Heterosis and Combining Ability in Rape Seed (Brassica rapa L.)

Heterosis and Combining Ability in Rape Seed (Brassica rapa L.)

Heterosis and Combining Ability in Rape Seed (Brassica rapa L.) involving 7 x 7 half diallel cross excluding reciprocal.

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Field experiment on rapeseed (Brassica rapa L.) involving 7x7 half diallel cross excluding reciprocal were done at the Sher-e-Bangla Agricultural University, Dhaka during the winter season of 2006-2007 to estimate their Heterosis and Combining ability. Out of 21 crosses C2, C5, C7 and C14 showed highly significant heterosis over both mid and better parent for seed yield per plant. The hybrid C11, C5, C10, C6, C21 showed significant heterosis for other yield contributing characters. The variance due to GCA and SCA were highly significant for all the characters except hundred seed weight and see...