成抑制剤を植物に散布する方法(散布)
(4)根が分布している土壌に、花粉形成抑制剤を散布または潅注する方法(土壌処理)
<Pollen formation suppression method>
The pollen formation suppression method using the pollen formation inhibitor according to the present invention (hereinafter sometimes referred to as the pollen formation suppression method of the present invention) will be specifically described. Specific examples of the treatment method in the pollen formation suppressing method of the present invention include the following.
(1) Method of supplying pollen formation inhibitor directly into the trunk (trunk internal supply)
(2) Method of applying pollen formation inhibitor to tree trunk (tree trunk application)
(3) Method of spraying pollen formation inhibitor on plants (spraying)
(4) Method of spraying or irrigating pollen formation inhibitor on soil where roots are distributed (soil treatment)
(1)樹幹内部供給
樹幹内部供給の場合、花粉形成抑制剤は、液状製剤または半固形製剤であることが好ましく、液状製剤であることがより好ましい。具体的な処理方法としては、例えば、花粉を形成する前の樹幹に孔をあけ、スポイト、ピペット、注射器などの注入器を用いて花粉形成抑制剤を孔から注入する方法があげられる。また、注入器による供給に替えて、花粉形成抑制剤含有液を先端に浸み込ませた釘や、含有液入りカプセルを取り付けたピンを孔に差し込んでもよい。花粉形成抑制剤はそのまま使用してもよいが、予め、液体担体を用いて花粉形成抑制剤を適切な濃度に希釈乃至溶解しておき、得られた希釈液乃至溶解液を注入器に入れてもよい。
(1) Internal trunk supply In the case of internal trunk supply, the pollen formation inhibitor is preferably a liquid preparation or a semi-solid preparation, and more preferably a liquid preparation. As a specific treatment method, for example, there is a method of making a hole in a trunk before forming pollen, and injecting a pollen formation inhibitor from the hole using an injector such as a dropper, pipette or syringe. Further, instead of supplying by an injector, a nail in which a pollen formation inhibitor-containing liquid is soaked at the tip or a pin to which a capsule containing the liquid is attached may be inserted into the hole. Although the pollen formation inhibitor may be used as it is, the pollen formation inhibitor is diluted or dissolved in advance to an appropriate concentration using a liquid carrier, and the obtained diluted solution or solution is put into an injector. Also good.
樹幹内部供給に要するアセト乳酸合成酵素阻害剤の量は、樹高等を考慮して決定され、例えばスギまたはヒノキの場合、樹木1本あたり好適には0.05μg〜2000mg、より好適には1μg〜2000mg、特に好適には5μg〜1000mgの範囲の中から、樹高等を考慮して供給量を決定すればよい。具体的には、例えば樹高約2mのスギまたはヒノキの場合、樹木1本あたり1〜2000μgが好ましく、5〜1000μgがより好ましい。また、例えば樹高20m以上のスギまたはヒノキの場合、樹木1本あたり1〜2000mgが好ましく、5〜1000mgがより好ましい。 The amount of the acetolactate synthase inhibitor required for the internal supply of the trunk is determined in consideration of the tree height and the like. For example, in the case of cedar or cypress, 0.05 μg to 2000 mg, more preferably 1 μg to 1 tree. What is necessary is just to determine a supply amount in consideration of tree height etc. out of the range of 2000 mg, particularly preferably 5 μg to 1000 mg. Specifically, for example, in the case of cedar or cypress having a tree height of about 2 m, 1 to 2000 μg is preferable, and 5 to 1000 μg is more preferable per tree. For example, in the case of cedar or cypress having a tree height of 20 m or more, 1 to 2000 mg is preferable per tree, and 5 to 1000 mg is more preferable.
(2)樹幹塗布
樹幹塗布の場合、花粉形成抑制剤は、液状製剤または半固形製剤であることが好ましく、半固形製剤であることがより好ましい。具体的な処理方法としては、例えば、樹幹外樹皮を剥皮して花粉形成抑制剤を塗布する方法があげられる。花粉形成抑制剤はそのまま塗布してもよいが、予め、液体担体を用いて希釈乃至溶解しておき、得られた希釈液乃至溶解液を塗布してもよい。
(2) Tree application In the case of tree application, the pollen formation inhibitor is preferably a liquid preparation or a semisolid preparation, and more preferably a semisolid preparation. As a specific treatment method, for example, a method of peeling a bark outside the trunk and applying a pollen formation inhibitor can be mentioned. The pollen formation inhibitor may be applied as it is, but may be diluted or dissolved in advance using a liquid carrier, and the resulting diluted solution or solution may be applied.
