scholarly journals Sources and doses of aluminum in experiments with rice in nutrient solution

2019 ◽  
Vol 23 (7) ◽  
pp. 511-517
Author(s):  
Lucas B. de Freitas ◽  
Dirceu M. Fernandes ◽  
Suelen C. M. Maia ◽  
Arianne Moniz ◽  
Beatriz G. Mazziero ◽  
...  
Keyword(s):  
Nutrient Solution ◽  
Aluminum Chloride ◽  
Aluminum Toxicity ◽  
Upland Rice ◽  
Dry Weight ◽  
Potassium Sulfate ◽  
Rice Plants ◽  
Randomized Design ◽  
Aluminum Activity ◽  
Aluminum Compounds

ABSTRACT The aluminum source to produce toxicity in upland rice in nutrient solution experiments is not yet well established, althought the aluminum potassium sulfate has been utilized source to produce aluminum toxicity. However, in recent studies have used aluminum chloride. The aim of this study was to evaluate the capacity of aluminum sources and doses to produce toxicity in upland rice plants grown in nutrient solution. The experiment was arranged in a block randomized design, in a 2 x 5 factorial scheme and four repetitions. The treatments were two aluminum sources (aluminum potassium sulfate - AlK(SO4)2.12H2O and aluminum chloride - AlCl3.6H2O) and five aluminum doses in nutrient solution (0, 370, 740, 1100 and 1480 μmol L-1). The experiment was conducted in a greenhouse in Botucatu city, São Paulo state, Brazil, starting in April 2012, and was carried out for 56 days from transplanting of the seedlings. Using aluminum chloride, the rice plants show lower production of root and total dry weight, area and root volume, medium and thick root length, potassium and sulfur contents and accumulations. Using aluminum potassium sulfate, there are lower aluminum activity and availability, besides the formation of large amount of aluminum compounds non-toxic to the plants (aluminum sulfate) in the nutrient solution. The aluminum doses between 1100 to 1480 µmol L-1, corresponding to aluminum activity of 336.8 to 429.0 µmol L-1 of aluminum chloride as source, are more effective to produce aluminum toxicity in upland rice plants grown in nutrient solution.

scholarly journals Effects of silicon on aluminum toxicity in upland rice plants

2017 ◽  
Vol 420 (1-2) ◽  
pp. 263-275 ◽  
Author(s):  
Lucas Barbosa de Freitas ◽  
Dirceu Maximino Fernandes ◽  
Suelen Cristina Mendonça Maia ◽  
Adalton Mazetti Fernandes
Keyword(s):  
Aluminum Toxicity ◽  
Upland Rice ◽  
Rice Plants

scholarly journals SEMI-HYDROPONIC CULTIVATION AS A SELECTION TOOL FOR ALUMINUM TOLERANCE IN FORAGE GRASSES

2016 ◽  
Vol 24 (4) ◽  
pp. 350-356
Author(s):  
Gustavo André Colombo ◽  
Aurélio Vaz-de-Melo ◽  
Gilberto Coutinho Machado Filho ◽  
André Silva de Sousa
Keyword(s):  
Nutrient Solution ◽  
Aluminum Toxicity ◽  
Aluminum Tolerance ◽  
Dry Weight ◽  
Panicum Maximum ◽  
Forage Grasses ◽  
Breeding Programs ◽  
Brachiaria Humidicola ◽  
Hydroponic Cultivation ◽  
Constant Improvement

The constant improvement of selection methods is necessary in order to optimize efficiency of breeding programs for aluminum tolerance. Thus, the aim of this study was to establish a vase volume to the ideal semi-hydroponic cultivation of forage grasses subjected to stress by aluminum in nutrient solution. The experimental design completely randomized, with four replicates, each replicate consisting of one plant per vase. The treatments were arranged in a factorial design 4x5, being the first factor consists of four genotypes of forage grasses Brachiaria Humidicola; Brachiaria brizantha cv. Piatã; Panicum maximum cv. Massai and Panicum maximum cv. Mombaça) and the second consisting of five separate volumes plastics vases where seedlings were grown (0.2; 0.25; 0.3; 0.35 and 0.4 dm³). The grasses grown in a semi-hydroponics system irrigated with nutrient solution rich in aluminum (3 mg L-1). Was measured plant height, dry weight of aereal part and root length. The semi-hydroponic cultivation in aluminum increased nutrient solution is effective in differentiation of forage grasses genotypes in relation to aluminum tolerance. Pots volumes near 0.3 dm3 promote greater development for root and aerial part attributes in forage grasses grown in nutrient solution with aluminum toxicity.

