Morphophysiological quality of yerba mate plantlets produced by mini-cuttings

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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SUBSTRATE VOLUMES AND APPLICATION OF PACLOBUTRAZOL FOR ORNAMENTAL PEPPER PRODUCTION

JOURNAL OF NEOTROPICAL AGRICULTURE ◽

10.32404/rean.v6i3.3342 ◽

2019 ◽

Vol 6 (3) ◽

pp. 1-5

Author(s):

Naine Parladore ◽

Abimael Gomes da Silva ◽

Edilson Costa ◽

Flávio Ferreira da Silva Binotti ◽

Laura Araújo Silva ◽

...

Keyword(s):

Quality Index ◽

Foliar Application ◽

Dry Mass ◽

Diameter Ratio ◽

Stem Diameter ◽

State University ◽

Mato Grosso ◽

Mato Grosso Do Sul ◽

Dickson Quality Index

The objective was to evaluate the quality of ornamental pepper seedlings, cultivar Pyramid, in different substrate volumes, with foliar application of paclobutrazol (PBZ).The experiment was carried out at the Mato Grosso do Sul State University - UEMS, in Cassilândia - MS. The experimental design was completely randomized, in a 2 x 2 factorial scheme (growth container x foliar application of PBZ) with four replicates of 36 seedlings each. Plastic trays (cells with a volume of 50 mL) and polystyrene trays (Isopor®, 100 mL cells) were used as containers. The treatments were: polystyrene tray with PBZ application; polystyrene tray without PBZ application; plastic tray with PBZ application and plastic tray without the application of PBZ. Plant height, root length, stem diameter, shoot dry mass, root dry mass, total dry mass, height/stem diameter ratio (H/D), shoot/root ratio (S/R) and Dickson quality index were evaluated. Foliar application of paclobutrazol resulted in robust pepper seedlings with reduced size, suitable and desirable characteristics for ornamental purposes. The polystyrene trays with higher volume cells (100 mL) contributed to the higher quality of ornamental pepper seedlings.

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

JOURNAL OF NEOTROPICAL AGRICULTURE ◽

10.32404/rean.v7i4.4880 ◽

2020 ◽

Vol 7 (4) ◽

pp. 73-79

Author(s):

Nicholas Taborda Nordi ◽

Eduardo Santana Aires ◽

Thatiane Nepomuceno Alves ◽

Samara Moreira Perisato ◽

Antonio Ismael Inácio Cardoso

Keyword(s):

Quality Index ◽

Dry Matter ◽

Stem Diameter ◽

Control Treatment ◽

Final Performance ◽

Randomized Design ◽

Number Of Leaves ◽

Nutrient Solutions ◽

Dickson Quality Index

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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Promotion of the Growth and Quality of Chinese Cabbage by Application of Biogas Slurry of Water Hyacinth

Applied Mechanics and Materials ◽

10.4028/www.scientific.net/amm.195-196.1200 ◽

2012 ◽

Vol 195-196 ◽

pp. 1200-1206 ◽

Cited By ~ 1

Author(s):

Yan Feng Xue ◽

Zhi Qi Shi ◽

Jian Chen ◽

Shao Hua Yan ◽

Jian Chu Zheng

Keyword(s):

Chinese Cabbage ◽

Water Hyacinth ◽

Quality Index ◽

Soluble Sugar ◽

Dependent Manner ◽

Biogas Slurry ◽

Fresh Weight ◽

Shoot Height ◽

Nitrite Content

Biomass and quality index of Chinese cabbage were investigated under the following treatment, control (CK), 25% biogas slurry + 75% fertilizer (Z-25%), 50% biogas slurry + 50% fertilizer (Z-50%), 75% biogas slurry + 25% fertilizer (Z-75%), and 100% biogas slurry (Z-100%). The results indicated that Z-25% significantly increased shoot height and fresh weight. But shoot height and fresh weight significantly decreased in a time-dependent manner when the concentration of the biogas slurry was greater than 50%. Vitamin C, soluble sugar, protein, and nitrite were measured to evaluate the effect of biogas slurry on the quality of Chinese cabbage. Z-25% treatment could remarkably increased the content of dehydroascorbate (DHA) and total Vc, whereas did not significantly affect reduced ascorbate (AsA) content compared to the CK for 60 d. The content soluble sugar and protein were significantly enhanced under Z-25% treatment. In addition, Z-25% effectively reduced nitrite content in Chinese cabbage. Biogas slurry with concentration more than 50% could not promote quality index of Chinese cabbage. To sum up, biogas slurry of water hyacinth could improve the growth and quality of Chinese cabbage under the optimal applied concentration.

