Agronomy Journal Journal of Natural Resources and Life Sciences Education
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Published online 1 December 1959
Published in Agron J 51:727-730 (1959)
© 1959 American Society of Agronomy
677 S. Segoe Rd., Madison, WI 53711 USA
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The Response of Alfalfa Varieties to Photoperiod, Color of Light and Temperature1

L. W. Nittler and G. H. Gibbs2

Synopsis: Seedlings of southern and northern types of alfalfa varied in their response to photoperiod, color of light, and temperature. The greatest difference in growth between these types occurred with short photoperiods, a combination of red and green light, and low temperatures.

1 Contribution from the Department of Seed Investigations, New York State Agricultural Experiment Station, Cornell University, Geneva, New York. Approved by the director for publication as Journal Paper No. 1156, April 23, 1959. This study was part of a Northeast Regional Project (NEM-22), a cooperative study involving agricultural experiment stations in the Northeast region and supported in part by regional funds.

2 Associate Professor and Seed Technologist, respectively.

Received for publication April 23, 1959.


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D. J. Brouwer, S. H. Duke, and T. C. Osborn
Mapping Genetic Factors Associated with Winter Hardiness, Fall Growth, and Freezing Injury in Autotetraploid Alfalfa
Crop Sci., September 1, 2000; 40(5): 1387 - 1396.
[Abstract] [Full Text]


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Copyright © 1959 by the American Society of Agronomy.