Effects of seed exudates of several plant species during germination stage

摘要

Chemical substances released from plant organs into the neighboring environment as biological information stimulate or suppress the development and/or growth of other plants; this chemical interaction is called allelopathy (Molisch 1937; Rice 1974). The study of allelopathy has a long history. According to Rice (1977), a report by Banzan Kumazawa, which documents that rain or dew washing the leaves of red pine (Pinus densiflora) was harmful to crops growing under the pine (Lee & Monsi 1963), is historically considered to be the first report on allelopathy. Since then, various allelopathic substances were isolated and identified from different adult plant organs and the volatiles, exudates and leaches released from them.