scholarly journals Substrates and cultivation environments in the production of seedlings of Genipa americana L. (Rubiaceae) seedlings

2020 ◽  
Vol 9 (10) ◽  
pp. e5759107920
Author(s):  
Tatiane Aparecida Curim Faria ◽  
Thayla Morandi Ridolfi de Carvalho Curi ◽  
Tiago Lima do Espírito Santo ◽  
Gustavo Haralampidou da Costa Vieira ◽  
Edilson Costa ◽  
...  
Keyword(s):  
Seedling Growth ◽  
Polyethylene Film ◽  
Seedling Production ◽  
High Quality ◽  
Protected Cultivation ◽  
Cultivation Environment

This study aimed to evaluate genipap seedling formation in different protected environments using different substrates. Five protected cultivation environments (E) were used: E1 - greenhouse without aluminized shade cover under polyethylene film; E2 - greenhouse with aluminized shade cover under polyethylene film; E3 - screened with black shade cover; E4 - screened with aluminized shade cover; and E5 - nursery covered with bacuri coconut straw. In each protected cultivation environment, substrates containing different percentages of earthworm humus (H), vermiculite (V), bovine manure (M) and shredded cassava stems (C) were tested. Seedlings emerged best in environments E2, E3 and E4. Mixtures ¾ H + ¼ V and ¾ H + ¼ C favored growth and yielded high quality seedlings. Environments E3 and E4 provided superior growth, with better- quality and high-quality seedlings. Environments E1 and E5 did not provide adequate seedling growth. Therefore, were not recommended for genipap seedling production using the substrates tested.

scholarly journals Nutrition Affects Pre- and Posttransplant Growth of Impatiens and Petunia Plugs

1999 ◽  
Vol 9 (1) ◽  
pp. 133
Author(s):  
M.W. van Iersel ◽  
P.A. Thomas ◽  
R.B. Beverly ◽  
J.G. Latimer ◽  
H.A. Mills
Keyword(s):  
Nutrient Solution ◽  
Seedling Growth ◽  
Nutrient Composition ◽  
Fertilizer N ◽  
High Quality ◽  
N Nutrition ◽  
N Level ◽  
Shoot Tissue ◽  
N Concentration ◽  
K Fertilizer

Pre- and posttransplant growth of plug seedlings is affected by the nutrition of the plants. The effects of weekly applications of nutrient solution with different N (8-32 mm) or P and K (0.25-1.0 mm) levels on the growth and nutrient composition of impatiens (Impatiens wallerana Hook. f.) and petunia (Petunia ×hybrida hort. Vilm.-Andr.) plug seedlings were quantified. Impatiens and petunia pretransplant seedling growth was most rapid with a \batchmode \documentclass[fleqn,10pt,legalpaper]{article} \usepackage{amssymb} \usepackage{amsfonts} \usepackage{amsmath} \pagestyle{empty} \begin{document} \(\mathrm{NO}_{3}^{1}\) \end{document} concentration of 24 or 32 mm (N at 336 and 448 mg·L-1), while P and K had little effect. Increasing the N concentration in the fertilizer also increased shoot tissue N levels of both impatiens and petunia and decreased shoot P level of impatiens and K level of petunia. Posttransplant growth was most rapid in plants that received N at 16 to 32 mm. Decreasing P and K from 1 to 0.25 mm in the pretransplant fertilizer reduced posttransplant growth. Shoot P level of impatiens 15 d after transplanting decreased from 6.9 to 4.8 mg·g-1 as the pretransplant fertilizer N concentration increased from 8 to 32 mm, while N level increased from 18 to 28 mg·g-1 as P and K fertilizer concentrations increased from 0.25 to 1 mm. Using posttransplant growth as a quantitative norm for plug quality, the sufficiency ranges for tissue N level are 28 to 40 mg·g-1 for impatiens and 30 to 43 mg·g-1 for petunia plugs. These results indicate that fertilization programs for high-quality plug production should focus on N nutrition, and that plugs can be grown with greatly reduced levels of P and K.

scholarly journals SUBSTRATE, LIME, PHOSPHORUS AND TOPDRESS FERTILIZATION IN MACAW PALM SEEDLING PRODUCTION

2016 ◽  
Vol 40 (2) ◽  
pp. 235-244 ◽  
Author(s):  
Leonardo Duarte Pimentel ◽  
Claudio Horst Bruckner ◽  
Candida Elisa Manfio ◽  
Sérgio Yoshimitsu Motoike ◽  
Hermínia Emília Prieto Martinez
Keyword(s):  
Seedling Growth ◽  
Dry Mass ◽  
Biodiesel Production ◽  
Seedling Production ◽  
Single Superphosphate ◽  
Macaw Palm ◽  
Organic Fractions ◽  
Substrate Mixtures ◽  
Growth Trial

