Aplicação De Biorregulador Na Produtividade Do Algodoeiro E Qualidade De Fibra

Albrecht, Leandro Paiola; Braccini, Alessandro de Lucca e; Ávila, Marizangela Rizzatti; Barbosa, Mauro Cezar; Ricci, Thiago Toshio; Albrecht, Alfredo Júnior Paiola

doi:10.5380/rsa.v10i3.14474

Cited by 18 publications

(26 citation statements)

References 9 publications

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“…High doses inhibit the root and cause shoot growth (RAVEN et al, 2007;TAIZ;ZAIGER, 2009). Similar to what was reported for 'Híbrida Superex', positive effects have been reported for other species as, for example, increases in the physiological and sanitary quality of soybean (Glycine max) seeds (ALBRECHT et al, 2010;ÁVILA et al, 2008) and increases in soybean yield (MOTERLE et al, 2008). In fact, the application of bio-regulator has improved the seed quality of some kitchen garden plants (PRADO NETO et al, 2007).…”

Section: Resultssupporting

confidence: 67%

“…Average normal seedlings was 21% for 'Bola Precoce' and 77% for 'Híbrida Superex'. Further, quadratic responses were reported for other species and indicated losses in the percentage of normal seedlings at the highest doses of bio-regulators (ALBRECHT et al, 2010;ÁVILA et al, 2008). High physiological quality of seeds from the cultivar 'Híbrida Superex' enhanced the importance of the genotype in maintaining seed vigour and the germination of horticulture plants (MARCOS FILHO, 2005;PRETE;GUERRA, 1999).…”

Section: Resultsmentioning

confidence: 85%

“…The application of bio-regulators has been recently recommended to increase the productivity of several crops, such as soybean, beans, maize and rice (KLAHOLD et al, 2006;ALBRECHT et al, 2009ALBRECHT et al, , 2010. Bio-regulators are natural or synthetic substances applied to seeds and other parts of plant to produce the plant's hormone effects.…”

Section: Introductionmentioning

confidence: 99%

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Influence of bio-regulators on the seed germination and seedling growth of onion cultivars

Leszczynski¹,

Braccini²,

Albrecht³

et al. 2012

Acta Sci. Agron.

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ABSTRACT. Application of bio-regulators improves the productivity of cash crops. Current experiment evaluates the effects of different doses of a bio-regulator on the seed quality of three onion cultivars ('Baia Periforme', 'Bola Precoce' and 'Híbrida Superex'). Six doses of bio-regulator at 0, 2.5, 5.0, 10.0, 20.0 and 30.0 mL kg -1 were applied and results were compared to those of three controls. The experimental design was entirely randomized under the factorial arrangement 3 x 6 + 3, with four replications. Data were subjected to analysis of variance (p < 0.05), and all seed treatments were compared with controls by Dunnett's test. The analysis of regression described the effects of the increasing doses of bio-regulator on germination and vigor responses which were evaluated by the first count of the germination test, the percentage of germination and the length of the roots and shoots of the normal seedlings. The application of the bio-regulator did not improve the percentage of seed germination and no positive response of the seedlings was reported from the cultivars 'Baia Periforme' and 'Bola Precoce'. However, seedling vigor of 'Híbrida Superex' was positively affected by the application of the bio-regulator.

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Section: Resultssupporting

confidence: 67%

Section: Resultsmentioning

confidence: 85%

Section: Introductionmentioning

confidence: 99%

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Influence of bio-regulators on the seed germination and seedling growth of onion cultivars

Leszczynski¹,

Braccini²,

Albrecht³

et al. 2012

Acta Sci. Agron.

