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Light Period, Temperature, and Kochia Flowering

Published online by Cambridge University Press:  12 June 2017

Allyn R. Bell ,
John D. Nalewaja  and
A. B. Schooler
Allyn R. Bell
Affiliation:
Dep. of Agron., North Dakota State Univ., Fargo, North Dakota 58102
John D. Nalewaja
Affiliation:
Dep. of Agron., North Dakota State Univ., Fargo, North Dakota 58102
A. B. Schooler
Affiliation:
Dep. of Agron., North Dakota State Univ., Fargo, North Dakota 58102
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Abstract

Floral induction in kochia (Kochia scoparia (L.) Schrad.) was influenced more by light period and temperature than by soil fertility or soil moisture. Floral induction occurred when the light period per 24-hr cycle was shorter than a critical length. However, the critical duration of light per 24-hr cycle at which floral induction occurred varied from about 13 to 15 hr among kochia selections. The time from emergence to flowering varied from 57 to 100 days. The kochia selection from New Mexico required a shorter light period and a longer time after emergence for floral induction than did selections from North Dakota, South Dakota, and Minnesota. Kochia selections from the latter three states varied greatly in flowering date.

Type
Research Article
Information
Weed Science , Volume 20 , Issue 5 , September 1972 , pp. 462 - 464
Copyright
Copyright © Weed Science Society of America 

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References

Literature Cited

1. Dickerson, C. T. Jr. and Sweet, R. D. 1971. Common ragweed ecotypes. Weed Sci. 19:64–66.CrossRefGoogle Scholar
2. Hammer, K. C. and Bonner, J. 1938. Photoperiodism in relation to hormones as factors in floral initiation. Bot. Gaz. 100:388–431.Google Scholar
3. Hoagland, D. R. and Arnon, D. I. 1938. The water culture method for growing plants without soil. Univ. of Calif. Exp. Sta. Cir. 347: 32 p.Google Scholar
4. Long, E. M. 1939. Photoperiodic induction as influenced by environment factors. Bot. Gaz. 101:168–188.CrossRefGoogle Scholar
5. Naylor, A. W. 1941. Effect of nutrition and age upon rates of development of terminal staminate inflorescences of Xanthium pennsylvanicum . Bot. Gaz. 103:342–353.CrossRefGoogle Scholar
6. Neidle, E. K. 1939. Nitrogen nutrition in relation to photoperiodism in Xanthium pennsylvanicum . Bot. Gaz. 100: 607–618.Google Scholar
7. Salisbury, F. B. 1963. Biological timing and hormone synthesis in flowering of Xanthium . Planta 59:518–534.CrossRefGoogle Scholar
8. Salisbury, F. B. and Ross, C. 1969. Plant physiology. Wadsworth Publishing Company, Inc., Belmont, California. 747 p.Google Scholar
9. Snedecor, G. W. 1950. Statistical methods. Iowa State College Press, Ames, Iowa. 534 p.Google Scholar
10. Snyder, W. E. 1940. Effect of light and temperature on floral initiation in cocklebur and Biloxi soybean. Bot. Gaz. 102:302–322.CrossRefGoogle Scholar