ABSTRACT The macaw palm [Acrocomia aculeata (Jacq.) Lood. ex Mart] has been domesticated to subsidize biodiesel production programs in Brazil. However, little is known about the seedling production of this species. This study aimed to evaluate substrate mixtures, limestone and phosphorus rates for substrate amendment and topdressing frequency in macaw palm seedlings. Three trials were conducted in a greenhouse up to six months of nursery cultivation. Trial 1: determination of percent mineral and organic fractions of seven substrate mixtures. Trial 2: evaluation of four limerates for soil amendment versus four phosphorus rates. Trial 3: evaluation of N, K and Mg topdressing frequency. Significant differences were found in the three trials for most of the variables (plant height, leaf number, shoot dry mass, root dry mass, vigor and bulb diameter). The main results obtained were as follow: Trial1 - the best seedling growth was observed in substrates with at least 25% organic matter. Trial2 -lime rates ranging from 0.50 to 1.25 kg associated with 3 to 4 kg of single superphosphate per m3 of substrate provided the best seedling growth. Trial 3 - topdressing fertilization provided better development of seedlings regardless of frequency.

scholarly journals Effects of Different Organic Manures on Early Seedling Growth of Massularia acuminata (G. Don) Bullock Ex Hoyle

2020 ◽  
pp. 41-46
Author(s):  
M. O. Majolagbe ◽  
B. F. Awotedu ◽  
J. M. Ajekigbe ◽  
T. A. Banjo ◽  
A. O. Onifade
Keyword(s):  
Seedling Growth ◽  
Growth Parameters ◽  
Poultry Manure ◽  
Cattle Dung ◽  
Cow Dung ◽  
Seedling Production ◽  
Organic Manures ◽  
Number Of Leaves ◽  
Collar Diameter ◽  
Massularia Acuminata

Aims: Selection of suitable soil amendment is a very crucial attempt for improving seedling production and growth of Massularia acuminata as a forest nursery plants on a sustainable basis can be enhanced over a given period of time. Study Design: Comparative effects of different organic manures on the seedlings growth of Massularia acuminate. Place and Duration of Study: Forestry Research Institute of Nigeria, between February, 2019 and August 2019. Methodology: Various concentrations of different types of organic manures; poultry manure, cow dung and horse dung were mixed with the topsoil separately to raise the seedlings of Massularia acuminata, comparative seedlings height growth, the stem diameter growth and the number of leaves per seedlings were examined to determine the development of the seedlings. Results: The results revealed that, organic manure application generally enhanced the growth of the seedlings, improved seedlings height, number of leaves and collar diameter. Also, with increasing rate of application of organic manures from 0 g to 50 g per seedlings, all seedlings growth parameters were improved. 10 g and 30 g manure had significant effects on plant growth with seedlings height 15.29 cm and 15.10 cm, number of leaves per seedlings (19.80 and 19.43) and collar diameter (6.58 mm and 6.57 mm) with Q2 and Q3 respectively as compared with the control (5.18 mm). Highest seedling growth was observed in poultry application with seedlings height 14.42 cm, number of leaves (19.63) and collar diameter (6.31 mm). Conclusion: The use of poultry manure and cattle dung at increased concentrations of 10 g and  30 g are recommended to be beneficial for sustainable healthy seedling production.

scholarly journals Substrates and Protected Environments in the Formation of Mouriri elliptica Mart Seedlings

2019 ◽  
Vol 11 (6) ◽  
pp. 281
Author(s):  
Josiane S. Salles ◽  
Alexandre H. F. de Lima ◽  
Edilson Costa ◽  
Fábio Steiner ◽  
Bruna L. B. da Silva ◽  
...  
Keyword(s):  
Forest Restoration ◽  
Joint Analysis ◽  
Seedling Production ◽  
Production Environment ◽  
High Quality ◽  
Randomized Design ◽  
Successful Establishment ◽  
Growing Environment ◽  
Completely Randomized Design

