ESTIMATION OF SOME GENETIC FEATURES IN CORN USING PARTIAL MUTUAL CROSSING ZEA MAYS L | ||
| AL-TAQANI | ||
| Article 1, Volume 25, Issue 4, December 2012, Pages 0-0 | ||
| Abstract | ||
| This experiment was conducted on eight pure inbreds of corn. Partial crossings were done among them in the fall season 2008. Twelve single hybrids were colleced in the end of season. The single hybrids crossing with the parents in spring season 2009 in an comparision trial according to R.C.B.D with four replicates to produce single hybrids.The hybrid (2X5) gave the highest averages of grain yield 9.50 ton / ha.The same hybrid have the highest averages of hybrid vigor 167.35%. The lines( 5 and 8 ) producted higher possetive general commbing ability for all study qualities. The hybrid (5X8)gave the highest averages of spisific combining ability for all the study qualities.The highest values of average degree of dominance 2.04 for the number of seed / row quality. The highest values of brood sense heritability is 99.37 % for grain yield (ton / ha) .So I recommend to grow hybrids(2x5) and (5x8) in several seasons and different locations to find out their stability and then try to propagate the maternal lines by hybrid them and continuom production of hybrids. To mtilize lines ( 5 and 8 ) in the proving programmes to their supericurity in all traits. | ||
|
Statistics Article View: 204 PDF Download: 60 |
||