The original research relating to the topics on the reproductive ecology of Rzhizophora apiculate, R. mucronata, Lumnitzera racemose, Sciphyphora hydrophyllaceae (mangrove plant species), Maerua apetala, Mesua ferrea (tropical deciduous tree species), Asclepias curassavica, Dregea volubilis, Oxystelma esculentum, Brachystelma maculatum, Pergularia daemia, Tylophora indica, Catharanthus roseus, Rauvolfia serpentina (Apocynaceae species), Asystasia gangetica, Boerhavia diffusa and Boerhavia erecta (herb species) have been included. The pollinating efficiency of honeybee and bumblebee visits to Phaseolus vulgaris crop has been described. Further, details of results of phytochemical analysis and anti-bacterial activity of spices on gram positive and negative pathogenic bacterial isolated from commercial important edible marine fishes, Euthynnus affinis, Katsuwonus pelamis and Auxis thazard have been described. Contents: 1. Reproductive biology of some mangrove plant species/A.J. Solomon Raju. 2. Reproductive ecology of tree species Maerua apetala (Capparaceae) and Mesua ferrea (calophyllaceae) in the tropical deciduous forests of Eastern Ghats of Andhra Pradesh, India/S. Sravan Kumar. 3. Pollination aspects of some species of apocynaceae/A.J. Solomon Raju and K. Venkata Ramana. 4. The pollination efficiency of honeybee and bumblebee visits to the red kidney bean, Phaseolus vulgaris L./D. P. Abrol. 5. Reproductive ecology of asystasia gangetica (L.) T. Anderson (Acanthaceae), Boerhavia diffusa L. and Boerhavia erecta L. (Nyctaginaceae)/M. Divya Sree. 6. A study on phyto-chemical analysis and anti-bacterial activity of spices on pathogenic bacteria isolated from commercially important edible marine fishes, Euthynnus affinis (Cantor), Katsuwonus Pelamis L. and Auxis thazard (Lacepede) (Family Scombridae)/Swathi Patrata.