Promising indigenous rice cultivars of Dhemaji district, Assam based on panicle traits

摘要

Identifying promising rice cultivars for yield and yield attributing traits by visual observation is not always effective. In this study various quantitative and qualitative panicle traits of sixty-five (65) indigenous rice cultivars were considered for selection of superior rice cultivars of Assam, by assigning ranks to each cultivar Rank correlation study was also attempted to determine the significance of correlations among different panicle traits to grain yield. Considering seven quantitative panicle traits viz. grain yield, length of the panicle, number of spikelets panicle~(-1)percentage offilled spikelets panicle~(-1), spikelet density, number of panicles plant~(-1) 1000 grain weight and one qualitative panicle trait viz. grain type simultaneously, only eight promising indigenous cultivars were selected out of sixty-five. Three high-yielding varieties were also taken for observation as check varieties.