JP2892405B2 - Rice lodging control agent - Google Patents
Rice lodging control agentInfo
- Publication number
- JP2892405B2 JP2892405B2 JP33214589A JP33214589A JP2892405B2 JP 2892405 B2 JP2892405 B2 JP 2892405B2 JP 33214589 A JP33214589 A JP 33214589A JP 33214589 A JP33214589 A JP 33214589A JP 2892405 B2 JP2892405 B2 JP 2892405B2
- Authority
- JP
- Japan
- Prior art keywords
- rice
- lodging
- control agent
- rice lodging
- lodging control
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
Links
Landscapes
- Agricultural Chemicals And Associated Chemicals (AREA)
Description
【発明の詳細な説明】 ＜産業上の利用分野＞ 本発明は３−ヒドロキシ−５−メチルイソキサゾール
またはその塩を有効成分とするイネの倒伏軽減剤に関す
るものである。DETAILED DESCRIPTION OF THE INVENTION <Industrial Application Field> The present invention relates to a rice lodging control agent containing 3-hydroxy-5-methylisoxazole or a salt thereof as an active ingredient.
＜従来の技術＞ 現在わが国の稲作は食味の良い米の生産が中心であ
り、例えばコシヒカリやササニシキといった品種の栽培
が多くなっている。しかしながら、これらの品種はいわ
ゆる長稈種であり、出穂以降の登熟期に倒伏しやすい。
倒伏は減収や品質の低下をもたらし、また、収穫作業の
能率の低下をもたらすため問題となっている。<Prior Art> At present, rice cultivation in Japan mainly produces good-tasting rice, and cultivation of varieties such as Koshihikari and Sasanishiki is increasing. However, these varieties are so-called long culm species, and tend to lodge during the ripening period after heading.
Lodging is a problem because it causes a decrease in yield and quality, and also reduces the efficiency of harvesting operations.
近年、イネの倒伏軽減剤としてイナベンフィド剤（商
品名：セリタード粒剤）が実用化されている。本剤は、
イネの節間伸長を抑えることにより短稈化して倒伏を軽
減化しているが、籾数／穂を減少させるなど、収量構成
要素に影響を与えている。In recent years, an inabenfide agent (trade name: Ceritad granule) has been put to practical use as a lodging-reducing agent for rice. This drug is
By suppressing internode elongation of rice, the culm is shortened and lodging is reduced, but the yield component is affected by reducing the number of paddy / ears.
本発明の有効成分であり３−ヒドロキシ−５−メチル
イソキサゾール（商品名：タチガレン）は殺菌剤として
公知の化合物であり、また、イネの移植時の発根・活着
促進効果やイネの登熟促進効果があることが知られてい
るが、イネの倒伏軽減効果を有することは従来知られて
いなかった。The active ingredient of the present invention, 3-hydroxy-5-methylisoxazole (trade name: tatigalen), is a compound known as a bactericide. Although it is known that it has an effect of promoting ripening, it has not been known that it has an effect of reducing lodging of rice.
＜課題を解決するための手段＞ 本発明者等は、３−ヒドロキシ−５−メチルイソキサ
ゾールまたはその塩を出穂期前後のイネに散布すると、
下位葉鞘を遅くまで健全に保ち、これが稈を保護するこ
とにより倒伏を軽減することを見い出して本発明を完成
した。<Means for Solving the Problems> The present inventors sprayed 3-hydroxy-5-methylisoxazole or a salt thereof on rice before and after the heading stage,
The present invention was completed by finding that the lower leaf sheath was kept healthy until late, and that this reduced the lodging by protecting the culm.
この葉鞘の枯れ上がりを防ぐことによる倒伏軽減効果
は、イネ体が本来持っている生理活性の増強による作用
であるため、従来の技術にあるような収量構成要素への
影響がなく、望ましい性質である。The effect of preventing lodging of the leaf sheath by preventing it from withering is an effect due to the enhancement of the physiological activity inherent in the rice body, so that it does not affect the yield component as in the conventional technology and has desirable properties. is there.
３−ヒドロキシ−５−メチルイソキサゾールの塩とし
ては、ナトリウム、カリウム、カルシウム、マグネシウ
ム、アンモニウムのような塩があげられる。これらの塩
における金属原子等は、３−位置のヒドロキシル基の水
素原子と置換している。Salts of 3-hydroxy-5-methylisoxazole include salts such as sodium, potassium, calcium, magnesium, ammonium. The metal atom and the like in these salts are substituted with the hydrogen atom of the hydroxyl group at the 3-position.
本発明のイネの倒伏軽減剤は、通常の農薬の製剤形態
である粉剤、水和剤、液剤等に製剤される。The rice lodging alleviating agent of the present invention is formulated into powders, wettable powders, liquids and the like which are in the form of ordinary agricultural chemicals.
製剤の性状を改善し、あるいは生物効果を高める目的
で、種々の界面活性剤、高分子化合物等が適宜使用され
る。また、他の植物生長調節剤、除草剤、殺菌剤、殺虫
剤、肥料等を併用することもできる。For the purpose of improving the properties of the preparation or enhancing the biological effect, various surfactants, polymer compounds and the like are appropriately used. Further, other plant growth regulators, herbicides, fungicides, insecticides, fertilizers, and the like can be used in combination.
薬剤の処理方法としては、対象とするイネに茎葉散布
するか、または土壤処理により使用されるが、前者がよ
り好ましい。As a method of treating the chemical, the foliage is sprayed on the target rice or used by soil treatment, and the former is more preferable.
