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Evers, Aino-Maija; Ketoja, Elise; Hägg, Margareta; Plaami, Sirkka; Häkkinen, Ulla; Pessala, Raili

doi:10.1023/a:1007916031818

Cited by 11 publications

(2 citation statements)

References 2 publications

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“…Irrigation is crucial for high yields and marketability of vegetable products, especially in leafy vegetables such as stalk celery and smallage [59]. Unless precipitation covers crop needs in irrigation water, lack of water has a severe effect on the total yield and quality of celery, especially under low nitrogen rate regimes [60], while water stress conditions may increase furocumarins content in celery juices [61] and alter essential oil composition in terms of volatile compound content such as limonene and myrcene [62]. The quality of water is also essential and saline water (up to 5.83 dS/m) resulted in a yield reduction of 74% as compared with irrigation using tap water (0.25 dS/m) [63].…”

Section: Irrigationmentioning

confidence: 99%

Apium Plants: Beyond Simple Food and Phytopharmacological Applications

et al. 2019

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Apium plants belong to the Apiaceae family and are included among plants that have been in use in traditional medicine for thousands of years worldwide, including in the Mediterranean, as well as the tropical and subtropical regions of Asia and Africa. Some highlighted medical benefits include prevention of coronary and vascular diseases. Their phytochemical constituents consist of bergapten, flavonoids, glycosides, furanocoumarins, furocoumarin, limonene, psoralen, xanthotoxin, and selinene. Some of their pharmacological properties include anticancer, antioxidant, antimicrobial, antifungal, nematocidal, anti-rheumatism, antiasthma, anti-bronchitis, hepatoprotective, appetizer, anticonvulsant, antispasmodic, breast milk inducer, anti-jaundice, antihypertensive, anti-dysmenorrhea, prevention of cardiovascular diseases, and spermatogenesis induction. The present review summarizes data on ecology, botany, cultivation, habitat, medicinal use, phytochemical composition, preclinical and clinical pharmacological efficacy of Apium plants and provides future direction on how to take full advantage of Apium plants for the optimal benefit to mankind.

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Section: Irrigationmentioning

confidence: 99%

Apium Plants: Beyond Simple Food and Phytopharmacological Applications

et al. 2019

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“…Similar results were observed by other experimental studies [ 33 , 34 ]. However, other studies reported no significant effects of different nitrogen doses on the carotenoid content of fruits and vegetables [ 22 , 35 , 36 , 37 , 38 ]. Furthermore, excessive nitrogen supply had a negative impact on tomato attributes [ 39 ].…”

Section: Introductionmentioning

confidence: 97%

Nitrogen Application Can Be Reduced without Affecting Carotenoid Content, Maturation, Shelf Life and Yield of Greenhouse Tomatoes

Chormova

Kavvadias

Okello

et al. 2023

Plants

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Tomatoes (Solanum lycopersicum L.) of the variety Elpida were grown under standard Mediterranean greenhouse conditions during the spring season at three different nitrogen levels (low 6.4, standard 12.8, high 25.9 mM/plant), which were replicated during two consecutive years. Application of high nitrogen significantly increased the colour index a* (p < 0.001) but did not significantly affect yield or quality. The variety exhibited prolonged postharvest storage at room temperature (median survival time of 93 days). The maturation process was delayed by harvest at the breaker stage (2.5 days, p ≤ 0.001) or by super-optimal temperatures in the second year of experimentation (10 days, p ≤ 0.001). The colour indices L* and a* and the hue angle (a/b*) were positively correlated with the sum of total carotenoids, while differences in b* depended on the year of cultivation. The sustainability of this type of tomato production can be improved by reducing the nitrogen supply to less than the current standard practice, with minimal risk or negative effects on yield and quality of tomatoes.

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Carotenoid pigments in kale are influenced by nitrogen concentration and form

2007

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The objective of these experiments was to investigate the effects of N rate and form on the accumulation of lutein, β-carotene and chlorophyll pigments in the leaf tissues of kale. Winterbor, Toscano and Redbor kale cultivars were greenhouse grown using nutrient solution culture. In the first study, N treatments were 6, 13, 26, 52 and 105 mg L −1 at a constant 1 NH 4 -N:3 NO 3 -N ratio. On a fresh weight basis, plant pigment concentrations (lutein, β-carotene and chlorophylls) were not affected by N rate. When calculated on a dry weight basis, however, carotenoid pigments increased linearly in response to increasing N rate. In a second study, N rate was held constant at 105 mg L −1 and N form was changed as follows: 100% NH 4 -N:0% NO 3 -N, 75% NH 4 -N:25% NO 3 -N, 50% NH 4 -N:50% NO 3 -N, 25% NH 4 -N:75% NO 3 -N and 0% NH 4 -N:100% NO 3 -N. Increasing NO 3 -N in nutrient solutions from 0 to 100% resulted in increases in both lutein and β-carotene concentrations. Increases in carotenoid concentrations would be expected to increase the nutritional value of kale. Therefore N management should be considered in crop production programmes designed to increase the concentrations of nutritionally valuable carotenoids.

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Cited by 11 publications

References 2 publications

Apium Plants: Beyond Simple Food and Phytopharmacological Applications

Apium Plants: Beyond Simple Food and Phytopharmacological Applications

Nitrogen Application Can Be Reduced without Affecting Carotenoid Content, Maturation, Shelf Life and Yield of Greenhouse Tomatoes

Carotenoid pigments in kale are influenced by nitrogen concentration and form

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