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Agronomic studies of corn during 1981 Thai Agricultural
Supot Faungfupong; Porn Rungchang; Jarong Rungchuang; Yuanjai Onriabroy.
1 ill., 10 tables
Palavras-chave: Corn; Maize; Agronomic studies; Seed vigor; Variety trials; Yields; Quality; Agronomic characters; Systemic fungicides; Downy mildew; Planting density; Yields; ข้าวโพด; ความหนาแน่นของประชากร; ความแข็งแรงของเมล็ดพันธุ์; การทดสอบผลผลิต; สารกำจัดเชื้อรา.
Ano: 1981 URL: http://anchan.lib.ku.ac.th/agnet/handle/001/4059
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Condutividade elétrica e teor de água inicial das sementes de soja. Repositório Alice
VIEIRA, R.D.; PENARIOL, A.L.; PERECIN, D.; PANOBIANCO, M..
O teor de água das sementes é fator de extrema importância na padronização do método do teste de condutividade elétrica, visto que influencia significativamente os resultados. O objetivo deste trabalho foi estudar o efeito do teor de água inicial sobre os resultados da condutividade elétrica das sementes de soja, e determinar uma equação capaz de corrigir a sua influência. Foram utilizadas seis cultivares de soja, em dois anos agrícolas, cada uma representada por lotes com três níveis de vigor. Foi ajustado o teor de água das sementes de cada lote para 7, 9, 11, 13, 15 e 17%, antes da condução do teste de condutividade elétrica; a equação de correção para ajuste dos dados foi determinada com base em regressões, com os resultados dos dois anos agrícolas,...
Tipo: Artigo em periódico indexado (ALICE) Palavras-chave: Glycine max; Vigor da semente; Teste de sementes; Equação de correção; Seed vigor; Seed testing; Adjustment equation.
Ano: 2002 URL: http://www.alice.cnptia.embrapa.br/handle/doc/108738
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Corn production research in 1989 Thai Agricultural
Supot Faungfupong; Juangjun Duangpatra; Surapol Chowchong; Rachain Thiraporn; Porntip Srisurapol.
6 ill., 5 tables
Palavras-chave: Corn; Maize; Plant density; Seed vigor; Sweet corn; Production; N fertilizer rate; ข้าวโพด; ข้าวโพดหวาน; ความหนาแน่น; ความแข็งแรงเมล็ด; อัตราปุ๋ยไนโตรเจน.
Ano: 1989 URL: http://anchan.lib.ku.ac.th/agnet/handle/001/4332
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Corn production research in 1990 Thai Agricultural
Supot Faungfupong; Juangjun Duangpatra; Surapol Chowchong; Rachain Thiraporn; Gunching Siriwitayawan; Kingkarm Kongjuntuk.
4 tables
Palavras-chave: Corn; Maize; Sweet corn; Yields; Production; Seeding rates; Plant population; Seed vigor; Yield component; ข้าวโพด; ข้าวโพดหวาน; การผลิต; ความหนาแน่น; ความแข็งแรงของเมล็ด; องค์ประกอบผลผลิต.
Ano: 1990 URL: http://anchan.lib.ku.ac.th/agnet/handle/001/4321
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Efeito da aplicação de manganês no rendimento e na qualidade de sementes de soja. Repositório Alice
MANN, E.N.; RESENDE, P.M. de; MANN, R.S.; CARVALHO, J.G. de; PINHO, E.V. de R.V..
O desequilíbrio nutricional, principalmente dos micronutrientes, tem sido um dos fatores para perdas na produção de sementes. Esses nutrientes desempenham papel em rotas bioquímicas que garantem a formação de lipídeos, proteínas e ainda contribuem na estruturação das membranas celulares. O objetivo deste trabalho foi avaliar a influência da aplicação de Mn na folha e no solo, sobre o rendimento e a qualidade de sementes de soja, cultivares Conquista e Garimpo. A qualidade das sementes foi avaliada por meio de testes de germinação, envelhecimento artificial, condutividade elétrica, índice de velocidade de emergência e pela determinação dos teores de proteína e óleo. Verificaram-se aumentos na produtividade, na germinação, no vigor e nos teores de proteína e...
Tipo: Artigo em periódico indexado (ALICE) Palavras-chave: Glycine max; Aplicação foliar; Vigor da semente; Solo; Produtividade; Foliar spray; Seed vigor; Soil; Productivity.
