Author

Hiroyoshi Omokawa

Observed names: H. OMOKAWA, H. Omokawa, HIROYOSHI OMOKAWA, Hiroyoshi OMOKAWA

Observed institutions: National Agriculture and Food Research Organization, Okayama University, Tohoku University, Utsunomiya University, Tohoku Agricultural Research Center, Directorate of Weed Research, Institute of Plant Science and Resources, Okayama University, Virginia Tech, Tokyo University of Agriculture and Technology

OpenAlex ID: A5111707344

GlutathioneS-Transferase Activity in Unsafened and Fenclorim-Safened Rice (Oryza sativa)

1996 · Jingrui Wu, Hiroyoshi Omokawa, et al. · Pesticide Biochemistry and Physiology · 47

Mechanism of Safening Action of Dymuron and Its Two Monomethyl Analogues against Bensulfuron-methyl Injury to Rice (Oryza sativa)

1996 · Hiroyoshi Omokawa, Jingrui Wu, et al. · Pesticide Biochemistry and Physiology · 35

Inhibition of Echinochloa crus‐galli var. frumentacea seedling root elongation by chiral 1, 3, 5‐triazines in the dark

1992 · Hiroyoshi Omokawa, Makoto Konnai · Pesticide Science · 17

Chiral response of Oryzeae and Paniceae plants in α‐methylbenzyl‐3‐p‐tolyl urea agar medium

2003 · Hiroyoshi Omokawa, Hiroshi Murata, et al. · Pest Management Science · 16

Enantioselective Response of Rice and Barnyard Millet on Root Growth Inhibition by Optically Active α-Methylbenzyl Phenylureas

2001 · Hiroyoshi Omokawa, Jae Hwan Ryoo · Pesticide Biochemistry and Physiology · 15

Enantioselective Herbicidal Activity of Chiral α-Methylbenzylphenylureas againstCyperaceaeandEchinochloaPaddy Weeds

1998 · Jae Hwan RYOO, Hitoshi KURAMOCHI, et al. · Bioscience Biotechnology and Biochemistry · 15

PS II inhibitory activity of 2,4-diamino-6-chloro-s-triazines with a chiral sec-butyl and/or .ALPHA.-methylbenzyl group.

1990 · Hiroyoshi Omokawa, Makoto Konnai · Agricultural and Biological Chemistry · 15

PDF

Interaction between optical isomerism and plant pharmacological action, change of modes of action and chirality of 1‐(α‐methylbenzyl)‐3‐p‐tolylurea

1993 · Hiroyoshi Omokawa, Yoshinori Kawata, et al. · Pesticide Science · 14

Reverse Chiral Discrimination Relationships Between the Inhibitory Activity of 1,3,5-Triazines on Photosystem II and Light-Independent Root Growth

1994 · H. Omokawa, M. Takahashi · Pesticide Biochemistry and Physiology · 12

Rhizome‐induction activity of chiral 2‐α‐methylbenzylamino‐4‐alkylamino‐6‐chloro‐1, 3, 5‐triazines in Cyperus serotinus Rottb.

1992 · Hiroyoshi Omokawa, Masaaki Takeuchi, et al. · Pesticide Science · 12

Amelioration of the Salt-stressed Root Growth of Rice and Normalization of the Na+Distribution between the Shoot and Root by (S)-α-Methylbenzyl-2-fluoro-4-methylphenylurea

2002 · Hiroyoshi OMOKAWA, Shin-ichi AONUMA · Bioscience Biotechnology and Biochemistry · 10

Enantioselective Relieving Activity of α-Methylbenzylphenylureas toward Bensulfuron-methyl Injury to Rice (Oryza sativa)

1999 · Hiroyoshi OMOKAWA, Jae Hwan RYOO, et al. · Bioscience Biotechnology and Biochemistry · 10

A Novel Synthesis of (±)-Munduserone via Acetylenic Intermediates

1973 · Hiroyoshi Omokawa, Kyohei Yamashita · Agricultural and Biological Chemistry · 10

Phytotoxic Properties of α-Substituted Benzylamino-s-triazines

1987 · Hiroyoshi Omokawa, Nobumasa Ichizen, et al. · Agricultural and Biological Chemistry · 9

PDF

Synthesis of N-methyl and N-11C-methyl spiperone by phase transfer catalysis in anhydrous solvent.

1985 · Hiroyoshi OMOKAWA, Akira TANAKA, et al. · RADIOISOTOPES · 9

PDF

Chemical studies on rotenoed. III. Synthesis of ( + )-deguelin.

1974 · Hiroyoshi OMOKAWA, Kyohei YAMASHITA · Agricultural and Biological Chemistry · 9

PDF

Chiral effects of (R)‐/(S)‐1‐(α‐methylbenzyl)‐3‐(p‐tolyl)urea on the free amino acid levels in the root tips of rice and wheat

2009 · KAZUHIRO IMAI, HISAHIRO KOJIMA, et al. · Weed Biology and Management · 8

Triticeae plants preferentially responded to S‐1‐α‐methylbenzyl‐3‐p‐tolylurea in root growth and tetrazolium reduction assays

2005 · CHIAKI TANAKA, MINORI ITAGAKI, et al. · Weed Biology and Management · 8

Diverse Response of Plants Towards Chiral Phytotoxic Chemicals

2002 · Hiroyoshi Omokawa · Springer eBooks · 7

Effect of Soil Type, Water Depth, Water Leakage and Temperature on Activity of Flowable and Granular Formulations of Herbicides.

1991 · Nobumasa Ichizen, Takashi Takeuchi, et al. · Journal of Weed Science and Technology · 7

PDF

Analysis of gene expression in rice root tips treated with R-1-α-methylbenzyl-3-p-tolylurea using PCR-based suppression subtractive hybridization

2008 · Hisahiro Kojima, Yoshinori Hitomi, et al. · Pesticide Biochemistry and Physiology · 6

Enantioselective Effects of Optically Active α-Methylbenzyl-s-triazine on the Root Growth of Rice andEchinochloaPlants and Their Herbicidal Activity

2002 · Hiroyoshi OMOKAWA, Akiko TABEI · Bioscience Biotechnology and Biochemistry · 5

Phytotoxic studies on azine compounds. Part IV. Substituent effect on photosynthesis of N2-.ALPHA.-substituted benzyl-N4-alkyl-2,4-diamino-6-chloro-s-triazines and their phytotoxic property.

1989 · Hiroyoshi Omokawa, Izumi Kobayashi, et al. · Agricultural and Biological Chemistry · 5

PDF

A Novel Synthesis of (±)-Mun-duserone via Acetylenic Intermediates

1973 · Hiroyoshi Omokawa, Kyohei Yamashita · Agricultural and Biological Chemistry · 5

PDF

PCR-based suppression subtractive hybridization analyses of enantioselective gene expression in root tips of wheat treated with optically active urea compounds

2010 · Hisahiro Kojima, Takako Numata, et al. · Pesticide Biochemistry and Physiology · 3

Works count: 61

Citation count: 333

H-index: 10

I10-index: 13