scholarly journals USO RACIONAL DE NUTRIENTES NO CULTIVO HIDROPÔNICO DE AMOR-PERFEITO

Irriga ◽  
2006 ◽  
Vol 11 (3) ◽  
pp. 367-375
Author(s):  
Milena Andrea Curitiba Pilla ◽  
Lenita Lima Haber ◽  
Hélio Grassi Filho
Keyword(s):  
Plant Height ◽  
Nutrient Solution ◽  
Treatment Plant ◽  
Dry Weight ◽  
Solution Concentration ◽  
Randomized Design ◽  
Hydroponic Cultivation ◽  
Viola X Wittrockiana ◽  
Number Of Leaves ◽  
System Length

USO RACIONAL DE NUTRIENTES NO CULTIVO HIDROPÔNICO DE AMOR-PERFEITO  Milena Andrea Curitiba Pilla1; Lenita Lima Haber1; Hélio Grassi Filho2.1Departamento de Produção Vegetal – Horticultura, Faculdade de Ciencias Agronomicas, Universidade Estadual Paulista, Botucatu, SP, [email protected];  2Departamento de Recursos Naturais - Ciência do Solo, Faculdade de Ciencias Agronomicas, Universidade Estadual Paulista, Botucatu, SP  1 RESUMO O objetivo deste trabalho foi avaliar diferentes concentrações de solução nutritiva no cultivo hidropônico de Viola x wittrockiana Gams. O experimento foi conduzido em sistema hidropônico DFT, no delineamento experimental inteiramente casualizado, em esquema fatorial 5x4, com cinco concentrações de solução nutritiva (50, 75, 100, 125 e 150%) e quatro épocas de avaliação, contando cada tratamento, de três repetições de três plantas. Foram analisadas a altura de plantas, o comprimento da raiz, o número de folhas, as flores e botões florais e a massa fresca e seca da parte aérea e da raiz. Os resultados obtidos foram submetidos à análise de variância, teste de Tukey para épocas de avaliação e análise de regressão para concentrações da solução nutritiva. Foi observado um decréscimo no desenvolvimento da parte aérea e do sistema radicular com o aumento do número de dias de cultivo e, o maior número de botões florais ocorreu na terceira semana de cultivo. Observou-se, de maneira geral, uma redução na altura de plantas, no comprimento do sistema radicular, no número de folhas e na massa fresca e seca da parte aérea com o aumento da concentração de nutrientes na solução nutritiva. UNITERMOS: Viola x wittrockiana Gams, solução nutritiva, concentração salina.  PILLA, M. A .C.;  HABER , L. L.; GRASSI FILHO, H. RATIONAL NUTRIENT USE IN HYDROPONIC CULTIVATION OF “Viola x wittrockiana Gams”  2 ABSTRACT The objective of this work was to evaluate different concentrations of nutritional solution in the hydroponic cultivation of Viola x wittrockiana Gams. The experiment was conducted in DFT hydroponic system, in a completely randomized design with a 5x4 factorial scheme and five nutrient solution concentrations (50, 75, 100, 125 and 150%), four evaluation periods with three replications of three plants for each treatment. Plant height, root length, number of leaves, flowers and floral buttons; fresh and dry weight of shoot and root were determined. The results were submitted to variance analysis, Tukey’s test for evaluation periods and regression analysis for nutrient solution. A decrease in the development of the shoot and root was observed with an increase of the number of cultivation days; the greatest number of floral buttons occurred in the third week of cultivation. A reduction in the plant height, root system length, the number of leaves and the fresh and dry weight of shoot was observed generally with the increase of nutrient solution concentration. KEYWORDS: Viola x wittrockiana Gams, nutrient solution, saline concentration.

