scholarly journals Effect of Saline Stress and Calcium Nitrate on Lettuce Grown on Coconut Fiber

2018 ◽  
Vol 10 (11) ◽  
pp. 259
Author(s):  
Francisco de A. de Oliveira ◽  
Isabelly C. da S. Marques ◽  
Ana Jacqueline de Oliveira Targino ◽  
Carla J. X. Cordeiro ◽  
Mychelle K. T. de Oliveira ◽  
...  
Keyword(s):  
Leaf Area ◽  
Nutrient Solution ◽  
Block Design ◽  
Calcium Nitrate ◽  
Dry Weight ◽  
Saline Stress ◽  
Coconut Fiber ◽  
Randomized Block Design ◽  
Leaf Succulence ◽  
Nutrient Solutions

This study aimed to evaluate the use of saline solutions enriched with calcium nitrate in the production of lettuce grown in coconut fiber. The experiment was carried out from July to August 2017 in a greenhouse, at the Federal Rural University of the Semi-Arid Region (UFERSA), Mossoró-RN, Brazil. A randomized block design was used, in 2 × 5 factorial scheme, with three replicates. Treatments resulted from the combination of two lettuce cultivars [Elba (Curly) and Irene (Crisphead)] and five nutrient solutions (S1- standard nutrient solution; S2-S1 + NaCl (28.48 mmol L-1); S3-S2 + Ca(NO3)2 (6.89 mmol L-1); S4-S2 + Ca(NO3)2 (9.15 mmol L-1); S5-S2 + Ca(NO3)2 (11.43 mmol L-1)]. Plants were harvest 30 days after transplantation and the following variables were analyzed: head diameter, stem diameter, number of leaves, fresh weight, dry weight, leaf area, specific leaf area and leaf succulence. The cv. Irene (Crisphead) is more tolerant to nutrient solution salinity compared with the cv. Elba (Curly). Nutrient solutions enriched with 50 and 100% of Ca(NO3)2 promoted better performance of the cultivars Elba and Irene, respectively, fertigated with saline nutrient solution.

scholarly journals Growth and yield of gherkin cultivars in coconut fiber fertigated with nutrient solutions

2020 ◽  
Vol 24 (11) ◽  
pp. 741-748
Author(s):  
Francisco de A. de Oliveira ◽  
Mychelle K. T. de Oliveira ◽  
Sandy T. dos Santos ◽  
Jessilanne P. B. M. Costa ◽  
José F. de Medeiros ◽  
...  
Keyword(s):  
Nutrient Solution ◽  
Block Design ◽  
Technical Information ◽  
Growth And Yield ◽  
Coconut Fiber ◽  
Randomized Block Design ◽  
Nutrient Solutions

ABSTRACT Substrate cultivation has been gaining interest from vegetable producers, however technical information for many crops is still recent, such as the gherkin, especially regarding the nutrient solution. This study was developed with the objective of evaluating the performance of three gherkin cultivars (Do Norte, Liso de Calcutá and Liso Gibão) grown in coconut fiber and fertigated with nutrient solutions of different concentrations (50, 75, 100 and 125% of the recommendation for melon), using a randomized block design, in a 3 x 4 factorial scheme, with four repetitions and plots composed of three plants. Growth and production variables were evaluated. In general, cv. Liso de Calcutá produced heavier fruits (35.69 g fruit-1), however cv. Liso Gibão produced an average of 21.6 fruits plant-1, being more productive (542.19 g planta-1). The cultivars Do Norte and Liso de Calcutá were less demanding on nutrients. In order to obtain the highest production of gherkin fruits cultivated in coconut fiber, fertigations must be carried out using nutrient solutions diluted in 50% for the cultivars Do Norte and Liso de Calcutá, while for cv. Liso Gibão it is recommended to use nutrient solution diluted in 75% of the concentration of nutrients recommended for the cultivation of melon.

scholarly journals RESPON PERTUMBUHAN BIBIT CENGKEH (Syzgium aromaticum (L.) Merr dan Perry) KULTIVAR ZANZIBAR AKIBAT PUPUK NPK DAN PUPUK ORGANIK CAIR

