Article
Plant Sciences
Lichun Wang, Songrui Ning, Wengang Zheng, Jingyu Guo, Youli Li, Yinkun Li, Xiaoli Chen, Alon Ben-Gal, Xiaoming Wei
Summary: This study compared the performance of a soil-based system (SBS) and a hydroponic production system (HPS) in terms of lettuce productivity and economic benefit. The results showed that HPS was more adaptable to environmental temperature changes and had higher yield and water productivity compared to SBS. Additionally, HPS-grown lettuce exhibited increased levels of ascorbic acid and soluble sugar, but accumulation of nitrate. Consideration of agronomic, quality, and economic indicators revealed that the H2 treatment in HPS showed the optimal performance, indicating the profitability of HPS for commercial lettuce production.
FRONTIERS IN PLANT SCIENCE
(2023)
Article
Biochemistry & Molecular Biology
Muhammad Khalid Hameed, Wajid Umar, Ali Razzaq, Tariq Aziz, Muhammad Aamer Maqsood, Shiwei Wei, Qingliang Niu, Danfeng Huang, Liying Chang
Summary: Nitrogen is an essential element for plant growth, and different nitrogen sources and forms have significant effects on the biomass, quality, and metabolite composition of lettuce. The NH4+/NO3- ratio plays a crucial role in determining the chlorophyll content and biomass of lettuce. The 25% NH4+/75% NO3- ratio is the most suitable for increasing lettuce biomass in hydroponic cultivation systems. Different concentrations of nitrogen sources also affect the taste and quality-related compounds in lettuce.
Article
Agronomy
Laura Carotti, Alessandro Pistillo, Ilaria Zauli, Davide Meneghello, Michael Martin, Giuseppina Pennisi, Giorgio Gianquinto, Francesco Orsini
Summary: Vertical farms are indoor facilities that use artificial lighting to control all environmental conditions independently from the external climate. This study compared two different growing systems, ebb-and-flow and high pressure aeroponics, and found that the aeroponic system had a higher water use efficiency than the ebb-and-flow system.
AGRICULTURAL WATER MANAGEMENT
(2023)
Article
Multidisciplinary Sciences
Ferdinando Fragala, Ivana Puglisi, Elio Padoan, Enzo Montoneri, Piergiorgio Stevanato, Jose Maria Gomez, Natalia Herrero, Emanuele La Bella, Erika Salvagno, Andrea Baglieri
Summary: The aim of this study was to evaluate the potential use of biopolymers in agriculture to improve plant nutrient efficiency and decrease environmental impact. The results show that applying 150 kg/ha of biopolymers to the soil increases lettuce growth and nitrogen use efficiency, reducing the use of mineral fertilizers by 40% and decreasing nitrate leaching. These findings suggest that using biopolymers as biostimulants greatly contributes to sustainable and eco-friendly agriculture.
SCIENTIFIC REPORTS
(2023)
Article
Agronomy
Maliqa Majid, Junaid N. Khan, Qazi Muneeb Ahmad Shah, Khalid Z. Masoodi, Baseerat Afroza, Saqib Parvaze
Summary: The increase in the world's population has caused an overuse of land and water resources, resulting in scarcity. Utilization of modern technologies and advanced crop production methods will help increase our ability to address these modern challenges.
AGRICULTURAL WATER MANAGEMENT
(2021)
Article
Multidisciplinary Sciences
Xiao-li Chen, You-li Li, Li-chun Wang, Qi-chang Yang, Wen-zhong Guo
Summary: This study investigated the effects of extended light/dark cycle period on lettuce and found that it increased shoot dry weight, soluble sugar and crude fiber content in lettuce. The longer the cycle period, the higher the vitamin C content and lower the nitrate content. Longer light/dark cycle period improved assimilation efficiency and dry matter accumulation in lettuce leaves. Specific light/dark cycle periods enhanced root growth and water absorption capacity of lettuce. Extending the light/dark cycle period improved energy use efficiency and biomass of lettuce. The recommended treatment for optimal energy use efficiency and nutritional quality was a light/dark cycle of 24/12 hours.
