References
- Glass , A.D.M. and Perley , J.E. 1980 . Plant Physiol. , 65 : 160 – 164 .
- Hooymans , J.J.M. 1971 . Z. Pflanzenphysiol. , 65 : 309 – 314 .
- Kannan , S. 1971 . Planta , 96 : 262 – 270 .
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- Seeds of PVR‐1 and IET‐1444 were obtained from Saline and alkaline Experiment Sub‐Station, Peravurani, Tamil Nadu. The seeds of AU‐1 were kindly supplied by Dr. Chandrasekaran, Professor of Agricultural Chemistry, Amamalai University, Tamil Nadu.