2017 ◽  
Vol 4 (1) ◽  
pp. 59
Author(s):  
Yudi Yusdian ◽  
Ridwan Haris
Keyword(s):  
Leaf Area ◽  
Sea Level ◽  
Soil Type ◽  
Block Design ◽  
Organic Fertilizer ◽  
Dry Weight ◽  
Stem Height ◽  
West Java ◽  
Randomized Block Design ◽  
Npk Fertilizer

The objective of this research was to study the response on the growth of clove seedling cultivar Zanzibar as the result of using  NPK Phonska fertilizer dosage and liquid organic fertilizer  concentration and to find out the acurate dosage of  NPK Phonska and liquid organic fertilizer  “Getoe”. The experiment was conducted at Kampung Ciherang Desa Gunungtua Kecamatan Cijambe Kabupaten Subang, West Java. The altitude is about 600 m above sea level, the soil type is Ultisol (pH 5,4), the average of rainfall was 1622,10 mm/year and the type of rainfall is C according to Schmidt and Ferrguson (1951). The experiment from March 2014 until June 2014. The experiment was arranged in Randomized Block Design (RBD) consisted of  six treatments, i.e :  A (2,5 g NPK + 0 cc/L of water POC Getoe), B (1,5 g NPK + 2,5 cc/L of water POC Getoe), C (2,0 g NPK + 2 cc/L of water POC Getoe), D (2,5 g NPK + 1,5 cc/L of water POC Getoe), E (3,0 g NPK + 1,0 cc/L of water POC Getoe) and F (3,5 g NPK + 0,5 cc/L of water POC Getoe) and replicated six times respectively. The result of this research showed that combined 2,5 g NPK fertilizer and 1,5 cc Getoe liquid organic fertilizer  concentration  gave the better effect on stem height, leaves of number, leaf area, dry weight of plant and dry weight of root the clove seedling cultivar Zanzibar. 

scholarly journals RESPONS PERTUMBUHAN DAN HASIL TANAMAN SELEDRI (APIUM GRAVEOLENS L.) TERHADAP MEDIA TANAM DAN KONSENTRASI LARUTAN NUTRISI YANG BERBEDA PADA WICK SYSTEM

2021 ◽  
Vol 46 (2) ◽  
pp. 232
Author(s):  
Maria Ulfa ◽  
Hadi Pranoto ◽  
Susylowati Susylowati
Keyword(s):  
Nutrient Solution ◽  
Block Design ◽  
Dry Weight ◽  
Orthogonal Test ◽  
Growth And Yield ◽  
Apium Graveolens ◽  
Optimum Point ◽  
Significant Difference ◽  
Nutrient Solutions ◽  
Polynomial Orthogonal

This research aims to find out 1) the interaction between the medium of planting and the concentration of nutrient solutions to the growth and yield of celery plants hydroponically. 2) types of planting media that can give different influences on the growth and yield of celery plants, and 3) concentration of nutrient solution that provides the best growth and yield of celery plants in different planting media.The research was conducted from December 2019 to February 2020 at the Integrated Laboratory of the Faculty of Agriculture of Mulawarman University, Samarinda. The research used factorial exsperiment 3×4 on Randomized Completely Block Design (RCBD), replicated three times with each treatment consisting of three plants. The first factor is the planting medium consisting of rockwool, charcoal husk, and combination of charcoal husk + tea amps. The second factor is the concentration of AB Mix nutrient solution consists of 500, 1,000, 1,500, and 2,000 ppm. The data was analyzed with test F and continued Least Significant Difference (LSD) test with a level of 5%.  The results showed that there is an interaction between planting media and concentration of nutrient solution in the growth and yield of celery plants. The interaction between the combination of charcoal planting media + tea pulp and concentration of 1,500 ppm is not real with the interaction of rockwool planting media and concentration of 1,500 ppm. From various types of planting media used, charcoal husk planting media provides the best influence on the growth and yield of celery plants. Based on polynomial orthogonal test the concentration of nutrient solution with an optimum point of 1,460.84 ppm affects the growth and yield of celery plants with a maximum dry weight of 2.14 g.

scholarly journals Calcium and potassium contents in nutrient solution on Phoma leaf spot intensity in coffee seedlings

