scholarly journals Effects of Nutrient Solution Levels on the Growth, Yield and Mineral Contents in Hydroponically-Grown Bush Snap Bean.

2002 ◽  
Vol 40 (2) ◽  
pp. 167-175 ◽  
Author(s):  
Manolo Toledo VALDEZ ◽  
Tadashi ITO ◽  
Yutaka SHINOHARA ◽  
Toru MARUO
Keyword(s):  
Nutrient Solution ◽  
Growth Yield ◽  
Mineral Contents ◽  
Snap Bean ◽  
Hydroponically Grown

scholarly journals Growth, Yield, Nutrient Content and Fruit Quality of Carica papaya L. Under Controlled Conditions. II. Boron Effects

1969 ◽  
Vol 66 (2) ◽  
pp. 80-88
Author(s):  
Agripino Pérez ◽  
Norman F. Childers
Keyword(s):  
Nutrient Solution ◽  
Mineral Content ◽  
Carica Papaya ◽  
Growth Yield ◽  
Nutrient Content ◽  
Sand Culture ◽  
Mineral Contents ◽  
Four Levels ◽  
Panel Evaluation

A sand culture greenhouse experiment was conducted with papaya, Carica papaya L., variety Blue Solo, to determine the effects of four levels of Bin the nutrient solution (0.01, 0.05, 0.1 (control), and 1.5 p/m) on growth, fruiting and mineral content. B deficiency and B excess symptoms are described for leaves, petioles, central stems, and fruit. Mineral contents of leaves, petioles, and fruits are presented and discussed. Fruits receiving 0.05 p/m B in the nutrient solution were preferred. The critical level of B appears to be about 20 p/m in the petioles and leaves, whereas excess B occurred at about 70 and 300 p/m, respectively, for petioles and leaves. Quality components of the fruits are based on taste panel evaluation.

Salinity and nitrogen fertilization and nitrogen metabolism in rose plants

2001 ◽  
Vol 137 (1) ◽  
pp. 77-84 ◽  
Author(s):  
H. LORENZO ◽  
J. M. SIVERIO ◽  
M. CABALLERO
Keyword(s):  
Nitrate Reductase ◽  
Glutamine Synthetase ◽  
Nitrogen Source ◽  
Nutrient Solution ◽  
Reductase Activity ◽  
Ammonium Uptake ◽  
Mineral Contents ◽  
Sodium Accumulation ◽  
Npk Uptake ◽  
Mineral Concentrations

Rose production is limited by salinity and highly affected by the nitrogen source present in the nutrient solution. The influence of sodium on several aspects of nutrition has been investigated in ‘Lambada' rose plants using different sources of nitrogen in the fertilization treatment. Experiments using a previously defined mono-shoot model plant and a simplified hydroponic culture allowed us to study the effects of salinity v. nitrogen on NPK uptake during the culture period. Mineral concentrations, nitrate reductase (NR) and glutamine synthetase (GS) activities were also analysed. This study showed that rose plants were more sensitive to saline conditions under NH4+ fertilization without detectable effects on growth or in NPK mineral contents in shoots. Parameters affected most were enzymatic activities analysed such as leaf nitrate reductase activity which was reduced under NH4+ nutrition. Leaf glutamine synthetase was also enhanced by saline conditions. The Na/K ratio showed that under NH4+ nutrition, the highest sodium accumulation occurred in roots. Nitrate uptake did not show a clear pattern related to nitrogen source, however, ammonium uptake was affected by salinity when NH4+ was the sole nitrogen source in the nutrient solution. Potassium and phosphate uptake were always lower when NH4+ was present in the nutrient solution.

Salmonella Enteritidis survival in different temperatures and nutrient solution pH levels in hydroponically grown lettuce

2021 ◽  
pp. 103898
Author(s):  
Panayiota Xylia ◽  
Antonios Chrysargyris ◽  
George Botsaris ◽  
Panagiotis Skandamis ◽  
Nikolaos Tzortzakis
Keyword(s):  
Nutrient Solution ◽  
Salmonella Enteritidis ◽  
Solution Ph ◽  
Different Temperatures ◽  
Hydroponically Grown

Impact of reduced potassium nitrate concentrations in nutrient solution on the growth, yield and fruit quality of melon in hydroponics

2013 ◽  
Vol 164 ◽  
pp. 221-231 ◽  
Author(s):  
Toshiki Asao ◽  
Md. Asaduzzaman ◽  
Md. Fuad Mondal ◽  
Mayumi Tokura ◽  
Fumihiko Adachi ◽  
...  
Keyword(s):  
Nutrient Solution ◽  
Fruit Quality ◽  
Growth Yield ◽  
Potassium Nitrate ◽  
Nitrate Concentrations
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