Navegando por Autor "Rentschler, Luana Lopes Assumpção"

Agora exibindo 1 - 1 de 1
  • Imagem de Miniatura
    Dissertação
    Acesso aberto (Open Access)
    Qualidade fisiológica e uso de extratos e óleos essenciais vegetais no controle de Alternaria spp. em sementes de cenoura
    (Universidade Estadual do Norte do Paraná, 2014-06-27) Rentschler, Luana Lopes Assumpção; Bueno, João Tavares; http://lattes.cnpq.br/2889380559858950; Lima, Cristina Batista de; https://orcid.org/0000-0002-6076-4286; http://lattes.cnpq.br/3072842301542197; Lima, Cristina Batista de; https://orcid.org/0000-0002-6076-4286; http://lattes.cnpq.br/3072842301542197; Takahashi, Lúcia Sadayo Assari; https://orcid.org/0000-0001-6513-7591; http://lattes.cnpq.br/6336397622963573; Tashima, Hatiro; https://orcid.org/0009-0008-8757-4600; http://lattes.cnpq.br/0514640010249563
    Carrot is one of the most economically important vegetable crops in Brazil, the main way of spreading the seeds. Thus, assure the physiological and sanitary quality of seeds is essential to ensure the establishment of a suitable stand, and get satisfactory performance culture. The present work had the purpose to analyze how the carrot seed physiological quality and the use of plant extracts and essential oils in control of Alternaria alternata and Alternaria dauci. The first study consisted of seventeen commercial batches subjected to the following tests: germination, first count, determination of water content in traditional and accelerated aging with saline (NaCl and KCl), and seedling emergence in tray and directly raised. This study evaluated the physiological quality and it was concluded that the physical appearance of the soil influence the emergence of seeds and the accelerated aging test with saline sodium chloride is effective to evaluate the physiological conditions using samples with four grams to determine the level of post-aging moisture to reduce the variation between batches. In the second study, five lots of carrot seeds were treated with aqueous extracts of garlic, coriander, pepper and essential oils of neem and orange peel in different concentrations, assessing the relationship to Alternaria, incidence, the location in different parts of the seeds and the cause of overturning. We conclude that treatment of seeds with plant essential oils and extracts, it was found that the garlic extract and essential oil of orange peel reduced the incidence of A. dauci and A. alternata on carrot seed.