Effect of plant growth regulators on oil yield and biodiesel production of safflower (Carthamus tinctorius L.)

AUTOR(ES)

Ullah, Faizan, Bano, Asghari

FONTE

Brazilian Journal of Plant Physiology

DATA DE PUBLICAÇÃO

2011

RESUMO

The aim of the present investigation was to determine the effect of plant growth regulators viz., kinetin, chlorocholine chloride (CCC) and salicylic acid (SA) on achene yield and oil quality of safflower (Carthamus tinctorius L.) cv. Thori pertaining to biodiesel production. The growth regulators were applied at 10-5M as foliar spray during flowering (140 days after sowing). Kinetin was highly effective in increasing achene yield, 100 achene weight and oil refractive index. Maximum achene oil content was found in CCC treatment. Kinetin and CCC significantly decreased oil acid value, free fatty acid content (% oleic acid) and specific gravity but increased oil pH. Kinetin was highly effective in increasing oleic acid (C18:1) but decreased the content of linoleic acid (C18:2). Oil extracted from achenes of CCC and Kinetin treated plants exhibited maximum (92%) conversion into methyl esters.

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