“…Origin and evolution of the indigenous landraces have been shaped by an interplay between genetic and socio-cultural history, and is often difficult to trace due to lack of sufficient information. Here, certain anecdotes on Joha and Chakhao are available from the ancient texts describing past agriculture, such as, the Sukhapa and Ahom dynasties (1228 A.D.) (Guha, 1967(Guha, , 1984Bhuyan, 1974) had introduced late maturing but high yielding sali rice varieties (Guha, 1982;Hamilton and Bhuyan, 1987). Joha is also classified traditionally under sali rice category (Das et al, 2010).…”