Initial growth of Jatropha curcas plants subjected to drought stress and silicon (Si) fertilization

Anjos, Rosane Angélica Reis dos; Santos, Lilian Cristina da Silva; Oliveira, Diego Braga de; Amaro, Camila Lariane; Rios, Jovan Martins; Rocha, Gabriela Teodoro; Melo, Bruno Silva; Matos, Fábio Santos

doi:10.21475/ajcs.17.11.04.377

Cited by 4 publications

(5 citation statements)

References 13 publications

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“…4B). The water supply under reduced conditions may promote limitations to the stomatal activity and to the photosynthetic apparatus, resulting in the decline of the partitioning and accumulation of biomass by the plant [30].…”

Section: Resultsmentioning

confidence: 99%

Fluorescence and Growth of Eggplant under Irrigation Levels and Silicon Doses

Fátima

Nóbrega

Carreiro

et al. 2019

JEAI

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Aims: The study was conducted to evaluate the fluorescence and growth of eggplant under influence of water deficit and silicon doses. Study Design: The design was a randomized complete block design, in a 5 x 2 factorial arrangement, with four replications and one plant per plot, totaling 40 experimental units. Length and Place of Study: The research was implemented between September and November 2016, in a greenhouse of the Center of Science and Technology Agrifood, at the Federal University of Campina Grande (UFCG / CCTA), Campus of Pombal-PB, Brazil. Methods: Doses of 0, 75, 150, 225 and 300 mg L-1 of silicon and the irrigation slides of 50 and 100% of real evapotranspiration - ETr were used, which were obtained by weighing the pots daily in order to keep the weight close to the field capacity. Results: The use of 50% level of the ETr provides reductions of 5.58; 7.92 and 6.84% of fluorescence in the initial, maximum and quantum yield of the photosystem. The fresh and dry mass of the stem presented the maximum productivity (140.8 and 48.1 g) in the plants irrigated with 100% Etr and treated with doses of 106 and 110 mg L-1 of Si. Conclusion: The fluorescence and biomass of the eggplant plants is reduced with the decrease in irrigation level; while the application of silicon does not result in increment in the fluorescence and dry mass of the leaf. The 100% irrigation level of the ETr associated with the application of 108 mg L-1 of silicon resulted in the best results in stem mass accumulation.

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Section: Resultsmentioning

confidence: 99%

Fluorescence and Growth of Eggplant under Irrigation Levels and Silicon Doses

Fátima

Nóbrega

Carreiro

et al. 2019

JEAI

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“…A complete randomized block design was used in a 2 x 2 factorial design with two Si levels, 0 and 1 g L -1 ,in four leaf applications at 157, 164, 171 and 178 days after emergence (DAE) at a volume of 30 ml/plant/application and irrigation with water at two electrical conductivity levels, 0 and 2.5 dS m -1 , from 150 to 181 DAE and six replications. The volume of irrigation to be applied was determined based on the difference in weight of the pots following recommendations by Dos Anjos et al (2017). Maximum uniformity was attempted during the Si application, by spraying the leaf area, preventing run-off and any product loss.…”

Section: Experimental Designmentioning

confidence: 99%

“…The pots were then weighed at 12:00 o´clock (mass 01) and again 24 hours afterwards (mass 02). The total transpiration was estimated based on the difference between mass 01 and mass 02 (Dos Anjos et al, 2017).…”

Section: Physiological and Nutritional Variablesmentioning

confidence: 99%

Eucalyptus urocam plant tolerance to salinity in response to silicon-based fertilization

et al. 2021

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As barreiras ambientais para expansão da área plantada incrementam a necessidade de desenvolvimento de tecnologias de cultivo em regiões inaptas com água salina de baixa qualidade. O presente trabalho teve como objetivo identificar os efeitos da adubação silicatada na tolerância de plantas de eucalipto a salinidade. O experimento seguiu o delineamento inteiramente casualizado em arranjo fatorial 2x2 com dois níveis de Si, 0 e 1 g L-1, em quatro aplicações foliares aos 157, 164, 171 e 178 dias após a emergência (DAE) em volume de 30 ml/planta/aplicação e irrigação com água em dois níveis de condutividade elétrica iguais a: 0 e 2,5 dS m-1 dos 150 aos 181 DAE e seis repetições. A adubação silicatada minimizou a absorção de sódio em plantas de Eucalyptus urocam irrigadas com água salina, mas não influenciou a entrada de cloro na planta. O vigoroso crescimento vegetativo, ausência de deficiência nutricional e desbalanço na absorção de potássio é indicativo de mediana tolerância de plantas de Eucalyptus urocam a salinidade com água de condutividade elétrica igual a 2,5 dS m-1.

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“…Next, the pot (and bag) was weighed at 12 pm (weight 1) and then again 24 hours later (weight 2). Total transpiration was estimated based on the difference between weight 1 and 2 (Dos Anjos et al, 2017). In order to calculate relative water content, ten 14mm-wide leaf discs were collected, weighed and immersed in distilled water for 8 h in Petri dishes.…”

Section: Variablesmentioning

confidence: 99%

Growth of Eucalyptus urocam Under Different Irrigation Managements

Oliveira¹,

Marques²,

Santos³

et al. 2019

JAS

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The objective of the present study was to evaluate the effects of different water irrigation managements on the growth of Eucalyptus urocam plants. The experiment was conducted in a greenhouse at the Goiás State University, Ipameri campus, Brazil, using 100-day-old Eucalyptus urocam seedlings, which were transplanted into pots with 5 kg of substrate. A completely randomized experimental design with five replications was used, in a 2 × 4 factorial arrangement consisting of two daily irrigation depths (50%, and 100% of the substrate retention capacity) and four irrigation times (7:30 a.m., 11:30 a.m., 4:30 p.m., and 7:00 p.m.). The treatments were applied when the plants were 120 days old, and last 18 days, then, the variables were analyzed. E. urocam plants subjected to water deficit had high stomatal sensitivity, reduced transpiration rate, and maintained hydration, which are characteristics of isohydric plants. E. urocam plants irrigated at 4:30 p.m. or 7:00 p.m. presented low stomatal sensitivity and high biomass accumulation potential. Therefore, irrigations between 4:30 p.m. and 7:00 p.m. are recommended for Eucalyptus urocam plants at the initial growth stage.

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Initial growth of Jatropha curcas plants subjected to drought stress and silicon (Si) fertilization

Cited by 4 publications

References 13 publications

Fluorescence and Growth of Eggplant under Irrigation Levels and Silicon Doses

Fluorescence and Growth of Eggplant under Irrigation Levels and Silicon Doses

Eucalyptus urocam plant tolerance to salinity in response to silicon-based fertilization

Growth of Eucalyptus urocam Under Different Irrigation Managements

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