Effects of hormones, growth regulators and dormancy breaking chemicals on the seed germination of Ocimum spp

Abstract :

Influence of genotype and environmental factors on the oil production of four ecological variants of the medicinal shrub, Gaultheria fragrantissima was evaluated across four sholas in Nilgiris of Western Ghats, India. The ovate leaf type variant of this species produced significantly higher content of oil (1.13%) than the lanceolate (0.96%), elliptic-lanceolate (0.91%) and oblanceolate (0.92%) leaf type variants. The oil production performance was more influenced by genotype than environmental factors and by the interaction of genotype and environmental factors. Among the four sholas studied the Ebbenadu shola is most suitable for the growth of high oil containing ovate leaf type variant of G. fragrantissima with respect to oil production.