Vol. 15 No. 2
Effect of nutrients and growth regulator on growth and leaf yield of offseason coriander, Coriandrum sativum L.
Author(s): R. CHITRA AND N. SHOBA
Abstract: Coriander is a dual purpose crop grown for green leaf as well as for seed. It is one of the earliest known spices by mankind grown for its leaves, seeds, essential oil and oleoresin. The green leaves are consumed as fresh herbs, in salads and as garnishes due to its attractive green colour and aroma. Growing of leafy coriander in off-season (summer) fetch premium price in the market. The investigation was under taken to study the effect of nutrients and growth regulator on growth and leaf yield of off season coriander in Randomized Block Design with three replications during the year 2012-13 and 2014-15. Among the various treatments, application of 45:40:20 kg of NPK ha-1 (T3) recorded the highest plant height (34.09 cm). The highest leaf yield was recorded by the treatment T6 (30:40:20 NPK+ GA3 15 ppm at 20 DAS) (4824 kg ha-1) with highest B: C ratio of 2.37 followed by the treatment T8 (45:40:20 NPK+ GA3 10 ppm at 20 DAS) (4448 kg ha-1). Among the different treatments, the treatment T6 (30:40:20 NPK+ GA3 15 ppm at 20 DAS) recorded the highest essential oil content (0.023%) and oleoresin content (7.67%) followed by T8 (45:40:20 NPK+ GA3 10 ppm at 20 DAS) (0.021% and 7.45% respectively) and T1 (control) noticed the lowest content of essential oil (0.013% and 5.01% respectively).
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