Chief EditorJ. S. Sandhu
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Exploration, Collection and Characterization of Horsegram [Macrotyloma uniflorum (Lam.) Verd.] Germplasm
First Online 19-10-2021|
Methods: Expedition was conducted during Rabi 2018 and 25 horse gram seed samples were collected from the local regions of tribal tracts of Eastern Ghats of Andhra Pradesh along with passport data using the GPS machine. The germplasm lines were evaluated and morphologically characterized during Rabi 2019 at Agricultural Research Station, Yellamanchili, Visakhapatnam, Andhra Pradesh, India, for fifteen characters. Principal component analysis was carried out to identify the diverse germplasm lines and to know the contribution of the variables.
Result: The investigation showed that all the horse germplasm lines are inherited to the farmers from their ancestors. Study revealed that, the seed yield per plant showed a range of 2.40 to 6.40 g and the days maturity recorded a range of 87 to 106 days. Principal component analysis showed that all the variables except 100 seed weight (g) showed positive loading. Among the variables plant height (cm), dry haulm weight (g) and seed yield per plant recorded maximum percentage of contribution. The genotypes HG-24, HG-7, HG-19, HG-15, HG-22 recorded highest positive scores. The genotypes HG-5, HG-10, HG-3, HG-16, HG-8, HG-4, HG-10, HG-24 and HG-7 has shown wide divergence which may be further adopted in the breeding programme for horsegram improvement.
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