Agronomy Journal Journal of Natural Resources and Life Sciences Education
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Published online 1 September 1966
Published in Agron J 58:489-493 (1966)
© 1966 American Society of Agronomy
677 S. Segoe Rd., Madison, WI 53711 USA
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Salt Tolerance of N. Co. Varieties of Sugar Cane. I. Sprouting, Growth, and Yield1

Leon Bernstein, L. E. Francois and R. A. Clark2

The salt tolerance of N. Co. 293 and N. Co. 310 was determined in large greenhouse soil cultures with four levels of added NaCl and CaCl2 and in artificially salinized field plots. In the latter, sulfate salinity and high proportions of magnesium salts were also studied. ‘N. Co. 293’ was more salt-tolerant than ‘N. Co. 310’ at moderate and high salinities, but both varieties had similar salt tolerance in the greenhouse at a low salinity. Yields decreased by 10% at 3 mmho/cm (ECe) and by 25% at about 5 mmho/cm. The ratoon crop in the field plots was only half as salt tolerant as the seed crop, and differences in salt tolerance between the varieties diminished during the second year. The greater sensitivity of the second year's growth is tentatively attributed to the combined effect of low winter temperature and salinity.

1 Contribution from the U. S. Salinity Laboratory, Soil and Water Conservation Research Division, Agricultural Research Service, U. S. Department of Agriculture, Riverside, California, in cooperation with the 17 Western States and Hawaii.

2 Plant Physiologist, Agronomist, and Chemist, respectively.

Received for publication March 26, 1966.




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The SCI Journals Crop Science Vadose Zone Journal
Journal of Natural Resources
and Life Sciences Education		 Soil Science Society of America Journal
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Environmental Quality		 The Plant Genome
Copyright © 1966 by the American Society of Agronomy.