Nine plant development parameters were measured on five six-leaves stage plants per plot (25 plants per treatment). The monitoring of root development was based on root dry biomass and root system architecture via the quantification of total root length, surface, and number, as well as average root diameter (WinRHIZO; Regent Instruments Inc., Québec City, Canada). The monitoring of shoot development was based on shoot dry biomass and stem diameter at the root collar, and on foliar morphology via the quantification of the length and average width of the fifth leaf from the shoot bottom (WinFOLIA; Regent Instruments Inc.). Data obtained with formulation F2 have been reported by [20 (link),21 (link)].
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