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Production of healthy yacon seedlings and crop development in the region of Ribeirão Preto, SP, Brazil.

Grant number: 23/17609-0
Support Opportunities:Research Grants - Innovative Research in Small Business - PIPE
Duration: May 01, 2024 - January 31, 2025
Field of knowledge:Agronomical Sciences - Agronomy - Crop Science
Principal Investigator:Rita Maria Borges de Moraes
Grantee:Rita Maria Borges de Moraes
Host Company:Santa Martha Jardins Ltda. - ME
CNAE: Cultivo de plantas de lavoura temporária não especificadas anteriormente
City: Ribeirão Preto
Pesquisadores principais:
Miriam Verginia Lourenço
Associated scholarship(s):24/06539-3 - Production of healthy yacon seedlings and crop development in the region of Ribeirão Preto, SP, Brazil, BP.PIPE


The functionalities of yacon roots are linked to the high content of fructooligosaccharides (FOS), which are sugars not metabolized by digestive system and are transformed into soluble fibers, being beneficial to intestinal lactobacilli and bifidobacteria, thus promoting healthy digestion while it maintains the colon's health. Yacon products, such as syrup and flour, can be consumed as a natural sweetener by diabetics without altering blood glucose. The concentration of FOS and phenolic compounds in yacon juice, syrup and flour are directly linked to the quality of the storage roots, which depend on the period and cultivation system, post-harvest care and mainly on processing stages. Higher production necessarily involves the availability of healthy seedlings. The production of seedlings through rhizophores, although it is the most used method, has some drawbacks: a) it reduces the possibility of using them as animal supplements; b) can be a source of pests and diseases; c) may lead to lower potato yield as it promotes large production of rhizophores. Thus, the objective of this project is to determine a protocol for obtaining yacon seedlings, through micropropagation, enabling the generation of healthy seedlings with high yield. Yacon mother plants, grown at the Santa Martha nursery, will serve as a source of explants for the beginning of in vitro cultivation. The establishment of the appropriate asepsis process, as well as the cultivation media that provide a greater number of shoots/lateral bud and in vitro rooting rate will allow the multiplication of seedlings that will be acclimatized in trays. This will allow the supply of seedlings to partner farmers for yacon production thus the chain products to expand, to spread to other regions of the country and more people benefiting of the functional properties. (AU)

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