Influence of nutrient solutions in an open-field soilless system on the quality characteristics and shelf life of fresh-cut red and green lettuces (Lactuca sativa L.) in different seasons

2012 ◽  
Vol 93 (2) ◽  
pp. 415-421 ◽  
Author(s):  
María C Luna ◽  
Ascensión Martínez-Sánchez ◽  
María V Selma ◽  
Juan A Tudela ◽  
Carlos Baixauli ◽  
...  
Keyword(s):  
Shelf Life ◽  
Open Field ◽  
Lactuca Sativa ◽  
Quality Characteristics ◽  
Lactuca Sativa L ◽  
Different Seasons ◽  
Fresh Cut ◽  
Nutrient Solutions

scholarly journals Changes in the Chemical Composition of Six Lettuce Cultivars (Lactuca sativa L.) in Response to Biofortification with Iodine and Selenium Combined with Salicylic Acid Application

Agronomy ◽  
2019 ◽  
Vol 9 (10) ◽  
pp. 660 ◽  
Author(s):  
Sylwester Smoleń ◽  
Iwona Kowalska ◽  
Peter Kováčik ◽  
Włodzimierz Sady ◽  
Marlena Grzanka ◽  
...  
Keyword(s):  
Salicylic Acid ◽  
Chemical Composition ◽  
Lactuca Sativa ◽  
Negative Impact ◽  
Biomass Productivity ◽  
Ascorbic Acid Content ◽  
Greenhouse Study ◽  
Lactuca Sativa L ◽  
Nutrient Film Technique ◽  
Nutrient Solutions

A two-year greenhouse study was conducted to assess the effects of the application of I (as KIO3), Se (as Na2SeO3), and salicylic acid (SA) in nutrient solutions on the chemical composition of six lettuce cultivars, i.e., two butterhead lettuces (BUTL), “Cud Voorburgu” and “Zimująca”; two iceberg lettuces (ICEL), “Maugli” and “Królowa lata”; and two Lactuca sativa L. var. crispa L. (REDL) cultivars, “Lollorossa” and “Redin”, grown in the NFT (nutrient film technique) system. The treatments were as follows: control, I+Se, I+Se+0.1 mg SA dm−3, I+Se+1.0 mg SA dm−3, and I+Se+10.0 mg SA dm−3. KIO3 was used at a dose of 5 mg I dm−3, while Na2SeO3 was used at 0.5 mg Se dm−3. The application of I+Se was a mild abiotic stress factor for the plants of the ICEL and REDL cultivars. In contrast, I+Se did not have a negative impact on the BUTLcultivars. The application of 1.0 mg SA dm−3 improved the biomass productivity in all cultivars compared with I+Se. In the majority of the cultivars, the applied combinations of I+Se and I+Se+SA resulted in a reduction in the nitrate(V) content that was beneficial to the consumer and increased levels of sugars, phenols, phenylpropanoids, flavonols, and anthocyanins. In addition, an increase in ascorbic acid content was observed, but only in the BUTL cultivars and REDL “Redin”. The application of I, Se, and SA had upward or downward effects on the concentrations of N, K, P, Ca, Mg, S, Na, B, Cu, Fe, Mn, Mo, and Zn in the leaves.

Effect of Water Jet Cutting and Moderate Heat Treatment on Quality of Fresh-Cut Red Oak Leaf Lettuce (Lactuca sativa L. var. crispa)

2014 ◽  
Vol 7 (12) ◽  
pp. 3478-3492 ◽  
Author(s):  
Sabine Wulfkuehler ◽  
Sabrina Stark ◽  
Johann Dietz ◽  
Herbert Schmidt ◽  
Agnes Weiss ◽  
...  
Keyword(s):  
Heat Treatment ◽  
Lactuca Sativa ◽  
Red Oak ◽  
Effect Of Water ◽  
Lactuca Sativa L ◽  
Water Jet Cutting ◽  
Fresh Cut ◽  
Leaf Lettuce ◽  
Oak Leaf Lettuce

scholarly journals Monitoring, calibration and maintenance of optimized nutrient solutions in curly lettuce (Lactuca sativa, L.) hydroponic cultivation

