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Table 5.

ANOVA inter-plots for 4 modes of Pl resistance gene management to Plasmopara halstedii on the aggressiveness data measurements carried out on the sunflower inbred lines “FU” and “BT” (4 replications per plot that correspond to 4 strains of pathotype 710).

Plots Percentage infection (%)
Length of latent period (days)
Sporulation density (no. sporangia/cotyledon)
Length of the hypocotyl (mm)
FU BT FU BT FU BT FU BT
Reference
   Mean 99.3a 100.0a 9.5a 8.2a 7.04 105b 9.27 105b 38.8a 34.0a
   Standard deviation 0.5 0.3 0.1 0.83 0.35 1.3 1.3

MixtureH1234
   Mean 99.7a 100.0a 8.8b 8.4a 10.56 105a 11.21 105a 36.3a 27.3b
   Standard deviation 0.3 0.1 0.3 1.03 1.40 4.6 1.5

Alternation
   Mean 99.7a 100.0a 8.8b 8.0a 7.08 105b 9.52 105b 35.8a 26.4b
   Standard deviation 0.5 0.2 0.1 0.64 0.40 2.3 1.2

MonocultureH2
   Mean 98.7a 100.0a 9.4a 8.1a 6.50 105b 8.14 105b 36.3a 32.8a
   Standard deviation 1.2 0.2 0.1 0.42 0.40 0.9 3.8

According to the Newmans-Keuls test means followed by the same letter (“a” or “b”) are not significantly different at P = 0.05

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