Enhancing the Quality of Two Species of Baby Leaves Sprayed with Moringa Leaf Extract as Biostimulant

Natural biostimulants obtained by plants are intensively used nowadays to improve crop yield and quality. The current study aimed to evaluate the effects of leaf extract of moringa (Moringa oleifera Lam.) (MLE) in modifying baby leaf characteristics of two genotypes of Brassica. The trial was started in October 2020 in a greenhouse; a cultivar of kale ‘Cavolo Laciniato Nero di Toscana’ (CL) and a Sicilian landrace of sprouting broccoli ‘Broccoli Nero’ (BN) were used. The plants, after 15, 30 and 40 days from sowing, were treated with MLE, while the control plants (C) with distilled water. Treatment with MLE modified morphological and nutritional value, but with different behavior in the two genotypes. In fact, in BN the treatment reduced the antioxidant activity (2.2-diphenyl-1-picrylhydrazyl (DPPH)) by 54%, while in CL the treatment increased this parameter by 40%. For the phenolic concentration and the sugar content the values recorded were significantly increased by MLE compared to control plants in CL, where in BN a significant reduction was registered. The CL plants treated with MLE showed a significant reduction (−70%) in nitrate content compared to the control plants; a negative effect was, instead, observed in BN, where the plants treated with moringa showed an increase of 60%. Results of this study showed how the foliar application of MLE was effective in improving various nutraceutical parameters, in particular in kale, because it appears to be a species-specific response.

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The effect of ecological growing on the potatoes yield and quality

Plant Soil and Environment ◽

10.17221/3603-pse ◽

2011 ◽

Vol 51 (No. 9) ◽

pp. 397-402 ◽

Cited By ~ 14

Author(s):

K. Hamouz ◽

J. Lachman ◽

P. Dvořák ◽

V. Pivec

Keyword(s):

Mechanical Damage ◽

Field Trials ◽

Matter Content ◽

Point Of View ◽

Nitrate Content ◽

Dry Matter Content ◽

Yield And Quality ◽

Negative Effect ◽

Cultivated Potatoes

In the years 1995–1997 the effect of ecological growing on the yield and selected parameters of quality of consumer potatoes (in comparison with conventional way) were investigated. The ecological way of growing differed in the lack of chemical protection against diseases and pests and industrial fertilizers. Field trials were realised with seven varieties (Impala, Karin, Agria, Korela, Rosella, Santé and Ornella) on two sites (Uhříněves and Valečov). The ecological way of growing had markedly negative effect on the yield (decrease by 36%). In qualitative parameters the ecological way increased inconclusively polyphenol content (by 10.2%), decreased inconclusively nitrate content (by 11.0%) and reducing sugars (by 22%). It did not affect dry matter content, resistance of tubers to mechanical damage, table value and glycoalkaloid content. Variety Santé achieved the best results from the point of view of the yield and majority of qualitative parameters among varieties. Qualitative parameters of ecologically cultivated potatoes were significantly affected by the year of cultivation.

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Application of Directly Brewed Compost Extract Improves Yield and Quality in Baby Leaf Lettuce Grown Hydroponically

Agronomy ◽

10.3390/agronomy10030370 ◽

2020 ◽

Vol 10 (3) ◽

pp. 370

Author(s):

Almudena Giménez ◽

Juan A. Fernández ◽

José A. Pascual ◽

Margarita Ros ◽

Catalina Egea-Gilabert

Keyword(s):

Nutrient Solution ◽

Nitrate Content ◽

Pythium Irregulare ◽

Yield And Quality ◽

Negative Effect ◽

Floating System ◽

Health Promoting ◽

Leaf Lettuce ◽

Compost Extract

The aim of this work was to study whether the application of a directly brewed compost extract (added in the nutrient solution or by microsprinkler) could be used to improve the yield and quality of baby leaf red lettuce growing in a floating system, and to control the incidence of Pythium irregulare. Its effect on the quality of fresh-cut red lettuce was also studied. For this, two experiments were carried out over two growing cycles (winter–spring and autumn). The results showed that the use of compost extract added to the nutrient solution improved baby leaf lettuce growth and quality, reducing the nitrate content and enhancing the content of potentially health-promoting compounds such as phenols and flavonoids and the antioxidant capacity. Microbial quality was maintained during storage and the compost extract had no negative effect on the microbial load of the final product. In addition, application of the compost decreased the population of P. irregulare in the water. It is concluded that the application of directly brewed compost extract is of potential use in a sustainable soilless production system for baby leaf red lettuce, since it improves the yield and quality of the product and is able to control the incidence of P. irregulare.

