The effects of plant density and irrigation on phenolic content in cauliflower

Kałużewicz, Alina; Lisiecka, J.; Gąsecka, Monika; Krzesiński, W.; Spiżewski, T.; Zaworska, A.; Frąszczak, B.

doi:10.17221/60/2016-hortsci

Cited by 11 publications

(14 citation statements)

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“…The lower IWA in 2018 was due to both the lower evaporative demands and the higher incidence of precipitation ( Figure 1). The differences between IWA in different years were also reported by Bozkurt et al [20] in Turkey, and Kałużewicz et al [47] in Poland. IWA in full irrigation strategy (T1) in 2017 is similar to that reported in [20] (212 mm for 2006), while the IWA in 2018 is similar to that reported in [47] (104 mm for 2012 and 2013).…”

Section: Discussionsupporting

confidence: 72%

Deficit Irrigation as a Sustainable Practice in Improving Irrigation Water Use Efficiency in Cauliflower under Mediterranean Conditions

Abdelkhalik

Pascual

Nájera³

et al. 2019

Agronomy

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Water shortage is one of the major constraints in vegetable production. Deficit irrigation is a sustainable technique that improves irrigation water use efficiency. Field studies were conducted during two growing seasons to evaluate the effects of deficit irrigation on plant growth, plant water status, productive response (curd yield and quality), irrigation water use efficiency (IWUE), and crop profitability of cauliflower. Nine irrigation treatments were used, applying 100%, 75% (moderate), or 50% (severe) of the irrigation water requirements (IWR) during the entire growing season (Continued Deficit Irrigation, CDI), or 75% and 50% of IWR during one of the following stages (Regulated Deficit Irrigation, RDI): Juvenility, curd induction, and curd growth. Severe deficit irrigation applied during juvenility and curd induction reduced the plant size, but it only led to a significant reduction of marketable yield (22%), and average curd size and weight if it was maintained throughout the crop cycle, supposing the highest IWUE (43.6 kg m−3). Moderate CDI or severe RDI during juvenility did not reduce significantly the curd yield compared to fully irrigated plants (4.4 kg m−2), thereby obtaining similar gross revenues (16,859 € ha−1) with important water savings (up to 24.3%), improving IWUE (up to 34.2 kg m−3).

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Section: Discussionsupporting

confidence: 72%

Deficit Irrigation as a Sustainable Practice in Improving Irrigation Water Use Efficiency in Cauliflower under Mediterranean Conditions

Abdelkhalik

Pascual

Nájera³

et al. 2019

Agronomy

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“…The use of soil blocks, with several seedlings per block compared with traditional planting methods, greatly changes plant spacing which may affect photosynthetic photon flux density (PPFD) interception by plant canopy. Light is one of the primary factors that affect plant growth, yield, and the accumulation of phytochemicals such as phenols ( Ghasemzadeh et al., 2010 ; Karimi et al., 2013 ; Bian et al., 2014 ; Chua et al., 2015 ; Kałużewicz et al., 2017 ; Jaganath and Zainal, 2016 ; Ilic et al., 2018 ). The concentration of NO 3 in plant tissues increases due to low-level light conditions ( Colla et al., 2018 ; Marschner, 2012 ; Santamaria et al., 1999 ; Santamaria, 2006 ).…”

Section: Introductionmentioning

confidence: 99%

Plant growth, phytochemical accumulation and antioxidant activity of substrate-grown spinach

