Armazenamento de sementes de braquiária peletizadas e tratadas com fungicida e inseticida

Pereira, Carlos Eduardo; Oliveira, João Almir; Rosa, Michele Cristina Marques; Kikuti, Ana Lúcia Pereira

doi:10.1590/s0103-84782011001200004

Cited by 16 publications

(18 citation statements)

References 10 publications

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“…Another machine would be the seed treater, used optionally, given that some foragers companies adopt the coating of these with dyes, polymers and other products to provide a more attractive appearance to the consumer market (PEREIRA et al, 2011;OLIVEIRA et al, 2014a;MELO et al, 2016).…”

Section: Introductionmentioning

confidence: 99%

Processing in the Quality of Tanzania Grass Seeds

et al. 2016

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ABSTRACT:The available research concerning the processing of grass seeds is scarce, despite its fundamental importance for national and international agribusiness. The objective of this project was to evaluate the effects of processing phases on the physical and physiological quality of tanzania grass seeds for commercialization purposes. Seeds were sampled before processing and after leaving the air and screen machine (upper and intermediate screens and bottom); first gravity table (drift, upper and intermediate spouts); treating machine; second gravity table (upper, intermediate, and lower spouts). Seeds were evaluated as to water content, physical quality (purity and 1,000 seeds weight) and physiological (germination, first count of germination, seedling vigor rating, seedlings length of primary roots and shoots, seedling emergence in the field, and emergence speed index). The processing of Tanzania grass seeds in the air screen cleaner machine and gravity table are efficient to improve the physical quality of the lot. The seed treatment with dye ink reduces the seedlings emergence speed in the field. The processing is not required to meet the national commercialization standards of the Tanzania grass seeds, but for the international.

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Section: Introductionmentioning

confidence: 99%

Processing in the Quality of Tanzania Grass Seeds

et al. 2016

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“…Among the commercialized species, Brachiaria brizantha is the most important (PEREIRA et al, 2011). The 'BRS Piatã' cultivar started to be distributed among farmers in 2007 by EMBRAPA (Brazilian Agency for Agricultural Investigation) since it displays superior qualities in comparison with cultivar 'Marandu', which was then the prevailing cultivar in pasture areas (EMBRAPA -CNPGC, 2015).…”

Section: Introductionmentioning

confidence: 99%

Evaluation the physiological quality of Brachiaria brizantha cv. BRS ‘Piatã’ seeds

Silva¹,

Martins²,

Cruz³

et al. 2017

Biosci. J.

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ABSTRACT:In a quality control program, seed vigor evaluation is of fundamental importance for the success of the program. The objective of this project was to evaluate the efficiency of several vigor tests to evaluate the physiological quality of Brachiaria brizantha cv. 'BRS Piatã' seed lots and to preview seedling emergence in the field. Ten grass seed lots of the B. brizantha cv. 'BRS Piatã' were evaluated by the following tests: germination, first count of germination, accelerated aging (43 °C/48 hours), cold test (seeds rolled in paper towel), seed water content before and after accelerated aging, electrical conductivity (50 and 75 mL, 25 °C and readings made 2, 4, 6, 8, and 24 hours after beginning the test), speed of germination index, and seedling emergence in sand substratum in the laboratory (26 ± 3 °C) and daily seedling counts between the 7th and the 21th day after sowing. The treatment replications were distributed in the laboratory according to a completely random design with four replications. Seedling emergence in the field data were analyzed according to a randomized complete block design. Treatment means were compared by the Scott Knott test, at the 5% level of probability. The tests for germination and first germination count, seedling emergence and first emergence count in the sand, and accelerated aging are useful to assess the vigor of seed batches of the piatã grass, and provide similar evidence to the seedling emergence in the field.

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“…stands out as the most sown in Brazil and highest volume to be exported (LANDERS, 2007). However, the seed quality of this species is not always satisfactory and researches on the subject are rare (PEREIRA et al, 2011). The physiological quality of a seed is an important characteristic, represented by germination and vigor that are essential for rapid establishment of pastures (CUSTÓDIO et al, 2011).…”

Section: Introductionmentioning

confidence: 99%