Sistema radical de plântulas como indicativo de vigor e efeito de bioestimulante em sementes de feijão e milho

• Autor(a) principal: Conceição, Patrícia Marluci da
• Data de Publicação: 2011
• Tipo de documento: Tese
• Idioma: por
• Título da fonte: LOCUS Repositório Institucional da UFV
• Texto Completo: http://locus.ufv.br/handle/123456789/1152
• topic: Radical; Bioestimulante; Milho; Feijão; Qualidade; Sementes; Root; Biostimulant; Corn; Bean; Quality; Seeds; CNPQ::CIENCIAS AGRARIAS::AGRONOMIA::FITOTECNIA::PRODUCAO E BENEFICIAMENTO DE SEMENTES

The objective of this work was to evaluate physiology quality of corn and bean seeds by using root system of seedlings as reference; to verify the effect of beans seed mass on its physiologic quality and on the root system of seedlings; to evaluate the effect of Stimulate biostimulant on seeds of corn and beans. To obtain lots with different physiologic quality and thus to evaluate root system of corn seedlings, UFV-M100 seeds were harvested at different seasons or submitted to different threshing methods. Mass of dry seminal roots presented potential to differentiate vigor of lots harvested in different season; however characteristics of seminal roots did not differentiate lots submitted to mechanical damage. To obtain lots of bean seeds with different qualities and therefore to evaluate root system of the seedlings, Carnaval MG cultivar seeds were dried at different temperatures or submitted to different threshing methods. The number of whorls, the number and length of basal roots differentiate vigor of lots submitted to different temperatures but they were not efficient to differentiate them in relation to mechanical damage. Mass of bean seeds did not influence physiologic quality of the seeds but it does have effect on root system, specifically on length and mass of basal roots. In evaluations with Stimulate, treatment with bean and corn seeds with Stimulate did not influence physiologic quality of seeds and root system of seedlings.