scholarly journals Yellow passion fruit tree sexual propagation by different mucilage extraction methods and substrates

2018 ◽  
Vol 4 (2) ◽  
pp. 86
Author(s):  
Adriane Assis ◽  
Sergio Roberto ◽  
Vitor Júnior ◽  
Carla Oliveira ◽  
Rodrigo Hoshino ◽  
...  
Keyword(s):  
Seedling Emergence ◽  
Extraction Methods ◽  
Dry Mass ◽  
Passion Fruit ◽  
Stem Length ◽  
Water Retention Capacity ◽  
Retention Capacity ◽  
Initial Development ◽  
Number Of Leaves ◽  
Yellow Passion Fruit

The objective of this work was to evaluate the initial development of yellow passion fruit, as a function of the method of extracting the mucilage of the seeds (washing in water, fermentation in water and fermentation in water + sugar) and substrates (carbonized rice husk, coconut fiber and vermiculite). The completely randomized design with nine treatments and five replicates, with 50 seeds was used, in a 3 x 3 factorial arrangement (three mucilage extraction methods and three types of substrates). After 56 days of sowing, the following variables were evaluated seedling emergence percentage, number of leaves, leaf area, stem length and root largest length, dry mass of shoot and roots; and substrates characteristics such as pH, electric conductivity, density and water retention capacity. The emergence speed index was evaluated daily from sowing. It is verified that, except for the number of leaves and the shoot dry matter mass, the other variables were influenced by the study factors. In general, in the seeds without fermentation and fermentation in water mixed with sugar, the highest averages were obtained, regardless of the substrate used. Thus, both mucilage extraction methods and all tested substrates are indicated in the initial development of yellow passion fruit.

scholarly journals Accumulation and exportation of nutrients by yellow Passion fruit cv. IAC 275

2018 ◽  
Vol 40 (3) ◽  
Author(s):  
Gabriel Stefanini Mattar ◽  
Carolina Cinto de Moraes ◽  
Laura Maria Molina Meletti ◽  
Luis Felipe Villani Purquerio
Keyword(s):  
Accumulation Rate ◽  
Dry Mass ◽  
Passion Fruit ◽  
Stem Length ◽  
Production Cycle ◽  
Nutritional Requirement ◽  
Nutrient Accumulation ◽  
Nutrient Extraction ◽  
Cultivation Techniques ◽  
Yellow Passion Fruit

Abstract The mineral nutrition is essential to increase yield and fruit quality of passion fruit. There is no information of nutrient accumulation throughout the production cycle. Thus, in order to assist in the correct nutrients supply and update the recommendations, studies involving cultivars and cultivation techniques are necessary. The aim of this study was to evaluate the plant growth, the nutrient accumulation and the exportation in plants of yellow passion fruit cv. IAC 275. The experimental design was a randomized block, with three replications, where the treatments were evaluation times. Stem length, dry mass matter and nutrient accumulation in aerial part (leaves and stems), fruits and roots were evaluated. The maximum daily accumulation rate and periods of maximum nutritional requirement were calculated, in addition to the nutrient extraction and exportation. The nutrient accumulation at the end of the cycle, at 450 days after sowing, were in g plant-1: N (178.5) > K (162.4) > Ca (70.8) > Mg (14.8) > S (13.3) > P (11.0) and mg plant-1: Fe (827.6) > Mn (130.7) > Zn (69.8) > B (56.7) > Cu (17.8).

scholarly journals Tratamentos Pré-Germinativos na Emergência e Desenvolvimento Inicial de Plântulas de Graviola

2021 ◽  
Vol 25 (1) ◽  
pp. 72-76
Author(s):  
Marcus Vinicius Sandoval Paixão ◽  
Andrieli Ferrari Mônico ◽  
Rafaela Barreto Cazaroto Grobério ◽  
Gustavo Miranda Cremonini ◽  
Hélio Pena de Faria Junior ◽  
...  
Keyword(s):  
Seedling Emergence ◽  
Dry Mass ◽  
Experimental Unit ◽  
Annona Muricata ◽  
Initial Development ◽  
Efficient Treatment ◽  
Green Mass ◽  
Leaf Dry Mass ◽  
Number Of Leaves ◽  
Collar Diameter

