Vol. 6 (6) : November-December 2015 issue
Green Farming Vol. 6 (6) : 1214-1218 ; November-December, 2015
Heterosis for grain yield and its attributes in Highland temperate maize germplasm
GOWHAR ALI1, Z.A. DAR2, I. ABIDI3, A.A. LONE4, M.A. MIR4 and A. GAZAL5
Plant Breeding & Genetics Department, Sher-e-Kashmir University of Agricultural Sciences & Technology of Kashmir, Shalimar Campus, Srinagar - 190 025 (Jammu & Kashmir)
Designation : 1,3,4Asstt. Professor, 2Assoc. Professor, 6Res. Scholar 5Techn. Asstt. *(mirashraf1848@gmail.com)
Subject : Crop Genetics and Plant Breeding
Paper No. : P-3196
Total Pages : 5
Received : 19 January 2015
Revised accepted : 26 October 2015
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Citation :
GOWHAR ALI, Z.A. DAR, I. ABIDI, A.A. LONE, M.A. MIR and A. GAZAL. 2015. Heterosis for grain yield and its attributes in Highland temperate maize germplasm. Green Farming Vol. 6 (6) : 1214-1218 ; November-December, 2015
ABSTRACT
The present investigation was carried out to generate information on heterosis.The experimental material comprised of 66 F1s generated by crossing 12 diverse inbred lines of maize (Zea mays L.) in diallel mating design and these 66 F1s along with 12 parents and two standard checks were evaluated in randomised complete block design in two replications at two locations namely High Altitude Rice Research Sub-station, Larnoo (E1) and Experimental Farm of Division of Plant Breeding and Genetics, Shalimar (E2) during kharif 2011. Significant and desirable heterosis was observed for most of the traits. The maximum heterosis for grain yield was observed in the crosses, PMI-117 x PMI-298, PMI-67 x PMI-298, PMI-224 x PMI-298, PMI-118 x PMI-298 and PMI-64 x PMI-67, respectively. Nature and extent of heterotic effects over better parent and standard checks in desired direction were of appreciable magnitude for yield and component traits suggesting the possibility of yeild improvement through exploitation of heterosis.
Key words :
Germplam, Heterosis, Grain yield, Temperate maize.
