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- Title
Comparative allelopathic potentials of American chestnut (Castanea dentata) and Chinese chestnut (C. mollissima).
- Authors
ZHANG, J. Y.; LIN, L. J.; YANG, L.; RUAN, X.; LI, X. J.; PAN, C. D.; ZHANG, H.; WANG, G.; WANG, Q.
- Abstract
We investigated the allelopathic potential of American and Chinese chestnut leaves on germination and seedling growth (radicle, plumule, length, dry weight) of dicotyledons (lettuce, radish and cucumber) and monocotyledons (onion, rice and wheat). The allelopathic intensity of water extracts of two chestnuts along with 11 eluting fractions (separated by X-5 macroporous resins) was compared. The most allelopathic fraction of the two water extracts was analyzed by standard substance counter evidence experiment. The water extract of Chinese chestnut leaf was more allelopathic than American chestnut leaf extracts, to inhibit the seed germination and seedling growth of cucumber, lettuce, onion, radish, rice and wheat. In bioassays, the 7:3, 6:4 and 5:5 elution fractions of both American chestnut and Chinese chestnut extracts contained allelochemicals, and the strongest allelopathic fraction (5:5) contained chlorogenic acid, p-hydroxybenzoic acid, protocatechuic acid, gallic acid, etc. The differences in chemical ecology characteristics between American chestnut and Chinese chestnut should not be ignored by restoration ecologists.
- Subjects
ALLELOPATHY; AMERICAN chestnut; GERMINATION; CHEMICAL ecology; ECOLOGISTS
- Publication
Allelopathy Journal, 2015, Vol 36, Issue 2, p303
- ISSN
0971-4693
- Publication type
Article