Abstract
A field experiment was conducted at ICAR- Krishi Vigyan Kendra, Thiruvarur, Tamil Nadu to study the performance of cassava varieties under irrigated condition. Three varieties included in the trial were local type, H-226 and Co (TP) 4. Observations on growth parameters and yield traits were recorded during the experiment period from 2013 to 2014. The results revealed that the cassava variety Co (TP) 4 recorded higher values for plant height (224.3 cm), number of primary branches per plant (3.8), number of secondary branches per plant (5.7), stem girth (8.8cm), number of leaves (99.6), number of tubers per plant (14.2), length of tuber (32.5 cm), girth of tuber (15.6cm), single tuber weight (274.6 gm), tuber yield per plant (8.1 kg), tuber yield per hectare (48.6 t/ha) and starch content (28.6%) followed by the variety H-226. The least values for the characters studied were recorded in local adopted check variety. The highest gross returns, net return and B:C Ratio of Rs. 194400/ha, Rs. 129400/ha and 3.0, respectively were realized with Co (TP) 4 as compared to other two verities under evaluation in Thiruvarur condition.
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