ANALYSIS OF
COMBINING ABILITY AND GENE ACTION OF FIELD CORN THROUGH LINE × TESTER METHOD
Authors: A. Ahmed*,
M. Amiruzzaman, S. Begum, M.K. Alam and
M.M. Rohman
*Corresponding
Author; E-mail: asgar.gene@gmail.com
Abstract
Seven S3
lines
of commercial hybrid 7074 were crossed with 3 testers in a Line × Tester mating
design and the resulting 21 crosses along with the parents and standard checks,
BARI Hybrid Maize 9 (BHM 9) and NK 40, were evaluated in a alpha lattice design
replicated twice, during rabi, 2014-15. The preponderance of non-additive gene
action in the expression of the traits was found. Among the parents 7074/S3-1, 7074/S3-5, 7074/S3-8,
7074/S3-11 and testers
BML-36 and CML-425 were good general
combiners for grain yield and some of the important yield contributing
characters (days to tasseling, days to silking, plant height, ear height, ear
length, grains/ear and 1000 grain weight). The crosses 7074/S3-1×BML-36, 7074/S3-5×CML-425, 7074/S3-1×BML-36, 7074/S3-8×CML-425 and 7074/S3-11×BML-36 showed high SCA effects for grain yield along
with high mean could be used for commercial hybrid development.
Key words: Combining ability,
gene action,maize corn, line × tester method.
Download PDF: Click here
Return Volume: Journal of Experimental Biosciences 6(2): July 2015
