Lettuce Biomass Accumulation and Phytonutrient Concentrations Are Influenced by Genotype, N Application Rate and Location

Barickman, T. Casey; Sublett, William L.; Miles, Carol A.; Crow, Danielle; Scheenstra, Ed

doi:10.3390/horticulturae4030012

Cited by 8 publications

(8 citation statements)

References 25 publications

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“…Present study indicated that mostly green cultivars showed higher rosette (head) fresh weight, compared to red within same type. Similar results were observed in green and red oak, and romaine lettuce, respectively (Koudela and Petrikova, 2008;Barickman et al, 2018). The highest rosette fresh weight, irrespective to treatment, was obtained with cultivar 'Aleppo', usually followed by cultivar 'Kiribati', and the lowest fresh weight was observed in 'Carmesi' both in control and with application of fertilisers.…”

Section: Discussionsupporting

confidence: 75%

“…The same authors suggested that the response was not strict for the apparent cultivar; nevertheless, the anthocyanin and polyphenol content were mostly stimulated by low ambient temperatures, while POD was affected with high day/night temperatures. According to different literature data, green cultivars are supposed to have higher rosette fresh weight compared to red, while higher phytochemical parameters (total antioxidant capacity, total phenolic content, total carotenoids and specific POD activity) are expected in red cultivars (Liu et al, 2007;Llorach et al, 2008;Barickman et al, 2018).…”

Section: Introductionmentioning

confidence: 99%

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Determination of antioxidative and enzymatic activity in green and red lettuce cultivars affected by microbiological fertilisers and seasons

et al. 2021

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Lettuce is a worldwide grown leafy vegetable rich in phytochemicals which are essential in human diet. The aim of this study was to examine the effect of genotype, microbiological fertilisers and season on the rosette fresh weight and components of antioxidant activity. Six cultivars (green ‘Kiribati’, ‘Aleppo’, ‘Aquino’ and red ‘Murai’, ‘Carmesi’, ‘Gaugin’) were grown in a greenhouse experiment during three consecutive seasons (autumn, winter and spring) with application of microbiological fertilisers (EM Aktiv, Vital Tricho and their combination). Green cultivars showed higher fresh weight than red in spring and winter. Green cultivar ‘Aleppo’ showed the highest fresh weight in control during spring. Microbiological fertilisers led to increased fresh weight in autumn. Mainly, red cultivars showed higher quality parameters compared to green (total antioxidant capacity, total phenolic content, total carotenoids and POD activity). Red cultivar ‘Carmesi’ showed the highest total antioxidant capacity, total carotenoids, and total phenolic content in winter with combination of fertilisers, Vital Tricho, and in control. In spring, ‘Carmesi’ and ‘Gaugin’ showed the highest POD activity with Vital Tricho, and combination of fertilisers. The present study suggested that genotype, fertilisers and season jointly influenced quantity and quality parameters with emphasis on Vital Tricho, and/or combination of fertilisers.

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Section: Discussionsupporting

confidence: 75%

Section: Introductionmentioning

confidence: 99%

Determination of antioxidative and enzymatic activity in green and red lettuce cultivars affected by microbiological fertilisers and seasons

et al. 2021

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“…The 'Romaine lettuce' (cos lettuce) showed the highest (9.52 ± 0.12%) and the leaf lettuce 'Lollo Bionda' showed the lowest total dry matter content (6.02 ± 0.30%) on the chernozem soil. In their experiment, Barickman et al (2018) evaluated two types of Roman lettuce ('Salvius' and 'Thurinus'). For the dry mass content (DM) they measured lower value for these varieties -'Salvius' (5.26 %) and 'Thurinus' (6.21 %).…”

Section: Dry Matter Content (%)mentioning

confidence: 99%

Agronomic evaluation of different lettuce (Lactuca sativa L.) varieties under unheated plastic tunnel

Madar

Hájos²

2022

Int. j. hortic. sci.

