CHARACTER ASSOCIATION AND PATH ANALYSIS STUDIES IN SESAME (SESAMUM INDICUM L.) ADVANCED BREEDING LINES AND VARIETIES

E. RAMPRASAD¹*, S. SENTHILVEL², J. JAWAHARLAL³, K.N. YAMINI⁴, K.S. DANGI^5
1Institute of Biotechnology, College of Agriculture, Professor Jayashankar Telangana State Agricultural University, Rajendranagar, Hyderabad, 500030, Telangana
²Crop Improvement, ICAR-Indian Institute of Oilseeds Research, Rajendranagar, Hyderabad, 500030, Telangana
³Crop Improvement, ICAR-Indian Institute of Oilseeds Research, Rajendranagar, Hyderabad, 500030, Telangana
⁴Institute of Biotechnology, College of Agriculture, Professor Jayashankar Telangana State Agricultural University, Rajendranagar, Hyderabad, 500030, Telangana
⁵Department of Genetics and Plant Breeding, College of Agriculture, Professor Jayashankar Telangana State Agricultural University, Rajendranagar, Hyderabad, 500030, Telangana, India
* Corresponding Author : ramprasaderuvuri@gmail.com

Received : 01-03-2019     Accepted : 15-03-2019     Published : 30-03-2019
Volume : 11     Issue : 3       Pages : 575 - 577
Genetics 11.3 (2019):575-577

Keywords : Sesame, Genotypes, Traits, Character association, Path analysis
Academic Editor : Dr Kunjal M Patel
Conflict of Interest : None declared
Acknowledgements/Funding : Authors are thankful to ICAR-Indian Institute of Oilseeds Research, Rajendranagar, Hyderabad, 500030, Telangana for supporting this work. Authors are also thankful to Professor Jayashankar Telangana State Agricultural University, Rajendranagar, Hyderabad, 500030, Telangana and Government of Andhra Pradesh for providing financial support
Author Contribution : All authors equally contributed

The present study was undertaken with the objective to determine the degree of association between yield and it`s component characters and their direct, indirect effects on seed yield in sesame (Sesamum indicum L.). 41 genotypes were evaluated for identifying their efficiency with respect to 10 quantitative characters. Character association studies revealed significant positive association of seed yield per plant with plant height, number of branches per plant, first capsule height, capsules per plant, and 1000-seed weight. This indicated the possibility of simultaneous selection of all these characters for yield improvement. A critical path analysis revealed that the number of capsules per plant, diameter of stem, capsule length, number of branches per plant and plant height directly affected the seed yield per plant. This indicated that direct selection for yield improvement via these traits would be possible.

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