Abstract

An attempt to evolve a high yielding salt tolerant rice suitable for saline and alkaline area of Tamil Nadu has resulted in the isolation of a promising cnlture. This culture, TNAU 17005 was obtained by crossing IR 20 with Dasal, a variety from West Bangal. This culture yielded 6.3 t/ha under normal condition, the yield increase over IR 20 being 21.5%. Under saline/alkaline condition it has an yield potential of 4:1 t/ha which is 56.6% higher than IR 20. It is a semi-dwarf type maturing in 135 to 140 days. Rice colour is white with fine quality suitable for raw and boiled rice. Hence, this culture was released as a high yielding variety Co 43 for saline/alkaline as well as other areas of Tamil Nadu where IR 20 is grown at present.

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