HETEROSIS FOR YIELD AND YIELD COMPONENTS IN MUNGBEAN [VIGNA RADIATA (L.) WILCZEK]

Abstract

Study of heterosis in 28 different hybrids of mungbean resulting from 8 X 8 diallel, excluding reciprocals indicated a pronounced hybrid vigour for yield and most of the yield components. Heterosis to the extent of 75.9 and 50.3% over the midparent and better parent, respectively, was recorded for grain yield per plant. Crosses between high x high and high x low gca parents exhibited greater heterosis. Heterosis for yield was generally accompanied by heterosis for yield components. Six hybrids were identified as promising for many desirable traits and they may be of much use in exploiting hybrid vigour in mungbean.