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.

Submitted

2023-03-30

Published

2023-03-30

Issue

Section

Articles

How to Cite

Performance of improved versions of Swarna introgressed with yield enhancing genes in multi-location trials: Improvement of Swarna for higher yield. (2023). ORYZA-An International Journal of Rice, 60(1), 106-116. https://epubs.icar.org.in/index.php/OIJR/article/view/134848