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Year : 2021, Volume : 34, Issue : 2
First page : ( 279) Last page : ( 289)
Print ISSN : 0971-8184. Online ISSN : 0976-1926. Published online : 2021 August 16.
Article DOI : 10.5958/0976-1926.2021.00027.9

Deciphering Morpho-taxonomic Variability in Lathyrus Species

Tripathi Kuldeep1*, Pamarthi RK2, Gowthami R3, Gore Padmavati G4, Gayacharan C1, Barpete Surendra5, Singh Neeta4, Sarker Ashutosh5, Kumar Ashok1

1Division of Germplasm Evaluation, ICAR-National Bureau of Plant Genetic Resources, Pusa Campus, New Delhi-110012, India

2Division of Plant Exploration and Germplasm Collection, ICAR-NBPGR, Pusa Campus, New Delhi-110012, India

3Tissue Culture and Cryopreservation Unit, ICAR-National Bureau of Plant Genetic Resources, Pusa Campus, New Delhi-110012, India

4Division of Germplasm Conservation, ICAR-National Bureau of Plant Genetic Resources, Pusa Campus, New Delhi-110012, India

5ICARDA-Food Legume Research Platform, Amlaha-466113, Madhya Pradesh, India

*Email: kdtripathi89@gmail.com; kuldeep.tripathi@icar.gov.in

Online published on 16 February, 2022.

Received:  04  ,  2021; :  07  ,  2021; Accepted:  16  ,  2021.

Abstract

Twenty accessions of Lathyrus belonging to four different species such as L. sativus, L. cicera, L. aphaca and L. odoratus were obtained from ICAR-National Bureau of Plant Genetic Resources (NBPGR) genebank, New Delhi and the International Center for Agricultural Research in the Dry Areas (ICARDA). All the accessions were grown at the experimental farm of ICAR-NBPGR, New Delhi, India, during the rabi seasons of 2018-2019 and 2019-2020. Agro-morphological delineation was carried out using 24 qualitative and 18 quantitative traits by following standard Lathyrus descriptors. The results indicated a wide range of variation for both qualitative and quantitative characteristics among the accessions. Remarkable distinguishing feature was observed at the different crop growth stages like seedling, pod and maturity stage. Among the species, L. odoratus had early maturity, whereas L. aphaca exhibited late maturity. The average value of hundred seed weight was highest in L. sativus followed by L. cicera and L. odoratus while the lowest value was recorded in L. aphaca. Based on hierarchical clustering, all accessions were grouped into four clusters. Our findings could be used as reference in species identification and understanding the diversity within and among Lathyrus species.

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Keywords

Lathyrus aphacaL. ciceraL. odoratusL. sativus, Morphology, Taxonomy.

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