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Comparative study of the growth of commercial potato varieties (Solanum tuberosum L.) obtained from vegetative seedlings

Rios B.L.C.; Amante A.J.S.; Saravia Castillo G.; de Lourdes Tapia Y Figueroa M. · Australian Journal of Crop Science (2025) · DOI: 10.21475/ajcs.25.19.09.p350

Resumen

This study evaluated the development of four commercial potato varieties (Yungay, Tomasa, Amarilis, and Clon Bella) under controlled greenhouse conditions in the city of Huánuco. The main objective was to assess the variability in key characteristics such as root development, stem elongation, tuber formation, and minituber production, considering four treatments, with the Yungay variety as the control. Evaluations were carried out at 60 and 120 days after planting. Variables analyzed included the number of leaves, stem length (cm), fresh shoot weight (g), root length (cm), number and weight of tubers and minituber, and tuber diameter (mm), using a completely randomized design with 10 replications per treatment. Statistical analyses were conducted using ANOVA, followed by Tukey’s test for mean comparison. The results showed significant differences between the varieties. Tomasa exhibited better performance in terms of weight (10.04 g/tuber) and tuber diameter (1759 mm), suggesting a greater capacity for biomass allocation to storage organs. In contrast, the Yungay variety, used as the control, excelled in minituber production (62.20 minitubers/plant), highlighting its potential for seed propagation. Additionally, root length varied among the varieties, with Yungay (29.00 cm) and Clon Bella (26.00 cm) standing out in terms of root development. The latter also stood out in leaf development, with 91.13 leaves/plant and a stem length of 58.00 cm. These results emphasize the importance of considering the specific characteristics of each variety when selecting the most suitable for different agronomic objectives, such as maximizing tuber yield or nutrient use efficiency.

Instituciones: Universidad Nacional Agraria La Molina; Universidad de Huánuco