Vol. 12, Issue 8 (2023)

Author(s):
Rohit Kumar, Shahnashi Hashmi, HS Negi, G Kaur, Vivek Singh and Pradeep Kumar Verma

Abstract:
ThePotato (Solanum tuberosum L.) ranks fourth in the world in terms of importance following wheat, maize and rice. Potato is a rich and balanced source of starch, vitamins and different minerals for many communities in almost all over the world. One of the main reasons of low productivity of potato is the late blight disease incited by Phytopthora infestans. For this study local variety (3797) was used and grown at the Organic Research Farm, Karguanji, Department of Plant Pathology, Institute of Agricultural Sciences, Bundelkhand University, Jhansi campus during rabi 2021-22. Different Trichoderma spp. and plant extracts was used to observe its effect on plant growth and yield characters. The maximum tubers yield (12.90 t/ha) was recorded in treatment T₁- Trichoderma viride and minimum tubers yield (8.69 t/ha) was recorded in control treatment. Among plant extracts, maximum tuber yield (12.61 t/ha) was found with Tulsi leaf extract treated plots. Thus, this investigation showed that bio-agents and plant extracts are highly effective in combating late blight of potato and it may be a better alternative in place of chemical for sustainable agriculture.