Affiliation:
1. Universidade de Brasília, Brasil
2. Universidade Estadual de Campinas, Brasil
3. Instituto Agronômico de Campinas, Brasil
Abstract
Brassica oleracea var italica occupies a special place in the internal and external market of vegetables seeds. Vegetables producers demand seeds with high degree of purity, germination and vigor, since seeds' quality is the basis for the success of the production. In this work, broccoli seeds were coated in a spouted bed, by an aqueous suspension of hidroxy-ethyl-cellulose. Effects of the operating variables: spouting air temperature, atomizing air pressure and coating suspension flow rate over the dependent variables: seeds germination, seeds accelerated aging and the speed of seeds germination in soil, were investigated in a factorial scheme trial. The maximum processing time was 120 min. A totally randomized experiment evaluated and compared seeds germination and vigor of the coated and non-coated seeds. There was no identifiable, pronounced difference on germination of coated and non-coated seeds, accelerated aging of seeds, and speed of seeds germination in the soil. Coating with hidroxy-ethyl-cellulose in the spouted bed did not alter broccoli seeds physiologic quality. The surface of coated seeds presented satisfactory distribution and spreading of the polymer film, uniform and individual coating and homogeneous aspect.
Subject
Agronomy and Crop Science,Animal Science and Zoology
Reference12 articles.
1. Fluidodinâmica de sementes de brócolos em leito fluidizado e leito de jorro;ALMEIDA C. de;Scientia Agricola,2002
2. Seed vigor testing handbook,1983
3. Regras para análise de sementes,1992
4. The effects of duration and temperature of treatment in a prototype fluidized-bed seed treatment on the subsequent germination of seed of oilseed rape Brassica napus L;DREW R.L.K.;Seed Science and Technology,1989
5. The bulk conductivity test as an indicator of soybean seed quality;LOEFFLER T.M.;Journal of Seed Technology,1988
Cited by
10 articles.
订阅此论文施引文献
订阅此论文施引文献,注册后可以免费订阅5篇论文的施引文献,订阅后可以查看论文全部施引文献