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Matrix management interfers in yield and quality of cocoa seedlings

Revista Brasileira de Fruticultura ◽

10.1590/0100-29452018582 ◽

2018 ◽

Vol 40 (3) ◽

Cited By ~ 1

Author(s):

Rafaela Alves Pereira ◽

Gedeon Almeida Gomes Júnior ◽

Eliandro Malta Rodrigues ◽

George Andrade Sodré ◽

Célio Kersul do Sacramento

Keyword(s):

Quality Index ◽

Quality Evaluation ◽

Pearson Correlation ◽

Dry Mass ◽

Experimental Unit ◽

Plant Management ◽

Yield And Quality ◽

Cocoa Seedlings ◽

Dickson Quality Index

Abstract The influence of two managements on yield and quality of plagiotropic mini-cuttings of four cacao clones was evaluated. The design was completely randomized in a 4 x 2 factorial scheme with 4 clones x 2 mother plant management (apical pruning and bending), with 10 replicates and one plant as experimental unit. Seedlings used were propagated by rooting of semi-woody cuttings of plagiotropic branches and at seven months of age, two seedlings of each clone were transplanted to 12 L pots filled with organomineral substrate. After transplantation, the apex of one of the plants was cut based on the count of the first six leaves from the apex. For bending, stems were folded and horizontally fixed. The first collection of mini-cuttings was performed 30 days after transplantation and the others during the following seven months. The yield of mini-cuttings was estimated during collections and part was used for rooting and quality evaluation of seedlings. After 90 days, 10 mini-cuttings of each clone were evaluated for quality using the Dickson quality index (DQI). Another 10 rooted mini-cuttings were transplanted to 1.5 L polyethylene bags and kept in greenhouse for another 120 days until final quality evaluation at 210 days. Data were submitted to analysis of variance and Tukey test at 5% probability. Shapiro-Wilk normality test and Pearson correlation analysis were performed. bending was more efficient in the average production of mini-cuttings especially for BN 34 clone. The Dickson quality index was correlated with root dry mass, at both 90 and 210 days, and the bending technique was responsible for the best DQI. Variable height was not adequate to estimate the quality of cocoa seedlings.

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Influência da Casca de Arroz Carbonizada no Desenvolvimento de Mudas de Enterolobium contortisiliquum (VELL.) Morong

UNICIÊNCIAS ◽

10.17921/1415-5141.2018v22n2p76-80 ◽

2018 ◽

Vol 22 (2) ◽

pp. 76

Author(s):

Vinícius Moreira Vaz ◽

Douglas Santos Gonçalves ◽

Priscila Bezerra De Souza

Keyword(s):