SCIENTIFIC REPORTS
(2022)
Article
Agronomy
Jie Zou, Dimitrios Fanourakis, Georgios Tsaniklidis, Ernst J. Woltering, Ruifeng Cheng, Tao Li
Summary: To improve yield in indoor lettuce cultivation, adding far-red radiation (FR, 700-800 nm) to the photosynthetic active radiation (PAR, 400-700 nm) is effective. Two scenarios were investigated: FR applied throughout the photoperiod (FR-Day) and FR applied for a short duration at the end of the day (FR-EOD). FR-Day was found to optimize yield, while FR-EOD was found to optimize production efficiency.
POSTHARVEST BIOLOGY AND TECHNOLOGY
(2023)
Article
Horticulture
Jie Zou, Dimitrios Fanourakis, Georgios Tsaniklidis, Ruifeng Cheng, Qichang Yang, Tao Li
Summary: Far-red light at the end of day better stimulates plant growth when applied alone, through improved light interception and increased soluble sugar content. While the effect of far-red light on leaf light absorption and photosynthetic pigment content decreased, its impact on net photosynthesis rate was not significant. In general, the far-red light response is intensity-dependent, and both qualitative and quantitative threshold responses vary depending on the trait.
SCIENTIA HORTICULTURAE
(2021)
Article
Biology
Lyubov Yudina, Ekaterina Sukhova, Maxim Mudrilov, Vladimir Nerush, Anna Pecherina, Alexandr A. Smirnov, Alexey S. Dorokhov, Narek O. Chilingaryan, Vladimir Vodeneev, Vladimir Sukhov
Summary: This study analyzed the influence of two variants of LED illumination on physiological processes and growth characteristics in lettuce. The results showed that red light illumination contributed to lettuce growth, while blue light illumination led to stress changes. These findings are important for improving lettuce cultivation efficiency.
Article
Agronomy
Fatemeh Nayebloie, Mahdi Kouchakzadeh, Kumars Ebrahimi, Mahdi Homaee, Fariborz Abbasi
Summary: This study evaluates different nitrate fertigation strategies using the Hydrus-2D model and finds that reducing fertigation time and intervals, replacing drip lines, and increasing nitrate concentration of wastewater can improve fertigation management efficiency and minimize nitrate leaching.
AGRICULTURAL WATER MANAGEMENT
(2022)
Article
Plant Sciences
Esio de Castro Paes, Bismark Lopes Bahia, Fabiane Pereira Machado Dias, Aniele Neres Bispo, Juan Manuel Anda Rocabado, Rafaela Simao Abrahao Nobrega, Julio Cesar Azevedo Nobrega
Summary: This study evaluated the influence of organic compost and soil proportions on lettuce growth in a greenhouse and the residual effect of organic fertilization in successive lettuce crops. The results showed that the proportion of 60:40 of organic compost to soil performed the best in the first crop, but supplementary fertilization was still required in successive crops.
JOURNAL OF PLANT NUTRITION
(2022)
Article
Agronomy
Wlodzimierz Bres, Tomasz Kleiber, Bartosz Markiewicz, Elzbieta Mieloszyk, Monika Mieloch
Summary: In recent decades, the deterioration of water and soil quality due to increasing human pressure has become a concern. This comprehensive study investigated the effect of sodium chloride, a salinity inducer, on the yield, photosynthesis efficiency, and nutrient content of hydroponically grown lettuce. The results showed that high concentrations of sodium chloride significantly altered the chemical composition of the lettuce leaves, leading to reduced yield and increased dry matter content.
Article
Agronomy
Maha Ezziddine, Helge Liltved, Randi Seljasen
Summary: This study demonstrates that nutrients recovered from aquacultural sludge can be effectively utilized as fertilizer for hydroponic lettuce production, showing promising results in lettuce growth and reducing the dependency on mineral fertilizers.
Article
Horticulture
Tomohiro Jishi, Takashi Ishii, Kazuhiro Shoji
Summary: The use of quantum dot sheets for light conversion showed promising results in promoting plant growth, with improved growth of lettuce under green light converted from blue light.
SCIENTIA HORTICULTURAE
(2022)
Article
Plant Sciences
Shinya Takahashi, Yui Namioka, Haidar Azis, Tomoharu Sano, Mitsuko Aono, Masami Koshiyama, Hiroshi Fujisawa, Hiroko Isoda
Summary: PDJ treatment promotes the accumulation of phenolic compounds in red leaf lettuce and upregulates the expression of genes involved in their synthesis, resulting in an increased quantity of these compounds which reportedly have various functions affecting human physiology.