樹幹塗布に要するアセト乳酸合成酵素阻害剤の量は、樹高等を考慮して決定され、例えばスギまたはヒノキの場合、樹木1本あたり好適には2μg〜5000mg、より好適には10μg〜3000mgの範囲の中から、樹高等を考慮して供給量を決定すればよい。具体的には、例えば樹高約2mのスギまたはヒノキの場合、樹木1本あたり2〜5000μgが好ましく、10〜3000μgがより好ましい。また、例えば樹高20m以上のスギまたはヒノキの場合、樹木1本あたり2〜5000mgが好ましく、10〜3000mgがより好ましい。 The amount of the acetolactate synthase inhibitor required for tree application is determined in consideration of tree height and the like. For example, in the case of cedar or cypress, the range is preferably 2 μg to 5000 mg, more preferably 10 μg to 3000 mg per tree. What is necessary is just to determine supply amount considering tree height etc. from among. Specifically, for example, in the case of cedar or cypress having a tree height of about 2 m, the amount is preferably 2 to 5000 μg, more preferably 10 to 3000 μg per tree. For example, in the case of cedar or cypress having a tree height of 20 m or more, 2 to 5000 mg is preferable per tree, and 10 to 3000 mg is more preferable.
(3)散布
散布の場合、花粉形成抑制剤は、液状製剤または固形製剤であることが好ましく、液状製剤であることがより好ましい。具体的な処理方法としては、例えば、スプレー、シャワー、スプリンクラー、ミスト機などの人力式または動力式の噴霧機または散布機などを使用して、花粉形成抑制剤を枝葉、茎、幹、花などの植物表面に散布する方法があげられる。効率よく有効成分が吸収されるという観点から、枝葉に散布することが好ましい。花粉形成抑制剤はそのまま散布してもよいが、予め、液体担体を用いて希釈、溶解あるいは分散させておき、得られた希釈液、溶解液あるいは分散液を散布してもよい。
(3) Application In the case of application, the pollen formation inhibitor is preferably a liquid preparation or a solid preparation, and more preferably a liquid preparation. Specific treatment methods include, for example, a human-powered or powered sprayer or spreader such as a spray, shower, sprinkler, mist machine, etc., and a pollen formation inhibitor is added to branches, stems, stems, flowers, etc. The method of spraying on the plant surface. From the viewpoint that the active ingredient is efficiently absorbed, it is preferably applied to the branches and leaves. The pollen formation inhibitor may be sprayed as it is, but it may be diluted, dissolved or dispersed in advance using a liquid carrier, and the resulting diluted solution, solution or dispersion may be sprayed.
散布処理に要するアセト乳酸合成酵素阻害剤の量は、例えば、スギまたはヒノキの林1haあたり10〜500gが好ましく、25〜250gがより好ましい。 The amount of the acetolactate synthase inhibitor required for the spraying treatment is, for example, preferably 10 to 500 g per 1 ha of cedar or cypress forest, and more preferably 25 to 250 g.
(4)土壌処理
土壌処理の場合、花粉形成抑制剤は、液状製剤または固形製剤であることが好ましい。具体的な処理方法としては、例えば、噴霧機、散布機または潅注機などの機器を使用して、植物の根が分布している土壌に花粉形成抑制剤を散布または潅注する方法があげられる。噴霧機および散布機としては、(3)散布処理であげたものと同様の機器があげられる。花粉形成抑制剤はそのまま用いてもよいが、予め、液体担体を用いて希釈、溶解または分散させておき、得られた希釈液、溶解液または分散液を噴霧機、散布機または潅注機などの機器に入れて利用に供してもよい。
(4) Soil treatment In the case of soil treatment, the pollen formation inhibitor is preferably a liquid preparation or a solid preparation. Specific treatment methods include, for example, a method of spraying or irrigating a pollen formation inhibitor on soil where plant roots are distributed using an apparatus such as a sprayer, a spreader or an irrigator. Examples of the sprayer and the spreader include the same devices as those described in (3) Spreading process. Although the pollen formation inhibitor may be used as it is, it is diluted, dissolved or dispersed in advance using a liquid carrier, and the resulting diluted solution, dissolved solution or dispersion is used as a sprayer, spreader or irrigator. It may be put into equipment and used.
