6 documents found, page 1 of 1
Phytotoxic effects of essential oils in controlling weed species Digitaria hori...
Reis, Marcelo Rodrigues dos; Ootani, Marcio Akio; Cangussu, Alex Sander Rodrigues; Capone, Aristoteles; Fidelis, Rodrigo Ribeiro; Oliveira, WennderIn certain plant species, essential oils have been reported to inhibit seed germination and cause toxicity and have been associated with a loss of photosynthetic activity. This study aimed to evaluate the effects of essential oils and their major compound citronellal on the germination and growth of crabgrass (Digitaria horizontalis) and burrgrass (Cenchrus echinatus). Essential oils from E. citriodora and C. n...
Agronomic characterization and resistance of banana genotypes to Colletotrichum...
Ootani, Marcio Akio; dos Santos, Gil Rodrigues; Maciel, Gabriela Priscila de Sousa; de Souza, Clovis Maurilio; Aguiar, Raimundo Wagner de SouzaBanana is the most consumed fruit in the world as it is a delicious and aromatic fruit. However, its production is limited mainly due post-harvest problems such as diseases, especially anthracnose, which accelerates senescence and causes early fall. The aim of this work was to evaluate the agronomic traits and the resistance of banana genotypes (Fhia 18, Fhia 01, Thap Mae, Caipira, Prata (control) and Maçã (con...
Susceptibility assessment of watermelon and pumpkin cultivars to potyvirus in T...
Ootani, Marcio Akio; Aguiar, Raimundo Wagner de Souza; Maciel, Gabriela Priscila de Sousa; Carvalho, Francisca Luana de Araújo; Lopes, Larissa AlvesCucurbits cultivation has great importance in the food industry. However, in the main producing regions of curcubits, the increase of cultivation areas has been limited by viral infections. Among the most prevalent viruses there is the Watermelon Mosaic Virus (WMV), Papaya Ringspot Virus (PRSV-W) and Zucchini Yellow Mosaic Virus (ZYMV). The aim of this study was to evaluate the reaction of watermelon genotypes ...
Prospecção e atividade de actinobactérias de solo e de rizosfera de plantas da ...
Ootani, Marcio AkioOOTANI, Marcio Akio. Prospecção e atividade de actinobactérias de solo e de rizosfera de plantas da caatinga para controle do Colletotrichum musae (Berk. & M.A. Curtis) Arx. 2016. 99 f. Tese (Doutorado em Fitotecnia)-Universidade Federal do Ceará, Fortaleza, 2016.; Banana is one of the most consumed fruits in the country, economically important for Brazilian agriculture. However, production has been limited mai...
Resistência à herbivoria contra Cerotoma arcuatus Olivier , 1791 (Coleoptera: ...
Ootani, Marcio Akio; de Souza, Cintia Ribeiro; Rodrigues, Diego de Macedo; da Silva, Juciele Cardoso; de Melo, Aurélio VazObjetivou-se neste trabalho avaliar níveis de herbivoria de Cerotoma arcuatus Olivier, 1791 (Coleoptera: Chrysomelidae) em genótipos de soja, comparando propriedades morfológicas como; densidade de tricomas (DT), espessura foliar (EF), número de C. arcuatus (NC) e área danificada (AD). O experimento foi realizado na Universidade Federal do Tocantins campo experimental de Gurupi-TO ano 2008/09, o delineamento ex...
Toxicidade de óleos essenciais de eucalipto e citronela sobre Sitophilus zeamai...
Ootani, Marcio Akio; de Souza Aguiar, Raimundo Wagner; de Mello, Aurélio Vaz; Didonet, Julcemar; Franke Portella, Augustus CaeserAnálise de CG/MS apresentou o citronelal como o principal fitoconstituinte dos óleos essenciais de E. citriodora e C. nardus, com 61,78 % e 36,53%, respectivamente. A toxicidade dos óleos e do constituinte citronelal para S. zeamais foi verificada por meio das estimativas das curvas de concentrações resposta e tempos de exposição letais para 50 e 95% dos insetos (CL50, CL95 e TL50, TL95). O composto citronelal ...