Effect of plant growth promoting bio-agents (Bacillus sp) on the production of potato (Solanum tuberosum) mini-tubers in north-western Himalaya

ASHWANI KUMAR SHARMA; E P VENKATASALAM; VINOD KUMAR

doi:10.56093/ijas.v84i4.39460

Authors

ASHWANI KUMAR SHARMA Central Potato Research Station, Kufri, Shimla, Himachal Pradesh 171 012
E P VENKATASALAM Central Potato Research Station, Kufri, Shimla, Himachal Pradesh 171 012
VINOD KUMAR Central Potato Research Station, Kufri, Shimla, Himachal Pradesh 171 012

https://doi.org/10.56093/ijas.v84i4.39460

Keywords:

Bacillus sp, Bio-agents, Micro-plants, Mini-tubers, Potato

Abstract

Two plant growth promoting bio-agents, viz. Bacillus cereus (B4) and Bacillus subtilis (B5) were evaluated for production of potato (Solanum tuberosum L.), mini-tubers from micro-plants two potato cultivars, viz. Kufri Giriraj and Kufri Kanchan (red skin tubers) under polyhouse conditions during the autumn (off) seasons of 2008 and 2009. Treatment of micro-plants with both the bio-agents (B4 and B5) proved significantly effective in improving the per cent ground cover, height of plants as well as haulms weight/plant in both the potato cultivars over control. However, no significant effect of these bio-agents was observed on establishment of micro-plants as well as on the number of shoots and compound leaves per plant. B4 bio-agent was found significantly superior in improving the ground cover and haulms weight/plant over B5. Number and yield of mini-tubers/m2 varied significantly between the cultivars and were significantly better with both the bio-agents over control.

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