A graviola, Annona muricata L., produz sementes que podem apresentar dormência ocasionada pela impermeabilidade do tegumento à água, necessitando assim de métodos para superação desta. Objetivou-se avaliar o efeito de tratamentos pré-germinativos na emergência e desenvolvimento inicial de plântulas de graviola. O delineamento experimental utilizado foi em blocos ao acaso, com 13 tratamentos e quatro repetições, sendo cada unidade experimental composta de 50 sementes. As sementes foram submetidas aos tratamentos com imersão por 30 minutos, os quais foram: água (26 °C testemunha), solução de giberelina a 1.000, 2.000, 3.000 e 4.000 mg.L-1, água com gelo em ponto de fusão (0 °C), congelador por 6 horas (-10 °C), geladeira por 24 horas (10 °C), água em ponto de ebulição (100 °C), solução de NaCl 9 g.L-1, solução de KCl 5 g.L-1, água de coco e suco de laranja. A semeadura ocorreu em tubetes 280 mL contendo substrato composto por solo+eterco bovino. Trinta dias após a semeadura (DAS) avaliou-se a porcentagem, índice de velocidade e tempo médio de emergência das plântulas. Sessenta dias após a semeadura foram avaliados: número de folhas; altura da planta; diâmetro do coleto; comprimento da raiz; massa verde foliar; massa seca foliar; massa verde e massa seca da raiz. O tratamento com giberelina de 4.000 mg.L-1 de GA3 foi o tratamento mais eficiente para induzir a emergência e desenvolvimento inicial de plântulas de graviola.   Palavras-chave: Annona muricata. Giberelina. Propagação.   Abstract Soursop, Annona muricata L., produces seeds that may present dormancy caused by the impermeability of the integument to water, thus requiring methods to overcome it. The objective was to evaluate the effect of pre-germinative treatments on the emergence and initial development of soursop seedlings. The experimental design used was in randomized blocks, with 13 treatments and four replications, each experimental unit consisting of 50 seeds. The seeds were submitted to immersion treatments for 30 minutes, which were: water (26°C control), 1.000 gibberellin solution, 2.000, 3.000 e 4.000 mg.L-1, water with ice at melting point (0 °C), freezer for 6 hours (-10 °C), refrigerator for 24 hours (10 °C), boiling water (100°C), NaCl 9 g.L-1 solution, KCl 5 g.L-1 solution, coconut water and orange juice. Sowing took place in 280 mL tubes containing substrate composed of soil + bovine manure. Thirty days after sowing (DAS), the percentage, speed index and mean seedling emergence time were evaluated. Sixty days after sowing the following items were evaluated: number of leaves; plant height; collar diameter; root length; leaf green mass; leaf dry mass; green mass and dry mass of the root. The treatment with gibberellin of 4.000 mg.L-1 of GA3 was the most efficient treatment to induce the emergence and initial development of soursop seedlings.   Keywords: Annona muricate. Gibberellin.  Propagation.

scholarly journals Super absorbent polymer application in seeds and planting furrow: it will be a new opportunity for rainfed agriculture

2017 ◽  
Vol 38 (4) ◽  
pp. 1703 ◽  
Author(s):  
Angélica Fátima de Barros ◽  
Leonardo Duarte Pimentel ◽  
Eduardo Fontes Araujo ◽  
Leandro Roberto de Macedo ◽  
Herminia Emilia Prieto Martinez ◽  
...  
Keyword(s):  
Survival Rate ◽  
Water Deficit ◽  
Seed Coat ◽  
Seedling Emergence ◽  
Dry Mass ◽  
Crop Failure ◽  
Seedling Mortality ◽  
Plant Survival ◽  
Initial Development ◽  
Number Of Leaves

