An analysis of Yield gains through breeding high yielding varieties in urdbean and mungbean

Yield gains through breeding in urdbean and mungbean

Abstract

One varietal trial each in urdbean and mungbean, each comprising 10 varieties released during
succeeding years since 1975, was conducted following randomized complete blockdesign (RCBD)
in three replications during kharif 2013. The analysis of variance showed significant differences
among varieties in each trial. Significant genetic advances were observed for earliness in newly
released varieties of both urdbean (~ 4 days) and mungbean (4.6 days), implying substantial gain in
per day productivity. Newly released varieties urdbean (DBGV-5 and IPU 2-43) did not display any
yield advancement over the oldest one (T-9). However, a significant genetic gain in yield (62.60
kg/ha) was recorded in mungbean due to a recently released variety 'DGGV-1', indicating about
60% contribution of improved varieties towards increase of national average yield (105 kg/ha)
during the period 1990-2015. In conclusion, the increased area coverage under HYVs having
multiple disease resistance and better agronomic practices could reasonably explain the
productivity (average yield) gains in both urdbean and mungbean.