Revista CERES ◽  
2016 ◽  
Vol 63 (4) ◽  
pp. 486-491 ◽  
Author(s):  
Aricléia de Moraes Catarino ◽  
Edson Ampélio Pozza ◽  
Adélia Aziz Alexandre Pozza ◽  
Leone Stabile dias Santos ◽  
Gabriel Brandão Vasco ◽  
...  
Keyword(s):  
Nutrient Solution ◽  
Leaf Spot ◽  
Block Design ◽  
Fungal Diseases ◽  
Growth Chamber ◽  
Spot Intensity ◽  
Controlled Conditions ◽  
Progress Curve ◽  
Randomized Block Design ◽  
Nutrient Solutions

ABSTRACT Coffee is one of the main export commodities of Brazilian agribusiness. Phoma leaf spot [Phoma tarda (Stewart) Boerema & Bollen] is one of the most important coffee fungal diseases in Brazil. Therefore, this study aimed to evaluate the intensity of Phoma leaf spot in coffee seedlings supplied with different rates of Ca+2 and K+. The study was conducted under controlled conditions in a growth chamber, at the Department of Phytopathology - UFLA, from February 2010 to December 2011. The assay was repeated twice under the same conditions. The nutrient solutions consisted of five concentrations of K+ (3, 4, 5, 6, 7 mmol L-1) and Ca+2 (2, 4, 6, 8 and 10 mmol L-1). The experiment was arranged in a randomized block design, with 25 treatments and three replicates, with two plants per plot. The areas under incidence progress curve (AUIPC) and severity (AUSPC) were calculated. At the lowest rate of Ca2+ (2 mmol L-1) and highest K+ (6 and 7 mmol L-1), approximately, the AUIPC was the smallest. For the AUSPC, the lowest rates of Ca+2 and K+ resulted in the lowest severities. Supply of Ca+2 and K+ in nutrient solution reduced AUIPC and AUSPC of Phoma leaf spot, and these nutrients can be recommended for the management of the disease.

scholarly journals Respon Pertumbuhan Bibit Salak (Salacca Zallaca) terhadap Dosis Spora Endomikoriza pada Media Pembawa Pasir Kuarsa dan Zeolit

2020 ◽  
Vol 10 (1) ◽  
pp. 18
Author(s):  
NI KADEK ARYANI ◽  
I NYOMAN RAI ◽  
NI NYOMAN ARI MAYADEWI
Keyword(s):  
Leaf Area ◽  
Quartz Sand ◽  
Block Design ◽  
Dry Weight ◽  
Nutrient Content ◽  
Root Infection ◽  
Shoot Dry Weight ◽  
Randomized Block Design ◽  
Total Dry Weight ◽  
Leaf P

Response of Salak Seedlings (Salacca Zallaca) Growth to Dosage of Endomycorrhizal Spore in Quartz Sand and Zeolite Carrier Media. This study aimed to study the effect of endomycorrhizal spore dosage and carrier media that were applied directly to the roots of salak plants. The research designed as factorisl by using Randomized Block Design with 2 treatment factors. The first factor was number of endomycorrhiza spores consists of 4 levels i.e 0, 75, 150, and 225 spores per 500 g carrier media per polybag, while the second factor was the type of carrier media consist of 2 levels i.e zeolite and quartz sand. The results showed that interaction between endomycorrhizal spore dosage with   carrier   media   did   not   significantly   influence   the   growth   of   salak   seedlings. Endomycorrhizal spores in doses of 75, 150 and 225 spores per polybag increased root infection and leaf P nutrient content compared to control, but seed height, leaf area, shoot dry weight, root dry weight and total dry weight of seedlings not significantly difference. The zeolite carrier media caused root infection by mycorrhizal was higher than quartz sand media, but the P nutrient uptake and seedling growth were not significantly different. Based on the results of this study it is necessary to make a longer observation of the effect of endomycorrhizal spore doses and carrier media on the growth of salak seedlings.

scholarly journals Effects of Varying Sulfate Concentrations on Growth and Mineral Nutrition of the Greenhouse Tomato

HortScience ◽  
1995 ◽  
Vol 30 (4) ◽  
pp. 769C-769
Author(s):  
J. Lopez ◽  
L.E. Parent ◽  
N. Tremblay ◽  
A. Gosselin
Keyword(s):  
Nutrient Solution ◽  
Mineral Nutrition ◽  
Major Ions ◽  
Block Design ◽  
Dry Weight ◽  
Sulfate Ions ◽  
Tomato Plants ◽  
Greenhouse Tomato ◽  
High Concentrations ◽  
Nutrient Solutions

