The effect of salinity on biomass accumulation and chlorophyll fluorescence in plants of three cultivars of ornamental amaranth
2007
Wrochna, M. | Gawronska, H. | Borkowska, B. | Gawronski, S.W.,Szkola Glowna Gospodarstwa Wiejskiego, Warszawa (Poland). Samodzielny Zaklad Przyrodniczych Podstaw Ogrodnictwa
The aims of this work were to study the effect of de-icing salt on three cvs. of Amaranthus sp. plants by determination of (i) biomass production and (ii) selected parameters of chlorophyll fluorescence. Ten-week-old hydroponically grown plants of Amaranthus sp. cvs. Cooper Mountain, Monarch, and Pony Tails were exposed for 16 days to 0 (control), 1 and 3 g salt/cubic dm used for de-icing roads. Growth of plants of all cvs was inhibited and their both fresh and dry weights were reduced. Shortly after exposure (1 day) Fv/Fm and Yield were greater than in control but along with exposure to salt the efficiency of photosynthetic apparatus was lowered, which well corresponds to the reduced biomass production
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