尚、本明細書において「散布」とは、花粉形成抑制剤の適用対象(植物、土壌等)に液状または固形の花粉形成抑制剤を撒き散らすことを意味する。また、「潅注」とは、適用対象に対して液状の花粉形成抑制剤を注ぎ込むことを意味する。 In the present specification, “spreading” means that a liquid or solid pollen formation inhibitor is dispersed in an application target (plant, soil, etc.) of the pollen formation inhibitor. In addition, “irrigation” means pouring a liquid pollen formation inhibitor into the application target.
土壌処理に要するアセト乳酸合成酵素阻害剤の量は、例えば、スギまたはヒノキの林1haあたり100〜5000gが好ましく、250〜2500gがより好ましい。 The amount of the acetolactate synthase inhibitor required for soil treatment is, for example, preferably 100 to 5000 g, more preferably 250 to 2500 g per cedar or cypress forest.
本発明の花粉形成抑制方法の適用時期は、処理方法や対象植物の種類、処理対象地域等に応じて適宜決定されるが、一般的には、6月までが好ましい。 The application time of the pollen formation suppressing method of the present invention is appropriately determined according to the treatment method, the type of target plant, the treatment target area, and the like, but generally it is preferably up to June.
以下、本発明を実施例により具体的に説明するが、本発明は以下の実施例に限定されるものではない。 EXAMPLES Hereinafter, although an Example demonstrates this invention concretely, this invention is not limited to a following example.
<製剤実施例1:イマザモックス液剤の調製>
有効成分としてイマザモックス アンモニウム塩(イマザモックス)と、界面活性剤としてポリオキシエチレンアルキルエーテルと、液体担体として水とを、表1に示す組成で配合し、イマザモックス液剤を調製した。
<Formulation Example 1: Preparation of imazamox solution>
Imazamox solution was prepared by blending imazamox ammonium salt (imazamox) as an active ingredient, polyoxyethylene alkyl ether as a surfactant, and water as a liquid carrier in the composition shown in Table 1.
<製剤実施例2:イマザピック液剤の調製>
有効成分としてイマザピック アンモニウム塩(イマザピック)と、界面活性剤としてポリオキシエチレンアルキルエーテルと、液体担体として水とを、表2に示す組成で配合し、イマザピック液剤を調製した。
<Formulation Example 2: Preparation of imazapic solution>
An imazapic solution was prepared by blending imazapic ammonium salt (imazapic) as an active ingredient, polyoxyethylene alkyl ether as a surfactant, and water as a liquid carrier in the composition shown in Table 2.
<製剤実施例3:イマザモックス液剤の調製>
有効成分としてイマザモックス アンモニウム塩(イマザモックス)と、界面活性剤としてポリオキシエチレンアルキルエーテルと、液体担体として水とを、表3に示す組成で配合し、イマザモックス液剤を調製した。
<Formulation Example 3: Preparation of imazamox solution>
Imazamox solution was prepared by blending imazamox ammonium salt (imazamox) as an active ingredient, polyoxyethylene alkyl ether as a surfactant and water as a liquid carrier in the composition shown in Table 3.
<実施例1:ポット試験>
ガラス温室内において、ポットに定植した樹高約0.6mのスギ苗木を供試用植物とし、地際から約50mmの高さの樹幹(樹幹直径約10mm)に錐で孔(直径約1mm、深さ約5mm)を2個あけた。製剤実施例1のイマザモックス液剤および製剤実施例2のイマザピック液剤を、有効成分の薬剤濃度が5ppm、15ppm、50ppm、150ppmまたは500ppmとなるように、それぞれ水で希釈して合計10種類の液剤を調製した。調製した液剤1種に対してスギ苗木を3本ずつ用意し、これらの液剤10μLをそれぞれ3本の苗木の孔に注入した。注入から約3か月後の7月、雄花形成を誘導するため100ppmジベレリン水溶液をスギ苗木の葉面全体に、表面が濡れる程度(約30mL/1本)散布した。ジベレリン散布から6か月後に、各スギ苗木について、雄花の着花程度および薬害程度を調査した。
<Example 1: Pot test>
In a glass greenhouse, a cedar seedling with a tree height of about 0.6 m planted in a pot is used as a test plant, and a hole (diameter: about 1 mm, depth) is drilled in a trunk (about 10 mm in diameter) about 50 mm from the ground. Two pieces of about 5 mm) were opened. The imazamox solution of Formulation Example 1 and the imazapic solution of Formulation Example 2 were each diluted with water so that the drug concentration of the active ingredient was 5 ppm, 15 ppm, 50 ppm, 150 ppm or 500 ppm to prepare a total of 10 types of solutions. did. Three cedar seedlings were prepared for each of the prepared solutions, and 10 μL of these solutions were each injected into the holes of three seedlings. In July, about 3 months after injection, a 100 ppm gibberellin aqueous solution was sprayed on the entire leaf surface of a cedar seedling to induce male flower formation (about 30 mL / line). Six months after the gibberellin application, the degree of flowering and phytotoxicity of male flowers was investigated for each cedar seedling.