Self Cite

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“…Diversos trabalhos já têm demonstrado a influência do Stimulate ® no potencial fisiológico de sementes, como Santos et al (2013) na cultura do girassol, Leszczynski et al (2012) em cultivares de cebola, Dantas et al (2012) em tamarindeiro, Albrecht et al (2009) em soja, Oliveira et al (2013) em feijoeiro, Dan et al (2014) em milho, Albrecht et al (2014) em ervilha. Entretanto, para a cultura do arroz, observa-se certa insuficiência de informações referentes ao efeito deste produto.…”

Section: Introductionunclassified

Physiological potential in rice seeds treated with a plant bioregulator

Elli

Monteiro

Kulczynski

et al. 2016

Revista Ciência Agronômica

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“…Na literatura, constatam-se diversos resultados positivos para o uso de bioestimulantes nas principais culturas de interesse comercial. Em algodão, foi observado aumento na porcentagem de emergência e vigor de plântulas, além de maior velocidade de crescimento radicular (VIEIRA; SANTOS, 2005;ALBRECHT et al, 2009). Em soja, o uso de bioestimulantes influenciaram a germinação e a biomassa de matéria seca de sementes e resultaram em plantas com maior altura (KLAHOLD et al, 2006;ÁVILA et al;2008;CAMPOS et al, 2008).…”

Section: Introducãounclassified

Avaliação Fisiológica De Sementes De Arroz Submetidas a Doses De Bioestimulante

Rodrigues

Batista

Alvarez

et al. 2015

Nucleus

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RESUMO:Os bioestimulantes são compostos por fitormônios e têm efeito sobre o metabolismo de diferentes plantas, sendo aplicados, usualmente, sobre as sementes em culturas no momento da semeadura. Dessa forma, é fundamental conhecer os efeitos desse produto na qualidade fisiológica de sementes. Assim, este trabalho objetivou avaliar o efeito de doses de bioestimulante nas características fisiológicas de sementes de arroz. Os tratamentos constituíram-se de doses crescentes do produto comercial Stimulate® (0, 250, 500, 750 e 1000 ml para 100 kg de sementes) adicionadas diretamente às sementes de arroz, cultivar Primavera. Os testes para avaliação da germinação e vigor foram: primeira contagem de germinação, germinação, emergência, índice de velocidade de emergência, comprimento do sistema radicular e parte aérea, massa de matéria seca da raiz e parte aérea. O comprimento da parte aérea aumentou com as doses crescentes de Stimulate®. A germinação, o comprimento de raiz, a massa de matéria seca da raiz e parte aérea, o índice de velocidade de emergência e a percentagem de emergência não foram afetados pelas doses de Stimulate. Doses de 1000 mL para 100 kg sementes, podem ser utilizadas no arroz, aumentando o comprimento da parte aérea, mas sem afetar a germinação das sementes.Palavras chaves: Oryza sativa. Stimulate. Fitormônios. Germinação. PHYSIOLOGICAL EVALUATION OF SEEDS OF RICE UNDER DOSE OF BIOSTIMULANT SUMMARY:The biostimulants are composed of phytohormones and have effect on the metabolism of various plants and are applied usually on the seed at sowing crops moment. Therefore, it is important to know the effects of this product on the physiological quality of seeds. Thus, this study aimed to evaluate the effect of doses of biostimulants on physiological characteristics of rice seeds. The treatments consisted of increasing doses of the commercial product Stimulate ® (0, 250, 500, 750 and 1000 ml for 100 kg of seeds) added directly on the rice seed cultivate Primavera. For germination and vigor, treated seeds were subjected to the following tests: first count (PCG), germination (G), emergence (E), speed of emergence (IVE), length of the root system (CSR) and shoot (CPA), dry matter of the root (MSR) and shoot (MPA). The shoot length increased with increasing doses of Stimulate ® . The germination, root length, the dry mass of roots and shoots, the rate of emergence rate and percentage of emergence were not affected by the doses of Stimulate. Doses of 1000 mL per 100 kg seed can be used in rice, increasing the shoot length, but without affecting the germination of seeds.

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Aplicação De Biorregulador Na Produtividade Do Algodoeiro E Qualidade De Fibra

Cited by 18 publications

References 9 publications

Influence of bio-regulators on the seed germination and seedling growth of onion cultivars

Influence of bio-regulators on the seed germination and seedling growth of onion cultivars

Physiological potential in rice seeds treated with a plant bioregulator

Avaliação Fisiológica De Sementes De Arroz Submetidas a Doses De Bioestimulante

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