Efeitos de misturas de sementes de milho sobre a germinação e vigor

Borges, J.W.M.; Fraga, Antônio Carlos; Silveira, José Francisco dos Santos; Aquino, Luiz Henrique de

doi:10.17801/0101-3122/rbs.v9n2p45-54

Cited by 2 publications

(1 citation statement)

References 0 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…Boaro et al (1984) verified the efficiency of this test to assess the vigor of bean seeds compared to the germination, accelerated aging and low temperature tests. Other studies have also demonstrated that the immersion in toxic solution test can be used to assess the level of vigor of maize (Borges et al, 1987) and sorghum seeds (Andrade et al, 1993). Howerver, other authors, such as Cardoso Sobrinho et al (1998), Silva et al (2001) and Soares et al (2010) found that in sorghum the use of this test has not allowed the classification of the seed lots in vigor levels.…”

Section: Introductionmentioning

confidence: 99%

Immersion time in toxic solution for vigor evaluation of bean seeds

et al. 2014

View full text Add to dashboard Cite

-Considering the lack of information about the optimal permanence time of bean seeds in toxic solutions, this work aimed to evaluate the effect of different immersion times to differ of the seeds vigor. It was used five seed lots of cultivar 'Carnaval MG'. The seeds were immersed in a solution of ammonium chloride (1%) during 15, 30, 45, 60 and 75 minutes, in BOD at 40 ºC. Then, the seeds were washed and placed to germinate. Additionally, germination tests, first count, emergence speed index (SEI), seedling emergence, fresh and dry weight of seedlings were carried out. A completely randomized design and a factorial scheme 5 x 5 (seed lots and immersion times) with four replications were employed. Analysis of variance and regression were performed and the means were compared by Tukey's test (α = 5%). Pearson correlation was performed among treatments in toxic solution and the other tests. It was verified that it is possible to estimate the seed vigor, from different lots of beans using the immersion of seeds in a toxic solution of ammonium chloride (1%) during 30 minutes.Index terms: germination, NH 4 Cl, Phaseolus vulgaris.Tempo de imersão em solução tóxica na avaliação do vigor de sementes de feijão RESUMO -Devido à escassez de informações sobre o período ideal de permanência das sementes de feijão em soluções tóxicas, objetivou-se identificar qual o melhor tempo de imersão das sementes de Phaseolus vulgaris em cloreto de amônio para identificação do vigor de diferentes lotes. Utilizaram-se cinco lotes de sementes da cultivar 'Carnaval MG', as quais foram imersas em solução de cloreto de amônio (1%) por 15, 30, 45, 60 e 75 minutos, e mantidas em BOD a 40 ºC. Em seguida, foram lavadas e colocadas para germinar. Foram realizados testes de germinação, primeira contagem, IVE, emergência de plântulas, massa da matéria fresca e seca de plântulas. O delineamento foi inteiramente casualizado, no esquema fatorial 5 x 5 (lotes de feijão x tempos de imersão), com quatro repetições. Os dados foram submetidos à análise de variância e de regressão, sendo as médias comparadas pelo teste Tukey (α = 5%). Foi realizada a correlação de Pearson entre os tratamentos referentes à solução tóxica e os demais testes. Verificou-se que é possível estimar o vigor de diferentes lotes de sementes de feijão quando se realiza a imersão das sementes em solução tóxica de cloreto de amônio a 1% durante 30 minutos.Termos para indexação: germinação, NH 4 Cl, Phaseolus vulgaris.

show abstract

Section: Introductionmentioning

confidence: 99%

Immersion time in toxic solution for vigor evaluation of bean seeds

et al. 2014

View full text Add to dashboard Cite

show abstract

Environmental influence on the physico-chemical and physiological properties of Jatropha curcas seeds

Pompelli¹,

Ferreira²,

Cavalcante³

et al. 2010

Aust. J. Bot.

View full text Add to dashboard Cite

The present study investigated the influence of two Brazilian environments on the physico-chemical and physiological properties of Jatropha curcas L. (physic nut) – an oilseed plant of great potential in biodiesel production. Fruits and seeds of plants grown in the Brazilian Atlantic rainforest (AF) and in the semiarid climate of Caatinga (SA) were compared. Fruits from the SA were longer, wider and heavier than those from the AF. In contrast, the AF seeds were larger and heavier than the SA seeds. Soluble sugars, protein, relative water content and electrical conductivity of the SA seeds significantly exceeded that of the AF seeds by 28%, 23%, 32% and 94%, respectively. Seeds of the AF had a significantly greater percentage germination (17.5%) and needed less time to germinate (10%) than did the SA seeds. Shoot dry biomass of seedlings grown from the AF seeds significantly exceeded that of the SA by 18.5%. Results suggest this pattern may be due to the higher carbon storage (i.e. sugars, proteins and oil) in the AF than SA seeds. Further studies are warranted to verify whether the differences observed between the seed sources investigated in the present study could be due to varietal or biotype factors.

show abstract

Efeitos de misturas de sementes de milho sobre a germinação e vigor

Cited by 2 publications

References 0 publications

Immersion time in toxic solution for vigor evaluation of bean seeds

Immersion time in toxic solution for vigor evaluation of bean seeds

Environmental influence on the physico-chemical and physiological properties of Jatropha curcas seeds

Contact Info

Product

Resources

About