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Paper Details

Effect of planting dates and genotypes on root characteristics and yield of mungbean and urdbean during spring season

AVESH KUMAR*, N.P. SINGH AND SANDEEP KUMAR1

Journal Title:International Journal of Agricultural Sciences
Abstract


Two sets of experiments one each on mungbean and urdbean were undertaken during spring seasons of 2001-02 and 2002-03 at Govind Ballabh Pant University of Agriculture and Technology, Pantnagar to evaluate the root characteristics and yield of mungbean and urdbean under various planting dates and varieties. In each set of experiment, nine treatments consisted of three varieties each of mungbean (Narendra M-1, Pant M-2 and Pant M-5) and urdbean (Narendra U-1, Pant U-19 and Pant U-35) and three common planting dates (February 20, March 12 and April 1) were laid out separately in split-plot design keeping planting dates in the main plots and varieties in sub-plots with three replications. Results revealed that March 12 planting of mungbean and urdbean produced higher no. of grains/pod, pods/plant and improved source-sink relationship which led to generation of significantly higher grain yield than February 20 and April 1. While, the bolder grains were recorded under February 20 planting conditions. Grain yield / ha was significantly higher in Pant M-2 variety of mungbean and Narendra U-1 of urdbean, whereas Pant M-5 variety of mungbean and Pant U-19 of urdbean recorded the highest harvest index, respectively during the course of investigation. Planting of mungbean and urdbean beyond February had better root development. The no. of nodules / plant, dry weight of nodules, primary root length and dry weight of root/plant of mungbean and urdbean were recorded higher under late sowing of April-1. Narendra M-1 variety of mungbean and Narendra U-1 of urdbean recorded higher number of nodules/ plant, dry weight of nodules, primary root length and dry weight of root/plant during both the seasons. Despite the production of higher 1000-seed wt., Pant M-5 variety of mungbean and Pant U-19 of urdbean yielded lower

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