The successful establishment of a forest restoration program depends of the seedling quality, and the choice of substrate and growing environment plays a significant role in the production of high-quality seedlings. A study was conducted to evaluate the production of croada seedlings (Mouriri elliptica Mart.) grown in thirteen substrate combinations and subjected to two production nurseries constructed with black shading screen (Sombrite®) and aluminized thermal-reflective screen (Aluminet®). The substrates were prepared from different proportions of bovine manure, soil, vermiculite, and sand. In each protected environment, the thirteen different substrate compositions were arranged in a completely randomized design with five replicates of the five seedlings each. Because there was no replication of the cultivation environments, the joint analysis was carried out, allowing the comparison of the environments in the factorial scheme 2 × 13 (two environments × thirteen substrates). Growth and quality of seedlings were measured at 188 days. Seedling production environment has no effect on the germination and emergence process of the seedlings, but the growth and quality of the seedlings can be improved when grown in the nursery with black shading screen. Substrates containing low proportion of bovine manure (from 10 to 30%) and high proportion of vermiculite (from 30 to 40%) resulted in high-quality croada seedlings.

scholarly journals Bud Chip Method: A Potential In vitro Technology for Bajra-napier Hybrid (Pennisetum glaucum L. X P. purpureum Schum.) for Sett Multiplication

2021 ◽  
Author(s):  
D. Senthilkumar ◽  
A. Paramasivam ◽  
M. Ramachandran
Keyword(s):  
Seedling Growth ◽  
Pennisetum Glaucum ◽  
Growth Parameters ◽  
Farmyard Manure ◽  
High Quality ◽  
Single Node ◽  
Chip Technology ◽  
Short Period ◽  
Red Earth ◽  
Bud Chip

Background: Forages of high quality are the most valuable commodity of any livestock activity and they serve as the basis for most of the rations in a forage-based diet. The lack of good quality seedlings/seeds, notably improved varieties, is the primary reason for the slow adoption of improved forage production technologies. Traditional establishment of bajra napier forage incurs more labour costs, harvesting sett material, transporting, preparing two budded setts and carrying to the planting area. Nearly three to four tons of green leaves stem materials are wasted for planting one hectare of area. In this situation, an alternate method is required to produce high-quality seedlings in a short period. This research objective compared single node bud chip seedling in different protray cell cavities and pot mixtures. Methods: The green shade net field study was carried out between 2019 and 2020, the effect of different pro-tray sizes (50, 60 and 98 cell cavities) and potting mixture (red earth, cocopeat, farmyard manure, vermicompost and root growth promoters like phosphobacteria bio-fertilizer and indole acetic acid (IAA) was taken in different combination for the establishment of Bajra Napier hybrid variety Co (BN)-5 seedling by using single node bud chip technology. The observation was taken up to 30 days in related to seedling growth and development. The observed parameter was statistically analysed in SPSS software. Result: Among the three different protray cavities and five different pot mixtures, 60 cavity protray with red earth + cocopeat + vermicompost (2:1:1) results revealed significant differences (p greater than 0.05) in seedling growth parameters among the different protray and growing media. The maximum seedling growth parameters like germination, numbers of the leaf, plant height, leaf length, width and root length (94.4 per cent, 8.17, 39.12 cm, 38.14 cm, 2.5 cm and 30.8 cm) were observed at 30 days aged seedlings followed by red earth + cocopeat + farmyard manure (2:1:1 ratio) and treated with IAA substance in 60 cavity protray.

scholarly journals Nutrition Affects Pre- and Posttransplant Growth of Impatiens and Petunia Plugs

HortScience ◽  
1998 ◽  
Vol 33 (6) ◽  
pp. 1014-1018 ◽  
Author(s):  
M.W. van Iersel ◽  
P.A. Thomas ◽  
R.B. Beverly ◽  
J.G. Latimer ◽  
H.A. Mills
Keyword(s):  
Nutrient Solution ◽  
Seedling Growth ◽  
Petunia Hybrida ◽  
Fertilizer N ◽  
High Quality ◽  
N Nutrition ◽  
N Level ◽  
Shoot Tissue ◽  
N Concentration ◽  
K Fertilizer