Ano: 2002 URL: http://www.alice.cnptia.embrapa.br/handle/doc/108857
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Effect of seed size and protein content and N application timing on seedling vigor and grain yield of barley. Repositório Alice
NEDEL, J.L.; ULLRICH, S.E.; PAN, W.L..
The objective of this study was to evaluate the effect of seed size, protein content and N application timing on barley seedling vigor and grain yield. Two seed sizes, three protein levels and two genotypes (Hazen and Hazen semi-dwarf, SD, isotype pair) were used in a laboratory and in a field study. In a greenhouse study with Hazen only, N application timing (at sowing and 20 days after emergence) treatments were added to the other treatments. High seed protein content and large seed positively affected coleoptile lenght, root dry weight and seedling dry weight at early stages of plant development, but had no effect on emergence rate index and plant and root dry weights at 40 days after emergence. Both the standard height and semi-dwarf isotypes responded...
Tipo: Artigo em periódico indexado (ALICE) Palavras-chave: Seed protein; Seed vigor; Nitrogen; Grain yield; Proteina na semente; Tamanho de semente; Vigor; Rendimento de semente.
Ano: 1996 URL: http://www.alice.cnptia.embrapa.br/handle/doc/104058
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Effect of Thymol on Soybean Seeds Germination: Physiological and Biochemical Analysis BABT
Lima,Eduarda Lee Ferreira; Macedo,Willian Rodrigues; Silva,Geraldo Humberto.
Abstract Higher levels of reactive species of oxygen are harmful to plant tissues. This study evaluated the action of different doses of thymol on soybean seed germination, biometric analysis and enzymatic parameters; both involved in germination process. High doses of thymol affected the plantlet growth, but not hampered the germination.
Tipo: Info:eu-repo/semantics/article Palavras-chave: Ascorbate peroxidase; Catalase; Superoxide dismutase; Glycine max L; Seed vigor.
Ano: 2019 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1516-89132019000100211
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Factors affecting forage stand establishment Scientia Agricola
Sulc,R.M..
Significant advances have been made in our knowledge of forage seed physiology, technology, and stand establishment practices; however, stand establishment continues to be one of the most common production problems affecting forage crops in the USA. There is a need for research on stand establishment of forage crops under abiotic and biotic stress. Although the forage seed industry produces and markets seed of high quality, new methods of assessing seed vigor are needed and their use should be expanded in the industry to enable matching seed lot performance to specific environmental conditions where performance can be maximized. Seed treatment and seed coating are used in the forage seed industry, and studies have shown they are of benefit in some...
Tipo: Info:eu-repo/semantics/article Palavras-chave: Planting; Seed coating; Seed quality; Seed treatment; Seed vigor.
Ano: 1998 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0103-90161998000500020
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Physiological quality of soybean seeds under different yield environments and plant density AGRIAMBI
Baron,Felipe A.; Corassa Junior,Geomar M.; Fioresi,Dejales; Santi,Antônio L.; Martini,Renan T.; Kulczynski,Stela M..
ABSTRACT Yield potential of agricultural fields associated with plant spatial arrangement could determine the physiological quality of soybean (Glycine max L.) seeds. Thus, this study aimed to evaluate the physiological quality of soybean seeds from different yield environments and plant densities. Experiments were carried out in Boa Vista das Missões-RS, Brazil, during the 2014/2015 growing season. Yield environments were delineated by overlapping yield maps from the 2008, 2009/2010 and 2011/2012 growing seasons. The experimental design was a randomized complete block in a 2 x 5 factorial arrangement with two yield environments (low and high) and five plant densities, with four replicates. Two varieties were tested: Brasmax Ativa RR (10, 15, 20, 25 and 30...
Tipo: Info:eu-repo/semantics/article Palavras-chave: Glycine max (L.); Seed vigor; Yield maps; Optimization.
Ano: 2018 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1415-43662018000400237
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Priming of pioneer tree Guazuma ulmifolia (Malvaceae) seeds evaluated by an automated computer image analysis Scientia Agricola
Brancalion,Pedro Henrique Santin; Tay,David; Novembre,Ana Dionisia da Luz Coelho; Rodrigues,Ricardo Ribeiro; Marcos Filho,Júlio.
