In 6x6 diallel cross, heterosis was studied in 15 F1. The variances due to heterosis were
significant for all the characters. Overall heterosis partitioned into components and
showed that average, variety and specific heterosis were significant for plant height,
harvest index, days to 90% maturity and grain yield per plant. Spikes per plant estimated
significant variety and specific heterosis and 100-grain weight estimated significant
average and variety heterosis. Spike length and grains per spike showed only significant
specific heterosis. Mid parent heterosis for grain yield per plant was observed maximum
(110.34%) in the cross P3xP6.
Z. Akhter , A.K.M. Shamsuddin , M.M. Rohman , M. Shalim Uddin , M. Mohi-Ud-din and A.K.M.M. Alam , 2003. Studies on Heterosis for Yield and Yield Components in Wheat. Journal of Biological Sciences, 3: 892-897.