Open AccessPRODUÇÃO DE MUDAS A PARTIR DE MINIESTACAS DE 38 VARIEDADES DO CRUZAMENTO DA BATATA-DOCE LONDRINA E URUGUAIANA
Author(s) -
Amarílis Beraldo Rós,
Andréia Cristina Silva Hirata
Publication year - 2018
Publication title -
colloquium agrariae
Language(s) - English
Resource type - Journals
ISSN - 1809-8215
DOI - 10.5747/ca.2018.v14.nesp.000253
Subject(s) - cutting , transplanting , horticulture , completely randomized design , cultivar , biology , crop , mathematics , agronomy , sowing
Sweet potatoes are a very important crop and genetic improvement works are necessary. Eachplant originated from a botanical seed is a new cultivar, being important its multiplication. Theobjective of this work was to evaluate the production of sweet potato seedlings from mini-cuttingsfrom different varieties from the same parents. The treatments consisted of mini-cuttings of 38varieties and of their Londrina and Uruguaiana parents. The experimental design was inrandomized blocks, with three replications. The following characteristics were evaluated:percentage of mini-rooted cutting and survival of seedlings after transplanting. The average minirootedcuttings was 91.4%. The survival rate in the field was above 99%. However, there wasdifference among the varieties mainly regarding the mini-rooted cuttings (values between 100%and 62.9%). It was concluded that the production of seedlings from mini-cuttings is a viable toolfor genetic material multiplication from Londrina and Uruguaiana varieties crossing in programs ofimprovement.