QUALITY OF CAMBUCI PEPPER SEEDLINGS IN RESPONSE TO THE APPLICATION OF NUTRIENT SOLUTIONS

One of the main stages in the production system of a crop is the production of quality seedlings since it influences the plants' final performance in the field and their production. The study aimed to evaluate different nutrient solutions in the production of Cambuci pepper seedlings. The design used was a complete randomized design, with six treatments corresponding to the nutrient solutions proposed for the pepper crop by Castellane and Araújo, Claudio Roberto, Hoagland, and Arnon, besides the commercial products Plenan® and Biobokashi®, and a control treatment without fertilization, with six replications. The final evaluation was carried out 45 days after sowing. The following variables were analyzed: stem diameter, plant height, leaf dry matter, shoot dry matter, the number of leaves, relative chlorophyll index ("Spad"), and Dickson quality index. The seedlings subjected to the applications of Claudio Roberto and Hoagland and Arnon solutions have the highest heights and number of leaves, the largest stem diameter, shoot dry matter, leaf area, and Dickson quality index with 2.60 and 2.51 mm, 0.54 and 0.62 g, 38.64 and 41.91 cm2, and 0.107; 0.097, respectively. The Hoagland and Arnon nutrient solution provided the best characteristics to produce Cambuci pepper seedlings.

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Growth and quality of mangosteen seedlings (Garcinia mangostana L.) in response to the application of humic acids

Revista Brasileira de Fruticultura ◽

10.1590/0100-29452019104 ◽

2019 ◽

Vol 41 (1) ◽

Cited By ~ 1

Author(s):

Gedeon Almeida Gomes Júnior ◽

Rafaela Alves Pereira ◽

George Andrade Sodré ◽

Eduardo Gross

Keyword(s):

Humic Acids ◽

Quality Index ◽

Dry Matter ◽

Growth Promoter ◽

Seedling Production ◽

Garcinia Mangostana ◽

Number Of Leaves ◽

The One ◽

Dickson Quality Index

Abstract The time of formation of mangosteen seedlings propagated by seeds can be considered as the biggest difficulty in the seedling production system of this species. Considering that the use of humic acids as a growth promoter has been well documented in some species, the objective of this work was to evaluate the growth of mangosteen seedlings in response to the application of humic acid (HA) doses extracted from vermicompost (0; 2; 20; 40; 200 mg C L-1). Growth rate was determined using the following variables: stem diameter, plant height, number of leaves, leaf area, stem dry matter, leaf dry matter, shoot dry matter, root dry matter, total dry matter and Dickson quality index . The dose 150 mg C L-1 was the one that approached the maximum values and therefore should be recommended for the production of seedlings. The results at 240 days after planting (DAP) showed that the HA increased the growth of mangosteen seedlings, helping to reduce the time of seedling formation under conditions for permanent planting.

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Nitrogen fertilization in the production of seedlings of Talisia esculenta (A. St. Hil) Radlk

Revista Brasileira de Engenharia Agrícola e Ambiental ◽

10.1590/1807-1929/agriambi.v21n7p443-447 ◽

2017 ◽

Vol 21 (7) ◽

pp. 443-447 ◽

Cited By ~ 1

Author(s):

Mauro da S. Tosta ◽

João P. N. de Almeida ◽

Glêidson B. de Góes ◽

Priscilla de A. Freire ◽

Vander Mendonça

Keyword(s):

Experimental Design ◽

Nitrogen Fertilization ◽

Quality Index ◽

Dry Matter ◽

Shoot Length ◽

Stem Diameter ◽

N Source ◽

Number Of Leaves ◽

Non Destructive ◽

Dickson Quality Index

ABSTRACT ‘Pitombeira’ does not have organized cultivation, thus requiring information related to the production of seedlings, particularly in relation to chemical fertilizer. In this context, an experiment was conducted in order to define the best dose of nitrogen (N), using urea as N source, to be applied in ‘pitombeira’ seedlings. The experimental design was complete randomized blocks with four replicates and ten plants per plot, testing five N doses (0, 400, 800, 1.600 and 3.200 mg dm-3). Data were submitted to analysis of variance and regression. The non-destructive measurements (number of leaves, stem diameter, shoot length and the ratio between shoot length and stem diameter) were evaluated at 30, 60, 90 and 120 days after transplanting (DAT). In addition, shoot, root and total dry matter and Dickson quality index were determined at 120 DAT. Nitrogen fertilizations, from the dose of 500 mg N dm-3 as top-dressing, were those that led to the most vigorous ‘pitombeira’ plants, while plants developed with dose above 1.600 mg of N dm-3 showed a reduction in their vigor.

