Abstract:
In order to determine the
effects of different fertilization level of zinc
sulphate and plant density on the breakage
susceptibility of triticale seeds an
experiment was conducted during 2011
growing season, at the experimental
research station of Lorestan University,
Iran. A factorial experiment was conducted
with 3×3 treatments and three replications in
a completely randomized block design
(CRBD). Factors included three plant
densities (200, 300 and 400 plants/m2) and
three levels of zinc sulphate (0 - control, 40
and 60 kg/ha). The harvested seeds were
then subjected to impact energies of 0.05
and 0.1 J at constant moisture content of
15% using an impact test apparatus. The
analysis of variance showed that
fertilization level of zinc sulphate (at the 1%
probability level), plant density (at the 5%
level) and interaction between two variables
(at the 5% level) significantly influenced
breakage susceptibility of triticale seeds.
The average values of percentage breakage
of seeds decreased from 32.592 to
16.9268% as the fertilization level of zinc
sulphate increased from 0 to 60kg/ha. As the
plant density increased from 200 to 400
plants/m2 the percentage breakage of seeds
decreased from 27.942 to 21.350%.
Increasing the impact energy from 0.05 to
0.1 J caused an increase in the percentage
breakage of seeds from 14.07 to 36.9%.
