Vol. 11, Issue 12 (2022)

Limited genetic variability in the upland cotton (Gossypium hirsutum L.), has stagnated the further genetic improvement in various traits. Many reports suggested for interspecific hybridization for enhancing genetic variability. The present study hence, evaluated RILs (F16 and F17) derived from interspecific hybridization (Gossypium hirsutum cv. DS-28 x Gossypium barbadense cv. SBYF425) during 2020-21 at ARS Dharwad and at ARS Dharwad & at MARS Raichur during 2021-22 for yield and plant architectural traits. The recorded range i.e., number of times the trait variation greater than the minimum trait value for plant height (0.96), number of monopodia plant^-1 (11.88), number of sympodia plant^-1 (0.71), number of bolls plant^-1 (2.50), fruiting points plant^-1 (2.36), internodal distance (1.59), inter boll distance (4.33), sympodial angle at 50% plant height (1.04), sympodial length at 50% plant height (3.20), plant diameter (5.41) and seed cotton yield plant^-1 (8.22) indicates the presence high genetic variability. And, the presence of high heritability (> 60%), for all these traits suggests for involving these lines for commercial varietal development. The compact architectured lines, RIL-160, RIL-120, RIL-117, and RIL-167 have yielding ability numerically lower than normal best yield parent DS -28 but could be potential lines for high-density planting which intern enhance productivity.