Nagarajaiah, C.CHETHAN, M. S.2020-10-062020-10-062019-08-30Th-12445https://krishikosh.egranth.ac.in/handle/1/5810152525The study on ‘Evaluation of agroforestry systems under Cauvery water basin of Tumkur district’ was conducted during the 2018-19 in Cauvery water basin of Tumkur district comprising of five taluks viz., Tumkur, Gubbi, Turuvekere, Kunigal and Tiptur. Bund and boundary plantings were the major traditional agroforestry systems practiced by the farmers whereas Horti-silviculture system was the major agroforestry system followed by large farmers. The crop productivity with respect to grain and straw yields of finger millet under neem and teak based different agroforestry systems were documented lower compared to control. The cost-benefit ratio under agroforestry systems reported to be higher in association with other field crops further Horti-silviculture system recorded higher cost benefit ratio compare to other agroforestry systems. Higher carbon sequestration potential was observed in agroforestry systems than the conventional agriculture. Tree numbers was positively correlated with farm holding size and type of agroforestry systems followed by the farmers. Shannon’s diversity index was higher with large farmer followed by medium and small farmer. 19 tree species belonging to 12 plant families with 68.42 percent of trees being indigenous were recorded in study area. Tectona grandis was the most dominant tree species followed by Grevillea robusta, Azadirachta indica and Cocos nucifera. The agroforestry systems following farmers’ integrated trees in their farms based on their preferences such as economic benefit, multipurpose utility of the trees and cultural preference of the locality based.EnglishThesis