Brazil is the fourth largest grain producer in the world. Its agriculture is mainly rainfed, with two cropping seasons per year. While the first crop (i.e., spring/summer) receives greater precipitation, the second crop (i.e., autumn/winter) is associated with greater risk of crop failure mainly due to the low rainfall, suggesting that technologies that could optimize water use during that period are needed. Superabsorbent polymers (SAP) are used in the forestry sector to reduce seedling mortality and the frequency of irrigation of eucalyptus and pinus glue owing to their ability to increase water storage capacity in the soil. However, to our knowledge, very little is known about the use of PSA in annual agricultural crops. To this end, the effects of PSA, as a seed coat or applied in the planting grooves, on the initial development of sorghum seedlings under conditions of water deficit were evaluated in two experiments under greenhouse conditions. In experiment 1, sorghum seeds with and without PSA coating were seeded in trays and subjected to three irrigation intervals to induce water deficit. The percentage of emergence and emergence speed index were evaluated and, at 26 days after sowing, seedling height, number of leaves per plant, survival rate, and dry mass of shoot and root were evaluated. In experiment 2, the seeds of sorghum with and without PSA coating were sown in pots, with PSA applied in the planting grooves. At 30 days after sowing, the plant stand, number of leaves per plant, plant height, and dry matter mass of leaves, stem, and root were evaluated. The results showed that PSA applied both as a seed coat and in planting grooves increased seedling growth and dry mass of aerial parts at 26 days and 30 days for experiments 1 and 2, respectively. In addition, seed coating with PSA increased plant survival rate, but reduced the rate of seedling emergence in both experiments. Therefore, the use of PSA as a seed coat or applied in the planting groove has beneficial effects on the vegetative development of sorghum under low water conditions. Further research is needed to address the effect of PSA on seedling emergence.

scholarly journals Variation of Water Availability in Initial Development of Safflower

2019 ◽  
Vol 11 (3) ◽  
pp. 558
Author(s):  
Nayara F. F. da S. Cruz ◽  
Luiz A. Zanão Júnior ◽  
Reginaldo F. Santos ◽  
Luciene K. Tokura ◽  
Laís F. J. do Nascimento ◽  
...  
Keyword(s):  
Plant Height ◽  
Water Availability ◽  
Root Length ◽  
Aerial Part ◽  
Seedling Emergence ◽  
Dry Weight ◽  
Dry Mass ◽  
Fresh Weight ◽  
Initial Development ◽  
Number Of Leaves

The availability of water is one of the most important factors for the development of the seeds. Thus, studies related to adequate humidity for germination, emergence and early development of safflowers, is necessary for the productive use of this culture. Thus, the objective of study was to evaluate the initial development of two varieties of seeds of Safflowers (IAPAR and IMA2103) in six levels of water availability in substrate: 0, 10, 20, 30, 40 and 50%. At 15 days the seedling emergence were evaluate. At 30 days were evaluate plant height, root length, stem diameter, number of leaves, fresh weight of the aerial part and root, dry weight of shoot and root. The treatment without irrigation, there was decrease the emergence, emergence speed for both genotypes. Treatments above 30% of water availability in the two varieties presented emergency superior to 50%. Lower irrigation rates favored root length and dry mass.

scholarly journals Alternative substrates and controlled-release fertilizer in the production of yellow passion fruit seedlings

2020 ◽  
Vol 11 ◽  
pp. e3292
Author(s):  
Paulo Sérgio Braña Muniz ◽  
Romeu de Carvalho Andrade Neto ◽  
Aureny Maria Pereira Lunz ◽  
Ueliton Oliveira De Almeida ◽  
James Maciel De Araújo
Keyword(s):  
Controlled Release ◽  
Experimental Design ◽  
Quality Index ◽  
Dry Mass ◽  
Stem Diameter ◽  
Passion Fruit ◽  
Brazil Nut ◽  
Controlled Release Fertilizer ◽  
Number Of Leaves ◽  
Yellow Passion Fruit

There are many residues that can be used for agriculture, especially as a substrate. However, it is often necessary to fertilize the growing media so that the seedlings can be produced with quality. The objective of this study was to evaluate the use of alternative and commercial substrates associated with different controlled-release fertilizer levels in producing yellow passion fruit seedlings. The experiment was conducted at the Embrapa Acre seedling nursery, with 50% luminosity. We used a randomized block experimental design in a 5 x 3 factorial scheme with 15 treatments, 4 replicates, and 10 plants per plot. The treatments consisted of five controlled-release fertilizer levels (0 kg m-3, 3 kg m-3, 6 kg m-3, 9 kg m-3, and 12 kg m-3) combined with lumps of acerola fruits (LAF), Brazil nut peel (BNP), and commercial (CS) substrates. The evaluated variables were seed height, stem diameter, number of leaves, shoot dry mass (SDM), root dry mass (RDM), total dry mass (TDM), and seedling quality index (SQI). Use of the alternative lumps of acerola fruit (LAF) substrate associated with the 10 kg m-³ level of controlled-release fertilizer promoted the best results. BNP has potential for use as a substrate for passion fruit seedlings, however adjustments are necessary to achieve an adequate composition.

