author(s)
Muhammad Bilal, Khadija Javed and Humayun Javed

abstract
The present study was conducted at University Research Farm Koont, during the year 2014. Six brinjal cultivars were tested for their host suitability against the Jassid. The results revealed that maximum number of nymphs and adult were observed on Giant Round cultivar with 0.35 and 1.35 per leaf respectively. The minimum population of nymphs and adult were observed on Pusa Purple Long with 0.01 and 0.01 per leaf respectively. According to physico-morphic characters the maximum numbers of hairs on leaf lamina and leaves midrib were recorded on Pusa Purple Long cultivar with 279.00 and 72.25 cm2 and minimum on Giant Round with186.75 and 23.00 cm² respectively. Highest plant height was noticed on Pusa Purple Long with 61.92 cm while the minimum brinjal plant height was observed on Giant Round i.e. 44.59 cm. Brinjal plant stem girth on Giant Round was higher with 54.70 cm and minimum on Pusa Purple Long with 28.42 cm. Maximum yield was observed on Pusa Purple Long with 0.42 kg while the Giant Round had low yield of 0.04 kg. So Pusa Purple Long has been recommended for the cultivation in the Pothwar region.