New Zealand Journal of Botany abstracts

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Sex ratio in Clematis gentianoides DC.

E. J. GODLEY

Botany Division, DSIR, Private Bag, Christchurch, New Zealand

Abstract From 20 wild plants of the dioecious Tasmanian endemic, Clematis gentianoides, 1 941 seeds gave 367 males and 292 females. The trend towards an excess of males was not heterogeneous in the 20 progenies, 2 of which were significantly different from equality. The proportions of male plants could not be definitely related to percentage germination or death of seedlings. Earlier and later germinating groups had a similar sex ratio. Male plants produced more flowers than females and tended to flower earlier in age and earlier in the season. The heterogametic sex is not known.

Received 29 July 1976
New Zealand Journal of Botany, 1976, Vol. 14: 299-306.

PDF file of entire paper: medium quality (1001K); (scanned from paper original: notes about this process)

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