Correlation studies in magic indica plus population and Indian rice germplasm

Abstract

One hundred and two MAGIC indica plus lines, one hundred and four rice accessions, along with four standard checks of rice (Oryza sativa L.) were evaluated during Kharif 2017 to study the nature and extent of correlation among yield and yield attributing characters viz., days to 50 per cent flowering, plant height, number of productive tillers per plant, panicle length, number of filled grains per panicle, number of grains per panicle, spikelet fertility, thousand-grain weight, grain yield per plant. The results revealed that grain yield plant per plant to be positively and significantly associated with with number of filled grains per panicle (rp= 0.657**; rg= 0.665), spikelet fertility (rp= 0.301**; rg= 0.321), number of productive tillers per hill (rp= 0.153**; rg= 0.068), panicle length (rp= 0.133**, rg= 0.114) indicating importance of these traits as selection criteria in yield improvement programmes.