Rice Husk ◽

Quality Index ◽

Dry Mass ◽

Native Forest ◽

Seedling Production ◽

University Campus ◽

Forest Nursery ◽

Forest Species ◽

Shoot Height ◽

Dickson Quality Index

Entre as espécies florestais nativas indicadas para a recuperação de áreas degradas está o Enterolobium contortisiliquum (Vell.) Morong, pouco se sabe sobre os processos germinativos e de produção de mudas desta espécie. Diante disso, o presente estudo teve como objetivo avaliar a influência da casca de arroz carbonizada no desenvolvimento de mudas de Enterolobium contortisiliquum. O experimento foi conduzido no Viveiro Florestal da Universidade Federal do Tocantins, campus Universitário de Gurupi – TO, em que foram instalados cinco tratamentos e 20 repetições, com adição de Casca de Arroz Carbonizada (CAC) no substrato comercial Bioflora® (SCB), nas proporções de (T1) 0% CAC + 100% SCB, (T2) 25% CAC + 75% SCB, (T3) 50% CAC + 50% SCB, (T4) 75% CAC + 25% SCB e (T5) 100% CAC. Aos 20, 40 e 60 dias, após a semeadura, foram avaliados os parâmetros altura da parte aérea e diâmetro do coleto. Ao final de 60 dias foram obtidos os parâmetros: peso da massa seca da raiz, peso da massa seca da parte aérea, peso da massa seca total e índice de qualidade de Dickson. O delineamento experimental utilizado foi o inteiramente casualizado (DIC), as médias dos tratamentos foram comparadas através do Software Assistat 7.7 pelo teste Scott e Knott ao nível de 5% de probabilidade. O uso de casca de arroz carbonizada (CAC) influenciou no desenvolvimento de mudas de Enterolobium contortisiliquum (Vell.) Morong. Palavras-chave: Substratos Alternativos. Tamboril. Viveiro Florestal AbstractAmong the native forest species indicated for the recovery of degraded areas is Enterolobium contortisiliquum (Vell.) Morong, little is known about the germination processes and seedling production of this species. Therefore, the present study aimed to evaluate the influence of carbonized rice husk on the development of Enterolobium contortisiliquum seedlings. The experiment was conducted in the Forest Nursery of the Federal University of Tocantins, University campus of Gurupi - TO, five treatments and 20 replicates were installed, with the addition of Carbonized Rice Peel (CAC) in the commercial substratum Bioflora ® (SCB), in proportions (T1) 0% CAC + 100% SCB, (T2) 25% CAC + 75% SCB, (T3) 50% CAC + 50% SCB, (T4) 75% CAC + 25% SCB and (T5) 100% CAC . At 20, 40 and 60 days after sowing, the parameters of shoot height and shoot diameter were evaluated. At the end of 60 days, the following parameters were obtained: root dry mass weight, shoot dry mass weight, total dry mass weight and Dickson quality index. The used experimental design was completely randomized (DIC), the means of the treatments were compared using Software Assistat 7.7 by the Scott and Knott test at the 5% probability level. The use of carbonized rice husk (CAC) influenced the development of Enterolobium contortisiliquum (Vell.) Morong seedlings. Keywords: Alternative Substrates. Monkfish. Forest Nursery

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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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Growth and quality of Brazilian pine tree seedlings as affected by container type and volume

Ornamental Horticulture ◽

10.1590/2447-536x.v25i3.2059 ◽

2019 ◽

Vol 25 (3) ◽

pp. 276-286

Author(s):

Leandro Marcolino Vieira ◽

Erik Nunes Gomes ◽

Theodore Aaron Brown ◽

Valdeci Constantino ◽

Flavio Zanette

Keyword(s):

Quality Index ◽

Nonwoven Fabric ◽

Dry Mass ◽

Tree Seedlings ◽

Pine Tree ◽

Plastic Bags ◽

Collar Diameter ◽

Root Collar ◽

Dickson Quality Index

Abstract Araucaria angustifolia (Bert.) O. Kuntze (Araucariaceae), commonly known as araucaria and Brazilian pine tree, can be grown for their edible pine nuts (pinhões), medicinal properties, and ornamental purposes. The aim was to assess the shoot and root growth and the overall quality of A. angustifolia seedlings grown in containers with different sizes, shapes and composition. Seeds were sowed in five containers: I – 126cm3 polypropylene cone-tainers (small cone-tainers); II – 290cm3 cone-tainers (large cone-tainers); III – 879cm3 polyethylene black bags; IV- 275 cm3 nonwoven fabric (TNT) containers (small TNT container) and; 493 cm3 nonwoven fabric (TNT) containers (large TNT container). Seedlings were evaluated 210 days after sowing, regarding the following variables: aboveground height (cm), root collar diameter (mm), shoot dry mass (g), roots dry mass (g), total dry mass (g), leaf area (cm2), roots area (cm2), roots volume (cm3), sturdiness quotient, root-shoot ratio and Dickson quality index. Height was superior for seedlings grown in the plastic bags (27.6 cm) and the large TNT containers (27.02 cm) when compared to the small and large cone-tainers (21.75 and 21.78 cm, respectively). Plastic bags also presented greater values of root-collar diameter, shoots, roots and total biomass and Dickson Quality index. Small and large TNT containers promoted lower root area and volume when compared to large polyethylene cone-tainers, but allowed for the same or better aboveground growth. Taking all results analyzed together, the polyethylene black bag promoted better growth and quality of Brazilian pine tree seedlings in comparison to the other containers.

