Vegetos
(An International Journal of Plant Research & Biotechnology)
Agronomic evaluation of introgressed lines developed for yellow vein mosaic disease resistance in okra (Abelmoschus esculentus L. Moench)
*Article not assigned to an issue yet
Singh Gagandeep, Pathak Mamta, Pathak Dharminder, Sharma Abhishek, Chawla Neena
Research Articles | Published: 15 March, 2024
Online ISSN : 2229-4473.
Website:www.vegetosindia.org
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Keywords:
Backcross breeding, Disease incidence (DI), Resistance, White fly, Yellow vein mosaic
Abstract
The yield and quality of okra is greatly reduced by Yellow Vein Mosaic Disease (YVMD). Although disease can be managed by controlling vector population through chemicals but the cultivation of resistant varieties is most economical and ecofriendly. Therefore, the present study was planned to evaluate the BC1F2:3 progenies derived from a cross between susceptible parent Punjab Padmani as female and resistant parent A. angulosus (IC-203,833) as pollen parent. A total of eighty-nine BC1F2:3 progenies along with seven checks (Punjab-8, Punjab Padmini, Punjab Suhawani, PORL, POL-44, POL-78 and Pusa Sawani) were grown in alpha lattice design comprising of eight blocks with two replications. The analysis for variation of data revealed that all the evaluated traits were found to be statistically different from all the checks. Among all evaluated progenies, forty-one progenies were found to be resistance with zero per cent disease incidence at 90 days after sowing. Over all, the seven lines (PAUAIOL-251,255,256,260,301,313 and 323) free from YVMD were identified that had significantly higher yield per plant as comparison to local check Punjab Suhawani (97.9 g/plant). The line PAUAIOL-324 was selected as top scorer for yield per plant (130.2 g) exhibiting significantly lower number of days to 50% flowering (38 days), higher no. of fruits on main stem (8.5), fruit weight (11.9 g) and plant height (80.0 cm) than local check Punjab Suhawani. The selected resistant lines could be advanced for use in future breeding program for okra improvement.
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Acknowledgements
The Authors are grateful to the authorities of Punjab Agricultural University, Ludhiana for providing the essential resources to this and support for the Ph D thesis work. The first author is the student of Mamta Pathak, for his Ph D thesis submitted to Punjab Agricultural University, Ludhiana.
Author Information
Department of Vegetable Science, College of Horticulture & Forestry, Ludhiana, India
gags_sandhu90@yahoo.com
Department of Plant Breeding and Genetics, College of Agriculture, Punjab Agricultural University, Ludhiana, India
Department of Vegetable Science, College of Horticulture & Forestry, Ludhiana, India