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Vegetative Reproduction in Western Ironweed

Published online by Cambridge University Press:  12 June 2017

C. J. Scifres  and
M. K. McCarty
C. J. Scifres
Affiliation:
Crops Research Division, Agr. Res. Serv., U. S. Dep. of Agr., Lincoln, Nebraska
M. K. McCarty
Affiliation:
Crops Research Division, Agr. Res. Serv., U. S. Dep. of Agr., Lincoln, Nebraska Brush Research, Texas A & M University at the South Plains Research and Extension Center, Lubbock, Texas
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Abstract

The apex of western ironweed (Vernonia baldwini Torr.) vegetative bud shoots adheres to the tunica-corpus theory. Two layers of cells with the plane of wall formation anticlinal to the main axis (tunica) lie over a body of tissue with no pattern to wall formation (corpus). The bud shoot can be divided into the promeristem, the zone of elongation, and a zone of maturation on the basis of histology. It is suggested that the promeristem may be the seat for dormancy mechanisms in western ironweed and that future investigations be concentrated on this site. There was no evidence of a structural barrier to translocation separating the rhizome and bud shoot.

Type
Research Article
Information
Weed Science , Volume 17 , Issue 1 , January 1969 , pp. 104 - 108
Copyright
Copyright © 1969 Weed Science Society of America 

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References

Literature Cited

1. Alcorn, S. M. and Ark, P. A. 1953. Softening paraffin embedded plant tissues. Stain Technol. 28:55–56.Google Scholar
2. Crafts, A. S. 1943. Vascular differentiation in the shoot apices of ten coniferous species. Amer. J. Bot. 30:382–393.Google Scholar
3. Davis, F. S. and McCarty, M. K. 1966. Effect of several factors on the expression of dormancy in western ironweed. Weeds 14:62–67.Google Scholar
4. Davis, F. S. and McCarty, M. K. 1966. Respiration, R. Q., and activities of three enzymes during the transition from dormant to the active state in western ironweed. Weeds 14:69–73.CrossRefGoogle Scholar
5. Leonard, O. A. 1967. How plant physiology affects weed control under Mediterranean conditions. Agrichem. West. 1(9): 14–16.Google Scholar
6. Meyers, G. A., Beasely, C. A., and Derscheid, L. A. 1964. Anatomical studies of Euphorbia esula L. Weeds 12:291–295.Google Scholar
7. Popham, R. A. 1958. Cytogenesis and zonation in the shoot apex of Chrysanthemum morifolium . Amer. J. Bot. 45:198–206.CrossRefGoogle Scholar
8. Reeve, R. M. 1948. The “tunica—corpus” concept and development of shoot apices in certain dicotyledons. Amer. J. Bot. 35:67–75.Google Scholar
9. Van Fleet, D. S. 1959. Analysis of histochemical localization of peroxidase related to the differentiation of plant tissues. Can. J. Bot. 37:449–458.Google Scholar
10. Weaver, H. L. 1955. An improved gelatin adhesive for paraffin sections. Stain Technol. 30:63–64.Google Scholar