@Article{taiwania1991363201, AUTHOR = {Chang-Hung Chou, F. J. Chang, H.I. Oka}, TITLE = {Allelopathic Potentials of Awild Rice, Oryza perennis}, JOURNAL = {Taiwania}, VOLUME = {36}, YEAR = {1991}, ISSUE = {3}, PAGES = {201-210}, URL = {https://taiwania.ntu.edu.tw/abstract/156}, ABSTRACT = {To learn about genotypic variations in allelopathic potential, 24 strains of a sild rice, Oryza perennis Moench, collected from tropical Asian and American countries, and two rice cultivars (O. sativa L.), were planted at Nankang, and water extracts from their leaves and stems taken at the booting stage were used for bioassay with Chinese cabbage and rice seeds. The extracts were also used for chromatographic analysis to determine the contents of nine phenolic acids. The strains tested markedly differed in root-growth suppression rates in bioassay and contents of phenolic acids, but the two kinds of measurements were largely uncorrelated. The root-growth suppression rate in Chinese cabbage was considered as representing the allelopathic potential better than that in rice. Stepwise regression analysis showed that a combination of several phenolic acids and their interactions could account for the root- growth suppression rate in Chinese cabbage. The result of bisassay clearly indicates the main direction of differentiation in O. perennis strains.}, DOI = {10.6165/tai.1991.36.201} }