2005
DOI: 10.1590/s0103-90162005000300004
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Polymer coating, germination and vigor of broccoli seeds

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 … Show more

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Cited by 16 publications
(8 citation statements)
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“…Similar results were observed by Gesch and Archer (2005) from TAP (temperatureactivated polymers) coated com seeds in comparison to uncoated seeds whereas Almeida et al (2005) observed no change in the physiological properties of the seed nor they found difference in germination as well as in speed of seedling emergence from soil between coated and noncoated seed in Brassica olerácea var itálica. Contrary to this.…”
Section: Effect Of Polymer Coating On Seedling Establishment In Clay supporting
confidence: 79%
“…Similar results were observed by Gesch and Archer (2005) from TAP (temperatureactivated polymers) coated com seeds in comparison to uncoated seeds whereas Almeida et al (2005) observed no change in the physiological properties of the seed nor they found difference in germination as well as in speed of seedling emergence from soil between coated and noncoated seed in Brassica olerácea var itálica. Contrary to this.…”
Section: Effect Of Polymer Coating On Seedling Establishment In Clay supporting
confidence: 79%
“…Por outro lado, uma característica importante e necessária nos filmes de recobrimento, é que estes não afetem negativamente o processo de germinação e vigor das sementes. Por exemplo, estudos recentes envolvendo o processo de germinação de sementes de brócolos recobertas por filmes formados por hidroxietilcelulose, 10 quitosana e gelatina, 11 pectina/ácido esteárico e pectina/gelatina, 12 mostraram que o processo de germinação e vigor das plântulas não foi diferente em sementes com e sem recobrimento. Ainda, o recobrimento de sementes de salsa com filmes de quitosana e gelatina não afetou a qualidade das sementes em termos da capacidade de germinação.…”
Section: Introductionunclassified
“…Currently, the standard in the industry is to use a film for seed coating, which is usually obtained by the application of a polymer suspension via a fluidized bed or a rotary coater [ 20 , 21 , 22 ]. In the past decade, biopolymers, such as hydroxyethylcellulose [ 23 ], chitosan (CS) [ 24 ], gelatin–gum arabic [ 25 ], and, more recently, a mixture of biopolymers [ 26 ], have been used as substitutes to synthetic materials owing to their environment friendly and nontoxic characteristics, as well as good adherence to the seeds [ 21 , 26 ]. Figure 3 displays a schematic representing various seed coating approaches that we will be discussing in the subsequent sections, and Table 1 summarizes some of the recent strategies explored to establish sustainable crop protection using biodegradable matrices derived from natural sources.…”
Section: Biodegradable Seed Coatingsmentioning
confidence: 99%
“…In an attempt to reduce the fossil fuel–based polymers and owing to the biodegradable nature, ease of availability, and generally low cost of the precursors, biodegradable polymers have been used in seed coating over the last two decades. Gelatin [ 25 ], gums [ 25 , 28 ], CS [ 24 , 29 ], cellulose and its derivatives [ 23 , 29 , 30 ], starch [ 26 , 31 ], and alginates [ 32 ] are some of the biopolymers that are used alone or in combination with other materials as seed coats for targeted delivery of AIs and enhanced growth and preservation of plants. However, most of the biopolymers have to be used with additional substances, that is, surfactants and film formers.…”
Section: Biodegradable Seed Coatingsmentioning
confidence: 99%