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 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 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 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 Response of Tomato Plants (Solanum lycopersicum) to Stress Induced by Sb(III)

2016 ◽  
Vol 24 (1) ◽  
pp. 42-47 ◽  
Author(s):  
Matúš Peško ◽  
Marianna Molnárová ◽  
Agáta Fargašová
Keyword(s):  
Protein Content ◽  
Solanum Lycopersicum ◽  
Chlorophyll A ◽  
Translocation Factor ◽  
Dry Weight ◽  
The Other ◽  
Total Carotenoids ◽  
Tomato Plants ◽  
Chlorophyll A And B ◽  
High Concentrations

AbstractPresented study evaluates effects of various Sb(III) concentrations on tomato plants (Solanum lycopersicum) cultivated hydroponically. Visual symptoms of antimony toxicity were observed only at two highest applied concentrations (50 and 100 mg/L). Dry weight of aboveground parts decreased significantly in variants treated with 25, 50 and 100 mg/L Sb(III), by ~12, 35 and 65 %, respectively, in comparison to the control. Statistically significant decrease of chlorophyll a and b was observed only after application of two highest studied concentrations 50 and 100 mg/L Sb(III). On the other hand concentration of total carotenoids in leaves rose with increasing external Sb(III) concentration. High concentrations (50 and 100 mg/L) of Sb(III) in nutrient solution caused that protein content in leaves dropped by ~20 and 39% relative to control. Accumulation of antimony in roots was about 5- (10 mg/L) to 27-times (25 mg/L) greater than that in shoots. The highest BAF factor value determined for shoots was ~55 at 10 mg/L Sb(III) and for roots it was ~821 at 50 mg/L Sb(III). Translocation factor values were in whole studied concentration range 5 – 100 mg/L Sb(III) < 1. The most effective translocation of antimony from roots to shoots was observes for variants treated with 10 mg/L of Sb(III).

scholarly journals Evaluasi Ketahanan Plasma Nutfah Kenaf terhadap Cekaman Fe pada pH Masam Evaluation of Kenaf Germplasm to High Fe Concentration and Low pH Resistance

2016 ◽  
Vol 1 (1) ◽  
pp. 28
Author(s):  
Rully Dyah Purwati ◽  
. Marjani
Keyword(s):  
Plant Breeding ◽  
Nutrient Solution ◽  
Block Design ◽  
Dry Weight ◽  
Low Ph ◽  
Green House ◽  
Neutral Ph ◽  
Excess Fe

<p>Penelitian bertujuan untuk mendapatkan informasi ketahanan plasma nutfah kenaf pada lingkungan konsentrasi Fe yang ekstrim dan pH masam telah dilaksanakan di Laboratorium dan Rumah Kaca Pemuliaan Balittas, Malang, mulai bulan Januari–Desember 2008. Penelitian dilaksanakan dengan menggunakan ran-cangan acak kelompok yang diulang 3 kali. Bahan penelitian terdiri dari 100 aksesi kenaf yang diuji di labo-ratorium pada tingkat bibit. Pada setiap ulangan, masing-masing aksesi kenaf diuji sebanyak 20 bibit ber-umur 3–4 hari, yang ditanam pada stereo-<em>foam</em> berlapiskan kasa strimin. Bibit dipelihara pada larutan nu-trien ”<em>Yoshida”</em> dan diberi perlakuan konsentrasi unsur Fe 350 ppm dan pH 4. Sebagai pembanding diguna-kan nutrien yang sama dengan konsentrasi Fe = 0 ppm dan pH netral. Pengamatan dilakukan terhadap pan-jang akar, panjang hipokotil, berat kering akar, dan berat kering hipokotil. Hasil penelitian menunjukkan bahwa ketahanan 100 aksesi kenaf yang diuji terhadap kelebihan Fe pada pH masam bervariasi; tetapi ada 8 aksesi yang tergolong tahan, yaitu aksesi nomer 449, 461, 476, 782, 785, 833, 836, dan 839.</p><p>The objective of this experiment was to find out information of kenaf germplasm resistance to high Fe con-centration and low pH of media. The experiment was conducted in laboratory and green house of plant breeding division, IToFCRI, Malang from January to December 2008. The experiment was designed in ran-domized block design with three replications. One hundred accessions of kenaf seedlings were evaluated in laboratory. Each accession in each replicate consisted of 20 seedlings (3–4 days old) were planted in stereo-foam trays with plastic gauze layer. Seedlings were maintained in “Yoshida” nutrient solution and treated with 350 ppm Fe concentration and pH 4. The same media with 0 ppm Fe and neutral pH was used as a control. The parameters observed were root and hypocotyls length, root and hypocotyls dry weight. Results of this experiment showed that the resistance to excess Fe in low pH of 100 accessions evaluated were va-ried. Out of 100 accessions, eight accessions were categorised as resistant i.e. accession no. 449, 461, 476, 782, 785, 833, 836, and 839.</p>