次に本発明の製剤例をあげる。 Next, preparation examples of the present invention will be described.
製剤例１ 粉剤 タチガレン（３−ヒドロキシ−５−メチルイソキ
サゾール）原体（91.7％）4.54重量部と、ジエチレング
リコール0.20重量部とクレー95.26重量部を均一に混合
し、粉砕してタチガレン４％粉剤を得る。Formulation Example 1 Powder Tatigalen (3-hydroxy-5-methylisoxazole) 4.54 parts by weight (91.7%), diethylene glycol 0.20 parts by weight, and clay 95.26 parts by weight are uniformly mixed and pulverized to give 4% tatigalen powder. Get.
製剤例２ 液剤 タチガレン原体（91.7％）33.15重量部と水酸化
カリウム（48.6％水溶液）33.02重量部および水31.83重
量部を均一に混合溶解してタチガレン30％液剤を得る。Formulation Example 2 Liquid Formulation 33.15 parts by weight of Tatigalen (91.7%), 33.02 parts by weight of potassium hydroxide (48.6% aqueous solution) and 31.83 parts by weight of water are uniformly mixed and dissolved to obtain a 30% by weight Tatigalen solution.
次に、このようにして調製された本発明組成物の試験
例をあげる。Next, test examples of the composition of the present invention thus prepared will be described.
試験例１ 以下の方法により圃場試験を行ない、倒伏程度の観察
を行なった。Test Example 1 A field test was performed by the following method, and the degree of lodging was observed.
品種：コシヒカリ 移植:5月２日 稚苗機械移植 施肥：慣行法 出穂:8月３日 収穫:9月５日 薬剤処理:7月10日 タチガレン（３−ヒドロキシ−５−メチルイソキサゾ
ール）粉剤を動力散粉機（パイプダスター）を用いて4k
g/10aの割合で茎葉に散布した。Variety: Koshihikari Transplant: May 2 Seedling machine transplant Fertilization: Conventional method Heading: August 3 Harvest: September 5 Chemical treatment: July 10 Tachigaren (3-hydroxy-5-methylisoxazole) powder 4k using a power duster (pipe duster)
It was sprayed on foliage at a rate of g / 10a.
倒伏程度の推移は次表のとおりである。 The following table shows the changes in the degree of lodging.
なお倒伏程度は下記図面に示す角度で表示した。 The degree of lodging was indicated by the angles shown in the following drawings.
試験例２ 以下の方法により圃場試験を行ない倒伏程度の観察を
行なった。Test Example 2 A field test was performed by the following method to observe the degree of lodging.
品種：コシヒカリ 移植:5月15日 稚苗機械移植 施肥：慣行法 出穂:8月４日 薬剤処理：処理Ｉ ７月26日と７月30日の２回 タチガレン液剤（カリウム塩）を遊離体として500ppm
に希釈した液を120/10aの割合で茎葉に散布 処理II ８月２日と８月９日の２回 タチガレン液剤（カリウム塩）を遊離体として500ppm
に希釈した液を120/10aの割合で茎葉に散布 倒伏程度の推移は次表のとおりである。Variety: Koshihikari Transplant: May 15 Seedling machine transplant Fertilization: Conventional method Heading: August 4 Chemical treatment: Treatment I Twice on July 26 and July 30 Tatigalen liquid (potassium salt) as a free form 500ppm
Spray the solution diluted to 120 / 10a on the foliage at a rate of 120 / 10a Treatment II twice on August 2 and August 9 500 ppm of the free form of Tatigalen solution (potassium salt)
Spraying the diluted solution at a rate of 120 / 10a on foliage The transition of lodging is shown in the following table.
【図面の簡単な説明】 第１図はイネの倒伏程度を示す。BRIEF DESCRIPTION OF THE DRAWINGS FIG. 1 shows the degree of lodging of rice.
───────────────────────────────────────────────────── フロントページの続き (72)発明者 高日 幸義 滋賀県野洲郡野洲町野洲1041 三共株式 会社内 (56)参考文献 特公 昭49−25470（ＪＰ，Ｂ１) (58)調査した分野(Int.Cl.6，ＤＢ名) A01N 43/80 ──────────────────────────────────────────────────続 き Continued on the front page (72) Inventor Yukiyoshi Takanichi 1041 Yasu, Yasu-cho, Yasu-gun, Shiga Prefecture Inside Sankyo Co., Ltd. Int.Cl. 6 , DB name) A01N 43/80
Claims (1)
ルまたはその塩を有効成分とするイネの倒伏軽減剤。(1) A rice lodging control agent comprising 3-hydroxy-5-methylisoxazole or a salt thereof as an active ingredient.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP33214589A JP2892405B2 (en) | 1989-12-21 | 1989-12-21 | Rice lodging control agent |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP33214589A JP2892405B2 (en) | 1989-12-21 | 1989-12-21 | Rice lodging control agent |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH03190804A JPH03190804A (en) | 1991-08-20 |
| JP2892405B2 true JP2892405B2 (en) | 1999-05-17 |
Family
ID=18251648
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP33214589A Expired - Fee Related JP2892405B2 (en) | 1989-12-21 | 1989-12-21 | Rice lodging control agent |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP2892405B2 (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113317149B (en) * | 2021-06-29 | 2022-11-29 | 湖南杂交水稻研究中心 | Cultivation method for realizing ultra-high yield of double cropping rice |
-
1989
- 1989-12-21 JP JP33214589A patent/JP2892405B2/en not_active Expired - Fee Related
Also Published As
| Publication number | Publication date |
|---|---|
| JPH03190804A (en) | 1991-08-20 |
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