scholarly journals Aspecto nutricional do biocarvão na produção de mudas de rúcula em condições semiáridas

2020 ◽  
Vol 16 (3) ◽  
pp. 12-17
Author(s):  
Joabe Freitas Crispim ◽  
Jailma Suerda Silva de Lima ◽  
Jessika Kaliane Barbosa da Silva ◽  
Antônio Gideilson Correia da Silva ◽  
Gabriel Kariel Ferreira Ferdandes ◽  
...  
Keyword(s):  
Water Retention ◽  
Plant Root ◽  
High Water ◽  
Dry Mass ◽  
Water Retention Capacity ◽  
Response Curves ◽  
R Software ◽  
Retention Capacity ◽  
Number Of Leaves ◽  
Neck Diameter

The biochar obtained from pyrolysis of vegetable biomass gives the plant a good nutritional supply and has a high water retention capacity, however there are still few studies evaluating its use in the production of leafy vegetable seedlings. With that, the objective of this work was to determine proportions of biochar in sand that allow better development of rocket seedlings. The experiment was conducted in a greenhouse at the Federal Rural University of the Semi-Arid (UFERSA). The experimental design used was completely randomized with six treatments (0; 10; 20; 30; 40; 50% of biochar) and ten replications. The evaluated characteristics were: Twinning; Number of leaves per plant; Root length; Plant height; Neck diameter; Fresh and dry mass of plants and water content in the plant. The data were submitted to analysis of variance. The procedure for adjusting the response curves was performed using the R software. The 50% biochar proportion is recommended in the production of arugula seedlings as it provides better development in the plants, promoting significant improvements in all the characteristics analyzed, except germination and number of leaves per plant.

scholarly journals Aryl removal methods and passion fruit seed positions: Germination and emergence

2015 ◽  
Vol 37 (2) ◽  
pp. 125-130 ◽  
Author(s):  
Sérgio Macedo Silva ◽  
Roberta Camargos de Oliveira ◽  
Risely Ferraz de Almeida ◽  
Adílio de Sá Júnior ◽  
Carlos Machado dos Santos
Keyword(s):  
Seedling Emergence ◽  
Technical Information ◽  
Passion Fruit ◽  
High Yield ◽  
Tropical Fruits ◽  
Removal Method ◽  
Genetic Potential ◽  
Seed Position ◽  
Mechanical Extraction ◽  
Yellow Passion Fruit

Abstract: Yellow passion fruit has conquered a significant position in the agribusiness of tropical fruits; therefore, farmers have been interested in expanding their groves, and technical information that guarantees the high yield of the farmings is needed. Aiming to observe factors related to the propagative material targeted at quality and maximization of the genetic potential, the objective of the study consisted in assessing germination and emergence of passion fruit seeds collected in three positions in the fruits and submitted to different methods of mucilage removal (aryl). The passion fruits were split in three parts: distal, medial and proximal and the contents of each part was divided in two. The content of each part of the fruit was submitted to mechanical and by fermentation methods for removal of aryl. It is concluded that the seed position in the fruit does not interferes with the germination. The aryl removal method by mechanical extraction affects the germination and seedling emergence.

scholarly journals ALTERNATIVE SUBSTRATES FOR PRODUCTION OF YELLOW PASSION FRUIT SEEDLINGS

2020 ◽  
Vol 7 (1) ◽  
pp. 43-48
Author(s):  
Eduardo Santana Aires ◽  
Carlos Alberto Aragão ◽  
Itala Laiane Silva Gomes ◽  
Gilmário Noberto de Souza ◽  
Isa Gabriela Vieira de Andrade
Keyword(s):  
Plant Height ◽  
Dry Matter ◽  
Passion Fruit ◽  
Dry Matter Accumulation ◽  
Alternative Substrates ◽  
Randomized Design ◽  
Length Width ◽  
Number Of Leaves ◽  
Completely Randomized Design ◽  
Yellow Passion Fruit

