Efeito de biorregulador na germinação e no vigor de sementes de soja

Moterle, Lia Mara; Santos, Rayssa Fernanda dos; Scapim, Carlos Alberto; Braccini, Alessandro de Lucca e; Bonato, Carlos Moacir; Conrado, Thiago Vicenzi

doi:10.1590/s0034-737x2011000500017

Cited by 49 publications

(36 citation statements)

References 11 publications

(15 reference statements)

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“…Considering the possible content of phytohormones (or similar) of the liquid extract, these results are consistent with the report of Moterle et al (2011) and Vieira and Castro (2001) who found that there were positive changes in the performance of seedlings, increase in the length of the aerial part of the soybean seedlings treated with Stimulate®. One was Bioregulator registered and recommended for soybean culture (EMBRAPA, 2014).…”

Section: Resultssupporting

confidence: 92%

Kappaphycus alvarezii extract used for the seed treatment of soybean culture

Costa¹,

Alves²,

Alab³

et al. 2017

Afr. J. Agric. Res.

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Marine macroalgae, Kappaphycus alvarezii has economic importance which is considered as the main source of Kappa carrageenan, a hydrocolloid used in various industries as an emulsifying agent and stabilizer. In the production process of this raw material, the fresh seaweed is subjected to grinding and filtering process, yielding a wet solid fraction rich in carrageenan and other liquid fractions. The latter has been studied for its use in pulverization of bean leaves, wheat, soybean, rice, among others. Several reports have shown positive effects on the growth, yield and quality of vegetables and grains treated with the extract of this alga. However, there are few reports on the use of the liquid extract of K. alvarezii for seed treatment, and also of its use in conjunction with the solid fraction of seaweed. In this context, this study aims to evaluate the physiological quality of soybean seeds treated with liquid extract of this alga and, with the mixture of liquid extract and solid biomass, submitted to a hydrolysis process. Two soybean seed treatment tests were performed in laboratory: one treatment contained pure liquid extract (100%) while the other was mixed with two samples of solid biomass hydrolyzed with concentrations of 25 and 75%. For comparison of their results, there was a positive control treatment and one negative control treatment. The results showed that, within the present working conditions, treatments with seaweed extract can increase the length of the aerial part of the seedling up to 28% and the length of the primary root up to 19% as compared to the negative control; thus, it improves the physiological performance of seeds.

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Section: Resultssupporting

confidence: 92%

Kappaphycus alvarezii extract used for the seed treatment of soybean culture

Costa¹,

Alves²,

Alab³

et al. 2017

Afr. J. Agric. Res.

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show abstract

“…However, productivity increases are still necessary and possible, through practices such the use of high quality seeds (Mertz et al, 2009;Moterle et al, 2011).…”

Section: Introductionmentioning

confidence: 99%

Spray volumes in the industrial treatment on the physiological quality of soybean seeds with different levels of vigor

et al. 2017

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-The aim of this work was to evaluate the effect of different spray volumes, via industrial treatment, on the physiological quality of soybean seeds with different levels of vigor. The experimental design was completely randomized in a 2x5 factor scheme, with four replications. Factors consisted in two levels of seed vigor (high and low) and five spray volumes (0, 600, 1200, 1800 and 2400 mL. 100 kg -1 ). Products used to obtain the volumes were: fungicide (carbendazin + thiram); insecticide (imidacloprid + thiodicarb); nematicide (abamectin); micronutrients (cobalt, molybdenum and zinc); polymer (peridiam); biostimulants (kinetin + gibberellic acid) and inoculum (Bradyrhizobium japonicum). The used cultivars were BRS 360 RR and BRS 1010 IPRO. The physiological seed quality was determined by the following evaluations: germination, first count of the germination test, seedling emergence in sand, emergency speed index, total length of shoot and root of the seedlings. In the different spray volumes, high vigor soybean seeds have higher physiological quality than low vigor seeds. The increased spray volumes in seed treatments reduce the physiological quality of low vigor soybean seeds.

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“…The attributes which determine the seeds quality are related to genetic, physical, physiological and sanitary factors. These attributes can be characterized by germination, vigor and longevity tests which show their viability (Moterle et al, 2011;Nerling et al, 2013).…”

Section: Introductionmentioning

confidence: 99%

Physiological quality of hybrid maize seeds through respiratory and enzymatic activities

Heloisa¹,

Iolanda²,

dila³

et al. 2016

Afr. J. Agric. Res.

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With the increased demand for high quality maize seeds, the market absorbs innovations that add speed and reliability in the tests that enable differentiation of potential performance of seed lots. This study aims to evaluate the combination of the physiological tests with the expression of enzymes of respiratory route for differences in vigor levels in lots of hybrid seed corn. The percentage of germination, germination first count, emergence on tray, index of emergency speed, accelerated aging and respiration rate were evaluated by Pettenkoffer and Titulation method. Furthermore, the expression of alpha amylase, alcohol dehydrogenase, malate dehydrogenase and pyruvate decarboxylase was analyzed. With the results, it is determined that the vigor tests analyzed, together with the tests of enzymatic expressions of respiratory route were efficient to detect different levels of force in hybrid seed corn. Lot 1 had higher physiological quality while lot 2 had the lowest vigor compared to the other lots. With the vigor tests and expression of enzymes, it was possible to differentiate the quality of the seeds and therefore it can be recommended as reliable tests for defining the quality of seed lots.

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Efeito de biorregulador na germinação e no vigor de sementes de soja

Cited by 49 publications

References 11 publications

Kappaphycus alvarezii extract used for the seed treatment of soybean culture

Kappaphycus alvarezii extract used for the seed treatment of soybean culture

Spray volumes in the industrial treatment on the physiological quality of soybean seeds with different levels of vigor

Physiological quality of hybrid maize seeds through respiratory and enzymatic activities

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