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The mean performances of F5 progenies obtained from an interspecific cross between greengram (Vigna radiata cv (VBN(Gg)2)) and blackgram (Vigna mungo cv (Mash 114)) showed some of progenies viz., 7-6, 12-13, 12-24, 5-3 and 30-70 recorded significant superiority on seed yield per plant and also with some other yield traits too. Based on the leaf shape, the F5 progenies were grouped as lobed and ovate respectively as the green gram VBN(Gg)2 is lobed and blackgram Mash 114 is ovate to know the key component besides the superiority on yield and yield components among the segregating progenies as enormous variations were observed. The association analysis among the progenies based on the leaf shape groups revealed that the association among both the leaf group on seed yield per plant and its component traits are similar except for 100- seed weight as same as the parents. Hence the association confirmed that the variation has been governed by the blackgram genome to the green gram genome. Hence, the selection indices for ovate leaf group, emphasis should be given to 100- seed weight in addition to other traits viz., plant height, the number of branches per plant, the number of clusters per plant, the number of pods per clusters, the number of pods per plant, pod length and the number of seeds per pod. However, the selection indices for lobed leaf group to be given to all the traits except 100 – seed weight. In general, among the traits studied the first and foremost importance has to be given for the number of pods per plant, the number of clusters per plant and the number of branches per plant followed by other yield traits while framing the selection procedure for the interspecific progenies. Further selection is to be based on MYMV disease resistance and yield attributes for developing superior performing varieties among the derivatives of green gram and blackgram interspecific cross.

electronic journal of plant breeding

Genetic assessment of relationship for leaf shape towards yield traits among F5 progenies of interspecific cross derivatives of Vigna radiata x Vigna mungo