PJB-2014-236
PHYTOTOXIC EFFECTS OF SAFFLOWER YELLOW EXPOSURE ON SEED GERMINATION AND EARLY SEEDLING GROWTH OF CANOLA (BRASSICA NAPUS L.)
FAIZAN ULLAH1*, ATIF ULLAH1, SULTAN MEHMOOD WAZIR1 AND ZABTA KHAN SHINWARI2
Abstract
The aim of current investigation was to determine phytotoxic effects of safflower dye (safflower yellow) on seed germination and early seedling growth of canola (Brassica napus L.) cv. Rainbow. Safflower yellow was extracted in autoclaved distilled water and was applied at various concentrations (0.312%, 0.625%, 1.25%, 2.5% and 5%) to canola seeds in petri dishes under axenic conditions. Phenolics content was detected in dye solutions and was maximum (53 mg gallic acid/g extract) in 5% dye solution. The growth rate of canola was decreased with the increase of safflower dye concentration (p
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