The slope of the regression (Fig. 4) was significantly lower (P < 0.001) in Sieglinde than in Spunta (b = 5.0 versus 8.9 in the first planting and 6.2 versus 11.6 in the second planting).
The slope of the regression (Fig. 4) was significantly lower (P < 0.001) in Sieglindethan in Spunta (b = 5.0 versus 8.9 in the first planting and 6.2 versus 11.6 in thesecond planting).