scholarly journals How do clonal plantlets of mate respond to different substrate compositions and shading levels?

2020 ◽  
Vol 36 (6) ◽  
Author(s):  
Nathalia Pimentel ◽  
Mhaiandry Benedetti Rodrigues ◽  
Rejane Flores ◽  
Dilson Antônio Bisognin
Keyword(s):  
Ilex Paraguariensis ◽  
South American ◽  
Soil Composition ◽  
Root Tips ◽  
Shoot Height ◽  
Rice Hulls ◽  
Plantlet Production ◽  
Subsurface Soil ◽  
Number Of Leaves

Mate (Ilex paraguariensis A. St.-Hil) is an arboreal species of great economic and socio-environmental importance in South American countries. This specie presents several difficulties during seminal propagation, and studies related to plantlet production by vegetative propagation are fundamental for obtaining homogenous mate plantations with high leaf productivity. Therefore, the present study aimed to evaluate the effects of substrate and shading levels on the morphophysiological quality of mate plantlets produced by mini-cuttings. Rooted mini-cuttings of four mate clones were cultivated on commercial substrate, subsurface soil and vermiculite (2:1:1 v/v/v), commercial substrate and subsurface soil (2:1 v/v) or subsurface soil, cattle manure and carbonized rice hulls (2:1:1 v/v/v). After 120 days, the plantlets were randomly distributed on benches to evaluate the effects of 50 and 80% shading screens. Regardless of the clone, the commercial substrate and subsurface soil composition allowed plantlet production with satisfactory development of both aerial part and root system at 120 days of cultivation. Clone 06SM17 produced plantlets with high averages of stem diameter, shoot height, number of leaves, total length, surface area, total volume of roots, and number of root tips. Both shade levels resulted in similar stem diameters, shoot heights, numbers of leaves, and a, b, and total chlorophyll indices. Clonal mate plantlets with satisfactory morphophysiological quality are produced in commercial substrate and subsurface soil (2:1 v/v) under 50 and 80% shading.

scholarly journals Desenvolvimento de alpínia sob diferentes telas de sombreamento e espaçamentos de cultivo

2016 ◽  
Vol 22 (2) ◽  
pp. 202
Author(s):  
Roseane Rodrigues De Souza ◽  
Ângela Maria Pereira Nascimento ◽  
Patrícia Duarte de Oliveira Paiva ◽  
Elka Fabiana Aparecida Almeida ◽  
Paulo Roberto Correa Landgraft
Keyword(s):  
Experimental Design ◽  
Morphological Changes ◽  
Index Number ◽  
Spectral Quality ◽  
Initial Development ◽  
Shoot Height ◽  
Number Of Leaves ◽  
Color Shading ◽  
Number Of Shoots

Intensity and spectral quality of the radiation can be manipulated with the use of neutral or color shading screens in growing plants, and it can promote physiological and morphological changes. Therefore, the purpose was evaluating the effects of different shading levels, screens spectral quality, and spacing in the development of cv. Jungle King and cv. Jungle Queen gingers. Rhizomes were planted in 5 cultivation environments (full sun, black screen 50%, black screen 30%, blue screen 50% and red screen 50% shading) and 2 spacing (0.8 x 1.0 m and 0.8 x 1.5 m). The experimental design was completely randomized in a factorial 5x2x2x7, with 5 environments of cultivation, 2 cultivars, 2 spacing between plants and 7 times of evaluation (55, 120, 200, 255, 285, 335 e 370 days after planting (DAP)). The evaluations were shooting index, number of shoots per plant, shoot height and number of leaves per shoot. Shooting of cv. Jungle Queen was earlier compared to cv. Jungle King. Spacing did not influence in the initial development of plants. Screens with 50% shading, in blue or red colors, enhanced alpinia development.

scholarly journals Morphophysiological responses of Ilex paraguariensis seedlings to different substrates and fertilizations

2017 ◽  
Vol 21 (2) ◽  
pp. 111-115 ◽  
Author(s):  
Thairini C. Zavistanovicz ◽  
◽  
Maristela M. Araujo ◽  
Suelen C. Aimi ◽  
Rejane Flores ◽  
...  
Keyword(s):  
Dry Weight ◽  
Ilex Paraguariensis ◽  
Single Superphosphate ◽  
Rice Hulls ◽  
Randomized Design ◽  
Subsurface Soil ◽  
Completely Randomized Design ◽  
Increasing Demand ◽  
Total Dry Weight ◽  
By Products

