HETEROSIS STUDIES IN BLACKGRAM (Vigna mungo (L.) Hepper)

K. SANGEETHA¹*, C. VANNIARAJAN², N. MANIVANNAN³, N. SENTHIL⁴, R. ANANDHAM⁵, R. VIJAYALAKSHMI^6
1Department of Plant Breeding and Genetics, Agricultural College and Research Institute, Tamil Nadu Agricultural University, Coimbatore, 641003, Tamil Nadu, India
²Department of Plant Breeding and Genetics, Agricultural College and Research Institute, Tamil Nadu Agricultural University, Coimbatore, 641003, Tamil Nadu, India
³National Pulses Research Centre, Vamban, 622303, Tamil Nadu Agricultural University, Coimbatore, 641003, Tamil Nadu, India
⁴Department of Biotechnology, CPMB, Tamil Nadu Agricultural University, Coimbatore, 641003, Tamil Nadu, India
⁵Department of Agricultural Microbiology, Tamil Nadu Agricultural University, Coimbatore, 641003, Tamil Nadu, India
⁶Department of Food Science and Nutrition, Community Science College & Research Institute, Madurai, Tamil Nadu Agricultural University, Coimbatore, 641003, India
* Corresponding Author : dasha.sangeetha29@gmail.com

Received : 05-10-2019     Accepted : 26-10-2019     Published : 30-10-2019
Volume : 11     Issue : 10       Pages : 656 - 659
Genetics 11.10 (2019):656-659

Keywords : Heterosis, Blackgram
Academic Editor : Suleyman Cylek, Dr Muthana I Maleek, Wan Shu Cheng, Dr Sunil Kumar
Conflict of Interest : None declared
Acknowledgements/Funding : Authors are thankful to Department of Plant Breeding and Genetics, Agricultural College and Research Institute, Tamil Nadu Agricultural University, Coimbatore, 641003, Tamil Nadu, India
Author Contribution : All authors equally contributed

Field experiment was conducted in twenty hybrids synthesized with the use of nine parents (four lines and five testers in ‘Line x Tester mating design) along with a check variety ‘MDU 1’ to estimate the magnitude of economic heterosis for exploitation of hybrid vigour of crosses for higher yield. Three traits viz., plant height, days to 50 % to flowering to which negative heterosis is desirable for early maturation of crop. Based on experimental results of this investigation four crosses viz., ACM-16-017 x VBN8, ACM-16-017 x KKM1, ACM-16-014 x VBN8 and ACM-16-014 x KKM1 had exhibited higher positive significant standard heterosis for yield and yield attributing traits in positive direction and negative heterosis for two traits viz., days to 50 % flowering and pods per plant. The presence of magnitude of standard heterosis was higher in these crosses for yield and yield attributes. Hence, exploitation of hybrid vigour may be achievable in these crosses which might be helpful in the improvement of this crop.

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