MODELAGEM DE VARIÁVEIS MORFOLÓGICAS EM MUDAS DE Eucalyptus dunnii

Novack, Nilton Sergio; Nicoletti, Marcos Felipe; Navroski, Márcio Carlos

doi:10.5380/rf.v45i4.37454

Cited by 3 publications

(2 citation statements)

References 4 publications

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“…This parameter is influenced by environmental conditions, population density and nutritional status. When evaluated in the field, the stem diameter is considered a reliable feature, since it is easy to be measured and has high correlation to the seedling survival, thus helping to determine the quality of seedlings (Nicoletti et al, 2015). Rudek et al (2013) and Nicoletti et al (2015) studying Eucalyptus sp., observed that the combination of leaf area and stem diameter was a reliable parameter when determining seedling quality.…”

Section: Discussionmentioning

confidence: 99%

“…Among them, the most used are plant height and stem diameter. These parameters are easily measured and they can provide reliable data on seedlings strength and functionality (Nicoletti et al, 2015;Santos et al, 2018). The stem diameter is the most analyzed feature to indicate the seedlings survival capacity in the field (D'avila et al, 2011).…”

Section: Introductionmentioning

confidence: 99%

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Influence of fluorescent Pseudomonas on the growth of Mimosa scabrella seedlings

et al. 2021

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Bracantiga (Mimosa scabrella Benth) is a native leguminous specie from the south of Brazil, with great potential for commercial use. It can be used to recover degraded areas due to their fast growth, high adaptability and root nodule formation capacity. One alternative to reduce fertilization costs of seedlings production, are the plant growth promoting rhizobacteria. The fluorescent group of Pseudomonas is common at several plant rhizosphere. The objective of this work was to assess the growth stimulus of fluorescent Pseudomonas isolates at bracatinga seedlings. The seeds were inoculated with three bacterial isolates (CBSAL14, CBSAL18 and CBSAL05), genetically identified as Pseudomonas sp. They were previously grown in 50 mL of Luria Bertani medium for 48 h and then the seeds were submerged for 30 min in the suspensions. Subsequently, they were sown in tubes containing sterilized commercial substrate and kept in greenhouse for five months. From 61 days after sowing, seedling height and stem diameter were measured monthly. The CBSAL14 and CBSAL18 isolates promoted promoted increase in growth of seedlings height of inoculated individuals compared to control, suggesting their potential use as plant growth promoters.

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Section: Discussionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Influence of fluorescent Pseudomonas on the growth of Mimosa scabrella seedlings

et al. 2021

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Agronomic trait selection and pre-germinative treatments in passion fruit hybrid

2022

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Seed biometry and dormancy overcoming methods should be considered in the passion fruit production chain, in the seedling production stage, because of the different characteristics that condition the seedlings. The objective of this work was to identify and correlate the main biometric characteristics between seeds and seedlings and to select the best pre-germinative treatments in passion fruit hybrids. Seed length, width, thickness and weight were measured, and subsequently subjected to pre-germinative treatments, in a completely randomized design, in a 5 x 2 x 3 (GA 3 concentrations x scarification x hybrids) factorial scheme. In the initial development of the seedlings, the length of the aerial part, the diameter of the stem and the number of leaves were evaluated. Pearson's correlation matrix was estimated between seed and seedling characters and, subsequently, path analysis. The Classification Sum Index was used for the means of the characters under pre-germinative treatment. The best pre-germinative treatment for BRS GA is scarification and soaking in 50 mg of GA 3 , for BRS SC, soaking in 100 mg of GA 3 , and for BRS RC, immersion in 50 mg of GA 3 . Seed morphometric selection is a technique that should be recommended to obtain quality seedlings.

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Regressão com platô na estimação do tamanho ótimo de parcelas em experimentos com mamoeiro em casa de vegetação

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Felizardo

et al. 2020

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A cultura do mamoeiro apresenta grande importância socioeconômica no Brasil, contudo pesquisas com essa frutífera são pouco exploradas. O conhecimento do tamanho ótimo da parcela contribui para a condução de experimentos com maior precisão e consequentemente o aumento da relação de custo/benefício da cultura. Dessa forma, o objetivo deste trabalho foi estimar o tamanho ótimo de parcelas para experimentos em casa de vegetação, com mamoeiro híbrido, utilizando o modelo de regressão segmentado com platô linear, com base em um ensaio de uniformidade com 100 unidades básicas (ub). Foram simulados diversos tamanhos e formas de parcelas, em que cada fruto foi considerado primeiramente como uma unidade básica (parcela) até 50 plantas por unidade básica. Para a estimação do tamanho ótimo de parcela empregou-se o modelo de regressão segmentado com platô linear. Em conclusão, o tamanho de parcela ótimo recomendado foi formado por 12 plantas.

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MODELAGEM DE VARIÁVEIS MORFOLÓGICAS EM MUDAS DE Eucalyptus dunnii

Cited by 3 publications

References 4 publications

Influence of fluorescent Pseudomonas on the growth of Mimosa scabrella seedlings

Influence of fluorescent Pseudomonas on the growth of Mimosa scabrella seedlings

Agronomic trait selection and pre-germinative treatments in passion fruit hybrid

Regressão com platô na estimação do tamanho ótimo de parcelas em experimentos com mamoeiro em casa de vegetação

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