ASSESSMENT OF GENETIC VARIABILITY IN PARENTS, F1 AND F2 GENERATIONS AND YIELD CONTRIBUTING CHARACTERS IN MAIZE (Zea mays L.)

VISHWANATH¹*, S. KUMAR², P.C. YADAV³, L. SINGH⁴, Y. PANDAY⁵, R.K. PATEL^6
1Department of Genetics and Plant Breeding, Chandra Shekhar Azad University of Agriculture & Technology, Kanpur, 208002, Uttar Pradesh, India
²Department of Genetics and Plant Breeding, Chandra Shekhar Azad University of Agriculture & Technology, Kanpur, 208002, Uttar Pradesh, India
³Department of Genetics and Plant Breeding, Chandra Shekhar Azad University of Agriculture & Technology, Kanpur, 208002, Uttar Pradesh, India
⁴Department of Genetics and Plant Breeding, Chandra Shekhar Azad University of Agriculture & Technology, Kanpur, 208002, Uttar Pradesh, India
⁵Department of Genetics and Plant Breeding, Chandra Shekhar Azad University of Agriculture & Technology, Kanpur, 208002, Uttar Pradesh, India
⁶Bundelkhand University, Jhansi, 284128, Uttar Pradesh, India
* Corresponding Author : vishwa8159@gmail.com

Received : 05-11-2022     Accepted : 27-11-2022     Published : 30-11-2022
Volume : 14     Issue : 11       Pages : 11883 - 11885
Int J Agr Sci 14.11 (2022):11883-11885

Keywords : F1s, F2s generation, Variability
Academic Editor : Dr R. S. Umakanth, Rohlupuii, Dr J. R. Talaviya
Conflict of Interest : None declared
Acknowledgements/Funding : Authors are thankful to Department of Genetics and Plant Breeding, Chandra Shekhar Azad University of Agriculture & Technology, Kanpur, 208002, Uttar Pradesh, India; Bundelkhand University, Jhansi, 284128, Uttar Pradesh, India and UGC-Rajiv Gandhi National Fellowship (RGNF) for research
Author Contribution : All authors equally contributed

Analysis of variance were found out for all sixteen characters viz. days to 50% tasseling, days to 50% silking, physiological maturity, plant height (cm), cob length (cm), cob diameter (cm), kernel rows per cob, kernels per row, 100 seed weight (g), germination (%), seedling length (cm.), seed vigour index, harvest index (%), biological yield, grain yield per plant and shelling (%). Highly significant differences were observed among the treatment for all sixteen characters. The treatment variance was further partitioned into its components viz. parents, F1s, F2s, parents vs F1s and parents vs F2s highly significant differences were observed among them except seedling length and seed vigour index in parents vs F2s. It’s indicated that more variability observed base material of different traits as well as all possible combination of generated materials

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