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Floral Induction of Downy Brome (Bromus tectorum) as Influenced by Temperature and Photoperiod

Published online by Cambridge University Press:  12 June 2017

Jesse M. Richardson ,
Larry A. Morrow  and
David R. Gealy
Jesse M. Richardson
Affiliation:
Dep. Agron. and Soils, Washington State Univ., Pullman, WA 99164
Larry A. Morrow
Affiliation:
Nu Chem Ltd., P.O. Box 391, Colfax, WA 99111
David R. Gealy
Affiliation:
Nu Chem Ltd., P.O. Box 391, Colfax, WA 99111
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Abstract

Seedling vernalization was more effective than seed vernalization in promoting flowering of downy brome (Bromus tectorum L. # BROTE). Vernalizing imbibed downy brome caryopses at 3 C for 0 to 30 days did not induce rapid flowering when the caryopses were planted. Downy brome seedlings were exposed for 30 days to six photoperiod/temperature treatments. After subsequent transfer to long days, plants from the short-day/3 C treatment flowered within 30 days. Flowering was delayed or was absent in treatments with higher temperatures or long days. The shoot apex increased in volume during the short-day/3 C vernalization period. Two days following vernalization, floral initiation had occurred. By day 5, lateral organs had proliferated. Rudimentary glumes and lemmas were visible by day 8.

Keywords

Vernalizationfloweringfloral initiationinflorescencephotomicroscopyBROTE
Type
Weed Biology and Ecology
Information
Weed Science , Volume 34 , Issue 5 , September 1986 , pp. 698 - 703
Copyright
Copyright © 1986 by the Weed Science Society of America 

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References

Literature Cited

1. Baskin, J. M. and Baskin, C. C. 1981. Ecology of germination and flowering in the weedy winter annual grass Bromus japonicus . J. Range Manage. 34:369–372.Google Scholar
2. Baskin, J. M. and Baskin, C. C. 1974. Influence of low temperatures on flowering of winter annuals. Castanea 39:340–345.Google Scholar
3. Bernier, G., Kinet, J. M., and Sachs, R. M. 1980. The Physiology of Flowering. Vol. 1. Initiation of Flowers. CRC Press, Boca Raton, FL. 176 pp.Google Scholar
4. Canode, C. L., Maun, M. A., and Teare, I. D. 1972. Initiation of inflorescences in cool-season perennial grasses. Crop Sci. 12:19–22.Google Scholar
5. Donald, W. W. 1984. Vernalization requirements for flowering of jointed goatgrass (Aegilops cylindrica). Weed Sci. 32:631–637.CrossRefGoogle Scholar
6. Evans, M. and Wilsie, C. P. 1946. Flowering of bromegrass, Bromus inermis, in the greenhouse as influenced by length of day, temperature, and level of fertility. J. Am. Soc. Agron. 38: 923–932.Google Scholar
7. Evans, M. W. and Grover, F. O. 1940. Developmental morphology of the growing point of the shoot and the inflorescence in grasses. J. Agric. Res. 61:481–520.Google Scholar
8. Finnerty, D. W. and Klingman, D. L. 1962. Life cycles and control studies of some weed bromegrasses. Weeds 10:40–47.Google Scholar
9. Flood, R. G. and Halloran, G. M. 1982. Flowering behavior of four annual grass species in relation to temperature and photoperiod. Ann. Bot. 49:469–475.Google Scholar
10. Gardner, F. P. and Loomis, W. E., 1953. Floral induction and development in orchardgrass. Plant Physiol. 28:201–217.CrossRefGoogle Scholar
11. Hoagland, D. R. and Arnon, D. I. 1950. The water-culture method for growing plants without soil. Calif. Agric. Exp. Stn. Circ. 347. 32 pp.Google Scholar
12. Hoogendoorn, J. 1984. A comparison of different vernalization techniques in wheat (Triticum aestivum L.). J. Plant Physiol. 116:11–20.Google Scholar
13. Hulbert, L. C. 1955. Ecological studies of Bromus tectorum and other annual bromegrasses. Ecol. Monogr. 25:181–213.Google Scholar
14. Kirshin, I. K., Stefanovich, G. S., and Shcherbina, Zh. N. 1977. Floral induction of awnless bromegrass in regimes of decreasing and increasing photoperiod. Sov. J. Ecol. 8:101–105.Google Scholar
15. Klemmedson, J. O. and Smith, J. G. 1964. Cheatgrass (Bromus tectorum L.) Bot. Rev. 30:226–262.CrossRefGoogle Scholar
16. Mack, R. N. 1981. Invasion of Bromus tectorum L. into western North America: an ecological chronicle. Agro-ecosystems 7:145–165.Google Scholar
17. Mathon, C. C. 1970. Nouveaux cas de reactions ambiphotoperiodiques. C. R. Soc. Biol. 164:169–172.Google Scholar
18. Morrow, L. A. and Stahlman, P. W. 1984. The history and distribution of downy brome (Bromus tectorum) in North America. Weed Sci. 32, Suppl. 1:2–6.CrossRefGoogle Scholar
19. Newell, L. C. 1951. Controlled life cycles of bromegrass, Bromus inermis Leyss, used in improvement. J. Am. Soc. Agron. 43:417–424.Google Scholar
20. Peterson, M. L. and Loomis, W. E. 1949. Effects of photoperiod and temperature on growth and flowering of Kentucky bluegrass. Plant Physiol. 24:31–43.Google Scholar
21. Rydrych, D. J. and Muzik, T. J. 1968. Downy brome competition and control in dryland wheat. Agron. J. 60:279–280.Google Scholar
22. U.S. Dep. Agric., Agric. Res. Serv. 1970. Pages 46–47 in Selected Weeds of the United States. Agric. Handb. 366.Google Scholar