Performance of improved versions of Swarna introgressed with yield enhancing genes in multi-location trials


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Improvement of Swarna for higher yield

Authors

  • Kousik MBVN ICAR-Indian Institute of Rice Research, Hyderabad, Telangana, India
  • Punniakotti E ICAR-Indian Institute of Rice Research, Hyderabad, Telangana, India
  • Rekha G ICAR-Indian Institute of Rice Research, Hyderabad, Telangana, India
  • Chaitra K ICAR-Indian Institute of Rice Research, Hyderabad, Telangana, India
  • Harika G ICAR-Indian Institute of Rice Research, Hyderabad, Telangana, India
  • Dilip T ICAR-Indian Institute of Rice Research, Hyderabad, Telangana, India
  • Hajira SK ICAR-Indian Institute of Rice Research, Hyderabad, Telangana, India
  • Swapnil RK ICAR-Indian Institute of Rice Research, Hyderabad, Telangana, India
  • Laxmi Prasanna B Department of Plant Breeding, RARS, PJTSAU, Jagtial, Telangana, India
  • Mastanbee SK ICAR-Indian Institute of Rice Research, Hyderabad, Telangana, India
  • Anila M ICAR-Indian Institute of Rice Research, Hyderabad, Telangana, India
  • Ayyappa Dass M ICAR-Indian Institute of Rice Research, Hyderabad, Telangana, India
  • Kale RR Nirmal Seeds Pvt Ltd, Pachora Dist, Jalgaon, Maharashtra, India
  • Pragya Sinha ICAR-Indian Institute of Rice Research, Hyderabad, Telangana, India
  • Vivek G ICAR-Indian Institute of Rice Research, Hyderabad, Telangana, India
  • Fiyaz RA ICAR-Indian Institute of Rice Research, Hyderabad, Telangana, India
  • Senguttuvel P ICAR-Indian Institute of Rice Research, Hyderabad, Telangana, India
  • Subba Rao LV ICAR-Indian Institute of Rice Research, Hyderabad, Telangana, India
  • Prasad MS ICAR-Indian Institute of Rice Research, Hyderabad, Telangana, India
  • Laha GS ICAR-Indian Institute of Rice Research, Hyderabad, Telangana, India
  • Krishna Satya A Acharya Nagarjuna University, Guntur, Andhra Pradesh, India
  • Sudhakar P Acharya Nagarjuna University, Guntur, Andhra Pradesh, India
  • Neeraja CN ICAR-Indian Institute of Rice Research, Hyderabad, Telangana, India
  • Kim SR International Rice Research Institute, Los Banos, Philippines
  • KK Jena Kalinga Institute of Industrial Technology, Bhubaneswar, Odisha, India
  • Sundaram RM ICAR-Indian Institute of Rice Research, Hyderabad, Telangana, India

Keywords:

Swarna, high yield, SCM2, OsSPL14, marker assisted breeding

Abstract

Swarna (MTU7029), an Indian mega-variety of rice, is cultivated on an estimated 8Mha of land. There is a pressing need to address yield stagnation and wider adaptability to irrigated lowland and rainfed ecologies as a result of the negative consequences of climate change and population growth. The present study was aimed at improving Swarna for two yield-related traits through marker-assisted backcross breeding strategy by introgression of OsSPL14 (panicle branching) and SCM2 (stronger culm). Foreground and background selection was carried out at each generation. Homozygous BC2F2 plants harbouring both yield-enhancing genes were identified and advanced through pedigree selection till BC2F5 and evaluated in station trials. Three promising lines possessing higher yield over recurrent parent were identified, and a single line, IET 27661 exhibited superior yield in multi-location trials of the All India Coordinated Rice Improvement Programme (AICRIP) and was found to be promising.

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Submitted

2023-03-30

Published

2023-03-30

How to Cite

MBVN, K., E, P., G, R., K, C., G, H., T, D., SK, H., RK, S., B, L. P., SK, M., M, A., M, A. D., RR, K., Sinha , P., G, V., RA, F., P, S., LV, S. R., MS, P., GS, L., A, K. S., P, S., CN, N., SR, K., Jena, K., & RM, S. (2023). Performance of improved versions of Swarna introgressed with yield enhancing genes in multi-location trials: Improvement of Swarna for higher yield. ORYZA-An International Journal of Rice, 60(1), 106–116. Retrieved from https://epubs.icar.org.in/index.php/OIJR/article/view/134848

Issue

Vol. 60 No. 1 (2023): March 2023

Section

Articles

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Copyright (c) 2023 Association of Rice Research Workers

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