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Estimation of heterosis and combining ability by half diallel crossing in maize . | ||
| Journal of Kerbala for Agricultural Sciences | ||
| Article 9, Volume 2, Issue 1, 2015, Pages 136-146 PDF (647.77 K) | ||
| Author | ||
| Nawfle adnan sppri abd- gapar | ||
| College Agriculture - Anbar University | ||
| Abstract | ||
| Six inbred lines of corn (Zea mays L.) were studied planted (S6 , HS , AGR183 , ZP607 , ZM19R and ZM43R( to attain hybridization program of (Half – Diallel Cross). The research included 21 genotypes (6 parents + 15 hybrids) grown in fields of farmers field in AL- sofia area in east of Ramadi city in AL –anbar for spring season 2013 by using RCBD design with three replications , to study heterosis and combining ability for characters (number of days to female flowering , number of plant ears, number of row grains, weight of 300 grains and individual plant yield . The research showed that there were significantly differences at for all characters, also showed that the hybrids (ZM43R×AGR183) , (AGR183×HS) showed desired heterosis for most characters studied as compared with mid parents . Two parents (HS and AGR183) showed general combining ability effects,while the hybrids (S6×HS) ‘ (ZP607×ZM43R) ، (AGR183×ZM43R) and (HS×AGR183( were showed high specific combining ability effects in most of the studied characters . | ||
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