Vol. 11, Issue 2 (2022)

Author(s):
Shravan Kumar Sharma, Anil Kumar Sharma, LD Sharma, Shyam Singh Rajput, Anita Parik and Madhu Yadav

Abstract:
The present investigation carried out by the assess the heterosis for grain yield and its contributing characters under three different environmental conditions using eight diverse barley parents along with their 28 F₁. Heterosis for grain yield per plant range from -11.48 per cent to 18.93 per cent in E₁, -8.38 per cent to 14.91 per cent in E₂ and -18.13 per cent to 18.5 per cent in E₃. Seven crosses in E₁, eleven crosses in E₂ and E₃ each exhibited positive significant heterosis while four crosses in E₁, six crosses in E₂ and nine in E₃ exhibited positive significant heterobeltiosis. The crosses BH902 × RD2904, BH902 × DWR143 (except E₁ both heterosis and HB), RD2904 × RD2909 (except E₁ and E₂ in HB), and DWR143 × DWR137 (except HB in E₁ and E₂) in all the environments exhibited positive significant heterosis. Hence, these crosses were considered to be most desirable for grain yield per plant. The heterosis over better parent varied from -15.92 (RD2909 x HUB242) to 11.54 (BH902 x DWR143) in E₁, -12.83 (UPB1059 x DWR137) to 10.43 (BH902 x RD2904) in E₂ and -21.13 (RD2909 x BH959) to 17.97 (HUB242 x BH959) in E_3, respectively. For heterotic effects of grain yield, four hybrids in E₁, six hybrids in E_2, nine hybrids in E₃ and four crosses in pooled analysis gave high amount of heterotic effects.