scholarly journals Potted Gerbera Production in a Subirrigation System Using Low-concentration Nutrient Solutions

HortScience ◽  
2004 ◽  
Vol 39 (6) ◽  
pp. 1283-1286 ◽  
Author(s):  
Youbin Zheng ◽  
Thomas Graham ◽  
Stefan Richard ◽  
Mike Dixon
Keyword(s):  
Nutrient Solution ◽  
Final Stage ◽  
Crop Production ◽  
Dry Weight ◽  
Interveinal Chlorosis ◽  
Nutrient Levels ◽  
Stage 4 ◽  
Total Dry Weight ◽  
Substrate Ph ◽  
Nutrient Solutions

To determine whether currently used commercial nutrient solution concentrations can be reduced during the final stage (last 4 to 5 weeks) of production of potted gerbera (Gerbera jamesonii `Shogun') under recirculating subirrigation conditions, plants were grown under one of four nutrient levels (10%, 25%, 50%, and 100% of full strength). Nutrient concentration levels did not affect leaf area, flower number and appearance, and plant total dry weight. There were no significant differences in the greenness (as measured by SPAD meter) of leaves from plants that received the 50% and 100% strength nutrient solutions. However, leaves from plants that received the 10% and 25% strength solution showed significantly less greenness than that of the plants that received 50% and 100% strength nutrient solutions. There were interveinal chlorosis symptoms on the younger leaves of some plants in the 10% and 25% strength nutrient treatments. It is suspected that this interveinal chlorosis was due to iron (Fe) deficiency caused by the increased substrate pH. It is concluded that the nutrient solution concentrations typically used for potted gerbera production in commercial greenhouses at the final stage (4 to 5 weeks) under recirculating subirrigation conditions, can be safely reduced by at least 50% without adversely affecting crop production. Nutrient salts accumulated in the top section of the growth substrate under all treatments levels; however, no phytotoxic effects were observed. No differences in water use (141 mL per plant per day) were observed amid the various nutrient levels. Fertilizer inputs were reduced in the 50%, 25%, and 10% treatments by 54%, 75%, and 90% respectively, relative to the 100% treatment. After 4 weeks under recirculating conditions, the qualities of the nutrient solutions were still within acceptable limits.

scholarly journals Pemberian Larutan Hara untuk Budidaya Tanaman Akar Wangi (Vetiveria zizanioides (L.) Nash) Menggunakan Teknologi Hidroponik Sistem Terapung (THST)

2015 ◽  
Vol 6 (2) ◽  
pp. 75
Author(s):  
Siti Aisyah Rohmatus Sa’adah ◽  
Slamet Susanto
Keyword(s):  
Nutrient Solution ◽  
Root Development ◽  
Block Design ◽  
Dry Weight ◽  
Solution Concentration ◽  
Growth And Yield ◽  
Vetiveria Zizanioides ◽  
Poor Growth ◽  
Floating System ◽  
Root Cutting

