Genetic Diversity among Advanced Breeding Lines for Yield and Yield Contributing Traits Along with Grain Micronutrients in Pearl Millet: Genetic diversity among advance breeding lines

Rachana M; B K Athoni; C D Soregaon; G. M. Sajjanar; A. H. Biradar

doi:10.59512/aaz.2023.62.2.4

Authors

Rachana M UAS, Dharwad
B K Athoni
C D Soregaon
G. M. Sajjanar
A. H. Biradar

https://doi.org/10.59512/aaz.2023.62.2.4

Abstract

Studying about genetic diversity permits the classification of germplasm into heterotic groups, which is particularly important in development of varities and for hybrid breeding. The study was conducted to determine the magnitude of genetic diversity among 184 advanced breeding lines and four checks viz., ICMV-221 (NC), ICTP-8203 (NC), VPMV-9 (LC) and Dhanashakti (NC), were assessed using Augmented Block Design during kharif 2021-22 at two locations viz., Regional Agricultural Research Station, Vijayapur and Agricultural Research Station, Mudhol.

Genetic diversity study indicated that among various characters studied, iron content contributed the most to the total divergence. Based on D² values, the advanced breeding lines were grouped into nine clusters. Among nine clusters, cluster I was the largest, with 78 lines, followed by cluster Ⅳ (36) and cluster II (31). Fe & Zn 115-2-1 (cluster VII) and WSBLT 59-2 (cluster V) had the greatest D² distance, measured at 1091.086, HTRLT 2-2 (cluster VII) and WSBLT 59-2 (cluster V) placed second at 1051.169 and Fe & Zn 115-2-1 (cluster VII) and WSBLT 51-2 (cluster V) were third at 1043.287 D² distance. The highly divergent pairs which were identified in the present study can be crossed for creating variability and isolating better ‘R’ lines as well as ‘B’ lines.

Key words: Diversity, Augumented design, iron content, grain yield, D² distance and clusters

Downloads

Download data is not yet available.

References

Anonymous 2021. Indiastat, 2021, Ministry of Agriculture and Farmers Welfare, Governement of India. [www.indiastat.com]

Athoni, B.K., Ishwar, H.B., Pattanashetty, S.K. and Guggari, A.K. 2016. Genetic diversity for yield and its component traits in pearl millet [Pennisetum glaucum (L.) R. Br.]. International Journal of Science and Nature 7(4): 795-798. http://oar.icrisat.org/10395.

Gupta, S.K., Patil, S.K., Rathore, A., Yadav, D., Sharma, L.D., Mungra, K.D., Patil, H.T., Gupta, S.K., Kumar, R., Chaudhary, V., Das, R., Kumar, A., Singh, V., Srivastava, R.K., Gupta, R., Boratkar, M., Varshney, R.K., Rai, K.N. and Yadav, O.P. 2020. Identification of heterotic groups in South Asian bred hybrid parents of pearl millet. Theoretical and Applied Genetics 133: 873–888https://doi.org/10.1007/s00122-019-03512-z

Kumar, S., Palve, A., Joshi, C., Srivastava, R.K., Rukhsar. 2019. Crop biofortification for iron (Fe), zinc (Zn) and vitamin A with transgenic approaches. Heliyon 5(6): e01914, doi: 10.1016/j.heliyon.2019.e01914

Mahalingam, G., Rai, K.N., Cherian, B., Pfeiffer, H., Kanatti, A. and Shivade, H. 2019. Breeding biofortified pearl millet varieties and hybrids to enhance millet markets for human nutrition. Agriculture 9(5):106. https://doi.org/10.3390/agriculture 9050106

Mahalingam, G., Rai, K.N., Shanmugasundaram, P., Dwivedi, S.L., Sahrawat, K.L., Muthaiah, A.R. and Rao, A.S. 2013. Combining ability and heterosis for grain iron and zinc densities in pearl millet. Crop Science 53: 507-517.

Pujar, M., Govindaraj, M., Gangaprasad, S., Kanatti, H. and Shivade, H. 2020. Genetic variation and diversity for grain iron, zinc, protein and agronomic traits inadvanced breeding lines of pearl millet [Pennisetum glaucum (L.) R. Br.] for biofortification breeding. Genetic Resource and Crop Evolution 67: 2009-2022. https://link.springer.com/article/10.1007/s10722-020-00956-x

Stuber, C.W. 1994. Success in the use of molecular markers for yield enhancement in corn. Proceedings in 49th annual corn and sorghum industry conference, American seed trade association, 49: 232-238.

Yadav, S.L. 2019. Genetic variability and divergence study for seed yield and it’s components in pearl millet [Pennisetum glaucum (L.) R. Br.]. M.Sc. (Agri) Thesis, Agriculture University, Jodhpur, India.