• Dr. Manik M. Dhore

Abstract The present paper deals with the study of flowering phenology,flower dynamics ,nectar production and chemical composition of Ixora coccinea L.(Rubiaceae). Ixora coccinea L. is an attractive plant cultivated as an ornamental plant. The flowering is throughout the year but the full bloom was observed during August to October and March to June. Flowers are in borne in dense corymbose cymes . The flowers are bright red with long ,slender corolla tube. Flowers produce small quantity of nectar. The amount of nectar from flowers was recorded after every two hour interval from 08.00-18.00hrs Flowers secreted on an average volume of nectar 2-3 µL.The nectar secretion was maximum in the morning hours. The average nectar sugar concentration was found to be 17-23%. Nectar is composed of presence of two sugars sucrose and fructose. Four amino acids were detected. Sunbirds, and butterflies were found to be the visitors of flowers. Sunbirds foraged throughout the day but peak foraging activity during morning hours. Sunbirds and butterflies foraged for nectar only.

Nectar ,Sugars, Ixora coccinea, Amino acids

"Nectar Dynamics and Chemical Composition of an Ornamental Plant Ixora coccinea L.(Rubiaceae)", International Journal of Emerging Technologies and Innovative Research (www.jetir.org), ISSN:2349-5162, Vol.10, Issue 5, page no.o417-o421, May-2023, Available :http://www.jetir.org/papers/JETIR2305F54.pdf

"Nectar Dynamics and Chemical Composition of an Ornamental Plant Ixora coccinea L.(Rubiaceae)", International Journal of Emerging Technologies and Innovative Research (www.jetir.org | UGC and issn Approved), ISSN:2349-5162, Vol.10, Issue 5, page no. ppo417-o421, May-2023, Available at : http://www.jetir.org/papers/JETIR2305F54.pdf