<p>ABSTRACT</p><p>The  objective  of  this  experiment  was  to  determine  the  effect  of concentration  of  nutrient solution  on  growth  and  yield  of  vetiver (Vetiveria zizanioides  (L.)  Nash)  Verina  2  variety  using Hydroponic Floating System Technology (HFST). This experiment  was  conducted in the greenhouse of Cikabayan Bawah,  Experimental Farm  IPB,  with elevation of 240 m above sea level (asl) from December 2013 until February 2014.  The experiment  was based on a  randomized complete  block design  which consisted  of two experiments: (1) a plant without root  cutting (3 replicates), (2) plants with root cutting (6 replicates), with one factor and three-levels: 200, 400, and 800 nutrient solution concentrations.  The  results  showed  that  the  concentration of  the  nutrient  solution  had  significant effect  on  plant  height, number  of tillers,  number  of  new  saplings,  shoot  dry  weight  in  plants  that have not done cutting the roots, and root fresh weight in plants that have been done cutting the roots. Treatment  of  nutrient  solution  concentration  of  200  ppm resulted  in  poor  growth  plants.  Vetiver plants grown with the provision of nutrient solution concentration between 400 to 800 ppm acquired a better canopy growth and root development, therefore HFST could be applied to the cultivation of vitiver  on  the  concentration  of  the  nutrient  solution  to produce  a  better  canopy  growth  and  root development.</p><p>Key words: floating system, hydroponic, nutrient solution, vetiver</p><p> </p><p>ABSTRAK</p><p>Penelitian  ini  bertujuan  untuk  mengetahui  pengaruh  konsentrasi  larutan hara  terhadappertumbuhan  dan  hasil  akar  wangi  (Vetiveria  zizanioides (L.) Nash)  varietas  Verina  2  dengan menggunakan Teknologi Hidroponik Sistem Terapung (THST). Penelitian ini merupakan penelitian lanjutan  dari  penelitian sebelumnya  dan  dilakukan  di  rumah  kaca  Kebun  Penelitian Cikabayan Bawah IPB, dengan elevasi 240 m di atas permukaan laut (dpl) mulai dari bulan  Desember 2013 hingga  bulan  Februari  2014.  Penelitian disusun berdasarkan  rancangan kelompok  lengkap  teracak (RKLT)  yang terdiri  atas  dua  percobaan:  (1)  tanaman  tanpa  pemotongan  akar  (3 ulangan),  (2) tanaman  dengan  pemotongan akar (6 ulangan), dengan satu faktor dan tiga taraf: konsentrasi larutan hara  200,  400,  dan  800  ppm. Hasil penelitian  menunjukkan  bahwa  konsentrasi  larutan  hara berpengaruh nyata pada tinggi tanaman, jumlah anakan, jumlah anakan baru, dan bobot  kering tajuk pada  tanaman  tanpa  pemotongan  akar,  serta  berpengaruh  nyata terhadap bobot  basah  akar  pada tanaman  dengan  pemotongan  akar. Perlakuan  konsentrasi  larutan  hara  200  ppm  menghasilkan pertumbuhan dan  perkembangan  tanaman  yang  tidak  baik.  Tanaman  akar  wangi  yang ditanam dengan pemberian  konsentrasi  larutan  hara  antara  400  sampai 800 ppm mempunyai  pertumbuhan tajuk dan perkembangan akar tanaman yang lebih baik, oleh karena itu THST dapat diterapkan untuk budi  daya  akar  wangi pada konsentrasi  larutan  hara  tersebut  sehingga  dapat menghasilkan pertumbuhan tajuk dan perakaran yang baik.</p><p>Kata kunci: sistem terapung, hidroponik, larutan hara, akar wangi</p>

scholarly journals Current Fertilizer Input for Pot Gerbera Production Can Be Reduced by More than 50%

HortScience ◽  
2004 ◽  
Vol 39 (4) ◽  
pp. 775D-775
Author(s):  
Youbin Zheng* ◽  
Thomas Graham ◽  
Stefan Richard ◽  
Mike Dixon
Keyword(s):  
Nutrient Solution ◽  
Crop Production ◽  
Negative Impact ◽  
Dry Weight ◽  
Flower Number ◽  
Leaf Chlorophyll ◽  
Phytotoxic Effect ◽  
Total Dry Weight ◽  
Nutrient Solutions

