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Published in Scientific Papers. Series B, Horticulture, Vol. LXIII, Issue 1
Written by Maruti AMBIGER, Thangadurai DEVARAJAN, Ravichandra HOSPET

The wild Vigna is one of the important legumes known for their potential nutritional values and the field survey was conducted in areas of Western Ghats of Karnataka, Kerala and northern Karnataka. Total of sixteen accessions were collected during the period from 2015 to 2017. Thirteen quantitative and seven qualitative characters of morphometric analysis were considered to assess specific variations. The largest variations found in peduncle length and least in seed width of covariance 54.76 and 0.07 with considerable ranges 18.27 and 1.03 with respectively. The correlation coefficient of seed set percentage was positively correlated with plant height (0.407), terminal leaflet length (0.359), terminal leaflet width (0.295), pod length (0.320), seed length (0.289), seed width (0.080), seed weight (0.188), number of seeds per pod (0.445) and number of locules per pod (0.181). First two principal components (PC) has influenced with 82.00% of the total variations, the PC-1 alone accounted for 54.00% and it is directly influenced by traits of the number of flowers per raceme (0.334) and numbers of pods per peduncle (0.321). In factor analysis, all the four factors accounted for 90.00% of total variations, the first factor alone exhibit 42.00% was strongly associated with the peduncle length (0.428), the number of flower per raceme (-0.692), the number of pod per peduncle (-0.864), pod length (0.928) seed length (0.946), seed width (0.713) and the seed weight (0.972). In dendrogram, structure at 6% point the two sub-clusters (G3 and G4) exhibit closely relatives of V. dalzelliana var. dalzelliana (Kuntze) Verdc., of four accessions (DalKrt, DalAgb, DalKun and DalJof) and three accessions (DalMkf, DalBsg and DalRnp). Furthermore, at the point 19% stage of the main cluster and classified very distantly in two separate groups mainly V. stipulacea Kuntze of four accessions (StpKnt, StpHbr, StpKml, and StpKsr) and V. vexillata (L.) A. Rich, of five accessions (VexBgv, VexKrt, VexKdg, VexTnv and VexKut) with respective groups (G1and G2).This significant variability of the different characters of the diverse groups is most useful in future plant breeding programmes.

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