ABSTRACT The increasing demand for Ilex paraguariensis St. Hill (yerba mate) by-products generated the need for producing a greater quantity of seedlings and improve their quality. Thus, the objective of this work was to evaluate the efficiency of different substrates combined with base fertilization for Ilex paraguariensis seedlings, through morphophysiological parameters. The experiment was conducted in a completely randomized design, in a 5 x 3 factorial arrangement, and the treatments consisted of five substrate formulations combined with two fertilizers, and a control without fertilization, in November 2013. The I. paraguariensis seedlings produced in the substrate consisted of subsurface soil, cattle manure and charred rice hulls (2:2:1) presented the greatest heights (53.36 cm), stem diameter (6.80 mm), leaf area (692.52 cm2), root dry weight (6.2 g) and total dry weight (16.4 g). The efficiency of the different fertilizations used was similar regarding the seedling growth. The physiological parameters did not differ between treatments. The substrate composed of subsurface soil, manure and charred rice hulls (2:2:1) and fertilization with urea (0.7 g L-1) single superphosphate (8.0 g L-1) and potassium chloride (0.4 g L-1) is recommended for producing I. paraguariensis seedlings.

scholarly journals Morphophysiological quality of yerba mate plantlets produced by mini-cuttings

2017 ◽  
Vol 38 (6) ◽  
pp. 3515 ◽  
Author(s):  
Nathalia Pimentel ◽  
Kelen Haygert Lencina ◽  
Marina Favarin Pedroso ◽  
Tamires Manfio Somavilla ◽  
Dilson Antônio Bisognin
Keyword(s):  
Surface Area ◽  
Quality Index ◽  
Stem Diameter ◽  
Pine Bark ◽  
Yerba Mate ◽  
Root Tips ◽  
Shoot Height ◽  
Polyethylene Bags ◽  
Dickson Quality Index

The objective of this study was to evaluate the morphophysiological quality of yerba mate plantlets (Ilex paraguariensis A. St.-Hil.) produced by mini-cutting at four different times of year and cultivated in different containers. For the rooting of mini-cuttings, shoots of four yerba mate clones were collected four times during the year (April, July and October 2014 and January, 2015), cut into single-budded mini-cuttings and planted in equal proportions of pine bark-based commercial substrate, vermiculite and coarse sand. After 60 days of cultivation in a wet chamber, the rooted mini-cuttings were transferred to different containers: a 100 cm³ rigid polyethylene tube container and 500, 1500 and 3000 cm3 polyethylene bags containing pine bark-based commercial substrate and underground soil (2:1 v/v). A completely randomized design was used in a 4 x 4 factorial scheme, with five replications ranging from 5 to 20 mini-cuttings per experimental unit. The plantlets were evaluated for survival percentage, shoot height, stem diameter, shoot height/stem diameter ratio and number of leaves at 30, 60, 90 and 120 days of cultivation. At 120 days of cultivation, 10 plantlets from each treatment were randomly picked to evaluate shoot and root dry mass, Dickson quality index, shoot height, surface area, total volume and number of root tips. The best combinations of shoot height, length, surface area, total volume and number of root tips and Dickson quality index were found in plantlets produced in July, 2014, followed by plantlets produced in October,2014 and January, 2015. The polyethylene bags allowed the production of yerba mate plantlets with satisfactory quality of shoot and roots, regardless of the volume. Yerba mate plantlets can be produced by mini-cutting from July to January in polyethylene bags.

scholarly journals Influência do número de folíolos e nós no enraizamento de estacas semilenhosas de cipó-de-são-joão

2015 ◽  
Vol 21 (3) ◽  
pp. 339
Author(s):  
Marília Milani ◽  
Willian Heintze ◽  
Gilmar Schafer ◽  
Paulo Vitor Dutra De Souza
Keyword(s):  
Experimental Design ◽  
Technical Information ◽  
Dry Weight ◽  
Dry Mass ◽  
Rooted Cuttings ◽  
Rice Hulls ◽  
First Order ◽  
Number Of Leaves ◽  
Pyrostegia Venusta