Pot gerbera (Gerbera jamesonii Var. `Shogun') plants were subirrigated with one of four nutrient solutions (10, 25, 50, and 100% of full strength) in order to determine whether currently used commercial nutrient solution concentrations can be reduced without negative impact on crop production. Nutrient concentration levels did not affect leaf area, flower number and appearance, and plant total dry weight. There were no significant differences in leaf chlorophyll content between the plants that received the 50 and 100% strength nutrient solutions. It is concluded that nutrient solution concentrations typically used in commercial greenhouse, for pot gerbera production, can be safely reduced by at least 50% without adversely affecting crop production. Nutrients accumulated in the top section of the growth substrate under all treatment levels; however, no phytotoxic effect was observed. Fertilizer inputs were reduced in the 50%, 25%, and 10% treatments by 54%, 75%, and 90% respectively. After 4 weeks recirculating, the quality of the nutrient solutions was still within acceptable limits.

scholarly journals THE INFLUENCE OF CONTINUOUS AND INTERMITTENT CO2 ENRICHMENT ON THE GROWTH, PRODUCTIVITY, AND PHYSIOLOGY OF GREENHOUSE TOMATO

HortScience ◽  
1992 ◽  
Vol 27 (6) ◽  
pp. 641a-641
Author(s):  
A. Gagnon ◽  
S. Yelle ◽  
A. Gosselin
Keyword(s):  
Reducing Sugars ◽  
Co2 Enrichment ◽  
Dry Weight ◽  
Carbon Dioxide Enrichment ◽  
Tomato Plants ◽  
Greenhouse Tomato ◽  
Plant Acclimation ◽  
Leaf Accumulation ◽  
Leaf Nitrate ◽  
Continuous Enrichment

The objective of this experiment was to examine the influence of continuous and intermittent carbon dioxide enrichment on the growth of greenhouse tomato plants. Tomato plants were grown under four CO2 regimes: Control at 330 ppm, continuous supply at 1000 ppm, and intermittent supply (1h supply/2 hours) at 1000 ppm and 2000 ppm. Carbon enrichment produced an increase in photosynthetic rate and plant dry weight, a decrease in leaf nitrate level, and leaf accumulation of reducing sugars and starch. A loss in efficiency was observed over time in plants grown under high atmospheric C02 concentration. However, intermittent carbon enrichment reduced the plant acclimation. Even with 32% less C02, intermittent enrichment at 1000 ppm produced yields 6% greater than continuous enrichment. The superior yield may be explained by preferential allocation of photosynthates to the fruit under intermittent supply.

scholarly journals Respon Pertumbuhan dan Hasil Tanaman Mentimun (cucumis sativus L.) Varietas Zatavy F1 terhadap Nutrisi Berbeda pada Sistem Hidroponik

2021 ◽  
Vol 9 (1) ◽  
pp. 62
Author(s):  
Asep Ikhsan Gumelar ◽  
Engkus Kusnadi ◽  
Lusiana Lusiana
Keyword(s):  
Plant Height ◽  
Cucumis Sativus ◽  
Block Design ◽  
Dry Weight ◽  
Fruit Weight ◽  
Growth And Yield ◽  
Cucumis Sativus L ◽  
Fruit Length ◽  
Nutrient Solutions ◽  
Fruit Diameter

This study aims to determine the effect of fertilizing nutrients that can increase the growth and yield of cucumber (Cucumis sativus L.) with hydroponic techniques. The research was conducted at the screen house of the Biotechnology Lab Research and Development Division of PT East West Seed Indonesia, in Benteng Village, Campaka District, Purwakarta Regency. This research was conducted in December 2017 until March 2018. This study used a randomized block design (RBD) with 9 replications. Planting factor is a nutrient solution consisting of N1 enza nutrition, N2 alfesindo nutrition, and N3 ewindo nutrition. Parameters observed were plant height, plant dry weight, fruit length, fruit diameter, number of planted fruit and crop fruit weight. The media used in this study was roasted husk charcoal. The results showed that the response of nutrient solutions was significantly different from observations of plant height, whereas the response of nutrient solutions to observations of dry weight, fruit length, fruit diameter, number of fruit plantations and fruit weight of plantations were not significantly different. The results showed that the best nutritional solution was ewindo nutritional solution.

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