雄花の着花程度は、各スギ苗木を肉眼で観察することにより行った。具体的には、苗木の各枝における雄花の有無を判定し、スギ苗木1本の全枝数に対する着花枝数の割合(%)を[着花指数]として算出した。苗木それぞれについて得られた着花指数(%)の平均値を表4に示す。 The degree of flowering of male flowers was determined by observing each cedar seedling with the naked eye. Specifically, the presence or absence of male flowers in each branch of the seedling was determined, and the ratio (%) of the number of flowering branches to the total number of branches of one cedar seedling was calculated as [Flowering index]. Table 4 shows the average value of the flowering index (%) obtained for each of the seedlings.
薬害程度は、各スギ苗木の枝葉を肉眼で観察することにより行った。具体的には、枝葉の変色や葉枯れの程度を、花粉形成抑制剤による処理をしていないスギ苗木と比較し、下記の0〜5の[薬害指数]として表した。苗木それぞれについて得られた薬害指数の平均値を表4に示す。
[薬害指数]
0:薬害なし
1:わずかに変色あり(5%未満枯れている)
2:一部に変色あり(5%以上20%未満枯れている)
3:変色・葉枯れが多い(20%以上50%未満枯れている)
4:変色・葉枯れが多いが枯死に至っていない(50%以上90%未満枯れている)
5:枯死(90%以上枯れている)
The degree of phytotoxicity was determined by observing the branches and leaves of each cedar seedling with the naked eye. Specifically, the degree of branch leaf discoloration and leaf withering was compared with the cedar seedlings that were not treated with the pollen formation inhibitor, and was expressed as the [phytotoxicity index] of 0 to 5 below. Table 4 shows the average value of the phytotoxicity index obtained for each seedling.
[Drug Hazard Index]
0: No chemical damage 1: Slightly discolored (withered less than 5%)
2: Partial discoloration (5% to 20% withering)
3: Many discoloration and leaf withering (20% or more and less than 50% withering)
4: Many discoloration and leaf wilt but not dead (50% or more and less than 90% withered)
5: Withering (90% or more withering)
表4に示す通り、イマザモックスまたはイマザピックを含有する本発明の花粉形成抑制剤は、スギの雄花の着花を抑制することにより、花粉の発生を抑制する効果を有することがわかった。また、本発明の花粉形成抑制剤は、スギに対して、薬害程度が少ないことがわかった。 As shown in Table 4, it was found that the pollen formation inhibitor of the present invention containing imazamox or imazapic has an effect of suppressing the generation of pollen by suppressing the flowering of male flowers of cedar. Moreover, it turned out that the pollen formation inhibitor of this invention has little phytotoxicity with respect to a cedar.
<実施例2:圃場試験>
茨城県下妻市の圃場において、樹高約2mの5年生スギを供試木とし、地際から0.3〜0.5mの高さの樹幹(樹幹直径約80mm)の2〜3か所に、錐で孔(直径約6mm、深さ約20mm)をあけた。製剤実施例1のイマザモックス液剤を、有効成分の薬剤濃度が5.7ppm、57ppm、570ppmとなるように、それぞれ水で希釈して3種類の液剤を調製した。また、製剤実施例2のイマザピック液剤を、有効成分の薬剤濃度が17.1ppm、57ppm、171ppmとなるように、それぞれ水で希釈して3種類の液剤を調製した。これらの液剤をそれぞれ5本の供試木に1mLずつ注入した。注入から1か月後の7月に、雄花形成を誘導するため100ppmジベレリン水溶液をスギ葉面全体に散布(100〜200mL/1本)した。ジベレリン散布後の6か月後に、実施例1と同様の方法により、雄花の着花指数および薬害指数を調査した結果を表5に示す。
<Example 2: Field test>
In a field in Shimotsuma City, Ibaraki Prefecture, a 5-year-old cedar tree with a height of about 2m was used as a test tree, and it was placed in two to three places on the trunk (trunk diameter of about 80mm) 0.3 to 0.5m from the ground. A hole (diameter: about 6 mm, depth: about 20 mm) was made with a cone. The imazamox solution of Formulation Example 1 was diluted with water so that the drug concentrations of the active ingredients were 5.7 ppm, 57 ppm, and 570 ppm, respectively, to prepare three types of solutions. In addition, the imazapic solution of Formulation Example 2 was diluted with water so that the active ingredient drug concentrations were 17.1 ppm, 57 ppm, and 171 ppm, respectively, to prepare three types of solutions. 1 mL of each of these solutions was injected into 5 test trees. In July, one month after the injection, a 100 ppm gibberellin aqueous solution was sprayed over the cedar leaf surface (100 to 200 mL / line) to induce male flower formation. Table 5 shows the results of investigating the flowering index and phytotoxicity index of male flowers by the same method as in Example 1 six months after the gibberellin application.
