General (OCA) and specific (SCA) coinbimng abilities and their
interaction with scar were investigated in one set of F’s among eight inbrceds lines
Significant OCA was dcicctcd in the combined analysis for most of thc trails except
for the date of mid-silking. Also, significant SCA was detected for all trails with
the exception of car height, car length and mid-tassclling date Both GCA.ycar
and SCA.ycar were significant only for mid-silking date. plant height and numbcr
of kernels/row. Calculated ratios of GCA.year/GCA was higher than the ratio
GCA.ycarISCA for mid-silking datc indicating (bal the additive and additive b
additive effects were highly influenced by year for this Irait As for plant height
and number of kernels/row, the ratio SCA.vcar/SCA was higher than
GCA.year!GCA indicating that thc non-additive effects were more influenced b
year. Significant OCA by year interaction was detected for mid-lassclling date. On
the contraiy, significant SCA by year interaction was detected for car diameter and
grain yield/plant. |
