Abstract
Partial male-sterile (ms4/ms4) soybeans (Glycine max L. Merr.) and their fertile isoline (Ms4/Ms4) were grown in adjoining field plots. From 62 until 92 days after emergence, the nitrogenase activity, assayed by acetylene reduction, of the average male-sterile plant was approximately twice that of the average fertile plant. At approximately 100 days after emergence, the assayable nitrogenase activity of the fertile plants fell to zero, whereas the nitrogenase of the partial male-sterile plants continued to be active for two additional weeks. Thus, this male-sterile plant seems to fix dinitrogen both at a higher rate and over a longer duration than does its fertile isoline.
Full text
PDF
Selected References
These references are in PubMed. This may not be the complete list of references from this article.
- Abu-Shakra S. S., Phillips D. A., Huffaker R. C. Nitrogen fixation and delayed leaf senescence in soybeans. Science. 1978 Mar 3;199(4332):973–975. doi: 10.1126/science.199.4332.973. [DOI] [PubMed] [Google Scholar]
- Imsande J., Ralston E. J. Hydroponic growth and the nondestructive assay for dinitrogen fixation. Plant Physiol. 1981 Dec;68(6):1380–1384. doi: 10.1104/pp.68.6.1380. [DOI] [PMC free article] [PubMed] [Google Scholar]
- Wilson R. F., Burton J. W., Buck J. A., Brim C. A. Studies on Genetic Male-Sterile Soybeans: I. Distribution of Plant Carbohydrate and Nitrogen during Development. Plant Physiol. 1978 May;61(5):838–841. doi: 10.1104/pp.61.5.838. [DOI] [PMC free article] [PubMed] [Google Scholar]