In hydroponic recirculating systems, sulfate ions can accumulate to excessive levels and interfere with other nutrient ions. The objective of this research was to determine the effects of four sulfate concentrations on growth and mineral nutrition of greenhouse tomato plants (Lycopersicon esculentum Mill. cv. Trust). Tomato seeds were sown in flats and subsequently transplanted into rockwool slabs. Ten days after transplanting, plants were given four sulfate concentrations in nutrient solutions (S0 = 0.1, S1 = 5.2, S2 = 10.4, and S4 = 20.8 mM). The plots were arranged in a randomized complete-block design with four replications. Treatment S0 reduced dry weight of the top portion of the plant. A sulfate shortage in the nutrient solution decreased S concentrations in the leaf and decreased fruit number. Activities and concentrations of major ions in solutions expressed in mM or as row-centered logratios were correlated with corresponding foliar concentrations expressed in grams of nutrient per kilogram of dry matter or as row-centered logratios. Data were presented in this manner in order to explore interactive models describing relationships between mineral composition of both nutrient solutions and plant tissues. High concentrations of sulfate ions in the nutrient solution up to 20.8 mM did not affect tomato growth or yield. Tomato plants appeared prone to sulfate deficiency, but tolerant to sulfate concentrations up to 20.8 mM in the nutrient solution.

scholarly journals Morfofisiologi Ratun Padi Sistem Tanam Benih Langsung di Lahan Pasang Surut

2017 ◽  
Vol 44 (3) ◽  
pp. 228 ◽  
Author(s):  
Evriani Mareza ◽  
Zainal Ridho Djafar ◽  
Rujito Agus Suwignyo ◽  
Dan Andi Wijaya
Keyword(s):  
Leaf Area ◽  
Crop Production ◽  
Block Design ◽  
Soil Surface ◽  
Dry Weight ◽  
Direct Seeding ◽  
Randomized Block Design ◽  
Tidal Swamp ◽  
Number Of Leaves ◽  
Cutting Height

<p>ABSTRACT<br /><br />The morphophysiology of ratoon is different from the main plant of rice and was influenced by location and cultivation.This research was intended to evaluate morphophysiology characters of rice ratoon planted by direct seeding system in tidal swamp at various stubble cutting height. The experiment was conducted in November 2013-April 2014 at tidal swamp overflow type B in Telang Sari Village, District of Tanjung Lago, Banyuasin, South Sumatra Province. The experiment used randomized block design with 5 replications. Treatment was stubble cutting height 10, 20, 30, 40 and 50 cm above the soil surface. Rice was planted at 4 m x 5 m plot, the distance between plot 1 m. Data were analyzed by test of variance and 5% HSD test. Morphophysiological characters of rice ratoon were influenced by stubble cutting height. Cutting height of 20-40 cm above soil surface increased the ratoon number of tillers per hill, leaf area per hill, dry weight per hill, percentage of empty grains per panicle, grain weight per hill and percentage ratoon/main crop production per hill. The higher stubble cutting, the lower the number of leaves per tiller, leaf area per tiller, carbohydrate content, and number of grains per panicle of ratoon, however it accelerated age of flowering and harvesting. <br /><br />Keywords: direct seeding system, ratoon system, rice growth and production, stubble cutting height<br /><br /></p>

scholarly journals PENGARUH PUPUK ORGANIK CAIR NASA TERHADAP PERTUMBUHAN BIBIT TANAMAN JATI PUTIH (Gmelina arborea Roxb)

AGRICA ◽  
2020 ◽  
Vol 6 (1) ◽  
pp. 10-22
Author(s):  
Josina Irene Brigetha Hutubessy
Keyword(s):  
Leaf Area ◽  
Block Design ◽  
Organic Fertilizer ◽  
Dry Weight ◽  
Fresh Weight ◽  
Plant Seed ◽  
Optimum Dosage ◽  
Randomized Block Design ◽  
Seed Growth ◽  
Number Of Leaves