The flame vine (Pyrostegia venusta (Ker-Gawl.) Miers) is a semihardwood vine, vigorous, native, native, occurring in all Brazilian biomes and ornamental potential. Technical information about the propagation of this species will contribute to the production of seedlings and with that, their greatest use in landscaping. This study aimed to evaluate the influence of the number of leaves and nodes in rooting intermediate flame vine. The experiment was conducted under conditions of intermittent mist. The experimental design was a randomized block in factorial 2 x 3, being respectively cuttings with one or two nodes, and zero, one or two leaflets. We used four replicates with plots consisting of 12 cuttings placed in substrate of rice hulls in polystyrene trays with 72 cells. We evaluated at 84 days the porcentage of rooted cuttings, length of shoots, dry weight of shoots and, per cutting, average: number of roots - first order; maximum length of each root of the first order, volume and dry weight of roots. It was observed that cuttings with two leaflets enabled 66% of rooting, greater length and dry mass of shoots. The higher quality of the root system occurs with stakes with two leaflets and two nodes. The spread of flame vine is efficient with semi-hardwood cuttings with two nodes and two leaflets, kept in a greenhouse under intermittent mist.

Effects of different doses of eugenol on plasma cortisol levels and the quality of fresh and frozen-thawed sperm in South American catfish (Rhamdia quelen)

2019 ◽  
Vol 125 ◽  
pp. 135-139 ◽  
Author(s):  
Maira N. Corso ◽  
Lis S. Marques ◽  
Luis F.G. Gracia ◽  
Rômulo B. Rodrigues ◽  
Leonardo J.G. Barcellos ◽  
...  
Keyword(s):  
Plasma Cortisol ◽  
South American ◽  
Rhamdia Quelen ◽  
Cortisol Levels ◽  
Different Doses

Cysteine supplementation on the quality of cryopreserved sperm of south american catfish

Cryobiology ◽  
2018 ◽  
Vol 85 ◽  
pp. 173 ◽  
Author(s):  
Danilo P. Streit ◽  
Bruna B. da Costa ◽  
Lis S. Marques ◽  
Paula Lassen ◽  
Ana Amélia Fossati ◽  
...  
Keyword(s):  
South American ◽  
Cryopreserved Sperm

scholarly journals Yield performance of strawberry genotypes

2016 ◽  
Vol 41 (3) ◽  
pp. 481-489
Author(s):  
S Chowhan ◽  
MM Hossain ◽  
MA Hoque ◽  
G Rasul ◽  
MS Roni
Keyword(s):  
Climatic Condition ◽  
Growth Yield ◽  
Field Performance ◽  
Fruit Yield ◽  
Flower Initiation ◽  
Yield Performance ◽  
Yield And Quality ◽  
Number Of Leaves

Five strawberry genotypes ('Rabi 3', 'Camarosa', 'BARI Strawberry 1', 'BADC Strawberry' and 'Festival') were evaluated for their field performance. The maximum number of leaves/plant (14.2), canopy spread (31.82 cm) and runners/plant (7.2) were found with 'Camarosa', 'Festival' and 'Rabi 3' respectively. Festival took the lowest number of days to flower initiation (32.5). The highest number of flowers (23.64) and fruits/plant (19.98) were found in 'Camarosa'. The heaviest (21.83 g) and the largest sized individual fruit (1539.31 mm2) were produced by 'Festival'. Fruit TSS (%) was the highest (15.83) in BARI Strawberry 1. Genotype 'Festival' gave the highest fruit yield (12.94 t/ha) and 'BADC Strawberry' yielded the lowest (6.15 t/ha). Considering growth, yield and quality of fruit, genotypes 'Festival' and 'Camarosa' were found promising under the climatic condition of Salna.Bangladesh J. Agril. Res. 41(3): 481-489, September 2016

scholarly journals The effect of NAA and coconut water combination on garlic (Allium sativum L.) tissue culture

2021 ◽  
Vol 905 (1) ◽  
pp. 012036
Author(s):  
Nandariyah ◽  
L S Mahmudah ◽  
R B Arniputri ◽  
A T Sakya
Keyword(s):  
Tissue Culture ◽  
Coconut Water ◽  
Emergence Time ◽  
Shoot Height ◽  
Culture Techniques ◽  
Randomized Design ◽  
Two Factors ◽  
Number Of Leaves ◽  
Tissue Culture Techniques ◽  
Number Of Shoots