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QUALITY OF CUCUMBER SEEDLINGS GROWN IN DIFFERENT CONTAINERS

JOURNAL OF NEOTROPICAL AGRICULTURE ◽

10.32404/rean.v3i1.820 ◽

2016 ◽

Vol 3 (1) ◽

pp. 33-38

Author(s):

Bruna Finotii Fonseca Reis de Mello ◽

Mateus Vieira Trevisan ◽

Fábio Steiner

Keyword(s):

Quality Index ◽

Dry Matter ◽

Vegetable Production ◽

High Quality ◽

Cucumis Sativus L ◽

Cucumber Seedlings ◽

Key Factor ◽

Design Characteristics ◽

Dickson Quality Index

The use of high quality seedlings is a key factor for the success of vegetable production, and the container size and design characteristics of the containers are important determinants of seedling quality. A experiment was conducted to investigate the effects of different container types on quality of cucumber seedlings (Cucumis sativus L., cv. Aodai Melhorado). Seedlings were grown in a seedling nursery with shadow protection at 50% in different containers: (i) 128-cell trays; (ii) 64-cell trays; (iii) tubes of 120 cm3; and (iv) plastic cups of 180 cm3. The plant height, diameter, root length, shoot dry matter, root dry matter, sturdiness quotient (SQ), shoot:root dry matter ratio (SRR) and Dickson quality index (DQI) were measured at 21st days after sowing. The production of cucumber seedlings in 64-cell trays, polypropylene tubes of 120 cm3 and plastic cups of 180 cm3 resulted in the highest values for the majority of investigated traits. The tray of 128-cells results in lower quality cucumber seedlings compared to other containers. Tubes with volume of 120 cm3 and plastic cups with volume of 180 cm3 are more appropriate containers for the production of high quality cucumber seedlings. The DQI is a good indicator of the standard of quality of cucumber seedlings.

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Agricultural residues as substrates in the production of formosa papaya, okra and zucchini seedlings

Bioscience Journal ◽

10.14393/bj-v36n6a2020-55378 ◽

2020 ◽

Vol 36 (6) ◽

Author(s):

Paola Lo Monaco ◽

Larissa Ionara Silva Paula ◽

Paola Honorato Salla ◽

Ismail Ramalho Haddade ◽

Gustavo Haddad Souza Vieira ◽

...

Keyword(s):

Root Length ◽

Quality Index ◽

Dry Mass ◽

High Potential ◽

Grape Pomace ◽

Alternative Substrate ◽

Randomized Design ◽

Number Of Leaves ◽

Organic Compost ◽

Dickson Quality Index

Using residues generated in agriculture to produce seedlingsis an economically interesting alternative, besides being a way to reduce the environmental impacts caused by their inadequate disposal. This study aimed to evaluate the potential of using coffee chaff (CC) and organic compost (OC) as substrate components for the production of Formosa papaya seedlings and the potential of grape pomace (GP), a vitiviniculture residue, in the composition of substrates for the production of okra and zucchini seedlings. We carried out two trials in a completely randomized design (CRD): the first had seven treatments and six replicates: T0: 100% commercial substrate Bioplant® (CS); from T1 to T6: increasing proportions of CC and decreasing of CC: 10/90; 20/80; 30/70; 40/60; 50/50 e 60/40%. The second had six treatments and six replicates, with increasing proportions of GP and decreasing proportions of CS: 0/100; 10/90; 20/80; 30/70; 40/60 and 50/50%.In the first trial we evaluated the number of leaves, root length, seedling height, stem diameter, shoot dry mass, root dry mass, total dry mass and Dickson Quality Index (DQI) at 59 days after sowing.The second trialwas performed at 12 and 18 DAS and we analyzed the number of leaves, plant height, root length, collar diameter, shoot dry mass, root dry mass, total dry mass and Dickson Quality Index (DQI). Variables that met the assumptions of normality and homoscedasticity were subjected to Dunnett’s test. The substrate composed of coffee chaff and organic compost has a high potential to be used as an alternative substrate due to promote better quality of papaya seedlings compared to the commercial substrate. Alternative substrate containing 60% coffee chaff and 40% organic compost is recommended for the production of Formosa papaya seedlings in tubes. The grape pomace (GP) has a high potential to be used as component in substrate for the production of okra and zucchini seedlings compared to the commercial substrate (CS) only. Alternative substrate composed of 50% GP and 50% CS is recommended for the production of zucchini seedlings, while substrate composed of 10% GP and 90% CS is recommended for the production of okra seedlings.

