Evaluation of f4 progenies of a wide cross involving mungbean (cv. BDYR-1) and blackgram (cv. DPU 88-31) for yield and yield components
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Date
2006-06
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G.B. Pant University of Agriculture and Technology, Pantnagar - 263145 (Uttarakhand)
Abstract
The present investigation was carried out in Augmented Design during kharif season of 2005 with one hundred progenies of a wide cross (BDYR-1 × DPU 88-31), their parents and two checks (mungbean cv. Pant M-4 and blackgram cv. Pant U-35) at Crop Research Center of G.B. Pant University of Agriculture and Technology, Pantnagar, Uttaranchal. The wide cross was made in kharif 2001. The observations were recorded on days to first flower, plant height, primary branches/plant, clusters/plant, pods/cluster, pods/plant, pod length, seeds/pod, 100-seed weight and grain yield/plant to study phenotypic variability, character association, genetic divergence and genetic relationship using SDS –PAGE.
The ANOVA revealed highly significant genetic differences among check varieties for all the characters studied. In mungbean type of progenies the high values of P.C.V. were observed for grain yield/plant, clusters/plant, pods/plant and primary braches/plant while in case of backgram type of progenies high values of P.C.V. were noticed for cluster/plant, pods/cluster, pods/plant and seeds/pod. Amongst mungbean type of progenies only progenies no. 6 was significantly superior for cluster/plant. Amongst blackgram type of progenies, progeny no. 70 was significantly superior than best check for days to first flower, pods/cluster, pod length and seeds/pod. Character association study revealed highly significant and positive association of grain yield/plant with pods/cluster (0364) and pods/plant (0.364). Metroglyph and Index score analysis revealed maximum variability for different characters in fifth group which comprised of 60 progenies. The highest index score of 23 was observed for progeny no. 77. The protein profiling studies revealed genetic relationship among the progenies. Most of the progenies studied were generically different from their parents. Progenies showed parental type as well as recombinant type of bands
Therefore, it can be concluded that transgresive segregants for important yield characters can be obtained by inter specific hybridization between mungbean and blackgram.
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