Effect of concentration of nutrient solution and aeration on growth and dry matter partitioning in hydroponically grown young tomato plants.

1991 ◽  
Vol 29 (1) ◽  
pp. 27-33
Author(s):  
Soung Han CHI ◽  
Yutaka SHINOHARA ◽  
Yoshio SUZUKI
Keyword(s):  
Nutrient Solution ◽  
Dry Matter ◽  
Dry Matter Partitioning ◽  
Tomato Plants ◽  
Hydroponically Grown

scholarly journals Nitrogen for growth of stock plants and production of strawberry runner tips

Bragantia ◽  
2012 ◽  
Vol 71 (3) ◽  
pp. 394-399 ◽  
Author(s):  
Djeimi Isabel Janisch ◽  
Jerônimo Luiz Andriolo ◽  
Vinícius Toso ◽  
Kamila Gabriele Ferreira dos Santos ◽  
Jéssica Maronez de Souza
Keyword(s):  
Leaf Area ◽  
Nutrient Solution ◽  
Dry Matter ◽  
Nitrogen Concentration ◽  
Growth Period ◽  
Dry Matter Partitioning ◽  
Area Index ◽  
Camino Real ◽  
Nitrogen Concentrations ◽  
Crown Roots

The objective of this research was to determine growth and dry matter partitioning among organs of strawberry stock plants under five Nitrogen concentrations in the nutrient solution and its effects on emission and growth of runner tips. The experiment was carried out under greenhouse conditions, from September 2010 to March 2011, in a soilless system with Oso Grande and Camino Real cultivars. Nitrogen concentrations of 5.12, 7.6, 10.12 (control), 12.62 and 15.12 mmol L-1 in the nutrient solution were studied in a 5x2 factorial randomised experimental design. All runner tips bearing at least one expanded leaf (patent requested) were collected weekly and counted during the growth period. The number of leaves, dry matter (DM) of leaves, crown and root, specific leaf area and leaf area index (LAI) was determined at the final harvest. Increasing N concentration in the nutrient solution from 5.12 to 15.12 mmol L-1 reduces growth of crown, roots and LAI of strawberry stock plants but did not affect emission and growth of runner tips. It was concluded that for the commercial production of plug plants the optimal nitrogen concentration in the nutrient solution should be 5.12 mmol L-1.

scholarly journals Water relations of chives in function of salinity and circulation frequency of nutrient solutions

2019 ◽  
Vol 23 (5) ◽  
pp. 359-365 ◽  
Author(s):  
Fernando J. da Silva Júnior ◽  
José A. Santos Júnior ◽  
Manassés M. da Silva ◽  
Ênio F. de F. e Silva ◽  
Edivan R. de Souza
Keyword(s):  
Water Use Efficiency ◽  
Water Content ◽  
Water Use ◽  
Nutrient Solution ◽  
Water Consumption ◽  
Dry Matter ◽  
Saline Water ◽  
Dry Matter Partitioning ◽  
Use Efficiency ◽  
Supply Water

ABSTRACT Hydroponic cultivation using saline waters is an alternative for agricultural production, especially in the cultivation of vegetables. Therefore, the present work was conducted with the objective of evaluating the water consumption, water use efficiency and water content, as well as dry matter partitioning of chives (Allium schoenoprasum), cv. Todo Ano Evergreen – Nebuka exposed to six levels of nutrient solution salinity (1.5, 3.0, 4.5, 6.0, 7.5 and 9.0 dS m-1), applied at two circulation frequencies (twice a day at 8 and 16 h; and three times a day - at 8, 12 and 16 h). The level in the nutrient solution reservoir, which decreased according to the water consumption by plants, was replaced with the respective saline water (Experiment I) and supply water (Experiment II). Both experiments used a completely randomized design, in a 6 x 2 factorial scheme, with five replicates. It was observed that increased circulation frequency and the use of supply water in the replacement mitigated the effects of salinity on water consumption, water use efficiency and water content in the plant. However, with the increase in nutrient solution electrical conductivity, dry matter allocation in the roots increased, to the detriment of the shoots.

scholarly journals Evidence of Association of Salmonellae with Tomato Plants Grown Hydroponically in Inoculated Nutrient Solution

2002 ◽  
Vol 68 (7) ◽  
pp. 3639-3643 ◽  
Author(s):  
Xuan Guo ◽  
Marc W. van Iersel ◽  
Jinru Chen ◽  
Robert E. Brackett ◽  
Larry R. Beuchat
Keyword(s):  
Nutrient Solution ◽  
Root Systems ◽  
Plant Roots ◽  
Tomato Plants ◽  
Agronomic Practices ◽  
Stems And Leaves ◽  
Pathogen Populations ◽  
Hoagland Nutrient Solution ◽  
Hydroponically Grown ◽  
Intact Root

ABSTRACT The possibility of uptake of salmonellae by roots of hydroponically grown tomato plants was investigated. Within 1 day of exposure of plant roots to Hoagland nutrient solution containing 4.46 to 4.65 log10 CFU of salmonellae/ml, the sizes of the pathogen populations were 3.01 CFU/g of hypocotyls and cotyledons and 3.40 log10 CFU/g of stems for plants with intact root systems (control) and 2.55 log10 CFU/g of hypocotyls and cotyledons for plants from which portions of the roots had been removed. A population of ≥3.38 log10 CFU/g of hypocotyls-cotyledons, stems, and leaves of plants grown for 9 days was detected regardless of the root condition. Additional studies need to be done to unequivocally demonstrate that salmonellae can exist as endophytes in tomato plants grown under conditions that simulate commonly used agronomic practices.

scholarly journals Effects of Shading on Growth, Fruit Yield and Dry Matter Partitioning of Single Truss Tomato Plants.

