| 摘要 |
PROBLEM TO BE SOLVED: To obtain a crop germination inhibitor which is safe and inexpensive, has an excellent crop germination-inhibiting effect, can simply be produced, and can stably be supplied. SOLUTION: The crop germination inhibitor comprises or contains terpene compounds of formulas 1 to 3 obtained from the water or organic solvent extracts of rice chaff and wheat or barley seed chaff (hull).
|
