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Outcrossing in Velvetleaf (Abutilon theophrasti)

  • Robert N. Andersen (a1)

Abstract

Using an accession of velvetleaf having a high degree of purple pigmentation as the male parent made possible the identification of seedlings resulting from controlled or natural crosses. Cross-pollination, even after flowers had opened and anthers had shed pollen, was demonstrated by transmitting pollen manually. Natural outcrossing was demonstrated in the field by growing plants of the purplepigmented accession in close proximity to locally occurring velvetleaf. Insect transmission of pollen was suspected.

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1. Andersen, R. N. and Gronwald, J. W. 1987. Noncytoplasmic inheritance of atrazine tolerance in velvetleaf (Abutilon theophrasti). Weed Sci. 35:496498.
2. Andersen, R. N., Menges, R. M., and Conn, J. S. 1985. Variability in velvetleaf (Abutilon theophrasti) and reproduction beyond its current range in North America. Weed Sci. 35:507512.
3. Hu, S. Y. 1955. Flora of China, family 153, Malvaceae. Pages 3132. Arnold Arboretum, Harvard Univ., Cambridge, MA.
4. Parrish, J.A.D. and Bazzaz, F. A. 1979. Difference in pollination niche relationships in early and late successional plant communities. Ecology 60:597610.
5. Ritter, R. L. 1986. Triazine resistant velvetleaf and giant foxtail control in no-tillage corn. Proc. Northeast. Weed Sci. Soc. 40:5052.
6. Souza Machado, V. 1982. Inheritance and breeding potential of triazine tolerance and resistance in plants. Pages 257273 in LeBaron, H. M. and Gressel, J., eds. Herbicide Resistance in Plants. John Wiley and Sons, New York.
7. Steinbauer, G. P. and Grigsby, B. 1959. Methods of obtaining field and laboratory germination of seeds of bindweeds, lady's thumb and velvet leaf. Weeds 7:4146.

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Outcrossing in Velvetleaf (Abutilon theophrasti)

  • Robert N. Andersen (a1)

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