Evaluación de diferentes proporciones de sustratos en el crecimiento de plántulas de uvilla (Physalis peruviana)

Abstract

Substrates are of great importance to achieve a good development of seedlings, because they allow them to develop a good root system in order to obtain a better quality. The cape gooseberry (Physalis peruviana) is a fruit species from the Andean territory that is considered a wild fruit, since its seeds are more easily propagated. In the present work, the effect of different proportions of substrate on the development of cape gooseberry seedlings was evaluated in order to determine the treatment that would allow obtaining better quality plants with desirable characteristics. Six treatments were evaluated: T1 (agricultural dream 100%), T2 (agricultural soil 50% + guinea pig manure 50%), T3 (agricultural soil 40% + sawdust 20% + rock flour 40%), T4 (sand 50% + rock flour 30% + sawdust 20%), T5 (agricultural soil 70% + sawdust 30%) and T6 (agriculturalsoil 70% + rock flour 30%). A completely randomized block experimental design with three replications was used. The variables evaluated were plant height, number of leaves, stem diameter, root length and percentage of useful plants. Data were collected 30, 40, 60 and 80 days after planting. The best treatments were T1 (agricultural soil 100%) and T6 (agricultural soil 70% + rock flour 30%). The variable number of leaves, an average of 3.53 was recorded at 30 days and 5.17 at 80 days, with a difference of 1.64 leaves. Plant height was 1.03 cm at 30 days and 4.53 at 80 days. The stem diameter variable showed a difference of 0.09 cm from day 40 to day 80. For root length, mean values were 7.99 cm at 40 days and 15.58 cm at 80 days, with a difference of 7.59 cm. The percentage of useful plants was 53% with treatment T1. It is concluded that there is an influence of the different proportions of substrates on the growth and development of seedlings.