scholarly journals Upland Rice Growth after Low-Input Amendments on Upland Soil in West Kalimantan, Indonesia

2019 ◽  
Vol 24 (3) ◽  
pp. 119
Author(s):  
Sutarman Gafur ◽  
Ismahan Umran
Keyword(s):  
Upland Rice ◽  
Dry Weight ◽  
Cow Manure ◽  
Upland Soil ◽  
Organic C ◽  
West Kalimantan ◽  
Low Input ◽  
Randomized Design ◽  
Completely Randomized Design ◽  
Poor Soil

Upland soils in West Kalimantan used for agricultural activities reach about 483,077 hectares. However, this land potential is not yet optimally exploited due to poor soil fertility. To increase its productivity, there is a need to invent technology packages that are not only effective but also efficient. This research is designed to study the growth of upland rice and the changes in certain soil properties after low-input treatment applications. This research used a Completely Randomized Design. There were 6 treatments and 4 replications. The treatment levels were P0 (no treatment), P1 (7tons of cow manure/ha + 300 kg NPK compound), P2 (15tons of cow manure/ha + 300 kg NPK compound), P3 (7tons of compost/ha + 300 kg NPK compound), P4 (15tons of compost/ha + 300 kg NPK compound), and P5 (600 kg/ha NPK compound). Parameters included plant height and dry weight, NPK absorptions, soil pH, organic C content, and NPK contents after soil treatment. The results showed that upland rice responded well to low-input amendment treatments compared to that of grow-in soil with no input treatments. Both the treatments using 15 tons of cow manure and 15 tons of rice straw compost per hectare, each plus 300 kg of NPK, were suggested to be further research topics for treatments in upland soil of West Kalimantan.

scholarly journals Pengaruh Berbagai Perlakuan Nutrisi Larutan Hidroponik Pada Pertumbuhan Tanaman Kangkung (Ipomoea aquatica)

BIOSCIENTIAE ◽  
2021 ◽  
Vol 17 (2) ◽  
pp. 47
Author(s):  
Masriah Masriah
Keyword(s):  
Plant Growth ◽  
Nutrient Solution ◽  
Agricultural Land ◽  
Growth Parameters ◽  
Dry Weight ◽  
Solution Concentration ◽  
Supply Source ◽  
Best Response ◽  
Randomized Design ◽  
The One

Hydroponic cultivation systems are often applied to overcome the shortage of agricultural land in this case food crops, especially vegetables. Nutrient Film Technique (NFT) is the one of various ways to grow crops hydroponically. Hydroponic systems are carried out without the use of soil media and it can be an alternative solution for the efficient use of land. Uniformity of nutrients and nutrient solution concentration levels required to be adjusted. Nutrient solution as a water supply source and minerals. Nutrition is an important factor for the growth and quality of hydroponic plants should be appropriate in terms of the number of ion composition of nutrients. This study aimed to determined the effect of various treatments of hydroponic nutrient solution on plant growth kale. This study used a completely randomized design (CRD) with 4 treatments and 5 replications. Kale seed sowing in the growing media rockwool and nourished by nutrient A, nutrient B, combination of nutrients A and B (3: 1), or a combination of nutrients A and B (1: 3). Plant growth parameters such as plant height, number of leaves, wet weight, dry weight, and dry weight without root measured. Data were analyzed using analysis of variance ANOVA and DMRT test with α = 95%. The results showed that affect the nutrient solution hydroponic plant growth kale. Kale plants with a combination of nutrient A and nutrient B ratio of 3: 1 (treatment C) give the best response compared with other treatments.

scholarly journals Shoot nutrient contents and vegetative melon plants growth at different pH levels of the nutrient solution

2019 ◽  
pp. 674
Author(s):  
José Maria Da Silva ◽  
Bruno do Nascimento Silva ◽  
Gustavo Andrés Iglesias Barrera ◽  
Rafaela da Silva Arruda ◽  
Paulo Cezar Rezende Fontes, Paulo Roberto Gomes Pereira
Keyword(s):  
Nutrient Solution ◽  
Mineral Content ◽  
Dry Weight ◽  
Solution Ph ◽  
Root Volume ◽  
Nutrient Contents ◽  
Leaf Nutrients ◽  
Randomized Design ◽  
Iron And Zinc ◽  
Completely Randomized Design

