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International Journal of Current Microbiology and Applied Sciences (IJCMAS)
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National Academy of Agricultural Sciences (NAAS)
NAAS Score: *5.38 (2019)
[Effective from January 1, 2019]
For more details click here

ICV 2017: 100.00
Index Copernicus ICI Journals Master List 2017 - IJCMAS--ICV 2017: 100.00
For more details click here

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PRINT ISSN : 2319-7692
Online ISSN : 2319-7706
Issues : 12 per year
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Editor-in-chief: Dr.M.Prakash
Index Copernicus ICV 2017: 100.00
NAAS RATING 2018: 5.38

Int.J.Curr.Microbiol.App.Sci.2019.8(1): 353-367
DOI: https://doi.org/10.20546/ijcmas.2019.801.036


Heterosis for Yield and its Components in Okra (Abelmoschus esculentus L. Moench)
Prakash Kerure1*, M. Pitchaimuthu2, V. Srinivasa3 and R. Venugopalan4
1ICAR-Krishi Vigyan Kendra, Chitradurga 577 598, Karnataka, India
2ICAR-Indian Institute of Horticultural Research, Bengaluru-560 089, Karnataka, India
3University of Agricultural and Horticultural Sciences, COH, Mudigere, Karnataka, India
4ICAR-Indian Institute of Horticultural Research, Bengaluru-560 089, Karnataka, India
*Corresponding author
Abstract:

The study of heterosis would help in selection of heterotic crosses for commercial exploitation of F1 hybrids in okra (Abelmoschus esculentus (L.) Moench). 45 F1s were developed by crossing 10 elite lines of okra in half diallel fashion during summer 2016. All 45 F1s along with their 10 parents and one standard control (Nunhems hybrid Shakti) were evaluated in a randomized complete block design with three replicates during late kharif (July to October) 2016 at ICAR- Krishi Vigyan Kendra, Babbur Farm, Hiriyur, Chitradurga, Karnataka, India, for heterosis of yield and its components of okra. Significance of mean squares due to genotypes revealed the presence of considerable genetic variability among the material studied for almost all yield and yield attributes. The overall maximum positive significant heterosis for total yield per plant was observed in cross IIHR-875 x IIHR-478 (112.89%) over relative heterosis, (83.78%) over heterobeltiosis and (168.55%) over standard heterosis. Negatively heterotic crosses like IIHR-562 x IIHR-444 for days to 50% flowering (-8.70%) and IIHR-567 x IIHR-107 for fruiting nodes (-9.03%) respectively, are important to exploit heterosis for earliness in okra. Out of 45 F1s, 44 F1s crosses exhibit significant standard heterosis in any given direction for total yield per plant except cross IIHR-604 x IIHR-107 (-0.13%). The F1 hybrid IIHR-875 x IIHR-478 with high yield potential has the potential for commercial cultivation after further evaluation for late kharif season of Karnataka.


Keywords: Abelmoschus esculentus, F1 hybrids, Heterotic pattern, Hybrid vigour, Parental lines
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How to cite this article:

Prakash Kerure, M. Pitchaimuthu, V. Srinivasa, and Venugopalan, R. 2019. Heterosis for Yield and its Components in Okra (Abelmoschus esculentus L. Moench).Int.J.Curr.Microbiol.App.Sci. 8(1): 353-367. doi: https://doi.org/10.20546/ijcmas.2019.801.036