表5に示す通り、イマザモックスまたはイマザピックを含有する本発明の花粉形成抑制剤は、スギの雄花の着花を抑制することにより、花粉の発生を抑制する効果を有することがわかった。また、本発明の花粉形成抑制剤は、スギに対して、薬害程度が少ないことがわかった。 As shown in Table 5, it was found that the pollen formation inhibitor of the present invention containing imazamox or imazapic has an effect of suppressing the generation of pollen by suppressing the flowering of male flowers of cedar. Moreover, it turned out that the pollen formation inhibitor of this invention has little phytotoxicity with respect to a cedar.
<実施例3:圃場試験>
5月、三重県伊賀市のスギ林において、樹高20±5m(平均約20m)のスギを供試木とし、地際から0.3〜0.5mの高さの樹幹(樹幹直径平均約280mm(200〜500mm))に、錐で孔(直径約6mm、深さ約60mm)をあけた。製剤実施例3のイマザモックス液剤を、スギ1本当たり1.4mL、2.8mL、5.6mLずつ、それぞれ12本の供試木に注入した。翌年3月に、実施例1と同様の方法により、雄花の着花指数および薬害指数を調査した結果を表6に示す。
<Example 3: Field test>
In May, in a cedar forest in Iga City, Mie Prefecture, a cedar tree with a height of 20 ± 5 m (average of about 20 m) was used as a test tree, and a tree trunk with a height of 0.3 to 0.5 m from the ground (average trunk diameter of about 280 mm (200 to 500 mm)), a hole (diameter of about 6 mm, depth of about 60 mm) was drilled with a cone. Formula Imazamox solution of Example 3 was injected into 12 test trees of 1.4 mL, 2.8 mL, and 5.6 mL each per cedar. Table 6 shows the results of investigating the flowering index and phytotoxicity index of male flowers in March of the following year by the same method as in Example 1.
表6に示す通り、イマザモックスを含有する本発明の花粉形成抑制剤は、スギの雄花の着花を抑制することにより、花粉の発生を抑制する効果を有することがわかった。また、本発明の花粉形成抑制剤は、スギに対して、薬害程度が少ないことがわかった。 As shown in Table 6, it was found that the pollen formation inhibitor of the present invention containing imazamox has an effect of suppressing the generation of pollen by suppressing the flowering of male flowers of cedar. Moreover, it turned out that the pollen formation inhibitor of this invention has little phytotoxicity with respect to a cedar.
以上の結果から、アセト乳酸合成酵素阻害剤を含有する本発明の花粉形成抑制剤は、薬害を与えることなく、スギなどの植物の花粉形成を効率的に抑制できることがわかった。 From the above results, it was found that the pollen formation inhibitor of the present invention containing an acetolactate synthase inhibitor can efficiently suppress pollen formation of plants such as cedar without causing phytotoxicity.
本発明の花粉形成抑制剤を用いることによって、スギまたはヒノキなどの植物の花粉の形成を抑制し、飛散を防止することが可能となり、現在社会問題化している花粉症の予防に寄与することができる。 By using the pollen formation inhibitor of the present invention, it becomes possible to suppress the formation of pollen of plants such as cedar or cypress, to prevent scattering, and to contribute to the prevention of hay fever, which is now a social problem. it can.
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CN109601547A (en) * | 2018-11-30 | 2019-04-12 | 北京市园林科学研究院 | A kind of plant pollen removes medicament and plant pollen removes method |
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