Water suspensions from seeds, root and shoots of peach (Prunus persica (L.) Batsch) influenced growth of peach, apple and bean seedlings when applied to soil of potted plants. Different levels of amygdalin were found in plant parts of peach and apple. Synthetic amygdalin applied to potted peach seedlings was not toxic. Certain nutrient elements were altered due to the soil treatment. Disposal of plant parts is suggested as a practical sanitation practice to possibly reduce peach tree decline on old soil.
Received for publication February 7, 1975. Michigan Agr. Expt. Station Journal Article No. 7114.
Present address: Horticulture Expt. Station, Suwon, Korea.
Professor of Horticulture.