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  • Author or Editor: D. Wolfson x
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Roselle (Hibiscus sabdariffa L.) is an annual herbaceous subshrub believed to be indigenous from India to Malaysia (2). It is a short-day plant (1), and when grown at the latitude of Israel (32°N), the earliest possible date of flower initiation is 5 Aug. Preliminary studies have indicated that vegetative and reproductive growth ceases in autumn (5), which may be due to exposure to low night temperatures. The objective of this study was to determine the sensitivity of roselle to chilling at different growth stages.

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