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INTERACTIONS OF BIOCHAR AND ORGANIC COMPOUND FOR SEEDLINGS PRODUCTION OF Magonia pubescens A. St.-Hil.

Revista Árvore ◽

10.1590/0100-67622015000400007 ◽

2015 ◽

Vol 39 (4) ◽

pp. 655-661 ◽

Cited By ~ 1

Author(s):

Stefany Lorrayny Lima ◽

Suelen Tamiozzo ◽

Edwin Camacho Palomino ◽

Fabiano André Petter ◽

Ben Hur Marimon-Junior

Keyword(s):

Organic Compound ◽

Quality Index ◽

The State ◽

Cattle Manure ◽

State University ◽

Mato Grosso ◽

Randomized Design ◽

Completely Randomized Design ◽

Dickson Quality Index

ABSTRACTThe objective of this study was to test the hypothesis that biochar, applied with cattle manure, promotes better development of seedlings of Magonia pubescens St. Hil. The experiment was conducted at the State University of Mato Grosso, Nova Xavantina, Brazil, in 2011. We used a completely randomized design, with twelve treatments and three replications. The substrates formed by the higher levels of cattle manure plus biochar (30%) provided better results of height, diameter and aerial biomass. However, the Dickson Quality Index has not confirmed the quality of seedlings in these treatments. We also observed that the doses of biochar (20 and 30%) when added separately to the Latosol, are not efficient for the growth improvement of the seedlings. Based on the present results, we validate the hypothesis that substrates formed with a mixture of cattle manure and biochar are effective to improve the production of seedlings of M. pubescens.

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Growth of papaya seedlings on substrate consisting of poultry litter biochar

Semina Ciências Agrárias ◽

10.5433/1679-0359.2021v42n6supl2p3721 ◽

2021 ◽

Vol 42 (6supl2) ◽

pp. 3721-3740

Author(s):

Laysa Gabryella de Souza Laurentino ◽

◽

Lucia Helena Garófalo Chaves ◽

Antônio Ramos Cavalcante ◽

Jean Pereira Guimarães ◽

...

Keyword(s):

Root System ◽

Crop Yield ◽

Quality Index ◽

Poultry Litter ◽

Randomized Design ◽

Dry Biomass ◽

Number Of Leaves ◽

Poultry Litter Biochar ◽

Completely Randomized Design ◽

Dickson Quality Index

The choice of a substrate that meets the nutritional and physical demands of papaya seedlings with the use of organic wastes is directly linked to increases in crop yield and is an important environmental and economic alternative. Aiming to produce good-quality papaya seedlings while considering the composition and availability of substrates, this study examined the influence of applying increasing rates of poultry litter biochar as a substrate component in the production of papaya seedlings. The study was developed in a protected environment belonging to the Federal University of Campina Grande (UFCG). The experiment was laid out in a completely randomized design with a 6 × 2 factorial arrangement consisting of six rates of biochar (4, 8, 12, 16 and 20 t ha-1 and the control) and two papaya cultivars (Formosa and Ouro), with four replicates. Plant height, stem diameter, number of leaves and leaf area were evaluated 90 days after sowing. The fresh and dry biomass of shoots and root system and the Dickson Quality Index were also evaluated. In conclusion, the rates that provided good development of papaya seedlings were 8 and 16 t ha-1, and papaya cultivar Ouro showed better growth results.

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EFFECT OF PHOSPHATE FERTILIZATION AND BASE SATURATION OF SUBSTRATE ON THE SEEDLINGS GROWTH AND QUALITY OF Plathymenia foliolosa Benth.

Revista Árvore ◽

10.1590/1806-90882017000100011 ◽

2017 ◽

Vol 41 (1) ◽

Cited By ~ 1

Author(s):

Eliane Cristina Sampaio de Freitas ◽

Haroldo Nogueira de Paiva ◽

Helio Garcia Leite ◽

Sílvio Nolasco de Oliveira Neto

Keyword(s):

Factorial Design ◽

Quality Index ◽

Aerial Part ◽

Dry Matter ◽

Base Saturation ◽

Phosphate Fertilization ◽

Neck Diameter ◽

Dickson Quality Index

ABSTRACT This study aimed to evaluate the growth and quality of seedlings of Plathymenia foliolosa Benth in response to base saturation of substrate and phosphate fertilization. The treatments were arranged in a factorial design of 6 P levels (0, 120, 240, 360, 480 and 600 mg dm-3) by 5 base saturation levels (3.5, 25, 40, 55, 70 %), in randomized blocks with four replications. The height of aerial part, neck diameter, shoot dry matter, root dry matter and total dry matter were determined at 118 days after the transplanting. It was still calculated the relation shoot dry matter/root dry matter and the Dickson Quality Index. There were significant effects of the phosphate fertilization for all studied variables. The base saturation had influence on all studied variables, except for the shoot dry matter/root dry matter relation. No significant effect of the interaction between base saturation of substrate and phosphate fertilization was observed on seedlings growth and quality. For the studied conditions, it is recommended 300 mg dm-3 of P for the production of quality seedlings of Plathymenia foliolosa without the necessity of liming.