Direct seeding is one of the most promising methods in restoration ecology, but low field seedling emergence from pioneer tree seeds still reduces its large scale applicability. The aim of this research was to evaluate seed priming for the pioneer tree species Guazuma ulmifolia. Priming treatments were selected based on seed hydration curves in water and in PEG 8000 solution. Seeds were primed in water for 16 h and in Polyethylene glycol - PEG 8000 (-0.8 MPa for 56 and 88 h) at 20ºC to reach approximately 30% water content. Half of the seed sample of each treatment was dried back to the initial moisture content (7.2%); both dried and non-dried primed seeds as well as the unprimed seeds (control) were tested for germination (percentage and rate) and vigor...
Tipo: Info:eu-repo/semantics/article Palavras-chave: SVIS®; Forest seeds; Seed vigor; Restoration ecology; Direct seeding.
Ano: 2010 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0103-90162010000300004
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Reproductive phenology and germination of Eleocharis laeviglumis R. Trevis. & Boldrini (Cyperaceae) Acta Botanica
Demeda,Camila Luisa Bernhardt; Seger,Guilherme Dubal dos Santos; Steiner,Neusa; Trevisan,Rafael.
ABSTRACT Aquatic macrophytes are important components of freshwater ecosystems, of which Cyperaceae is the most diverse family. Many species of Cyperaceae form dense populations along lake margins of the southern coast of Brazil, but little is known about their sexual reproductive strategies. We characterized the reproductive life cycle of Eleocharis laeviglumis, an abundant emergent macrophyte of coastal wetlands in southern Brazil, by assessing its reproductive phenophases and estimating the number of its flowers and potentially viable fruits per inflorescence in a natural population. We also tested seed germinability and vigor for a period of four months during a single reproductive season. The species possesses dichogamous and protogynous spikelets...
Tipo: Info:eu-repo/semantics/article Palavras-chave: Aquatic macrophyte; Coastal lake; Cyperaceae; Eleocharis; Sexual reproduction; Spikelet; Germinability; Reproductive phenology; Seed vigor.
Ano: 2018 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0102-33062018000300487
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Response of wheat seeds to zinc application during storage Ciencia e Investigación Agraria
Lemes,Elisa S; Tunes,Lilian M. de; Almeida,Andreia da S; Meneghello,Geri E; Oliveira,Sandro de; Muniz,Marlove F. B.
Seed coating is among the most potentially beneficial treatments to enhance seed performance, contributing to the improvement of crop stands due to its role in improved seedling development. Thus, micronutrients such as zinc exhibit potential for use in seed coatings. The objective of this research is to evaluate the effect of coating wheat seeds with zinc sulfate on traits that are related to seed quality during storage and nutrition efficiency during seedling growth. The levels of ZnSO4 used were 0, 1, 2, 3 and 4 mL kg-1 seed. After 0,3 and 6 months of storage, the germination percentage, mean root length, root dry mass, seedling emergence, nutritional efficiency (absorption, transport and use) and zinc content in the seeds were evaluated. Seed coating...
Tipo: Journal article Palavras-chave: Seed vigor; Triticum aestivum L; Zinc coating.
Ano: 2015 URL: http://www.scielo.cl/scielo.php?script=sci_arttext&pid=S0718-16202015000100011
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Split application of molybdic fertilizer at the reproductive stage of common bean increases the molybdenum content in seed Agronomy
Vieira, Rogerio Faria; Lima, Renan Cardoso; Prado, Adalgisa Leles do; Paula Júnior, Trazilbo José de; Soares, Bruno de Almeida.
We evaluated the effects of split molybdenum (Mo) application at the reproductive stage of the common bean on seed Mo content (SMoC) and seed quality in two trials in the Zona da Mata region, Minas Gerais. Plants were sprayed with 100 or 600 g Mo ha-1 at the V4 stage. The higher dose was also split into 100(V4)+500(R5), 100(V4)+500(R7), 100(V4)+250(R5)+250(R7), and 100(V4)+150(R5)+350(R7). SMoC from plants sprayed with 600 g (five treatments) was 3.7- or 62-fold higher than those sprayed with 100 g, with seeds from the former treatments exhibiting slightly poorer quality. Application of 100 g at V4 + 500 g at the reproductive stage (four treatments) increased SMoC 1.6- or 2.7-fold compared with SMoC from plants sprayed with 600 g at V4. Split application...