Melon plants development are determined by nutrient availability in the nutrient solution which is markedly influenced by the solution pH. The objective of this work was to evaluate the effects of hydroponic nutrient solution pH on growth and mineral content of melon plants. The plants were growth in nutrient solution at five pH levels (4, 5, 6, 7 and 8) in a completely randomized design with three replicates. At 40 days after transplanting were evaluated shoot and roots fresh and dry weight as well as the root volume. Leaf nutrients contents was also determined. It was concluded that it is essential to keep the nutrient solution pH at 6.0 in order to obtain plants with high leaf number, fresh and dry root mass, root volume and iron and zinc contents in the leaves.

scholarly journals Growth and nutrient uptake of coffee seedlings cultivated in nutrient solution with and without silicon addition

Revista CERES ◽  
2012 ◽  
Vol 59 (3) ◽  
pp. 392-398 ◽  
Author(s):  
Ana Catarina Monteiro Carvalho Mori da Cunha ◽  
Mila Liparize de Oliveira ◽  
Enrique Combatt Caballero ◽  
Hermínia Emília Prieto Martinez ◽  
Paulo Cézar Rezende Fontes ◽  
...  
Keyword(s):  
Nutrient Solution ◽  
Biomass Accumulation ◽  
Dry Weight ◽  
Shoot Height ◽  
Silicon Addition ◽  
Silicon Uptake ◽  
Randomized Design ◽  
Silicon Accumulation ◽  
Micronutrient Uptake ◽  
Number Of Leaves

In recent years, the application of silicon (Si) in crops, including coffee, has become a common practice. The objective of this study was to assess the silicon uptake by coffee seedlings and its effects on plant growth, water and macro and micronutrient uptake. The research was conducted using nutrient solution in a greenhouse at the Departamento de Fitotecnia da Universidade Federal de Viçosa, in a completely randomized design with two treatments (with and without silicon) and three replications. Each plot consisted of three plants grown in a 800 mL vessel containing the treatment solutions. At every three days, water consumption, the concentration of OH - and the depletion of Si and K were assessed in the nutrient solutions. After 33 days, the plants were assessed with regard to their fresh and dry weight of leaves, roots and stem, shoot height and total length of the plant (shoot and root). Number of leaves and internodes, and the content and accumulation of silicon, macro, and micronutrients were also determined. The consumption of water, the amount of potassium uptake and, biomass accumulation were greater in plants grown in solution without silicon addition. However, the concentration of OH- in the solution and the amount of silicon uptake were greater in plants grown in solution with added silicon. Silicon accumulation was greater in leaves than in stem and roots. Silicon decreased coffee plant accumulation of phosphorus, potassium, calcium, zinc, copper and iron.

scholarly journals MECHANISM OF ALUMINUM TOXICITY AVOIDANCE IN TROPICAL RICE (Oryza sativa), MAIZE (Zea mays), AND SOYBEAN (Glycine max)

2016 ◽  
Vol 3 (1) ◽  
pp. 12 ◽  
Author(s):  
D. Nursyamsi ◽  
M. Osaki ◽  
T. Tadano
Keyword(s):  
Crop Production ◽  
Aluminum Toxicity ◽  
Upland Rice ◽  
Acid Soils ◽  
Dry Weight ◽  
Al Tolerance ◽  
Root Shoot Ratio ◽  
Tolerant Variety ◽  
Complete Nutrient Solution ◽  
Al Treatment