Pre- and posttransplant growth of plug seedlings is affected by the nutrition of the plants. The effects of weekly applications of nutrient solution with different N (8—32 mM) or P and K (0.25—1.0 mM) levels on the growth and nutrient composition of impatiens (Impatiens wallerana Hook. f.) and petunia (Petunia ×hybrida hort. Vilm.-Andr.) plug seedlings were quantified. Impatiens and petunia pretransplant seedling growth was most rapid with a NO3- concentration of 24 or 32 mM (N at 336 and 448 mg·L-1), while P and K had little effect. Increasing the N concentration in the fertilizer also increased shoot tissue N levels of both impatiens and petunia and decreased shoot P level of impatiens and K level of petunia. Posttransplant growth was most rapid in plants that received N at 16 to 32 mM. Decreasing P and K from 1 to 0.25 mM in the pretransplant fertilizer reduced posttransplant growth. Shoot P level of impatiens 15 d after transplanting decreased from 6.9 to 4.8 mg·g-1 as the pretransplant fertilizer N concentration increased from 8 to 32 mM, while N level increased from 18 to 28 mg·g-1 as P and K fertilizer concentrations increased from 0.25 to 1 mM. Using posttransplant growth as a quantitative norm for plug quality, the sufficiency ranges for tissue N level are 28 to 40 mg·g-1 for impatiens and 30 to 43 mg·g-1 for petunia plugs. These results indicate that fertilization programs for high-quality plug production should focus on N nutrition, and that plugs can be grown with greatly reduced levels of P and K.

scholarly journals A Comparative Evaluation of the Physical and Chemical Characteristics of Composted Tea Tree (Melaleuca alternifoliaL.) with Pine Bark Growing Media in Tobacco (Nicotiana tabucumL.) Seedling Production

2016 ◽  
Vol 2016 ◽  
pp. 1-11 ◽  
Author(s):  
Johnson Masaka ◽  
Noel Chimwanda ◽  
Ignatius Chagonda ◽  
Misheck Chandiposha
Keyword(s):  
Seedling Growth ◽  
Smallholder Farmers ◽  
Exchange Capacity ◽  
Pine Bark ◽  
Seedling Production ◽  
Growing Media ◽  
Tea Tree ◽  
Normal Seedling ◽  
The Media ◽  
Increasing Demand

The search for suitable organic growing media substitutes for pine bark based media combinations has been prompted by concerns over high costs and lack of availability to smallholder farmers coupled with increasing demand for soilless media in Zimbabwe. A trial was conducted for 12 weeks to investigate the suitability of tea tree compost-based substrates for tobacco seedling production as a substitute of the traditional pine bark growing media. The use of composted tea tree growing media in float trays significantly (p<0.05) increases the bulk density of the media by 23–59% when compared with pine bark media. The cation exchange capacity of the native pine bark growing media was 14 to 95% lower than that for the composted tea tree media. The use of the composted tea as media for tobacco seedling nursery reduced seed germination by 10–37%, seedling stem height by 4–34%, and seedling stem girth by 6–175%. While the nutrient holding and supplying potential of the growing media in seedling production is important for normal seedling growth, its effect on seedling growth vigor is less important than that exerted by the presence of suitable physical conditions in the media.

scholarly journals Sugar apple seedling production as a function of substrates and slow-release fertilizer

2020 ◽  
Vol 11 ◽  
pp. e3146
Author(s):  
Scheila Antunes Amorim ◽  
Augusto Miguel N. Lima ◽  
Ítalo Herbert Lucena Cavalcante ◽  
Júlio César Ferreira de Melo Júnior ◽  
Dayanne do Nascimento Dias ◽  
...  
Keyword(s):  
Experimental Design ◽  
Sugarcane Bagasse ◽  
Slow Release ◽  
Organic Substrate ◽  
Organic Substrates ◽  
Seedling Production ◽  
Apple Seedling ◽  
High Quality ◽  
Slow Release Fertilizer ◽  
Slow Release Fertilizers

There is still a lack of studies on the effect of slow-release fertilizers and substrates on the production of high-quality sugar apple seedlings. In this context, the present study aimed to evaluate the quality and biomass of sugar apple seedlings grown in organic substrates at doses of slow-release fertilizer. The experimental design was randomized blocks in split-plot scheme, with four replicates and eleven plants per plot. Substrates were evaluated in the plots (fresh sugarcane bagasse; enriched sugarcane bagasse; coconut powder; commercial organic substrate Tropstrato®), whereas the doses of the slow-release fertilizer Osmocote® were evaluated in the subplots (0; 3; 6; 9; 12 and 15 kg m-3 of substrate). Substrates and slow-release fertilizer doses had effect on the formation of sugar apple seedlings. The effect of slow-release fertilizer is influenced by the substrate used in the formation of sugar apple seedlings. The substrate coconut powder showed the best performance for E%, NL and LAI in sugar apple plants, which reinforces its recommendation to be used in seedling production. For the studied conditions, based on the DQI, we recommend coconut powder associated with the slow-release fertilizer dose of 9 kg m-3 to produce sugar apple seedlings.

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