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Morphophysiological quality of yerba mate plantlets produced by mini-cuttings

Semina Ciências Agrárias ◽

10.5433/1679-0359.2017v38n6p3515 ◽

2017 ◽

Vol 38 (6) ◽

pp. 3515 ◽

Cited By ~ 2

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.

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Growth of young Tabebuia aurea seedlings under irrigation with wastewater from fish farming

Revista Brasileira de Engenharia Agrícola e Ambiental ◽

10.1590/1807-1929/agriambi.v20n6p519-524 ◽

2016 ◽

Vol 20 (6) ◽

pp. 519-524 ◽

Cited By ~ 2

Author(s):

José R. de S. Pinto ◽

Rômulo M. O. de Freitas ◽

Tiago de S. Leite ◽

Francisco de A. de Oliveira ◽

Hugo Ferreira ◽

...

Keyword(s):

Leaf Area ◽

Plant Height ◽

Quality Index ◽

Dry Matter ◽

Fish Farming ◽

Diameter Ratio ◽

Stem Diameter ◽

Individual Leaf ◽

Experiment Individual ◽

Dickson Quality Index

ABSTRACT This study aimed to evaluate the growth of young Tabebuia aurea seedlings irrigated with different concentrations of wastewater from fish farming. The experiment was conducted in a seedling nursery, from June to August 2013. The treatments consisted of five concentrations of wastewater from fish farming diluted in freshwater (0, 25, 50, 75 and 100% of wastewater). Plant height, stem diameter and plant height/stem diameter ratio were evaluated every 15 days to verify the effects of treatments on seedlings growth. At the end of the experiment, individual leaf area, leaf area, leaf dry matter, stem dry matter, root dry matter, total dry matter and Dickson quality index were also evaluated. The reuse of wastewater from fish farming diluted at concentrations of 25 and 50% in freshwater is a viable alternative in the production of Tabebuia aurea seedlings. However, higher concentrations hinder the production of seedlings of this species.

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Influence of Organic and Inorganic Top Dressing Fertilization on Production Characteristics of Ruzi Grass (Brachiaria ruziziensis) in Thailand

Asian Journal of Dairy and Food Research ◽

10.18805/ajdfr.dr-159 ◽

2020 ◽

Author(s):

Md. Zakirul Islam ◽

Kannika Wongpanit ◽

Mohammad Ashiqul Islam ◽

Gopal Saha ◽

Md. Harun-ur-Rashid

Keyword(s):

Dry Matter ◽

Cow Dung ◽

Brachiaria Ruziziensis ◽

Randomized Design ◽

Nutritive Quality ◽

Number Of Leaves ◽

Completely Randomized Design ◽

Positive Effect ◽

Production Characteristics

This experiment was aimed to investigate the production characteristics and nutritive quality of Ruzi grass by varying levels of organic and inorganic fertilizer viz. cow dung (CD) and urea fertilizer (UF), respectively. The treatments were arranged into a factorial design and grouped according to a completely randomized design with three replications. Three doses of CD (0; 5; and 10 t/ha) were applied at sowing and four UF doses were applied as top dressing (0, 25, 50 and 100 kg/ha). The application of CD and UF have a positive effect on the length of leaves (p=0.00 and p=0.02) but their interactions are not significantly different (p=0.12). The effect of CD, UF and their interaction significantly increased the number of leaves (p=0.00), the number of tillers (p=0.00) and dry matter yield (p=0.00). There were no significant effect of CD and interaction on the leaf/stem ratio (p=0.17 and p=0.23, respectively) but UF slightly increased the ratio (p=0.00), CP% (p£0.00), NDF% (p£0.00) and ADF% (p£0.00). The best combination of fertilizer could be noted at 50 kg/ha UF and 10 t/ha CD to obtain better results. It might recommend that better fertilizer management can improve productivity as well as the nutritional quality of Ruzi grass.

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