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66 Agricultural Science

Fig. 18. Evolution of chlorophyll fluorescence (FPER: pericarp, FPAP: pappus), dry weight, water content at harvest, germination percentage and germination rate of chicory seeds at each maturation duration on the stalk from 16 to 44 days after flowering. Means with

The two following facts are in favour of the use of CF features for the differentiation of

 the end of the filling phase corresponded to the physiological maturity, where themaximal germination percentage and vigour is attained (Black et al., 2008).

On the other hand, the efficiency of CF features may be negatively affected by the large

Current work aims at estimating the correlations between the CF features, the weight parameters and the germination variables in outdoors and greenhouse environments, and to assess the added value of CF features in comparison to weight, size and density features to

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**6. Conclusion** 

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