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Among the leafy vegetables, lettuce (Lactuca sativa L.) is the most widely grown species in the world. Wide ranges of physical properties of the products are used to assess the degree of maturity. In this study, different lettuce varieties were grown under an unheated plastic tunnel in springtime. We evaluated the agronomic properties of different lettuce varieties, evaluated the condition of the plants, and determined the bioactive substances. Larger head weight can be achieved by the ‘King of May’ butterhead (259.31 g) and ‘Great Lakes 659’crisphead (220.40 g) genotypes. A very strong correlation (r = 0.995) was observed between the lettuce head index, and leaf index and both had a strong positive correlation (r = 0.828 and 0.760) with NDVI. The highest SPAD values were measured for cos lettuce ‘Romaine lettuce’ (44.01) and iceberg lettuce ‘Great Lakes 659’ (42.71). However, these genotypes showed the highest (9.52%; 8.74%) dry matter content, too. The red leaf variety 'Lollo Rosso' had the highest total polyphenol content (181.53 GAE/100 g FW). Among the evaluated properties, iceberg lettuce showed favorable morphology, plant condition, and good dry matter content. In addition, between the loose-leaf lettuces, the red leaf lollo type was outstanding with bioactive content.

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“…Differing responses actuated by distinct lettuce cultivars may originate from variety-specific characteristics, including morphological and physiological features, such as plant architecture, leaf pigment pool, and stomata traits. These characteristics can account for peculiar light absorption, light use, photosynthetic rate, biomass accumulation, and secondary metabolite content, which can make some cultivars more or less suitable for a certain environment [ 14 , 15 ]. For instance, some cultivars may be more sensitive, or less tolerant, to temperature stress.…”

Section: Introductionmentioning

confidence: 99%

Response of Cyanic and Acyanic Lettuce Cultivars to an Increased Proportion of Blue Light

Cammarisano

Körner

2022

Biology

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Indoor crop cultivation systems such as vertical farms or plant factories necessitate artificial lighting. Light spectral quality can affect plant growth and metabolism and, consequently, the amount of biomass produced and the value of the produce. Conflicting results on the effects of the light spectrum in different plant species and cultivars make it critical to implement a singular lighting solution. In this study we investigated the response of cyanic and acyanic lettuce cultivars to an increased proportion of blue light. For that, we selected a green and a red leaf lettuce cultivar (i.e., ‘Aquino’, CVg, and ‘Barlach’, CVr, respectively). The response of both cultivars to long-term blue-enriched light application compared to a white spectrum was analyzed. Plants were grown for 30 days in a growth chamber with optimal environmental conditions (temperature: 20 °C, relative humidity: 60%, ambient CO2, photon flux density (PFD) of 260 µmol m−2 s−1 over an 18 h photoperiod). At 15 days after sowing (DAS), white spectrum LEDs (WW) were compared to blue-enriched light (WB; λPeak = 423 nm) maintaining the same PFD of 260 µmol m−2 s−1. At 30 DAS, both lettuce cultivars adapted to the blue light variant, though the adaptive response was specific to the variety. The rosette weight, light use efficiency, and maximum operating efficiency of PSII photochemistry in the light, Fv/Fm’, were comparable between the two light treatments. A significant light quality effect was detected on stomatal density and conductance (20% and 17% increase under WB, respectively, in CVg) and on the modified anthocyanin reflectance index (mARI) (40% increase under WB, in CVr). Net photosynthesis response was generally stronger in CVg compared to CVr; e.g., net photosynthetic rate, Pn, at 1000 µmol m−2 s−1 PPFD increased from WW to WB by 23% in CVg, compared to 18% in CVr. The results obtained suggest the occurrence of distinct physiological adaptive strategies in green and red pigmented lettuce cultivars to adapt to the higher proportion of blue light environment.

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Lettuce Biomass Accumulation and Phytonutrient Concentrations Are Influenced by Genotype, N Application Rate and Location

Cited by 8 publications

References 25 publications

Determination of antioxidative and enzymatic activity in green and red lettuce cultivars affected by microbiological fertilisers and seasons

Determination of antioxidative and enzymatic activity in green and red lettuce cultivars affected by microbiological fertilisers and seasons

Agronomic evaluation of different lettuce (Lactuca sativa L.) varieties under unheated plastic tunnel

Response of Cyanic and Acyanic Lettuce Cultivars to an Increased Proportion of Blue Light

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