2018 ◽  
Vol 12 (04) ◽  
pp. 572-582 ◽  
Author(s):  
Antonio Fernandes Monteiro Filho ◽  
◽  
Carlos Alberto Vieira de Azevedo ◽  
Márcia Rejane de Queiroz Almeida Azevedo ◽  
Josely Dantas Fernandes ◽  
...  
Keyword(s):  
Lactuca Sativa ◽  
Lactuca Sativa L ◽  
Hydroponic Cultivation ◽  
Nutrient Solutions

scholarly journals Wpływ szczepów bakterii wyizolowanych z hydroponicznej uprawy sałaty (Lactuca sativa L.) na wzrost siewek sałaty, rosnących w obecnosci rożnych form pożywienia azotowego [Influence of bacterial strains isolated from hydroponic cultures of lettuce (Lactuca sativa L.) on the growth of lettuce seedlings growing in the presence of various forms of nitrogen nutrition]

2015 ◽  
Vol 32 (2) ◽  
pp. 195-206
Author(s):  
Z. Kobierzyńska-Gołąb
Keyword(s):  
Ammonium Nitrate ◽  
Nutrient Solution ◽  
Lactuca Sativa ◽  
Nitrogen Nutrition ◽  
Cultivated Plants ◽  
Bacterial Strains ◽  
Lactuca Sativa L ◽  
Hydroponic Cultures ◽  
Nutrient Solutions ◽  
Growth Of Seedlings

320 bacterial strains isolated from the surface of cultivated plants, as well as from other parts of hydroponic cultures showed stimulating (49 bacterial strains) or inhibitory (9 bacterial strains) properties in respect to the investigated plant. The following bacteria were isolated: <i>Pseudomonas, Flavobacterium, Agrobacterium, Achromobacter</i> and <i>Chromobacterium</i>. The effects of active bacterial strains on the growth of seedlings were investigated in dependence on the kind of inorganic form of nitrogen present in the nutrient solutions. The same bacterial strains exerted a stimulating effect on seedlings growing on nitrates, weaker stimulation was observed in cultures with ammonium nitrate; the growth of lettuce seedlings on nutrient solution with ammonium only, was, as a rule, inhibited by the bacteria.

scholarly journals Pengaruh Penambahan Ca(NO3)2 Terhadap Hasil Tanaman Selada Kriting (Lactuca Sativa L.) pada Sistem Hidroponik Deep Flow Technique (DFT)

2020 ◽  
Vol 10 (2) ◽  
pp. 190
Author(s):  
NI NYOMAN SURYANTINI ◽  
GEDE WIJANA ◽  
RINDANG DWIYANI
Keyword(s):  
Lactuca Sativa ◽  
Maximum Yield ◽  
Calcium Nitrate ◽  
Vegetable Crops ◽  
Hydroponic System ◽  
Lactuca Sativa L ◽  
Deep Flow Technique ◽  
The Moment ◽  
Require Composition ◽  
Nutrient Solutions

The Effect of Addition of Ca(NO3)2 to the Results of Lettuce (Lactuca sativa L.) in the Hydroponic System of Deep Flow Technique (DFT). Plants, in general, require composition, concentration, and volume of nutrient solutions which different depends on the type and phase of plant growth. Leaf vegetable crops such as lettuce (Lactuca sativa L.) require higher Nitrogen (N) nutrients than other vegetable crops, but the problem we faced at the moment is the hydroponic nutrients that are traded only in the general form of nutrient, therefore the addition of N nutrients in the form of calcium nitrate (Ca(NO3)2) needs to be done to meet the needs of lettuce plants. This study was aimed to determine the effect of the addition of Ca(NO3)2 and to find the optimum dosage of the addition of Ca(NO3)2 to the general hydroponic nutrition of vegetables on lettuce use DFT hydroponic system. The treatments consisted of five levels which are nutrition AB Mix general vegetable as a control, and nutrition AB Mix with the addition of 30 g, 60 g, 90 g, and 120 g Ca(NO3)2.  The results of the observation showed that the treatment of the addition of Ca(NO3)2 fertilizer had a very significant effect on all observed variables, except for the diameter of the lettuce plant. The optimum addition of Ca(NO3)2 for lettuce was found at 90.04 g with a maximum yield of 207.92 g.

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