This research aims to determine the effect of concentration of organic fertilizer Super NASA to the growth of seeds of white teak and to know the optimum dosage of organic fertilizer Super NASA can increase the growth of NASA plant seed white teak. The design used in this study was a Randomized Block Design with the treatment used is N0: without fertilizer Super NASA NASA, N1: Fertilizer NASA7 .5 ml seeds-1, N2: Fertilizer NASA 15 ml seeds-1, N3: Fertilizer NASA 22.5 ml seeds-1, N4: Fertilizer NASA 30 ml seeds-1. Variable observation in this study is the height of the plant, number of leaves, leaf area, fresh weight tan-1, fresh and dry weight oven tan-1. The results showed that the granting of Fertilizer NASA exerted a highly significant effect on the height of plant (23,65%), the number of leaves is not significant, leaf area (53,61%), fresh weight tan-1 (60,89%) and dry weight tan-1 (55,43%). The optimum dosage of Fertilizers NASA give the seed growth of white teak is best on the seed-1is 30 ml.

scholarly journals Production of gherkin seedlings in coconut fiber fertirrigated with different nutrient solutions

Revista CERES ◽  
2016 ◽  
Vol 63 (5) ◽  
pp. 698-705
Author(s):  
Francisco de Assis de Oliveira ◽  
Maria da Saúde de Souza Ribeiro ◽  
Mychelle Karla Teixeira de Oliveira ◽  
Daniele Campos Martins ◽  
Maria Lilia de Souza Neta ◽  
...  
Keyword(s):  
Leaf Area ◽  
Dry Matter ◽  
Dry Weight ◽  
Ionic Concentration ◽  
Vegetable Production ◽  
Coconut Fiber ◽  
Main Root ◽  
Key Factor ◽  
Number Of Leaves ◽  
Nutrient Solutions

ABSTRACT Seedling quality is a key factor to achieve success in vegetable production. The present work aimed to evaluate the production of gherkin seedlings in substrate of coconut fiber fertirrigated with different concentrations of nutrients. The experimental design was completely randomized in a 3 × 5 factorial with four replications. The treatments consisted of combinations of three cultivars of gherkin (Do Norte, Liso de Calcutá, e Liso Gibão) with five concentrations of nutrients in the solution (0, 25, 50, 75, and 100%). The nutrient solution, considered standard, matches the recommended solution for melon in hydroponic systems. We evaluated the variables: chlorophyll index, shoot length, number of leaves, stem diameter, main root length, dry weight of leaves, roots, and stem, mass of total dry matter, leaf area, specific leaf area, and leaf area ratio. All variables were affected by the ionic concentration in nutrient solutions. The use of coconut fiber in the production of gherkin seedlings is more efficient with nutrient solutions in concentrations ranging from 75 to 100% of the recommended solution for melon cultivation.

scholarly journals Salinity and cationic nature of irrigation water on castor bean cultivation

2018 ◽  
Vol 22 (4) ◽  
pp. 267-272 ◽  
Author(s):  
Geovani S. de Lima ◽  
Reginaldo G. Nobre ◽  
Hans R. Gheyi ◽  
Lauriane A. dos A. Soares ◽  
Carlos A. V. de Azevedo ◽  
...  
Keyword(s):  
Water Relations ◽  
Irrigation Water ◽  
Castor Bean ◽  
Sandy Loam ◽  
Cell Damage ◽  
Block Design ◽  
Saline Stress ◽  
Randomized Block Design ◽  
Relative Water ◽  
Leaf Succulence

ABSTRACT This study aimed to evaluate the water relations, cell damage percentage and growth of the castor bean cv. ‘BRS Energia’ as a function of salinity and cationic nature of the water used in irrigation. The experiment was conducted in drainage lysimeters under greenhouse conditions in eutrophic Grey Argisol of sandy loam texture. Six combinations of water salinity and cations were studied (S1 - Control; S2 - Na+, S3 - Ca2+, S4 - Na+ + Ca2+; S5 - K+ and S6 - Na+ + Ca2+ + Mg2+), in a randomized block design with four replicates. In the control (S1), plants were irrigated with 0.6 dS m-1 water, whereas the other treatments received 4.5 dS m-1 water, obtained by adding different salts, all in the chloride form. Higher relative water content in the leaf blade of plants irrigated with K+-salinized water associated with leaf succulence are indicative of tolerance of the castor bean cv. ‘BRS Energia’ to salinity. Saline stress negatively affected castor bean growth, regardless of cationic nature of water. Among the ions studied, ‘BRS Energia’ castor bean was more sensitive to the presence of sodium in the irrigation water, in terms of both water relations and leaf succulence.

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