Abstract
In field experiments with Japanese mint using different growth retardants, chlormequat chloride (2-chloroethyltrimethylammonium chloride) increased the oil content significantly and inhibited growth to some extent only, whilst ethephon (2-chloroethyl phosphonic acid) at 0.06% concentration significantly decreased growth but had no significant effect on oil content. Among the two oil components studied, menthone content only was significantly increased by 0.06% ethephon whereas the other growth retardants were ineffective. Correlation studies indicated a strong negative relationship of leaf/stem ratio with plant height and herb yield while a strong positive relationship was obtained between the latter two characters. The oil content of the plant was negatively correlated with herb yield and plant height but it was related positively with leaf/stem ratio.
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CIMAP Communication No. 688.
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Abad Farooqi, A.H., Sharma, S. Effect of growth retardants on growth and essential oil content in Japanese mint. Plant Growth Regul 7, 39–45 (1988). https://doi.org/10.1007/BF00121688
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DOI: https://doi.org/10.1007/BF00121688