Effect of different size of seed tubers on production of small seed tubers of potato

An experiment was conducted to study the effect of seed size tubers on production of 10–20 g seed tubers of potato (Solanum tuberosum L.). The highest number of small (10–20 g) tubers (7.1 lakh/ha) and tuber yield (124 q/ha) were recorded with 50–60 g planted tubers which were significantly higher over 10–20, 20–30 and 30–40 g planted tubers. Total number of tubers (15.37 lakh/ha) was highest with 40–50 g planted seed tubers. However, total tuber yield in different treatments was on par. Highest net return of 58,477 per ha was recorded with 10–20 g planted seed tubers. Benefit: cost ratio (1.9) and return/rupee spent (0.9) was also highest within the same treatment. The planting of 10–20 g tubers reduced cost of cultivation, increased net return (58.48 x 10³) with benefit: cost ratio 1.9 and net return/rupee spent (0.9).