Vol. 11, Special Issue 2 (2022)

Author(s):
Harshraj Kanwar, Pradeep Singh Shekhawat and Brajnandan Singh Chandrawat

Abstract:
Stripe rust of barley caused by Puccinia striiformis f. sp. hordei (Psh), is an important disease in barley growing regions of India and worldwide. The effect of plant age on the development of stripe rust in barley was studied on susceptible cultivar RD2035 under artificial disease inoculation condition in cage house. For identifying plant age susceptible to stripe rust, five staggered sowing at 10 days interval during 2016-17 and 2017-18. Maximum stripe rust severity was observed in the plants ageing 25 DAS with PDS 80.57. However, plant age of 65 DAS exhibited minimum PDS 11.27. The present finding showed that the per cent rust severity decreased with increased plant age. The youngest plant groups showed more vulnerability to rust infection with highest percent rust severity, minimum incubation period and latent period as compare to older one.