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Crescimento e qualidade de mudas de Inga laurina em função do substrato e adubação suplementar

Pesquisa Florestal Brasileira ◽

10.4336/2016.pfb.36.86.917 ◽

2016 ◽

Vol 36 (86) ◽

pp. 153 ◽

Cited By ~ 1

Author(s):

Murilo Figueredo Campos De Jesus ◽

José Olimpio De Souza Júnior ◽

Gabriel Salles Góes ◽

Ediófila Brito-Rocha ◽

Marcelo Schramm Mielke

Keyword(s):

Growth Rate ◽

Relative Growth Rate ◽

Nitrogen Fertilization ◽

Forest Restoration ◽

Quality Index ◽

Relative Growth ◽

Fertilization Experiment ◽

Coir Dust ◽

Dickson Quality Index

O objetivo deste estudo foi avaliar o efeito de misturas de um substrato comercial e pó de fibra de coco (PFC) no crescimento e na qualidade de mudas de Inga laurina (Sw.) Willd. (Fabaceae). Tubetes de polietileno foram preenchidos com quatro misturas do substrato comercial HS Florestal® (HSF) e PFC nas proporções: T1 = 100% HSF; T2 = 80% HSF + 20% PFC; T3 = 60% HSF + 40% PFC e T4 = 40% HSF + 60% PFC. Os experimentos foram realizados de forma independente, em presença (experimento I) e ausência (experimento II) de adubação suplementar. Foram realizadas avaliações de crescimento e qualidade das mudas ao final dos experimentos, aos 81 dias (experimento I) e 110 dias (experimento II) após a repicagem. Concluiu-se que o uso da adubação suplementar não apresentou diferenças em crescimento e qualidade das mudas de I. laurina até o percentual de 60% de PFC misturado ao substrato comercial. Sem a adição de adubação suplementar, a mistura com 80% HSF + 20% PFC é indicada para a produção de mudas de I. laurina. Além disso, a ausência de adubação suplementar nitrogenada e a adição de PFC ao substrato estimularam a nodulação.Growth and quality of Inga laurina seedlings as a function of the substrate and additional fertilizationThe aim of this study was to evaluate the effect of mixtures of a commercial substrate and coconut coir dust (CCD) to grow Inga laurina (Sw.) Willd. (Fabaceae) seedlings. Polyethylene tubes were filled with four mixtures of a commercial substrate HS Florestal® (HSF) and CCD in the following proportions: T1 = 100% HSF, T2 = 80% HSF + 20% CCD, T3 = 60% HSF + 40% CCD and T4 = 40% HSF + 60% CCD. The experiments were conducted independently, with supplement fertilization (experiment I) and without (experiment II). Seedlings growth and quality were evaluated at the end of the experiments, 81 days (experiment I) and 110 days (experiment II) after transplanting. It was concluded that supplement fertilization presented no differences in the growth and quality of I. laurina seedlings until up to 60% of PFC mixed with commercial substrate. Without supplement fertilization the mix of 80% HSF + 20% PFC is indicate for production of I. laurina seedlings. Moreover, the lack of supplement nitrogen fertilization and addition of PFC to the commercial substrate stimulated nodulation.Index terms: Dickson quality index; Relative growth rate; Forest restoration

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

Bioscience Journal ◽

10.14393/bj-v36n6a2020-48041 ◽

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.

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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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