Interrelationships for yield and component traits in rainfed upland rice

A field experiment, with one hundred twelve diverse genotypes of rice, was conducted during wet season, 2007 at GPB. Research Farm of NDAU&T, Kumarganj, Faizabad to estimate the interrelationships under severe drought condition. The observations were recorded on eleven characters of yield and its attributes. The grain yield plant⁻¹ reflected strong positive association with harvest index and spikelet fertility at phenotypic and genotypic levels. Path analysis indicated that harvest index and biological yield plant⁻¹ contributed directly to grain yield plantl, while spikelet fertility, spikelets panicle⁻¹, panicle bearing tillers plant^−l, panicle length and days to 50% flowering were found to be important indirect contributors to grain yield. Besides, certain traits were found to be inter-correlated with each other. On the basis of overall mean performance associated with yield and its attributes the genotypes viz., NDR 509, JR 72049-B-R-22-3-J-J-B. JR 71695-3R-60-3-J and JR 47547-3B-26-2B-l were found promising.