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Twelve pre release sugarcane clones were tested against clone Co 6907 for their suitability to late planted conditions (June planting) at Regional Agricultural Research Station, Anakapalle during 2014-15 & 2015-16. Among the pre release clones tested sugarcane clones 2006A 223 (71.2t/ha) and 2009A 107 (71 t/ha) recorded higher cane yield over standard Co 6907 (59.4t/ha) followed by 2000A 213 (64.7t/ha), 2000A 241 (64.9t/ha), 2005A 128 (63.9 t/ha) 2000A 56 (62.9 t/ha) and 2001A 70 (63.4 t/ha). All these clones are significantly on par with standard Co 6907 with tolerance to red rot and smut diseases, whereas Co 6907 is susceptible to smut disease. These clones also recorded significantly low SLA over standard Co 6907 which indicates more photosynthetic assimilates per unit area. SPAD / SCMR values at 120 under stress conditions sugarcane clones 2000A 56, 2000A 241, 2000A 213 and 2001A 70 are significantly on par with standard Co 6907. The ancillary data denoting stress tolerance like sheath moisture per cent, root spread area, total bio mass production per stool under stress and physiological parameters like leaf proline content & SOD activity under stress conditions is also high in sugarcane clones 2000A 56, 2000A 241, 2009A 107 and 2001A 70 over standard Co 6907. Based on two years of finding sugarcane clones 2000A 56, 2000A 241, 2009A 107, 2006A 223, 2005A 128 and 2001A 70 were found to suitable for rainfed cane cultivation based on cane yield, ancillary data and physiological triats in relation to moisture stress tolerance.

Keywords: Rainfed sugarcane, SPAD / SCMR, Leaf proline, SOD (super oxide dismutase) activity, Cane yield, Per cent juice sucrose, Root spread area and Number of millable canes.