Siwach, S. S.Deshmukh, Jagadeesh D2016-11-162016-11-162009http://krishikosh.egranth.ac.in/handle/1/85799The genetics of yield and its component characters in desi cotton (Gossypium arboretum L.) was studied during kharif 2008 at CCS Haryana Agricultural University, Hisar. The six diverse parents were ii chosen to generate the experimental material for the present study. These six parents were used to develop three crosses namely GMS 11 X P 502, GMS-1 X ADDH 7 and G 21 X GCD 26. The six basic generations (P1 , P2, F1, F2, BC1 BC2) of above mentioned crosses were grown in compact family block design with tree replications. The data were recorded on character of economic importance namely days to first flower, number of bolls per plant, boll weight (g), seed cotton yield per plant (g), seed index (g), lint index (g), and ginning out turn (%). In general, mean values in all the six generations of the three crosses were higher for almost all the characters. The simple additive dominance model was found adequate for boll weight (g), seed index (g), lint index (g), and ginning out turn (%). Based on simple additive dominance model and six parameter model, all the three types of gene interactions (additive X additive), (additive X dominance) and (dominance X dominance) played significant role in the inheritance of days to first flower, number of bolls per plant, boll weight (g) and ginning out turn (%). Duplicate type of epistasis was observed for days to first flower, ), lint index (g), and ginning out turn (%).enBacteria, Azotobacter, Sowing, Planting, Insecticides, Biological development, Pesticides, Biofertilizers, Wheats, woodThesis