Temperatura base, plastocrono e número final de nós no malmequer-do-campo

Fagundes, Joelma Dutra; Streck, Nereu Augusto; Storck, Lindolfo; Reiniger, Lia Rejane Silveira; Kruse, Nelson Diehl

doi:10.1590/s0103-84782008005000021

Cited by 5 publications

(8 citation statements)

References 17 publications

Supporting

Mentioning

Contrasting

Unclassified

Order By: Relevance

“…A more realistic time measurement from the biological point of view is the thermal time, with unit on °C day (Streck et al, 2008;Fagundes et al, 2008).There is a close relationship between temperature and vegetative growth, interfering temperature on factors such as the growth speed and differentiation of organs. The production of great quality plants is affected by radiant energy (commonly referred as light) and temperature (thermal energy) where thermal energy is the main environmental factor that promotes vegetative development (Liu & Heins, 2002).…”

Section: Introductionmentioning

confidence: 99%

Plastochron estimate in grapevine 'Marselan' and 'Tannat' cultivars

et al. 2016

View full text Add to dashboard Cite

Plastochron safe estimates contribute for modeling improvement of grapevine development and allow identifying the phenological behavior of culture, to check the adjustment, to set more appropriate management practices and to assist in agricultural zoning culture. Thus, the aim of this study was to estimate the plastochron in Marselan and Tannat grapevine cultivars in the region of the Border West of Rio Grande do Sul. The experiment was conducted in grapevine orchard with Marselan and Tannat cultivars in the municipality of Itaqui-RS in 2010, between September and December. The plastochron was estimated by the inverse of slope of the linear regression between the number of visible nodes by branches and thermal time (base temperature of 10 °C). For Marselan and Tannat grapevine cultivars can be used plastochron value of approximately 56.25 ºC day node-1 .

show abstract

Section: Introductionmentioning

confidence: 99%

Plastochron estimate in grapevine 'Marselan' and 'Tannat' cultivars

et al. 2016

View full text Add to dashboard Cite

show abstract

“…Um exemplo de parâmetro de desenvolvimento vegetal é o número de nós acumulados (NN) na haste principal (FAGUNDES et al, 2008). Em leguminosas e algumas outras espécies como o crambe, em que cada nó origina uma folha, essa medida de desenvolvimento está relacionada com a expansão da área foliar, a qual tem relação com: a interceptação da radiação solar pelo dossel vegetal, a fotossíntese, o acúmulo de biomassa e a produtividade das culturas (XUE et al, 2004;DELLAI et al, 2005;STRECK et al, 2005;MARTINS et al, 2007).…”

Section: Introductionunclassified

Estimativa de plastocrono em crambe

et al. 2010

Self Cite

View full text Add to dashboard Cite

show abstract

“…Therefore, the development of nodes in China pink is affected by air temperature which is also reported for other ornamental species, such as chrysanthemum (Streck, 2004), lily (Schuh et al, 2005), marigold (Koefender et al, 2008), and curlycup gumweed (Fagundes et al, 2008). Therefore, the linearity between NN and ATS indicates the estimation of plastochron by simple linear regression as an adequate methodology.…”

Section: Resultsmentioning

confidence: 75%

“…One of the causes of variation in plastochron is the mineral nutrition, especially nitrogen, since this nutrient increases the emission rate of new nodes (Toebe et al, 2010) and leaves (Fagundes et al, 2008). The greater speed of node emission on the main stem of plants in Substrate 6 can be explained by the greater N availability and confirmed by the highest N content of in the shoots of these plants (Table 3).…”

Section: Resultsmentioning

confidence: 99%

Growth, Plastochron, and the Final Number of Nodes of China Pink Seedlings Grown on Different Substrates

et al. 2017

Self Cite

View full text Add to dashboard Cite

RESUMOThe objective of this work was to plot the growth curves and determine the plastochron and the final number of nodes of China pink seedlings grown on different substrates. Thus, 392 China pink seedlings were grown on seven substrates under greenhouse conditions, in Santa Maria in the state of Rio Grande do Sul, Brazil. The growth curves were plotted using the logistic model. The plastochron was estimated by the inverse of the angular coefficient of the simple linear regression between the number of accumulated nodes and accumulated thermal sum from the subsampling of the seedlings. In all substrates, the logistic model fit better for the variable number of leaves than for the plant height. The plants in substrates with 50% of soil plus 50% of rice husk ash, and 80% of rice husk ash plus 20% earthworm humus had the longest cycles with 74 and 65 days, respectively. They completed the cycles with a thermal sum of 1317.9 ºC day for number of leaves and plant height. The growth curves that were plotted by the logistic model and the plastochron of the China pink seedlings are dependent on the type of substrate used. The commercial substrate Mecplant ® had the best results. The average final number of nodes of the main stem of the plants was 14 for all substrates.

show abstract

Temperatura base, plastocrono e número final de nós no malmequer-do-campo

Cited by 5 publications

References 17 publications

Plastochron estimate in grapevine 'Marselan' and 'Tannat' cultivars

Plastochron estimate in grapevine 'Marselan' and 'Tannat' cultivars

Estimativa de plastocrono em crambe

Growth, Plastochron, and the Final Number of Nodes of China Pink Seedlings Grown on Different Substrates

Contact Info

Product

Resources

About