Crop Science Journal of Natural Resources and Life Sciences Education
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Published in Crop Sci 12:209-212 (1972)
© 1972 Crop Science Society of America
677 S. Segoe Rd., Madison, WI 53711 USA
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Environmental Effects on the Resistance of Rice Seedlings to Complete Submergence1

Manuel C. Palada and Benito S. Vergara2

The survival of rice seedlings (Oryza sativa L.) after complete Submergence in water decreased with increased duration of submergence; with increased depth, temperature, and turbidity of water; and with increased rates of N fertilization. Survival increased with high light intensity and plant carbohydrate content. Factors that influence the survival of submerged plants also determine the amounts of N and carbohydrate in the plant.

Key Words: Temperature • Light intensity • Turbidity • Nitrogen • Carbohydrate content


2 Assistant Professor, College of Agriculture, Central Philippine University, Iloilo City, Philippines and Plant Physiologist, The International Rice Research Institute, M.C.C. P.O. Box 1300, Makati, Rizal, Philippines.

Received for publication August 16, 1971.





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