Planting Al tolerant crops is an economically justifiable approach in crop production on acid soils. Experiments were conducted to study the mechanisms of Al tolerance among species and varieties of tropical rice, maize, and soybean with previously known levels of Al tolerance. These varieties were hydroponically cultured in 0, 5, 10, and 30 mg l-1 Al with complete nutrient solution at pH 4. The results show that root/shoot ratio of dry weight at 10 mg l-1 Al treatment was an important parameter to indicate differential Al tolerance in maize. Oxalic acid exudation from roots cannot always explain the Al tolerance. Total organic acid concentration in roots at 10 mg l-1 Al treatment indicated a difference of Al tolerance in soybean and lowland rice. Aluminum translocation from roots to shoots was lower in  tolerant varieties than in sensitive varieties of soybean. Increased Al concentration in shoots with increased Al level in the solution was larger in soybean and maize than in lowland or upland rice. Among varieties of  soybean, the Al concentration in shoots increased drastically in Wilis (Al-sensitive variety) with increase Al level, while in Kitamusume (Al-tolerant variety) it did not.

scholarly journals Vegetative growth response of upland rice to Actinomycetes, Azospirillum and Azotobacter

2021 ◽  
Vol 911 (1) ◽  
pp. 012060
Author(s):  
Agung Gunawan ◽  
Yusminah Hala ◽  
Alimuddin Ali ◽  
Oslan Jumadi ◽  
Muhammad Junda
Keyword(s):  
Plant Height ◽  
Vegetative Growth ◽  
Rice Plant ◽  
Upland Rice ◽  
Dry Weight ◽  
Nitrogen Fixing ◽  
Nitrogen Fixing Bacteria ◽  
Total N ◽  
Rice Plants ◽  
Wet Weight

Abstract The research aims is to determine the suitability of nitrogen fixing bacteria, namely Actinomycetes, Azospirillum and Azotobacter with upland rice seeds to the speed of radicle formation and growth of upland rice plants. Upland rice plant growth measurement parameters include; speed of formation of radicle length, upland rice plant height, number of upland rice tillers, dry weight of the top of upland rice plants and roots of upland rice plants, wet weight of upland rice plants and roots of upland rice plants, and total N of upland rice plants and upland roots Testing the application of N2 fixing bacteria on upland rice plants on a laboratory scale was carried out to determine the suitability of microbes with upland rice plant seeds in vitro. The pot test was carried out to determine the suitability of the N2 fixing bacteria with the vegetative growth of upland rice plants in vivo. Data were analyzed using ANOVA with Duncan’s advanced test. The results showed that upland rice plants inoculated with Actinomycetes, Azospirillum and Azotobacter showed significantly different growth from upland rice plants without nitrogen fixing bacteria treatment, namely the radicle formation speed and radicle length, plant height, number of tillers, wet weight, dry weight, and total N (%) plants. It can be concluded that the inoculation of nitrogen-fixing bacteria on upland rice plants has a significant effect on plant vegetative growth parameters and plant nitrogen content.

scholarly journals KETERSEDIAAN P, SERAPAN P DAN SI OLEH TANAMAN PADI GOGO (Oryza sativa. L) PADA LAHAN ULTISOL YANG DIAPLIKASIKAN SILIKAT DAN PUPUK FOSFAT

2018 ◽  
Vol 8 (2) ◽  
pp. 9 ◽  
Author(s):  
Zulputra Zulputra ◽  
Nelvia Nelvia
Keyword(s):  
Oryza Sativa ◽  
Upland Rice ◽  
Oryza Sativa L ◽  
Phosphate Fertilizer ◽  
Rice Crop ◽  
Rice Plants ◽  
Randomized Design ◽  
Two Factors ◽  
Completely Randomized Design ◽  
Four Levels

The research was conducted from  August 2014 to Januari 2015 in the Ultisol Land, Pematang Berangan Village, Rokan Hulu Regency, Riau Province. The study aims to determine the availability of P, P and Si uptake by upland rice plants granting silicate and phosphate fertilizer on Ultisol land. The form of this research is experimental factorial completely randomized design consist of two factors. The first factor is silicate consists of four levels (0, 50, 75, and 100 kg SiO2/ha), while the second factor is phosphate fertilizer consists of four levels (0, 36, 54, and 72 kg P2O5/ha), each combination was repeated three times. The results showed that administration of silicates and phosphates increase the availability of P, P and Si uptake of upland rice crop. Giving of 100 kg SiO2 and 36 kg P2O5 per hectare increase  uptake of P and Si, each respectively increased by 208 % and 218 % compared without silicates and phosphates fertilizer.

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