Condicionamento fisiológico de sementes de milheto

Peske, Fabrício Becker; Novembre, Ana Dionisia da Luz Coelho

doi:10.1590/s0101-31222010000400015

Cited by 7 publications

(4 citation statements)

References 13 publications

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“…In spite of the broad utility of pearl millet, low physical and physiological quality of the seeds sold is currently one of the main problems (Peske and Novembre, 2010), given that production of pearl millet seeds with high physiological potential is fundamental for adequate establishment of seedlings in the field. In recent years, various studies directed to evaluation of the internal morphology of seeds have been based on image analysis techniques.…”

Section: Introductionmentioning

confidence: 99%

Image analysis to evaluate the physiological potential and morphology of pearl millet seeds

Javorski¹,

Castan²,

Silva³

et al. 2018

J. Seed Sci.

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The use of fast and precise procedures for seed analysis is an important factor for making decisions at different stages of seed production. The aim of this study was to evaluate the occurrence of internal damage and associate morphological traits of pearl millet seeds with their physiological potential, and evaluate seed vigor using the Seed Vigor Imaging System (SVIS®) compared to other traditional vigor tests. Eight seed lots of the pearl millet cultivar ADR 300 were analyzed for germination, vigor (first count, accelerated aging, cold test, and SVIS®), internal morphology (X-ray), and morphological parameters (perimeter, area, and roundness). The X-ray test is effective in evaluating the internal morphology of pearl millet seeds, allowing identification of mechanical damage and of deteriorated and malformed tissues, making it possible to establish a relationship between the damage observed and the negative effect on germination. SVIS® analyses on two-day-old seedlings are a reliable method for assessing seed vigor of pearl millet. Parameters of perimeter and area of the seeds are related to their physiological potential.

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Section: Introductionmentioning

confidence: 99%

Image analysis to evaluate the physiological potential and morphology of pearl millet seeds

Javorski¹,

Castan²,

Silva³

et al. 2018

J. Seed Sci.

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“…increments on number of normal seedlings in the first count of the germination test in relation to control. Lima and Marcos-Filho (2010), working with cucumber seeds, observed increase on number of normal seedlings in the first count of the germination test; Peske and Novembre (2010) have also obtained similar results for seeds of millet. However, Braccini et al (1997) did not observe differences on results achieved on first count of germination test between seeds submitted to osmopriming with fungicide and control.…”

Section: Resultsmentioning

confidence: 52%

Incidence of storage fungi and hydropriming on soybean seeds

Costa¹,

Bonassa²,

Novembre³

2013

J. Seed Sci.

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-Priming is a technique applicable to seeds of various plant species; however, for soybean seed there is little available information correlating such technique to the storage fungi. The objective of this study was to assess hydropriming on soybeans seeds and correlate this technique to occurrence of such fungi. For this, soon after acquisition the soybean seeds, cv. M-SOY 7908 RR, were characterized by: moisture content, mechanical damage, viability (seed germination and seedling emergence) and seed health. A completely randomized experimental design was used with treatments arranged into a factorial scheme 2 × 2 [2 levels of incidence of storage fungi (low and high) × 2 hydropriming (with and without) ]. After application of treatments, the seeds were analyzed by: moisture content, viability (seed germination and seedling emergence) and vigor (first count and accelerated aging). The hydropriming is beneficial to improve the quality of soybean seeds with low incidence of storage fungi, with increments on speed germination (first count) and seed germination after accelerated aging test. The high incidence of microorganisms can reduce the hydropriming benefits.Index terms: priming, Aspergillus spp., Penicillium spp., Glycine max.Incidência de fungos de armazenamento e hidrocondicionamento de sementes de soja RESUMO -O condicionamento fisiológico é uma técnica aplicável às sementes de várias espécies vegetais. No entanto, para as sementes de soja não há informação disponível, relacionando esta técnica com os fungos de armazenamento. Desta forma, o objetivo dessa pesquisa foi avaliar a interação entre o hidrocondicionamento de sementes de soja e a incidência desses fungos. Foram avaliadas sementes de soja, cultivar M-SOY 7908 RR, que, logo após a aquisição, foram caracterizadas quanto ao teor de água, dano mecânico, viabilidade (testes de germinação e emergência da plântula) e sanidade. O delineamento experimental utilizado foi o completamente ao acaso com tratamentos arranjados em esquema fatorial 2 × 2 (alta e baixa incidência de fungos × com e sem hidrocondicionamento). Após a aplicação dos tratamentos as sementes foram avaliadas quanto: ao teor de água, à viabilidade (germinação das sementes e emergência da plântula) e ao vigor (primeira contagem e envelhecimento acelerado). O hidrocondicionamento, quando aplicado em sementes de soja com incidência baixa de microrganismos de armazenamento, é benéfico para aprimorar a qualidade das sementes, com incremento da velocidade de germinação (primeira contagem) e da germinação após o teste de envelhecimento acelerado. No entanto, a incidência alta desses microrganismos prejudica os benefícios do hidrocondicionamento.Termos para indexação: condicionamento fisiológico, Aspergillus spp., Penicillium spp., Glycine max.

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“…One of the problems that millet has faced in the Brazilian trade is the low physical, physiological and health quality of the seeds, which are limiting factors for the expansion of this crop (Peske & Novembre 2010). The physical quality refers to the integrity of seeds and seed lots, considering the physical purity and damages (Grzybowski et al 2019); the physiological quality includes attributes related to germination and vigor, and demonstrates which seeds present viability and potential to generate seedlings in a faster and more uniform way, even in adverse field conditions (Han et al 2014); and the health quality offers information on the presence or absence of pathogens related to the seeds (Santos et al 2014).…”

Section: Abstract Resumomentioning

confidence: 99%

Quality of millet seeds at different positions of the panicle

Martinatti

Raimundo

Zacharias

et al. 2020

Pesqui. Agropecu. Trop.

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Many factors may interfere in the quality of millet seeds; however, it is not known whether the location at different positions of the panicle may affect this quality. This study aimed to evaluate the quality of millet seeds produced at different positions of the panicle using uniformity, 1,000-seed mass, water content, X-ray, germination, seedling length, seedling dry matter mass, cold and health tests. The panicles were divided into five equidistant portions (proximal 1, proximal 2, intermediary, distal 1 and distal 2), starting from the panicle insertion. It was observed that there are differences among the positions of the seeds in the panicles related to the physical, physiological and health characteristics. The seeds located at the ends of the panicles presented a lower mass and physiological potential. The highest occurrence of Fusarium sp. was verified in the seeds from the proximal 1 portion, what might indicate a possible cause for the reduction in the physiological potential. Seeds from the intermediary portion present a higher mass, percentage of intact seeds and physiological potential.

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Condicionamento fisiológico de sementes de milheto

Cited by 7 publications

References 13 publications

Image analysis to evaluate the physiological potential and morphology of pearl millet seeds

Image analysis to evaluate the physiological potential and morphology of pearl millet seeds

Incidence of storage fungi and hydropriming on soybean seeds

Quality of millet seeds at different positions of the panicle

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