Effects of reduced plant height on breeding requirements and ...

Orthogonal single degree <strong>of</strong> freedon comparisons were
employed to compare genotypes where desirable" Duncan,s
Multiple Range test was used to determine significance <strong>of</strong>
differences between treatment means atìd betlveen fertilizer
x genotype interaction means when a significant interaction
had occured.
This study vras conducted to deterrnine the effects <strong>of</strong>
varying row spacing and seeding rate on the yield and agron-
omie characteristics <strong>of</strong> tall and semi-dwarf barley genotypes.
Two genotypes were studied, one taIl, cv. ',Bonanza,,, and. one
semi-dwarf , Minn64-62.
A three replicate 2 x) x I factoríal experiment was
grown at three l-ocations in 19?6t t]ne G. Kabernick farm,
Sanford, Manitoba; the University <strong>of</strong> Manitoba Weed Research
site, Carman, Manitoba¡ and the University <strong>of</strong> Manitoba Crop
Research site, ttlinnipeg, Manitoba; with genotypes, seeding
rates, and row spacings the respective factors. Each geno-
type was tested at every combination <strong>of</strong> levels <strong>of</strong> factors
two and three in each replicate.
the three level-s <strong>of</strong> factor two (seeding rate) were the
number <strong>of</strong> germinable seeds equal to seeding rates <strong>of</strong> 56.0,
84.0 and LL?,A kg./ina. <strong>of</strong> Bonanza. The three levels <strong>of</strong>
factor three (row spacings) were 1J.0, 30.5 and 61.0 cn.
Plots were 6.1 meters long by 2.4 neters wíde having
16 rows at the narrowest, B at the internediate and 4 rows
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