PERFORMANCE OF IRRI RICE CULTURES UNDER COASTAL SALINE SOILS OF ANDHRA PRADESH
Publication Date : 28/02/2015
The trial conducted at Machilipatnam representing coastal saline eco system with pH - 7.35, EC (dS m-1) - 14.21 and ESP % - 17.57 with 30 rice cultures exclusively bred for salinity at IRRI, Philippines indicated the significant influence of soil salinity, however, only one test culture Pokkali registered significantly higher yield followed by FL 449(IR 66946-3R-149-1-1) with 4.21 t/ha, while the cultures IR 11 T 242 (3.56 t/ha) and IR 11 T 265 (3.28 t/ha) recorded yield at par with the check MTU 1001. The yield superiority of the culture Pokkali is due to the significance of spikelet fertility percent, effective tillers-1, panicle length, and test weight while, FL 449 expressed the yield advantage by way of spikelet fertility percent and panicle length concluding that the test cultures Pokkali and FL 449 can tolerate moderate to high soil salinity(14.21 dSm) and give reasonably good yield.
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