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KMID : 0368419870300010059
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Journal of Plant Biology
1987 Volume.30 No. 1 p.59 ~ p.67
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A Bioassay on Susceptivity of Selected Species to Phytotoxic Substances from Tomato Plants
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Abstract
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To verify allelopathic effect of tomato plants a number of labovatory experiments, seed germination and seedling growth with aqueous extracts and leachates from the tomato plants, have performed. Germination percentage of the tested species was decreased by treatment with leaf, stem and root extracts as extracting time elapses. The leaf extract more inhibits the germination of the seeds than both stem and root extracts. Leachatc collected from the tomato plants decreases as much as 50% of the growths in elongation as well as in dry weight of seedlings of lettuce and egg plant. It is observed that with a paired-plants grown in U tube pot the tomato roots have excreted allelochemicals to inhibit the growth of the tested species and volatile substances from the tomato plants have suppressed to dry weights of lettuce, to elongation and dry weights of grapevine planted near the tomato plants.
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