Tipo: Info:eu-repo/semantics/article Palavras-chave: 5.01.01.04-8 Phaseolus vulgaris; Seed molybdenum; Seed quality; Seed vigor; Seed germination. Microbiologia e Bioquímica do Solo 5.01.01.05-6 Fertilidade do Solo e Adubação.
Ano: 2016 URL: http://periodicos.uem.br/ojs/index.php/ActaSciAgron/article/view/30536
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Testes para determinação do potencial fisiológico de sementes de abóbora - DOI: 10.4025/actasciagron.v31i2.7040 Agronomy
Casaroli, Derblai; USP; Garcia, Danton Camacho; UFSM; Menezes, Nilson Lemos de; UFSM; Muniz, Marlove Fátima Brião; UFSM; Manfron, Paulo Augusto; UNESP.
O objetivo do trabalho foi comparar a eficiência de testes para determinação do potencial fisiológico de lotes de sementes de abóbora. Avaliaram-se seis lotes de sementes, submetidos a testes de germinação e vigor (primeira contagem; velocidade de germinação; germinação à temperatura subótima; envelhecimento acelerado; emergência de plântulas; crescimento e fitomassa seca de plântulas (radícula, hipocótilo e total) e plantas (raiz, caule, raiz e caule, folhas e total). Utilizou-se o delineamento inteiramente casualizado, com quatro repetições; as médias foram comparadas pelo teste de Tukey (p ≤ 0,05). Realizou-se também o teste de correlação de Pearson. Os testes de primeira contagem, velocidade de germinação, envelhecimento acelerado, fitomassa seca de...
Palavras-chave: 5.01.00.00-9 Agronomia Cucurbita moschata Duch.; Vigor de sementes; Eficiência de testes de vigor Cucurbita moschata Duch.; Seed vigor; Efficiency of vigor tests.
Ano: 2009 URL: http://periodicos.uem.br/ojs/index.php/ActaSciAgron/article/view/7040
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Use of chlrophyll fluorescence sorting to improve soybean seed quality Rev. bras. sementes
Cicero,Silvio Moure; Schoor,Rob Van Der; Jalink,Henk.
The occurrence of green seeded soybeans [Glycine max (L.) Merrill] is a problem closely related to unfavorable climatic conditions, mainly drought, that occurs during the final stages of seed maturation. This problem causes serious losses to soybean seed quality in Brazil. In these seeds, chlorophyll is not properly degraded during maturation, drastically reducing seed quality. Using the chlorophyll fluorescence technique, it is possible to remove green seeds from the seed lot, improving seed quality in several species in which the occurrence of green seeds is also a problem. The objective of this research was to study the use of the chlorophyll fluorescence technique in sorting green seeds from soybean seed samples and its effects on quality. Five seed...
Tipo: Info:eu-repo/semantics/article Palavras-chave: Glycine max (L.) Merrill; Green seeds; Seed maturation; Seed processing; Seed vigor.
Ano: 2009 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0101-31222009000400017
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Yield and quality of soybean seeds inoculated with Bacillus subtilis strains AGRIAMBI
Tavanti,Tauan R.; Tavanti,Renan F. R.; Galindo,Fernando S.; Simões,Isadora; Dameto,Larissa S.; Sá,Marco E. de.
ABSTRACT The use of growth-promoting bacteria can increase the yield and quality of seeds of several annual crops, such as soybean. Based on that, the present study aimed to evaluate the effects of the inoculation of Bacillus subtilis strains on seed treatment, evaluating the yield and quality of seeds of two soybean cultivars. The experiment was conducted in a conventional system, in an Oxisol of clayey texture, in a crop under sprinkler irrigation. The experimental design was randomized blocks, arranged in split plots with four repetitions. Treatments were composed, in the plots, of two soybean cultivars: M7110 IPRO and Brasmax Desafio RR. Within the levels of subplots, the treatments consisted of inoculation and doses of inoculant: Bacillus subtilis...
Tipo: Info:eu-repo/semantics/article Palavras-chave: Glycine max; Plant growth-promoting bacteria; Tetrazolium; Storage proteins; Seed vigor.
Ano: 2020 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1415-43662020000100065
Registros recuperados: 16
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