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VOL. 2, ISSUE 1 (2026)
Comparative efficacy of dual-row on bed and hardened single-row transplantation for minituber seed production in Solanum tuberosum L. in U.P., India
Authors
Trilok Nath Rai, Kedar Nath Rai, Sanjeev Kumar Rai, Rajeev Kumar Rai, Mohit Singh
Abstract
Efficient planting systems are critical for enhancing seed
multiplication and productivity in potato (Solanum tuberosum L.) seed
production programs. The present study evaluated the effects of dual-row
transplantation on bed without hardening (DRTD) and hardened single-row
transplantation (HSRT) on plant establishment, growth, yield, tuber size
distribution, and seed multiplication efficiency of three potato cultivars
(Diamant, Asterix, and Valencia) under net house conditions during the 2023-24
and 2024-25 growing seasons. The experiment was conducted in a factorial
randomized design, and data were subjected to analysis of variance. Results
revealed that planting system, cultivar, and their interactions significantly
(P ≤ 0.05) influenced all major growth and yield attributes. Plant survival
exceeded 94% in both systems across seasons, with Diamant consistently showing
the highest establishment rate. The DRTB method produced significantly taller
plants, a greater number of stems per plant, and a higher number of tubers per
plant compared with HSRT. DRTB markedly increased the proportion of mini-tubers
in the desirable 5-30 g size range. HSRT favored early bulking and enlargement
of a limited number of tubers, likely due to physiological stress associated
with hardening, leading to a higher proportion of large tubers (>30 g). Such
larger tubers (>30 g) may harbor latent pathogens or viruses, thereby
increasing the risk of disease transmission to subsequent generations,
accelerating degeneration. Although hardened single-row transplantation (HSRT)
resulted in a higher total yield per acre, dual-row transplantation on bed
without hardening (DRTD) exhibited significantly greater seed multiplication
efficiency. Seed produced from one acre under DRTD was sufficient to cover up
to 10 acres in the subsequent generation, compared with only 8-9 acres under
HSRT. Among the evaluated cultivars, Diamant consistently showed superior
performance, followed by Valencia and Asterix. Overall, DRTD emerged as a more
efficient, cost-effective, and seed-oriented planting system than HSRT.
Adoption of this method can enhance mini-tuber production, reduce seed
requirements, increase land coverage, and improve the sustainability of
next-generation (pre-foundation) seed production, thereby contributing to lower
production costs and greater economic benefits for farmers and seed producers.
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Pages:8-17
How to cite this article:
Trilok Nath Rai, Kedar Nath Rai, Sanjeev Kumar Rai, Rajeev Kumar Rai, Mohit Singh "Comparative efficacy of dual-row on bed and hardened single-row transplantation for minituber seed production in <i>Solanum tuberosum</i> L. in U.P., India". World Journal of Research in All Subject, Vol 2, Issue 1, 2026, Pages 8-17
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