The maize genotypes did not affect significantly the
1000-grain weight (Table I). Irrigation levels varied
significantly from one another regarding 1000-grain weight.
Application of 6 irrigations showed significantly the
maximum 1000-grain weight (275.21 g) whereas the
application of 4 irrigations produced the minimum 1000-
grain weight (153.9 g). These results are in confirmation
with those of Quaranta et al. (1998). The interaction
between varieties and irrigation levels was significant
(Table I).
All maize genotypes produced similar grain yield.
Different irrigation levels significantly affected the grain
yield (Table I). The application of 6 irrigations produced
significantly the maximum grain yield (6.48 t ha-1) while the
lowest grain yield (2.17 t ha-1) was obtained in case of 4
irrigations. These results are in agreement with those of
Quaranta et al. (1998), Sheikh (1999) and Vicente et al.
(1999). The interaction between factors under study was
non-significant. The biological yield was statistically similar in all the
genotypes (Table I). The biological yield varied
significantly with regard to various irrigation levels. The
application of 6 irrigations produced significantly the
maximum biological yield (20.04 t ha-1) which was
statistically at par with 7 irrigations (9.62 t ha-1). The
interaction between genotypes and irrigation levels was
found to be non-significant.
The maize genotypes did not exhibit a significant
effect on harvest index (Table I). Application of different
irrigation levels resulted in different harvest indices (Table
I). The application of 6 irrigations produced significantly the
maximum harvest index (35.58%) whereas the minimum
harvest index (16.89%) was given by application level of 4
irrigations. The interaction between genotypes and irrigation
levels was significant.