Effects of Temperature and Length of Day on the Sex Expression of Monoecious and Dioecious Angiosperms


IT has been demonstrated1 that production of female flowers in Cucurbita pepo is delayed when plants are grown in high temperatures and during long photoperiods. Previous investigations indicated a similar effect of temperature and length of day on the sex of Ambrosia 2.

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  1. 1

    Nitsch, J. P., Kurtz, E. B., Liverman, J. L., and Went, F. W., Amer. J. Bot., 39, 32 (1952).

  2. 2

    Jones, K. L., Amer. J. Bot., 34, 371 (1947).

  3. 3

    Borthwick, H. A., and Scully, N. J., Bot. Gaz., 116, 14 (1954).

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