Effect of foliar application of anthracene and pyrene (PAH) on yields and chemical composition of butterhead lettuce (Lactuca sativa L.) grown under varied abundance of substrate in nutrients

2012 ◽  
Author(s):  
Sławomir Krzebietke ◽  
Stanisław Sienkiewicz
Keyword(s):  
Chemical Composition ◽  
Lactuca Sativa ◽  
Foliar Application ◽  
Lactuca Sativa L ◽  
Butterhead Lettuce

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.

scholarly journals Growth Response of Hydroponic Lactuca sativa L. to Application of Fertilizer Organic VIUSID Agro®

2020 ◽  
Vol 12 (11) ◽  
pp. 268
Author(s):  
Alexson Vieira Pordeus ◽  
Lucas de Assis Moraes ◽  
David de Oliveira Medeiros ◽  
Letícia Carvalho Benitez
Keyword(s):  
Lactuca Sativa ◽  
Root Length ◽  
New Technologies ◽  
Foliar Application ◽  
Organic Fertilizer ◽  
Morphological Characteristics ◽  
Lactuca Sativa L ◽  
Dry Biomass ◽  
The Impact ◽  
Plant Length

Lettuce (Lactuca sativa L.) production is a valuable crop for supporting family farms in the Brazilian semiarid region. The cultivation of this vegetable in a hydroponic system with foliar application of organic fertilizer can help in mitigating the challenges imposed by the region’s edaphoclimatic conditions. Therefore, it is important to increase the lettuce production using new technologies. VIUSID Agro® is an example of such technology that has the potential to increase lettuce yields. VIUSID Agro® is a natural compound that actives molecular processes without affecting the environment adversely. This product acts as a natural bioregulator and is basically composed of amino acids, vitamins, and minerals. The experiment’s objective was to analyze the impact of VIUSID Agro® organic fertilizer on the growth of hydroponic lettuce. The research was conducted on a family farm in Bom Jesus, Paraíba state, Brazil. The experimental was a completely randomized design with 5 VIUSID VIUSID Agro® concentrations (0.0; 0.2; 0.4; 0.6 and 0.8 mL L-1) and 15 replications. Among the indicators evaluated were the plant length, leaf number, stem diameter, root length, and fresh and dry biomass. The results showed that the 0.4 mL L-1 VIUSID Agro® concentration produced greater growth than the control (0.0 mL L-1) for variables analyzed plant length, fresh and dry biomass of aerial portion, root length, fresh and dry biomass of root. The foliar application of VIUSID Agro® improved the performance of the lettuce morphological characteristics in a hydroponic cultivation system. Although this is the first Brazil research evaluating VIUSID Agro® as an organic fertilizer in hydroponic lettuce, results have shown promise.

scholarly journals Preparation Protein Hydrolysates from Fish by-product and Study Effected on Lettuce (Lactuca sativa L.) Growth, Yield, Quality and Enhanced Salt Tolerance

2019 ◽  
Vol 32 ◽  
pp. 246-255
Author(s):  
Haider M.H. Al-Malieky ◽  
Awatif N. Jerry
Keyword(s):  
Lactuca Sativa ◽  
Foliar Application ◽  
Block Design ◽  
Total Yield ◽  
Winter Season ◽  
Protein Hydrolysates ◽  
Control Treatment ◽  
Fresh Weight ◽  
Shoot Fresh Weight ◽  
Lactuca Sativa L

The experiment was carried out during the winter season 2019-2018 in Al-Hartha district, Basrah Governorate to study the effects of fish by-product prepared by Alcalase and Flavourzyme enzyme as a foliar application on lettuce (Lactuca sativa L.) yield and quality grown under salinity conditions. Fish by-product protein hydrolysate was spray-applied (3 and 6ml. L-1) additional to control treatment (spraying with water) referred to (T0-T4) at four (S4), six(S6) times after 20 days transplanting at10-day intervals. Randomized Complete Block Design (R.C.B.D.) was used as factorial experiment. Treatment means were compared by using Least Significant Differences (L.S.D.) at a probability of 0.05. The results showed that spraying with protein hydrolysates had a significant effect on most studied characters compared to control treatment. Results showed that foliar application with (T2) significantly increased the total leaves number, leaves area, carbohydrate ,proline, shoot fresh weight of plant, dry matter, total soluble solids (TSS %) and total yield additional to significantly decreased in nitrate contents, while foliar application with (T4) significantly increased in the plant height and stem height. The results showed that spraying six times (S6) were significant increases in these growth characters comparing with four sprays (S4). The interaction between treatments and spraying number show significantly increased in some characters, the (T2 S6) had the highest value shoot fresh weight 762.5g and total yield 17.899 tone.donum-1.

scholarly journals Chemical Composition of Lettuce (Lactuca sativa L.) Biofortified with Iodine by KIO3, 5-Iodo-, and 3.5-Diiodosalicylic Acid in a Hydroponic Cultivation

Agronomy ◽  
2020 ◽  
Vol 10 (7) ◽  
pp. 1022 ◽  
Author(s):  
Olga Sularz ◽  
Sylwester Smoleń ◽  
Aneta Koronowicz ◽  
Iwona Kowalska ◽  
Teresa Leszczyńska
Keyword(s):  
Fatty Acid ◽  
Chemical Composition ◽  
Fatty Acid Profile ◽  
Lactuca Sativa ◽  
World Health ◽  
Food Sources ◽  
Human Diet ◽  
Positive Effects ◽  
Lactuca Sativa L ◽  
Iodine Compounds

According to the recommendations of the World Health Organization (WHO), due to the increased risk of cardiovascular disease, the daily consumption of table salt should be reduced. To avoid the health consequences of iodine deficiency, it is necessary to include alternative food sources of this trace element in the human diet. One of the most effective ways of improving nutrition is the biofortification of crops with minerals and vitamins. The purpose of this study was to determine the influence of iodine biofortification (potassium iodate/KIO3/, 5-iodosalicylic acid/5-ISA/and 3.5-diiodosalicylic acid/3.5-diISA/) on the chemical composition of lettuce (Lactuca sativa L. capitata) cv. ‘Melodion’. Plants were cultivated in a hydroponic system NFT (Nutrient Film Technique). We compared the effect of iodine fertilization on the basic chemical composition, fatty acid profile, macro- and micronutrients, content of sugars, nitrogenous compounds, chlorides, and iodine compounds. The results obtained in this research indicate that the application of iodine compounds has an influence on changes of concentration of iodine and other compounds in the treated samples. In lettuce, the main fatty acid was linolenic acid; however, fertilization with iodine did not affect the fatty acid profile in plants, except for concentrations of myristic and arachidic acids. We also found that iodine fortification has positive effects on concentrations of some micro- and micronutrients. Moreover, the application of 3.5-diISA decreased the concentration of nitrates as compared to control and other treatments. Therefore, it may be postulated that the production of lettuce fortified with iodosalicylates is worthy of consideration due to the fact that it may be a good source of iodine and other compounds in the human diet.

Foliar application of gibberellin inhibits the cadmium uptake and xylem transport in lettuce (Lactuca sativa L.)

2021 ◽  
Vol 288 ◽  
pp. 110410
Author(s):  
Hao Chen ◽  
Ruixi Yang ◽  
Xin Zhang ◽  
Yahua Chen ◽  
Yan Xia ◽  
...  
Keyword(s):  
Lactuca Sativa ◽  
Foliar Application ◽  
Cadmium Uptake ◽  
Xylem Transport ◽  
Lactuca Sativa L
Sign in / Sign up

Export Citation Format

Share Document