Regulador vegetal e bioestimulante na indução floral do maracujazeiro-amarelo em condições de entressafra

Ataíde, Elma Machado; Ruggiero, Carlos; Rodrigues, João Domingos; Oliveira, João Carlos de; Rodrigues, Teresinha de Jesus Deléo; Silva, José Rafael da

doi:10.1590/s0100-29452006000300003

Cited by 5 publications

(1 citation statement)

References 4 publications

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“…On the other hand, some surveys found no significant differences on Cotton (Baldo et al, 2006;Lima et al, 2006), Passion fruit (Ataíde et al, 2006) and Corn (Ferreira et al, 2008;Silva et al, 2008). Even though no significant difference was found for Beans, Alleoni et al (2000) stated that biostimulants contribute to improve crop yield and other agronomical traits.…”

Section: Introductionmentioning

confidence: 99%

Biostimulants, macro and micronutrient fertilizer influence on common bean crop in Vitria da Conquista- Ba, Brazil

Anjos¹,

Vasconcelos²,

Mendes³

et al. 2015

Afr. J. Agric. Res.

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The use of plant biostimulants jointly or without macro or micro fertilization may be an alternative to change plant metabolism and consequently, improve bean crop yield. Under this circumstance, we aim to evaluate the influence of biostimulants and its interaction with macro and micronutrient fertilizers on common bean var. Pérola yield in Bahia State (BA). The research started on 12 December, 2013 in the experimental farm of the State University of Southwestern Bahia (UESB), campus in Vitória da Conquista-BA, Brazil. The experimental design used was the total randomized block with three replications, arranged in a factorial scheme (2x2x4) under two macronutrient fertilization levels (present or absent) and four biostimulants (Control, Stimulate, Booster and Biozyme), in which doses followed manufacturer recommendation for common bean crop. The following traits were assessed: plant height, stem diameter, first pod height, pod number, pod length, grain per plant, 100-grain dry mass and yield. The data was submitted to variance analysis, and means were compared by "F" and Scott Knott tests at 5% probability. We found that biostimulants enhanced common bean yield with or without macro and/ or micronutrient supply.

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Section: Introductionmentioning

confidence: 99%

Biostimulants, macro and micronutrient fertilizer influence on common bean crop in Vitria da Conquista- Ba, Brazil

Anjos¹,

Vasconcelos²,

Mendes³

et al. 2015

Afr. J. Agric. Res.

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Availability of floral resources in yellow passion fruit cultivars

et al. 2018

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The reproductive strategies and resources available in the flower are characteristics that stimulate research studies on the genetic improvement and fruit yield of commercial cultivars. In this sense, this study aimed to study the floral biology aspects of passion fruit cultivars in Tangará da Serra region, Mato Grosso State, Brazil at different evaluation times. The experiment was carried out with eight cultivars of yellow passion fruit from an ex situ germplasm bank of the State University of Mato Grosso. The floral resources (pollen and nectar) were evaluated in a completely randomized, factorial arrangement (8 cultivars x 5 evaluation times), with five replications. Throughout anthesis, the pollen viability, stigma receptivity, and sugar volume and concentration in the nectar were evaluated. The evaluations were carried out in 1-h intervals, between 1:30 and 5:30 p.m. The highest nectar volume production was at 2:30 p.m., decreasing gradually thereafter at the later evaluation times, for all cultivars. Pollen viability increased from the first to the second evaluation time and then decreased gradually until the last evaluation. Stigma receptivity was higher than 90% in all cultivars, at all evaluation times. BRS Rubi do Cerrado and FB 200 were the most promising cultivars for nectar volume and concentration, pollen viability, and stigma receptivity characteristics.

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APLICAÇÃO FOLIAR DE GA3 NO CRESCIMENTO E DESENVOLVIMENTO DE Passiflora edulis Sims f. flavicarpa Degener

et al. 2015

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RESUMO -Com o conhecimento de que a aplicação exógena de giberelinas pode alterar os processos fisiológicos, modificando o crescimento e o desenvolvimento das plantas, visto que funcionam como regulador da divisão e do alongamento das células, objetivou-se com este trabalho avaliar o crescimento e o desenvolvimento de Passiflora edulis Sims f. flavicarpa Degener cultivado sob luminosidade de 650 μmol m -2 s -1 , por nove meses, e submetido a pulverizações semanais com gA 3 . O delineamento experimental foi inteiramente casualizado, com cinco tratamentos (0,0; 1,5; 3,0; 15,0 e 30,0 mg l -1 de gA 3 ) e dez repetições. o substrato utilizado foi constituído por uma mistura (1:1:1, em volume) de areia grossa lavada, moinha de carvão lavado e Latossolo Vermelho distroférrico disposto em vasos com capacidade para 5L. As concentrações de gA 3 influenciaram (p<0,05) na maioria das variáveis analisadas, com exceção do comprimento do caule principal até a inserção do primeiro caule lateral, do número de caules laterais, do número de nós do caule principal até à inserção do primeiro caule lateral, do número de nós do caule principal até a inserção da primeira gavinha e da primeira folha trilobada, do início da floração, do número de caules laterais emitidos pela planta no início da floração e do número de nós da base do caule principal até à inserção do primeiro botão floral. Concentração em torno de 15 mg L -1 propiciou maior comprimento da planta, maior número de nós da planta e maior massa fresca e seca das plantas. A utilização de 30 mg L -1 de gA 3 antecipou a emissão da primeira gavinha e da primeira folha trilobada, e produziu maior número de botões florais. A utilização exógena de gA 3 em concentrações de até 30 mg l -1 foi mais eficaz na indução do que na evocação floral de Passiflora edulis Sims f. flavicarpa Degener. Termos para indexação: Fruticultura, fitorreguladores, maracujá-azedo. GA 3 LEAF APPLICATION ON GROWTH AND DEVELOPMENTOF Passiflora edulis Sims f . flavicarpa Degener ABSTRACT -With the knowledge that the exogenous application of gibberellins can alter physiological processes modifying the growth and development of plants as they function as regulator of cell division and elongation, the aim of this study was to evaluate the growth and development of Passiflora edulis Sims f. flavicarpa Degener grown under light of 650 μmol m -2 s -1 for nine months and subjected to weekly sprays with gA 3 . The experimental design was completely randomized with five treatments (0.0, 1.5, 3.0, 15.0 and 30.0 mg l -1 gA 3 ) and ten repetitions. The substrate used was composed of a mixture (1:1:1 by volume) of washed coarse sand, chaff of washed coal and dystroferric red latosol organized in pots with a capacity of 5L. The concentrations of GA 3 influenced (p<0.05) most of the variables except the length of the main stem to the insertion of the first lateral stem, the number of lateral stems, the number of nodes of the main stem to the insertion of the first stem side, the number of nodes of the main stem to the inserti...

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Regulador vegetal e bioestimulante na indução floral do maracujazeiro-amarelo em condições de entressafra

Cited by 5 publications

References 4 publications

Biostimulants, macro and micronutrient fertilizer influence on common bean crop in Vitria da Conquista- Ba, Brazil

Biostimulants, macro and micronutrient fertilizer influence on common bean crop in Vitria da Conquista- Ba, Brazil

Availability of floral resources in yellow passion fruit cultivars

APLICAÇÃO FOLIAR DE GA3 NO CRESCIMENTO E DESENVOLVIMENTO DE Passiflora edulis Sims f. flavicarpa Degener

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