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Year : 2023, Volume : 36, Issue : 3
First page : ( 362) Last page : ( 370)
Print ISSN : 0971-8184. Online ISSN : 0976-1926. Published online : 2023 December 21.

Agro-morphological characterization and digitization of job’s tears (Coix lacryma-jobi L.) germplasm: A minor cereal crop of northeastern India

Laxmisha KM1, Bhatt Kailash C.1,*, Arya Mamta2, Bhardwaj Rakesh1, Semwal Dinesh P.1, Gupta Veena1

1ICAR-National Bureau of Plant Genetic Resources, Pusa Campus, New Delhi, India

2ICAR-NBPGR, Regional Station, Bhowali, Uttarakhand, India

*Author For Correspondence: kailash.bhatt@icar.gov.in

Online Published on 21 February, 2024.

Received:  15  December,  2022; :  9  February,  2023; Accepted:  10  February,  2023.

Abstract

Thirty-seven Job’s tears accessions of India’s northeastern hill region (NEH) were characterized for nine quantitative and eight qualitative traits. Prominent furrow and elliptic shape of grain in soft-shelled types are supposed to be the most important trait that indicates the domestication trend of the crop in NEH region. Principal component analysis showed that agro-morphological traits, namely time for first heading, days to 80% maturity, seed yield/plant (g), number of culms, and length of culm (cm) have significantly contributed to the diversity. Correlation analysis has shown significant correlations between different yield-contributing traits. Diversity and potential traits in each cluster were also identified through cluster analysis. Grid mapping was done to identify the areas for collection of trait-specific germplasm like higher number of culms, length of culm and hundred seed weight. The germplasm accessions IC0332644, IC0416831 and IC0540173 were identified as promising genotypes.

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Keywords

Diversity analysis, Digitization, Job’s tears, Northeastern India.

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