This study aimed to evaluate different substrates to produce yellow passion fruit seedlings. For this purpose, an experiment was carried out in a greenhouse, from April to June 2016. A completely randomized design with five replications, in a 6 x 5 factorial scheme was used. The first factor was the alternative substrates (poultry, cattle and equine manure, sugarcane and coconut bagasse, and Organomais compost). The second factor was the replacement levels to the commercial substrate of Plantmax® (100:0, 75:25, 50:50, 25:75, 0:100). The seedling evaluation was carried out 42 days after sowing. The following variables were analyzed: length, width, and the number of leaves; plant height and shoot dry matter. A significant effect (P0.05) for the interaction between the factors was verified. The addition of 60% cattle manure and Organomais to the commercial substrate Plantmax® promoted greater length, width, and the number of leaves, plant height, and shoot dry matter accumulation in the yellow passion fruit seedlings.

scholarly journals Collect Seasons, Indolebutyric Acid and Substrates on Rooting of ‘Bengal’ Lychee Cuttings

2018 ◽  
Vol 10 (5) ◽  
pp. 338
Author(s):  
Ronan C. Colombo ◽  
Adriane M. de Assis ◽  
Vanessa Favetta ◽  
Lilian Y. Yamamoto ◽  
Sergio R. Roberto
Keyword(s):  
Rice Husk ◽  
Water Retention ◽  
Dry Mass ◽  
Commercial Production ◽  
Production Costs ◽  
Water Retention Capacity ◽  
Coconut Fiber ◽  
Indolebutyric Acid ◽  
Retention Capacity ◽  
Promising Alternative

Lychee (Litchi chinensis Sonn.) propagation by cuttings is a promising alternative in commercial production of seedlings, since it is an easy procedure, in addition to enabling the standardization in the field and the reduction in production costs. Therefore the objective of this work was to evaluate ‘Bengal’ lychee cuttings rooting, collected in spring and summer, using different concentrations of indolebutyric acid (IBA) and substrates. The experimental design was completely randomized, in a 3 × 3 factorial arrangement, with 5 replications and 10 cuttings per plot, and the following factors were adopted: IBA concentrations (0; 1,000 and 2,000 mg L-1) and types of substrates (carbonized rice husk, vermiculite medium granules and coconut fiber). At 140 days, the following variables were evaluated: cuttings survival; leaf maintenance; cuttings unrooted with calli; cuttings rooted; roots number per cutting; root length and root dry mass. In addition, the pH, electrical conductivity, density and water retention capacity of the substrates were evaluated. There was no difference in IBA concentrations applied in both evaluated periods. However, in the spring, the carbonized rice husk provided highest mean for the measured variables. On the other hand, in the summer, the rooting percentage presented a lower average in all substrates (< 1%), independent of the IBA concentrations. It was concluded that the ‘Bengal’ lychee propagation by cutting can be carried out in the spring, using carbonized rice husk as substrate, without IBA.

scholarly journals 818 PB 237 USE OF BIOSOLIDS FOR SOD PRODUCTION

HortScience ◽  
1994 ◽  
Vol 29 (5) ◽  
pp. 550e-550
Author(s):  
Mouna Benmbarek ◽  
Y. Desiardins ◽  
R.R. Simard
Keyword(s):  
Water Retention ◽  
Sandy Loam ◽  
Seedling Emergence ◽  
Kentucky Bluegrass ◽  
Application Rate ◽  
Water Retention Capacity ◽  
Municipal Solid Wastes ◽  
Retention Capacity ◽  
The Subject ◽  
Sod Production

Landfiling and incineration constitute the most commonly used methods of biosolid disposal. To minimize the environmental risk, their chemical and biological characteristics have been the subject of several investigations. The present research was undertaken to evaluate the agronomic value of municipal solid wastes (MSW) and composted de-inked sludge (CDS) in a field experiment for sod production. Four variables in a split factorial design, were investigated at two sod farms: compost (MSW and CDS), soil (sandy loam and clay loam), application method (surface applied 6cm and incorporated 20cm), and the application rate (50-100 and 150t/ha). Controls consisted of unfertilized and unamended but fertilized plots. Both experimental sites were seeded with kentucky bluegrass. Preliminary data indicate that the two biosolids promoted the sod growth at the rates applied. However, a better plot cover was observed if composts were rototilled at a depth of 6cm as compared to the conventional treated plots. Measurements of root and foliar weights revealed that the turf growth was enhanced with increasing rates, which is probably caused by additional soil macronutrients showed by the analysis. Seed germination and seedling emergence were not delayed as indicated by the observed increase in the water retention capacity of the soil especially at higher compost rates.

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