HETEROSIS AND INBREEDING DEPRESSION FOR YIELD AND YIELD COMPONENTS IN SESAME [SESAMUM INDIUM L.]

A.K. MISHRA¹, S. NAPIT²*
¹ICAR-Krishi Vigyan Kendra, Shajapur, 465001, Rajmata Vijayaraje Scindia Krishi Vishwa Vidyalaya, Gwalior, 474002, Madhya Pradesh, India
²Maharaja Chhatrasal Bundelkhand University, Chhatarpur, 471001, Madhya Pradesh, India
* Corresponding Author : sudhir.s@live.in

Received : 11-07-2018     Accepted : 20-08-2019     Published : 30-08-2019
Volume : 11     Issue : 8       Pages : 629 - 631
Genetics 11.8 (2019):629-631

Keywords : Heterosis, Inbreeding depression, Yield component, Heterobeltiosis
Conflict of Interest : None declared
Acknowledgements/Funding : Authors are thankful to ICAR-Krishi Vigyan Kendra, Shajapur, 465001, Rajmata Vijayaraje Scindia Krishi Vishwa Vidyalaya, Gwalior, 474002, Madhya Pradesh, India
Author Contribution : All authors equally contributed

Heterosis and inbreeding depression for yield and yield components were evaluated in 28 crosses of Sesame derived from 8x8 diallel. Heterosis was worked out over mid and better parent. Two cross combination TKG -22 X RT -54 and JTS-8X TKG 306 showing highly significant positive heterosis coupled with heterobeltiosis and non significant inbreeding depression in F2 can be exploited for developing superior verities. The best heterotic combination for seed yield was TKG-22 X RT-54 giving 183.72%, heterosis, heterobeltiosis 136.52% with 15.01gm F1 mean. The crosses RT-54 X JLT-7 and RT-54 XN-32 which gave significant negative heterosis and hetrobeltiosis along with non significant inbreeding depression in F2 could be used for obtaining early maturing genotype.

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