Cyperus esculentus
tubers and early growth of their sprouts. Percent sprouting increased with increasing temperature within the range of 12 to 38 C, while no sprouting occurred at 10 C and few tubers sprouted at 42 C. The rate of sprouting also increased with temperature up to 35 C. A base temperature of 11.4 C was determined for bud-sprouting of tubers in this species. Higher temperatures led to larger sprouts and greater survival rate. In particular, increased temperature favored root growth, and hence resulted in high root: shoot ratio of the sprouts. Larger tubers produced larger sprouts as a consequence of mobilizing a greater amount of their reserves, but they tended to utilize a smaller proportion of their reserves. The efficiency of reserve utilization significantly differed among the incubation temperatures, and its relation with temperature followed a quadratic pattern. This pattern is different from that documented for the bud-sprouting of rhizomes and stolons of other perennials. Our results demonstrate that temperature is crucial to the successful establishment of C. esculentus.
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Received 24 June 1999/ Accepted in revised form 14 December 1999
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Li, B., Shibuya, T., Yogo, Y. et al. Effects of Temperature on Bud-Sprouting and Early Growth of Cyperus esculentus in the Dark. J Plant Res 113, 19–27 (2000). https://doi.org/10.1007/PL00013912
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DOI: https://doi.org/10.1007/PL00013912