Potencial produtivo e qualidade de frutos de macieiras tratadas com giberelina e inibidor da biossíntese de giberelinas

Silveira, João Paulo Generoso; Amarante, Cassandro Vidal Talamini do; Steffens, Cristiano André; Corrêa, Thais Roseli; Paes, Francielle Neto

doi:10.1590/0100-2945-352/13

Cited by 5 publications

(3 citation statements)

References 23 publications

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“…In the experiments 2 and 3, after the treatment with essential oils, noninfected fruit were stored for five months under refrigeration, followed by seven days storage at room temperature. After this period, pulp firmness, soluble solids (SS), titratable acidity (AT), and background color of the epidermis (L = brightness, C = color, and h o = hue angle hue) were evaluated according to the methodology described by Silveira et al (2014).…”

Section: Methodsmentioning

confidence: 99%

Essential oils for the postharvest control of blue mold and quality of 'Fuji' apples

Vieira

Steffens

Argenta

et al. 2018

Pesq. agropec. bras.

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The objective of this work was to evaluate the effect of rosemary, cinnamon, citronella grass, and clove essential oils on the in vitro growth of Penicillium expansum, on the diameter of blue mold lesions, and on the physical and chemical attributes of 'Fuji' apples stored under refrigeration for different periods of time. The compositions of the essential oils were determined, and their effects on the growth inhibition, number, and viability of fungal spores in vitro were evaluated at 0, 100, and 1,000 μL L-1 oil concentrations. At postharvest, evaluations were performed for fruit treated with 0, 50, 100, and 500 μL L-1 essential oil and kept under refrigeration for 30 days, and for fruit treated with 0, 100, and 500 μL L-1 oil and kept under refrigeration for two days. The essential oils - eucalyptol (rosemary), eugenol (cinnamon), citronellal (citronella), and eugenol (clove) - reduce the growth, number, and viability of P. expansum spores 24 hours after the induction to germination, as well as the diameter of blue mold lesions in apples, except for citronella oil at 500 μL L-1 after 30 days of cold storage. There are no changes in the physicochemical attributes of apples, treated with different concentrations of the oils after refrigeration for five months, followed by seven days at room temperature.

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Section: Methodsmentioning

confidence: 99%

Essential oils for the postharvest control of blue mold and quality of 'Fuji' apples

Vieira

Steffens

Argenta

et al. 2018

Pesq. agropec. bras.

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“…enquanto o maracujazeiro aumentou o número de botões florais em decorrência da aplicação de GA 3 , Silveira et al (2014) constataram redução da floração em macieiras, das cultivares Catarina e Fujii, após serem tratadas com gA 3, e atribuem esses resultados ao maior aporte de fotoassimilados em gemas vegetativas que se desenvolvem mais rapidamente, com consequente redução da floração.…”

Section: Resultados E Discussõesunclassified

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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“…Increased force production was frequent due to a reduction in vegetative growth. Recent studies, for example, have indicated that spraying apple trees with gibberellin biosynthesis inhibitor can reduce vegetative growth and improve fruit quality [32]. Its application before the harvest regulator prohexadione-calcium growth (ProCa) reduces vegetative growth and the competition between branches and fruits by available photoassimilates can generate a greater quantity and quality of fruit [33].…”

Section: Fig 1 Plant Height Of Eggplants Submitted To Different Treatments Of Fertilisation As a Function Of Timementioning

confidence: 99%

The Effects of a Biofertilizer Containing Growth-Promoting Bacteria on the Eggplant (Solanum melongena L.)

Guedes¹,

Oliveira²,

Santos³

et al. 2018

JEAI

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The use of organic fertilisers in vegetable cultivation is important in the pursuit of increased production to improve the physical, chemical and biological characteristics of the soil, to promote plant growth, and to achieve economically viable productivity for farmers of small-and mediumsized farms. This study aimed to evaluate the development and productivity of eggplant after its fertilisation with a biofertiliser that was composed of sugar and alcohol waste and a bacteria growth promoter for plants. The Ciça genotype of eggplant plants werewas distributed in 20 pots with a Original Research Article capacity of 10 L for each pot. The experiment was conducted using a completely randomised design with four treatments and five repetitions. The following treatments were analysed: control (without any fertiliser), chemical fertiliser (NPK), manure and biofertiliser. The analysed parameters included height, stem diameter, weight and number of fruit. The treatments that received some type of fertiliser (chemical or organic) showed higher plant height, and the 'bio-fertiliser' treatment showed better results than the remaining treatments for all parameters. The results for growth in height, stem diameter and number of fruit demonstrated that eggplant adequately responded to fertilisation with biofertiliser in the experimental conditions and about the assessed conventional fertilisers.

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Potencial produtivo e qualidade de frutos de macieiras tratadas com giberelina e inibidor da biossíntese de giberelinas

Cited by 5 publications

References 23 publications

Essential oils for the postharvest control of blue mold and quality of 'Fuji' apples

Essential oils for the postharvest control of blue mold and quality of 'Fuji' apples

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

The Effects of a Biofertilizer Containing Growth-Promoting Bacteria on the Eggplant (Solanum melongena L.)

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