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International Journal of Pure & Applied Bioscience (IJPAB)
Year : 2019, Volume : 7, Issue : 1
First page : (389) Last page : (397)
Article doi: : http://dx.doi.org/10.18782/2320-7051.7213

Floral Abscission in Pigeonpea (Cajanus cajan (L.) Millsp.): Genotypic Disparity in Land Races, Hybrids and Advanced Breeding Lines

Priyanka Kulkarni¹, Muniswamy, S.¹*, Lokesha, R.¹, Girish, G.¹, Suma, T. C.² and Mahaling³, D. M.³

¹Department of Genetics & Plant breeding, 2Department of Crop Physiology, 3Department of Plant Pathology, College of Agriculture, University of Agricultural Sciences, Raichur- 584101
*Corresponding Author E-mail: muniswamygpb@gmail.com
Received: 22.12.2018 | Revised: xx.xx.2019 | Accepted: xx.xx.2019  

 ABSTRACT

Abscission of flower/s and fruit/pod/s is one of the momentous bottlenecks in pulses in general and pigeonpea in particular, resulting in poor reproductive efficiency. Abscission occurs both before and after fertilization. Knowledge on nature and extent of genetic variation available in the genotypes help breeders for planning breeding programmes to identify genotypes that retain maximum flowers hence increase pod set. A total of 51 genotypes were studied; 37 advanced stabilized breeding lines, six hybrids and eight landraces. The results exhibited a wide genotypic variation in flower production and abscission. Seven advanced genotypes including Maruti, BSMR-736 and GRG-152; hybrids ICPH-2751 and ICPH-3762; landraces Raichur pink, Bennur local and Katti beeja showed good number of pods set per plant. Hence, the trait can be used in identifying the genes governing it and developing mapping population, also can be used in further breeding and crop improvement programmes.

Key words: floral abscission, pigeonpea, land races, variability, hybrids.

Full Text : PDF; Journal doi : http://dx.doi.org/10.18782

Cite this article: Kulkarni, P., Muniswamy, S., Lokesha, R., Girish, G., Suma, T.C. and Mahaling, D.M., Floral Abscission in Pigeonpea (Cajanus cajan (L.) Millsp.): Genotypic Disparity in Land Races, Hybrids and Advanced Breeding Lines, Int. J. Pure App. Biosci.7 (1): 389-397 (2019). doi: http://dx.doi.org/10.18782/2320-7051.7213