Abstract

                                The suitability of the various earliness indices now in vogue was studied under rice fallows condition at the Agricultural Research Station. Aduthurai in 1959. The carliness indices gathered on the basis of flowering, i. e. bud initiation period, square period, date of first flowering and node number did not markedly bring out the earliness of the type satisfying the conditions under rico fallows. But the earlinesa indices such as Bartletts' index and time of maturity, which are based on the productivity of kapas, appear to be more useful and practical for the рuгроse.

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