Agro-techniques for Production of Seed Size Tubers in Conventional Seed Potato Production System–A Review

Abstract

The seed potato cost is very important component in total potato production and account for 30 to 70% which varies depending on the country or region. Tuber size is an important factor to decide the seed requirement per unit area. Seed size affects total yield, graded or marketable tuber yields. Standard seed tuber of 25–125 g weight (30–55 mm) is known as seed size tubers in India. Obtaining seed size tuber is important for achieving higher potential of the cultivars. The tuber size profile can be reduced or expanded by altering inter and intra row seed spacing, controlling days of growth by planting late or killing vines/haulm early, regulating inputs like fertilizer and water etc. An ideal combination of plant population, row width, and in-row seed spacing for a particular variety were the major factors for optimizing tuber size. Variation in tuber bulking ability in different genotypes results in variation in proportion of seed size tubers among different varieties. 70–80 days haulm killing found most suitable for getting higher proportion of seed size tubers in high bulking varieties. Proper management of N, P and K fertilizers is considered very important to maximize tuber yield and attain desirable quality. Variability in nitrogen dose/ha was observed which ranged from 100–150 between different regions of the world. Hence proper combination of above Agro-techniques should be adopted in seed production programme as per the region for getting higher proportion of seed size/plantable seed tubers.

Performance of Short-duration Potato (Solanum tuberosum L.) Hybrids and Varieties for Growth and Yield Attributing Characteristics in Chambal Region of Madhya Pradesh, India

“…(670 thousand/ha) over the other three varieties [22]. Also supported by Sadawarti et al [30] who noted that the mean total tuber number found maximum in the variety Kufri Sindhuri (648 thou/ha) over Kufri Chandramukhi and Kufri Chipsona-1 when planted under west-central Indian condition this for seed production. Similar variations among different genotypes were also recorded in current findings.…”

Elements Affecting Seed Potato Quality In India- A Review

“…Potato crop needs to get enough intra and inter row spacing to allow maximum inititation of number of stems / plant as well as an optimum number and better quality tuber formation. The optimizing of plant density is one of the most important subjects of potato production management because it affects seed cost, plant development, yield, and quality of the crop (Bussan et al, 2007, Sadawarti et al, 2021b). An ideal combination of plant population, row width, and in-row seed spacing for a particular variety were the major factors for optimizing tuber size (Rex and Mazza, 1989).…”

“…Sustainable potato production depends on constant renewed supply of disease-free planting material, improving quality seed production and seed distribution. Under potato, cultivation, seed is the highest cost-bearing input accounting for 40-50% of the total cost of its cultivation (Venkataslam et al, 2011, Sadawarti et al, 2021aBuckseth et al, 2022). Poor seed quality, lack of availability, limited access to high-quality seed, lack of access to preferred and adapted varieties, and inefficient seed systems is the major problem in higher productivity in potato (Anonymous, 2016;Singh et al, 2016;Bentley et al, 2018).…”

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“…A study by M.J. Sadawarti et al (2021) established the effect of seed tuber size on the overall yield and output of commercial tubers. In the paper of S. Ebrahim et al (2018), a research on the effect of seed tuber size (fractions 25-54, 35-45, and 46-55 mm) on the productivity of three potato varieties Gudenie, Jalene, and Kellacho in Ethiopia is presented.…”