PHENOTYPIC CHARACTERIZATION OF AROMATIC RICE (ORYZASATIVA L.) LANDRACES OF ODISHA, INDIAChinmayee Sahoo, Hatanath Subudhi and Bhabatarini Panda
A total of 127 accessions of aromatic short grain rice were collected with detailed passport informationfrom 30 districts of Odisha, India. The agro-morphological characters of all the landraces wererecordedaccording to Distinctiveness, Uniformity and Stability (DUS) guidelines with 21 qualitative and 16quantitative characters and statistically analysed. Out of the different qualitative traits studied, ligule colour,panicle type, secondary branching, panicle axis and awning were found to be dimorphic; blade colour,blade pubescence, basal leaf sheath colour, collar colour, auricle colour, internode colour, culm strength,panicle exsertion, sterile lemma colour and stigma colour were trimorphic; leaf angle, culm angle, flag leafangle, apiculus colour and lemma palea colour were tetramorphic. Variations were observed for all thequalitative traits except the presence of collar, auricles, and split shaped ligule among the accessions. Thehighest frequency was observed for panicle architecture; the presence of secondary branching (96%) anddrooping type of panicle axis (95.3%).The weight of 1000 grain wt. which is a key character for selectinghigh yield variety, varied from 11.86g (Ranimasuri) to 23.09g (Kalkati). Similarly, panicle weight variedfrom 1.42g (Siresa) to 3.7g (Tulasiphool). The days to 50% flowering varied from 85.5 (Basumati) to 131(Basauoga) with a mean of 111.17 days indicating that they are mostly medium to late flowering landraces.High grain yield landraces are Basapatri2, Basumati, Kalkatia, Tulasibas. These landraces may be popularizedamong the farmers and the same may be used in hybridization programmes for varietal development.