Abstract Tissue culture techniques can increase the number of garlic seedlings. The purpose of this research is to determine the effect of NAA and coconut water in increasing the number of garlic seeds. This research used a Completely Randomized Design of two factors. The treatment used is NAA with concentrations of 0 ppm, 0.5 ppm, 1 ppm, 1.5 ppm, and coconut water concentrations of 0%, 10%, 20%. The variables observed were shoot emergence time, root emergence time, number of shoots, number of roots, number of leaves, shoot height, root length, and number of plantlets. The results showed that the addition of coconut water 20% without the addition of NAA in 1 bulb can produce 3.33 planlets and the results of explant propagation in 1 bulb can produce the number of shoots as many as 15.33 shoots. Giving coconut water with concentrations of 10% and 20% can increase the number of leaves, shoot height, and some planlets. The concentration of NAA 0.5 ppm can accelerate the root emergence time on garlic explant.

scholarly journals Growth performance and nutritional quality of selected vegetables in response to organic and inorganic fertilizers under low and high irradiance

2021 ◽  
pp. 17-27
Author(s):  
L. T. Olaokiki ◽  
S. A. Adejumo
Keyword(s):  
Leaf Area ◽  
Open Field ◽  
Nutritional Quality ◽  
Growth Parameters ◽  
Soil Amendments ◽  
Number Of Leaves ◽  
Growing Conditions ◽  
Screen House ◽  
Better Than

Vegetables form major part of human dietary/nutritional needs. It provides the necessary vitamins and minerals as well as antioxidants to boost immunity. Different vegetables however have different benefits and require different growing conditions. This study investigated the effect of two growing conditions (Screen-house and open field) and soil amendments; Mexican sunflower compost (MSC; applied at 0, 5, 10 t/ha) and NPK 15:15:15 (applied at 0, 50 and 100 kg N/ha) on the growth performance, yield, and nutritional quality of five selected vegetables (Amaranthus cruentus, Celosia. argentea, Solanum macrocarpon, Solanum nigrum and Solanum incanum). Each treatment was replicated three times and experiment arranged in completely randomized design, Compost was applied a week before seed sowing vegetables grown in the screen-house generally performed better than the open field in terms of leaf area and chlorophyll content. The response however varied based on the vegetable and the soil amendments. Solanum species, performed better than Amaranthus under screen-house than open field. Chlorophyll in the leaf responded positively to NPK fertilizer under screen-house conditions while growth parameters such as plant height, stem girth, number of leaves under screen-house and field conditions varied depending on the vegetables. The number of leaves and leaf area increased with soil amendments. Moisture, crude protein and ash contents were reduced under open field compared to screen-house. The zinc and iron contents of the vegetable leaves showed that addition of compost was superior to NPK and screen-house better than open field. It can be concluded that vegetables grown in the screen-house performed better in their respective growth parameters than vegetables are grown under the open field.

scholarly journals Effects of drought stress on shoot development of tomato (Solanum lycopersicum L.)

2021 ◽  
Vol 5 (2) ◽  
pp. 1208-1215
Author(s):  
Tuan Minh Nguy ◽  
Thang Thanh Tran ◽  
Huong Thanh Tran
Keyword(s):  
Drought Stress ◽  
Stress Tolerance ◽  
Leaf Area ◽  
Stress Condition ◽  
Carotenoid Content ◽  
Shoot Height ◽  
Drought Stress Tolerance ◽  
Drought Stress Condition ◽  
Number Of Leaves ◽  
Effects Of Drought

In recent years, drought stress was strongly affected on the development and yield of tomatoes. There are increasing interests in the study of physiological transformations in adaption to stress in plants In this study, effects of drought stress (mannitol at different concentration) on the development of tomato shoot were studied. Morphological and physiological changes during the development of shoot under drought stress conditions were analyzed. Based on the analysis results, the combination of cytokinin and gibberellin was treated to increase the drought stress tolerance of plants. Results showed that mannitol at 20 g/L induced tomato drought stress. Shoot height, number of leaves, leaf area, and the number of roots significantly decreased in the drought stress condition compared to the control. The formation superoxide (O2-) and hydrogen peroxide (H2O2) occurred in the meristem, elongation region and cap of the roots in the drought stress condition instead of only cap root in the control. In the drought stress condition, there was an increase in respiration intensity, proline and carotenoid content, and abscisic acid activity. In contrast, the content of chlorophyll, photosynthesis intensity, cytokinin and gibberellin activity decreased in comparison with the control. The combination treatment of zeatin 0.5 mg/L and GA3 0.5 mg/L improved the drought stress tolerance of plants. The shoot height, number of leaves, leaf area and number of roots of the treated plants were higher than those of the control plants.

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