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Science 3 March 1978:
Vol. 199. no. 4332, pp. 973 - 975
DOI: 10.1126/science.199.4332.973
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Articles

Nitrogen Fixation and Delayed Leaf Senescence in Soybeans

SALAH S. ABU-SHAKRA 1, DONALD A. PHILLIPS 1, and RAY C. HUFFAKER 1

1 Department of Agronomy and Range Science, University of California, Davis 95616

Delayed leaf senescence has been found in a soybean population which maintains its chlorophyll and ribulosebisphosphate carboxylase activity in leaves and nitrogen fixation (acetylene reduction) activity in root nodules throughout seed maturation. Incorporation of delayed leaf senescence into an agronomically desirable genetic background may help to increase seed yield and symbiotic nitrogen fixation during seed development.

Submitted on October 31, 1977
Revised on December 30, 1977


THIS ARTICLE HAS BEEN CITED BY OTHER ARTICLES:
Does Maintaining Green Leaf Area in Sorghum Improve Yield under Drought? I. Leaf Growth and Senescence.
A. K. Borrell, G. L. Hammer, and A. C.L. Douglas (2000)
Crop Sci. 40, 1026-1037
   Abstract »    Full Text »
Prevention of Monocarpic Senescence in Soybeans with Auxin and Cytokinin: An Antidote for Self-Destruction.
L. D. NOODEN, G. M. KAHANAK, and Y. OKATAN (1979)
Science 206, 841-843
   Abstract »    PDF »


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Science. ISSN 0036-8075 (print), 1095-9203 (online)