Vol. 11, Issue 6 (2022)

Author(s):
Raghavendra Naik, NC Narase Gowda, B Mohan Raju, Srinivasappa KN and Srikant Tengli

Abstract:
Production of early generation potato seed-tubers from virus free planting materials through aeroponics help to supply quality seed materials for commercial growers wherever seed tuber production was not possible. Aeroponics production of seed tubers mainly depends on nutrients, season, environmental factors etc. Potato seed tuber production in kharif by encountering the minimum environmental standards help to produce additional seed-tubers for cultivation (15.06 tubers per plant in kharif as against 22.94 tubers per plant in rabi). Root zone cooling helps to increase the seed-tuber production (22.22 mini-tubers per plant in root zone cooling as compared to 15.78 seed-tubers per plant in control). The reduction of light by shade treatment adversely affected on plant growth, tuberization and nutrient uptake. The number of tubers per plant was reduced to 17.55 in shade treatments as compared to 20.45 tubers per plant in without shade (control). The interactions among season × shading and root zone cooling × shading were studied.