Effects of shading and slow release fertilizer on early growth of Nothofagus leonii seedlings from its northernmost distribution in Central Chile

Santelices, Rómulo; Espinoza, Sergio; Cabrera, Antonio

doi:10.4067/s0717-92002015000200004

Cited by 9 publications

(8 citation statements)

References 21 publications

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“…Cruz et al (2011) affirm that the DQI, as it expresses the quality of the seedlings, considers the robustness and balance of the biomass distribution in the seedling. According to Santelices et al (2015), it depends on several production factors such as sowing time, pre-germination treatments and fertilization. In this work, in addition to the mentioned factors, it is evident that shading and its interaction with slow release fertilizer influence the quality index of seedlings.…”

Section: /10mentioning

confidence: 99%

Shading And Slow Release Fertilizer Effects On The Growth Characteristics Of Assai Seedlings (Euterpe oleracea)

et al. 2019

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The objective of this work was to evaluate the initial growth of assai seedlings (Euterpe oleraceae) in response to shading and slow release fertilizer. The experiment was conducted at Embrapa Acre in a randomized block design using a 4 × 5 factorial scheme with three replicates and 10 plants per plot. The treatments consisted of four shade environments (20%, 30%, 50% and 75%) and five levels of slow release fertilizer (0.0, 2.5, 5.0, 7.5 and 10.0 kg m-3). The following characteristics were evaluated: plant height, number of leaves, stem diameter, leaf dry mass, stem dry mass, root dry mass, total dry mass, and seedlings quality index. The growth of assai seedlings was influenced by shade environment conditions and slow release fertilizer. Shade environment with 30% or 50% and a dose of 8 kg m-3 resulted in better quality seedlings.

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Section: /10mentioning

confidence: 99%

Shading And Slow Release Fertilizer Effects On The Growth Characteristics Of Assai Seedlings (Euterpe oleracea)

et al. 2019

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“…The seedlings raised under 50% shade were significantly shorter, but presented significantly greater RCD, shoot dry mass, root fresh and dry mass (and therefore a greater root:shoot ratio), and number of root tips than those under 70% shading. Santelices et al [36] also reported that Nothofagus leonii seedlings grew more efficiently under 50% shade. Puértolas et al [34], who studied two Mediterranean species with contrasting shade tolerance, found that the quality of the seedlings of Quercus ilex (a shade tolerant species) and P. halepensis (shade intolerant) grown under 60% shade was not affected.…”

Section: Resultsmentioning

confidence: 91%

“…Then, the shoots and the separated roots were dried at 70 °C for 72 h for the dry biomass measurements (accuracy of 0.01 g). The seedlings were subjected to the following treatments: two fertilization regimes with two high doses (5 g and 10 g) [36] of water-soluble fertilizer N:P:K 30:10:10 + micronutrients per liter of substrate (486 mg seedling −1 and 972 mg seedling −1 respectively), and two shading regimes: 50% and 70%. Half the amount of fertilizer was incorporated into the substrate prior to sowing, and the other half was applied by watering during the rapid growth period of the seedlings.…”

Section: Methodsmentioning

confidence: 99%

Fertilization and Shading Trials to Promote Pinus nigra Seedlings’ Nursery Growth under the Climate Change Demands

et al. 2021

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Pinus nigra is one of the most widely used tree species for reforestation within its geographical distribution, as well as being a potential substitute for other tree species in Central Europe under future climate scenarios. P. nigra is transplanted into the field as two-year or three-year old seedlings because of its relatively low growth rate in the nursery. This study investigated the effects of fertilization programs and shading on P. nigra seedlings, aiming to accelerate early growth, and thus to reduce the nursery rearing time. The experiment (a completely randomized block design) was conducted in an open-air nursery by sowing seeds from Grevena, Northern Greece, in Quick pots filled with peat and perlite in a 2:1 ratio. The seedlings were subjected to two levels of fertilization—5 and 10 g L−1 NPK (30-10-10)—and two shading levels: 50% and 70%. At the ends of the first and second nursery growing season, we recorded the seedlings’ above- and below-ground morphology and biomass data. The results show that the application of all of the treatments produced seedlings which met the targeted quality standards for outplanting. However, the combination of a high fertilization rate and low shading level resulted in seedlings of a higher morphological quality, which is often considered to be an indicator for a successful seedling establishment in the field.

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“…Biomass allocation in every Barberis darwinii organ during nursery phases differs in different shading condition [11]. Centtela asantica has the highest biomass in 30% shade; however, it total chlorophyll is the highest in 70% shade [12,13]. In Balanites aegyptiaca, on the contrary, growth environment with at different intensities of 25%-100% has no influence on leaf area during initial growth [2].…”

Section: Introductionmentioning

confidence: 99%

The Change in Growth Phase of Luja Plants (Peristrhophe bivalvis Merrill) Due to Differences in Light Intensities and Stem Cuttings

Melati¹,

Aini²,

Sabban³

2020

Proceedings of the 5th International Conference on Food, Agriculture and Natural Resources (FANRes 2019)

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The change in every phase of plant growth can be seen from the growth of plant organ every week. Cutting materials used can influence the growth phase in different light environmental conditions. The research aimed to find out light intensities and part of stem cuttings influencing the change in growth phase of Luja plants. Light intensities treatment consisted of 100%, 65%, 35%, and 15% and planting materials consisted of basal and tip cuttings; therefore, there were 8 treatment combinations with three repetitions. Design model used was split plot design and continued with Duncan test that analyzed using SAS 9.3 program. The research results indicated that there was an interaction between light intensities and cuttings on variables of number of leaves and leaf area. The influence of light intensities and cuttings, individually, was indicated on variables of number of leaves, number of branches, canopy diameter and leaf area. The light intensity of 35% was a good growth environment condition for Luja plant; whereas the good cutting was tip cutting thus Luja is considered as a canopy-tolerant plant.

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Effects of shading and slow release fertilizer on early growth of Nothofagus leonii seedlings from its northernmost distribution in Central Chile

Cited by 9 publications

References 21 publications

Shading And Slow Release Fertilizer Effects On The Growth Characteristics Of Assai Seedlings (Euterpe oleracea)

Shading And Slow Release Fertilizer Effects On The Growth Characteristics Of Assai Seedlings (Euterpe oleracea)

Fertilization and Shading Trials to Promote Pinus nigra Seedlings’ Nursery Growth under the Climate Change Demands

The Change in Growth Phase of Luja Plants (Peristrhophe bivalvis Merrill) Due to Differences in Light Intensities and Stem Cuttings

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