Influence of Potato Cyst Nematode Infestation in Different Potato Varieties Sudha R.1,*, Venkatasalam E.P.1, Mhatre Priyank H.1, Bairwa Aarti2, Divya K.L1 1ICAR-Central Potato Research Station, Muthorai, Ooty-643 004, The Nilgiris, Tamil Nadu, India 2ICAR-Central Potato Research Institute, Shimla-171 101, HP, India *Corresponding author, E-mail: rsudhahort@yahoo.co.in
Online published on 29 August, 2017. Abstract The influence of potato cyst nematode (PCN) on plant growth and yield parameters, its pathogenic potential and reproduction fitness on popular potato cultivars of Nilgiris was studied in field. The final population of cysts increased in the susceptible cultivars viz. Kufri Jyoti, Kufri Girdhari and Kufri Himalini with reproductive factor of 1.16 to 1.21. However, in the resistant cultivar, Kufri Swarna the reproductive factor remained low (Rf-0.97). Higher tuber yield was also recorded in cultivar Kufri Swarna (22.73 t/ha) compared to the other susceptible cvs. Kufri Girdhari, Kufri Himalini and Kufri Jyoti. Hence, growing of resistant potato cultivar Kufri Swarna in infested areas could be an effective PCN management strategy in the Nilgiris. Top Keywords Potato cultivars, Globodera species, resistance, reproduction factor, yield. Top |