Global Journal of Agricultural Research (GJAR)

EA Journals

U-14C-Glucose.

Sugar and Β-Carotene Accumulation in Carrot (Daucuscarota L.) Tap Roots As Influenced By Fertilization and Bio-Stimulant Application under Greenhouse Conditions (Published)

Greenhouse study was carried out to evaluate β-carotene and sugar accumulation in carrot tap roots, at harvest, after treatment with different fertilizer levels either separately or in combination with two commercial bio-stimulants, ComCat® and Kelpak®. Four fertilizer levels included standard recommended NPK level (100%) as well as 50%, 25% and 0% of standard. Foliar application of bio-stimulants was according to recommendations by the manufacturers. Treatments were replicated five times in complete randomized block design.  Translocation of sugar was followed by labelling leaves with U-14C-glucose. Both β-carotene and sucrose content increased more or less linearly with increasing fertilization, but most significant increase was observed when carrots were treated with combination of ComCat® at 50% of standard fertilizer rate.  In the case of sucrose this was in concert with a significant increase in the translocation of radio-activity from the leaves to the roots where ComCat® was applied in combination with higher fertilizer regimes.  Glucose and fructose levels fluctuated rather inconsistently. Kelpak® had no effect on β-carotene content and had inhibitory effect on sucrose content.

Keywords: Bio-Stimulants, Carrot, Fertilizer Levels, Sugar, U-14C-Glucose., β-Carotene

Scroll to Top

Don't miss any Call For Paper update from EA Journals

Fill up the form below and get notified everytime we call for new submissions for our journals.