1994 ◽  
Vol 32 (4) ◽  
pp. 231-237 ◽  
Author(s):  
Haruo SATO ◽  
Tomohiro YANAGI ◽  
Hiroaki HIRAI ◽  
Yoshinori UEDA ◽  
Yasaburo ODA
Keyword(s):  
Dry Matter ◽  
Fruit Yield ◽  
Dry Matter Partitioning ◽  
Tomato Plants

scholarly journals Growth and Yield of Iron-deficient Chile Peppers in Sand Culture

2002 ◽  
Vol 127 (2) ◽  
pp. 205-210 ◽  
Author(s):  
J.A. Anchondo ◽  
M.M. Wall ◽  
V.P. Gutschick ◽  
D.W. Smith
Keyword(s):  
Leaf Area ◽  
Nutrient Solution ◽  
Dry Matter ◽  
Dry Weight ◽  
Growth And Yield ◽  
Sand Culture ◽  
Dry Matter Partitioning ◽  
Relative Growth Rates ◽  
Iron Deficient ◽  
Chile Peppers

Growth and yield responses of `New Mexico 6-4' and `NuMex R Naky' chile pepper [Capsicum annuum L. var. annuum (Longum Group)] to four Fe levels were studied under sand culture. A balanced nutrient solution (total nutrient concentration <2 mmol·L-1) was recirculated continuously to plants potted in acid-washed sand from the seedling stage to red fruit harvest. Plants received 1, 3, 10 or 30 μm Fe as ferric ethylenediamine di-(o-hydroxyphenyl-acetate). Plant growth was determined by leaf area, specific leaf area [(SLA), leaf area per unit dry weight of leaves], instantaneous leaf photosynthetic rates, and dry matter partitioning. Low Fe (1 or 3 μm Fe) in the nutrient solution was associated with lower relative growth rates (RGR), increased SLA, and higher root to shoot ratios (3 μm Fe plants only) at final harvest. High Fe levels (10 or 30 μm Fe) in the nutrient solution were associated with an increased yield of red fruit and total plant dry matter. RGR of low-Fe young chile plants was reduced before any chlorotic symptoms appeared.

scholarly journals Growth, nutrient concentration, nutrient accumulation and visual symptoms of nutrient deficiencies in cherry tomato plants

2019 ◽  
Vol 40 (2) ◽  
pp. 585
Author(s):  
Janini Tatiane Lima Souza Maia ◽  
Hermínia Emília Prieto Martinez ◽  
Junia Maria Clemente ◽  
Marilia Contin Ventrella ◽  
Carla do Carmo Milagres
Keyword(s):  
Nutrient Solution ◽  
Dry Matter ◽  
Nutrient Concentration ◽  
Soil Conditions ◽  
Cherry Tomato ◽  
Tomato Plants ◽  
Visual Symptoms ◽  
Calcium Magnesium ◽  
Copper Zinc ◽  
Nitrogen Phosphorus

Tomato is one of the most popular vegetables, with high nutrient demand. The nutrient concentration can vary depending on the development phase, cultivation system, temperature, soil conditions, luminosity, relative humidity and management practices. The aim of this work was to characterize cherry tomato visual symptoms of deficiency, as well as the effect of nutritional restriction on the development and nutrient concentration of plants cultivated in nutrient solution. Plants of the cherry tomato, cultivar Sindy, were grown in green house. We have used eleven treatments, one control with complete nutrient solution and the other ten omitting respectively the nutrients nitrogen, phosphorus, potassium, calcium, magnesium, sulfur, boron, copper, zinc and iron. The experiment was performed in randomized design with three repetitions. After 60 days, the plants were removed from the solutions and their main symptoms were photographed and described. The traits evaluated were: total dry matter yield, dry matter of leaves, dry matter of stems and dry matter of roots; number of leaves, number of inflorescences; number of fruits and root volume. The concentration and accumulation of nutrients: nitrogen, phosphorus, potassium, calcium, magnesium, sulfur, boron, copper, zinc and iron in leaves, stems and roots were evaluated. Nutrient concentration and accumulation were influenced by the deficiencies imposed. The visual symptoms of deficiency that had appeared firstly were those of phosphorus, boron and iron, respectively. The omissions of the nutrients nitrogen, magnesium and boron were the ones that most compromised the dry matter production of the cherry tomato plants.

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