D. P. RATHOD, R. A. GAMI*, R. M. CHAUHAN, K. G. KUGASHIYA AND R. N. PATEL
Department of Genetics and Plant Breeding, S. D. Agricultural University, Sardarkrushinagar (Gujarat)
Sorghum Research Station, S. D. Agricultural University, Deesa-385 535 (Gujarat)
Department of Seed Technology, S. D. Agricultural University, Sardarkrushinagar (Gujarat)
Potato Research Station, S. D. Agricultural University, Deesa-385 535 (Gujarat)
*(e-mail : ramangami@gmail.com)
(Received : 29 February 2020; Accepted : 16 March 2020)
SUMMARY
The present investigation was carried out to study per se performance and magnitude of heterosis in sorghum [Sorghum bicolor (L.) Moench]. The 27 hybrids were generated by L × T fashion during early summer, 2018 at Sorghum Research Station, Sardarkrushinagar Dantiwada Agricultural University, Deesa using three females (2219A, 296A and 7A) as a line and nine males (DS 105, DS 173, DS 155, DS 137, DS 167, DS 176, DS 149, DS 156 and DS 161) as a tester. The resultant 27 hybrids along with 12 parents and two standard checks (GJ 39 and CSH 30) were evaluated in randomized block design with three replications at Sorghum Research Station, Sardarkrushinagar Dantiwada Agricultural University, Deesa during kharif, 2018. Perusal of per se performance of parents and their hybrids for different traits evinced that 296A among the females, DS 155 among the males and 7A × DS 156, 296A × DS 173 and 296A × DS 161 among the hybrids exhibited higher mean performance for green fodder yield per plant and some of the yield contributing traits. For earliness, female 2219A, male DS 173 and hybrid 2219A × DS 137 were found superior as they exhibited lower values for days to flowering. Looking to the grain yield per plant, 7A among the females, DS 155 among the males and 296A × DS 137 among the hybrids recorded more grain yield per plant. Significant heterosis over better parent and best standard check (GJ 39 and CSH 30) was observed in many hybrids for various traits. The hybrid 296A × DS 173 manifested significant and positive heterosis over better parent (82.20 %), standard check GJ 39 (52.45 %) and CSH 30 (13.45 %), while hybrids 7A × DS 173, 2219A × DS 155 and 296A × DS 137 evinced significant and positive heterosis over better parent and standard check GJ 39 for the green fodder yield while in case of grain yield, the hybrid 296A × DS 137, 7A × DS 161 and 7A × DS 149 exhibited significant and desirable heterosis over better parent (92.21, 3.95 and 31.05 %), standard check GJ 39 (30.84, 27.83 and 19.78 %) and CSH 30 (14.02 and 11.40 %), respectively.
Key words:Per se performance, heterobeltiosis, standard heterosis, yield