The distinct impact of multi-color LED light on nitrate, amino acid, soluble sugar and organic acid contents in red and green leaf lettuce cultivated in controlled environment

2020 ◽  
Vol 310 ◽  
pp. 125799 ◽  
Author(s):  
Akvilė Viršilė ◽  
Aušra Brazaitytė ◽  
Viktorija Vaštakaitė-Kairienė ◽  
Jurga Miliauskienė ◽  
Julė Jankauskienė ◽  
...  
Keyword(s):  
Amino Acid ◽  
Organic Acid ◽  
Soluble Sugar ◽  
Green Leaf ◽  
Controlled Environment ◽  
Led Light ◽  
Leaf Lettuce

Urine organic acid as the first clue towards aromatic L-amino acid decarboxylase (AADC) deficiency in a high prevalence area

2021 ◽  
Author(s):  
Tsz-Ki Ling ◽  
Ka-Chung Wong ◽  
Candace Yim Chan ◽  
Nike Kwai-Cheung Lau ◽  
Chun-yiu Law ◽  
...  
Keyword(s):  
Amino Acid ◽  
Organic Acid ◽  
Acid Decarboxylase ◽  
Amino Acid Decarboxylase ◽  
High Prevalence ◽  
Urine Organic Acid

Bio-Boron Fertilizer Applications Affect Amino Acid and Organic Acid Content and Physiological Properties of Strawberry Plant

2018 ◽  
Vol 61 (2) ◽  
pp. 129-137 ◽  
Author(s):  
N. Kitir ◽  
A. Gunes ◽  
M. Turan ◽  
E. Yildirim ◽  
B. Topcuoglu ◽  
...  
Keyword(s):  
Amino Acid ◽  
Organic Acid ◽  
Acid Content ◽  
Strawberry Plant ◽  
Physiological Properties ◽  
Organic Acid Content

scholarly journals Growth analysis of green-leaf lettuce under different sources and doses of organic and mineral fertilization

2019 ◽  
Vol 13 (2) ◽  
pp. 237-247
Author(s):  
Rúbia Rejane Ribeiro ◽  
Jose Luiz Rodrigues Torres ◽  
Valdeci Orioli-Junior ◽  
Hamilton Cesar De Oliveira Charlo ◽  
Dinamar Márcia Da Silva Vieira
Keyword(s):  
Organic Matter ◽  
Growth Analysis ◽  
Chicken Manure ◽  
Residual Effects ◽  
Green Leaf ◽  
Organic Fertilization ◽  
Mineral Fertilization ◽  
Lettuce Yield ◽  
Leaf Lettuce ◽  
Different Sources

The objective of this study was to evaluate the influence of different sources and doses of organic and mineral fertilization on the production of green-leaf lettuce. The experiment design used randomized blocks in a factorial scheme (6×3), with six doses of fertilizers (1 = 0; 2 = 25; 3 = 50; 4 = 100; 5 = 150, and 6 = 200% of the recommended fertilization for green-leaf lettuce crop) and three sources of fertilizers [cattle manure (CaM) and chicken manure (ChM), decomposed, on a wet basis and applied 100% at planting at the doses: CaM – 0, 12.5, 25, 50, 75, 100 Mg ha-1; ChM – 0, 5, 10, 20, 30, 40 Mg ha-1; mineral fertilization (MF) varying the N levels: 0, 37.5, 75, 150, 225, 300 kg ha-1 plus 400 kg ha-1 of P2O5 and 60 kg ha-1 of K2O]. The fertilization with CaM and ChM was more efficient than the MF at increasing the production of green-leaf lettuce, mainly because of  the higher residual effects of P in the Oxisol. The ChM provided a higher soil pH, P and K, while the CaM provided a higher soil Mg, organic carbon and organic matter. The dose with 144% of organic fertilization exclusively on a wet basis corresponding to 72 Mg ha-1 of CaM and 29 Mg ha-1 of ChM resulted in the highest green-leaf lettuce yield.

scholarly journals A System and Methodology for Measuring Volatile Organic Compounds Produced by Hydroponic Lettuce in a Controlled Environment

1996 ◽  
Vol 121 (3) ◽  
pp. 483-487 ◽  
Author(s):  
Craig S. Charron ◽  
Daniel J. Cantliffe ◽  
Raymond M. Wheeler ◽  
Ara Manukian ◽  
Robert R. Heath
Keyword(s):  
Dark Period ◽  
Photon Flux ◽  
Controlled Environment ◽  
Qualitative And Quantitative Analysis ◽  
Lipoxygenase Pathway ◽  
Qualitative And Quantitative ◽  
Volatile Collection ◽  
Volatile Organic ◽  
Hydroponically Grown ◽  
Leaf Lettuce

A system and methodology were developed for the nondestructive qualitative and quantitative analysis of volatile emissions from hydroponically grown `Waldmann's Green' leaf lettuce (Lactuca sativa L.). Photosynthetic photon flux (PPF), photoperiod, and temperature were automatically controlled and monitored in a growth chamber modified for the collection of plant volatiles. The lipoxygenase pathway products (Z)-3-hexenal, (Z)-3-hexenol, and (Z)-3-hexenyl acetate were emitted by lettuce plants after the transition from the light period to the dark period. The volatile collection system developed in this study enabled measurements of volatiles emitted by intact plants, from planting to harvest, under controlled environmental conditions.

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