Overcoming dormancy and establishment of normal and abnormal seedlings for seedling production of Ochroma pyramidale (Cav. ex Lam.) Urb

Autor: Bao, Francielli [UNESP], Da Rocha, Maíra, De Oliveira, Maiby Teodoro, Bambil, Deborah, Luz, Petterson Baptista
Přispěvatelé: Universidade Estadual Paulista (UNESP), Instituto Nacional de Pesquisas da Amazônia, Universidade Federal de Santa Catarina (UFSC), Universidade Federal de Mato Grosso do Sul (UFMS), Universidade Do Estado de Mato Grosso
Jazyk: portugalština
Rok vydání: 2016
Předmět:
Zdroj: Scopus
Repositório Institucional da UNESP
Universidade Estadual Paulista (UNESP)
instacron:UNESP
Popis: Made available in DSpace on 2022-04-28T19:07:03Z (GMT). No. of bitstreams: 0 Previous issue date: 2016-12-01 Ochroma pyramidale (Cav. ex Lam.) Urb has great economic importance due to fast growth have, tegument dormancy, and variation in the germination process, where dormancy overcoming is fundamental in the study of seedlings. The aim of this study was to describe the external morphology of early stage development and test pre-germination treatments with hot water and sulfuric acid, under presence and absence of light, at different temperatures, as well, as to assess the establishment of normal and abnormal seedlings. For this there were five methods of scarification, three conditions of temperatures associated with two light regimes, and in nursery; the establishment of normal and abnormal seedlings was evaluated. Germination was classified as epigeal phanerocotylar, the treatment with immersion in water 80°C and H2SO4 120 was the most suitable to overcome dormancy, the optimal temperature was 30°C. Normal and abnormal seedlings have high capabilities of establishment. Universidade Estadual Paulista Júlio de Mesquita Filho Instituto de Biociências, Av. 24A, 1515 Instituto Nacional de Pesquisas da Amazônia Departamento de Botânica, Av. André Araújo Aleixo Universidade Federal de Santa Catarina Departamento de Botânica, Rodovia Ademar Gonzaga, 1346 Universidade Federal de Mato Grosso Do sul PPG Biologia Vegetal, Av. Costa e Silva Universidade Do Estado de Mato Grosso Departamento de Agronomia, Av. Santos Dumont Universidade Estadual Paulista Júlio de Mesquita Filho Instituto de Biociências, Av. 24A, 1515
Databáze: OpenAIRE
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