Machado

Alves-Pereira

Ferreira

2018

Heliyon

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Spinach production in soilless cultivation systems, mainly in substrate, transplanted with soil blocks and drip-irrigation is increasing worldwide. However, spinach establishment with soil blocks, with several seedlings per block compared with traditional planting methods, may affect light interception by plant canopy, wetting and salt patterns in root medium and therefore the plant growth and functional value of spinach. The effects of soil block number (plant density) and emitters spacing on plant growth, nitrate, proline and total phenols content and antioxidant activity were evaluated in spinach (Spinacia oleracea L). Five seedlings per soil block were transplanted to Styrofoam boxes filled with the substrate and grown during winter in an unheated greenhouse. Four treatments were carried out with two soil block numbers [8 (160 plants/m2) and 14 (280 plants/m2) soil blocks per Styrofoam box] and two emitter spacing [emitters spaced every 25 and 12.5 cm, respectively, with 4 and 8 emitters per Styrofoam box]. Neither plant density nor emitter spacing had any effect on shoot dry weight. Fresh yield increased as planting density and the number of emitters per Styrofoam box increased. The yield in Styrofoam boxes with 160 plants/m2 and 8 emitters (3.85 kg m−2) was ≈31 % lower than that obtained in treatment with 280 plants/m2 and 8 emitters (5.09 kg m−2). However, the leaf blade of the latter treatment presented a higher content of phenols and proline and greater antioxidant activity (FRAP and DPPH) as well as lower content of nitrate and lesser PDH activity. Decrease of space between emitters reduced the leaf blade nitrate concentration of spinach grown in a greenhouse during the winter. Leaf blade antioxidant activity (FRAP) decreased as planting density increased.

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“…Several studies show a correlation between total phenolic content and DPPH radical scavenging activity under other environmental conditions, such as precipitation, humidity, and solar radiation intensity [ 43 , 45 ]. To support this, Kałużewicz et al [ 46 ] revealed that the concentration of phenolic content in cauliflower is significantly increased with the amount of irrigation water. Since the average rainfall in our research area during the third harvesting cycle (350 mm) was higher than that of the first and second harvesting cycles, 230 and 250 mm, respectively [ 47 ].…”

Section: Resultsmentioning

confidence: 99%

Effect of chicken manure and chemical fertilizer on the yield and qualities of white mugwort at dissimilar harvesting times

et al. 2022

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One of the key components that affects soil productiveness, plant growth, and crop quality is fertilization. The effect of fertilizer, both organic and chemical, on the extremely acidic (pH 4.10) sandy loam soil chemical properties, yield, and quality of white mugwort grown were evaluated in this study. The field experiment arranged in a randomized complete block design, with four replications was conducted in Prachin Buri province, Thailand. There were six treatments, no fertilization (control), chemical fertilizer (25-7-7 + 46-0-0) applied at 187.50 (66.56 N:6.77 P2O5:6.77 K2O kg ha-1) kg ha-1 and applied at 375.00 (133.12 N:13.13 P2O5:13.13 K2O kg ha-1) kg ha-1, chicken manure applied at 3.36, 6.72, and 10.08 t ha-1. After harvesting, application of chicken manure tended to increase soil organic matter compared to the control, however, the application of chemical fertilizer did not show the same effect. The fresh weight of white mugwort increased with the rise in both fertilizer levels. Chicken manure application at 10.08 t ha-1 produced the highest fresh weight at all times. The level of accumulated nitrate was significantly greater when fertilizer rates increased. In addition, the total phenolic content of the white mugwort fertilized with chicken manure was higher than that fertilized with chemical fertilizer. However, there was no association between the DPPH radical scavenging capacity at harvesting times and different fertilization. Based on the results, chicken manure applied at 10.08 t ha-1 gave the best yield and higher total phenolic content of white mugwort, which was probably due to the improved soil organic matter.

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The effects of plant density and irrigation on phenolic content in cauliflower

Cited by 11 publications

References 50 publications

Deficit Irrigation as a Sustainable Practice in Improving Irrigation Water Use Efficiency in Cauliflower under Mediterranean Conditions

Deficit Irrigation as a Sustainable Practice in Improving Irrigation Water Use Efficiency in Cauliflower under Mediterranean Conditions

Plant growth, phytochemical accumulation and antioxidant activity of substrate-grown spinach

Effect of chicken manure and chemical fertilizer on the yield and qualities of white mugwort at dissimilar harvesting times

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