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Yield formation and quality characteristics of early potatoes during a short growing period

Agricultural and Food Science ◽

10.2137/1239099043633314 ◽

2008 ◽

Vol 13 (4) ◽

pp. 390 ◽

Cited By ~ 5

Author(s):

L. MUSTONEN

Keyword(s):

Nitrogen Fertilization ◽

Dry Matter ◽

Tuber Yield ◽

Sugar Content ◽

Matter Content ◽

Nitrate Content ◽

Dry Matter Content ◽

Nitrogen Application ◽

Yield And Quality

The effects of nitrogen fertilization on the yield and quality of early potato (Solanum tuberosum L.) were studied at MTT Agrifood Research Finland during 19961997. Cultivars were harvested at three times. The experimental layout was a split-split-plot with harvest times as main plots and nitrogen fertilization and potato cultivars as the subplots. The fertilizer treatments were 60 and 120 kg N ha-1 and the cultivars tested were Timo, Gloria and Van Gogh. The harvest times were 5762, 7075 and 8590 days after planting. Application of 120 kg N ha-1 intensifi ed canopy development and increased leaf area of the stands. At early harvest the tuber yield of all cultivars receiving the higher nitrogen application increased by 0.52.5 t ha-1. The highest yielding cultivar was Timo. At last harvest, the higher nitrogen treatment increased yield by 3.06.2 t ha-1. The highest yielding cultivars were Timo and Van Gogh. The dry matter content of tubers was very low, 13.817.2%, at the fi rst harvest and the higher nitrogen application reduced dry matter content by 0.31.0%. The highest fertilizer application rate resulted in the largest tuber size. Nitrogen application, however, affected the quality of potatoes by decreasing the dry matter content. The nitrate content in tubers increased signifi cantly with the increasing level of nitrogen. The range of nitrate content in tubers fl uctuated between 13 and 189 mg kg-1 fresh weight showing good controlling of nitrate values. Harvest time affected sucrose content and the reducing sugar content in tubers, but nitrogen fertilizer did not change the sugar content of tubers. As tuber yield and quality during a short growing season are affected mainly by intercepted radiation, methods to increase tuber yield should focus on reducing the time to emergence, improving haulm growth after emergence and increasing the harvest index.;

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Grape yield and quality of the grapevine cultivar limberger treated with plant growth regulators

Journal of Agricultural Sciences Belgrade ◽

10.2298/jas0402141t ◽

2004 ◽

Vol 49 (2) ◽

pp. 141-147

Author(s):

Slavica Todic

Keyword(s):

Plant Growth ◽

Gibberellic Acid ◽

Growth Regulators ◽

Shoot Growth ◽

Foliar Application ◽

Sugar Content ◽

Grapevine Cultivar ◽

Yield And Quality ◽

Grape Yield

The effects of foliar application of paclobutrasol (PK), chlorcholinechloride (CC) and gibberellic acid (GA3) on grape yield and quality of the grapevine cultivar Limberger were studied. PK and CC strongly inhibited shoot growth. The number of berries per bunch, bunch weight and grape yield per m2 were increased. At the same time, sugar content of must was either reduced (CC2000) or retained at the level of control (PK1000, CC1000). The GA150 treatment resulted in lower grape yield. At the concentration of GA3 100mg/l no significant increase in yield was found, whilst sugar content of must was significantly increased.

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Foliar application and seed priming of salicylic acid affect growth, fruit yield, and quality of grape tomato under drought stress

Scientia Horticulturae ◽

10.1016/j.scienta.2021.109904 ◽

2021 ◽

Vol 280 ◽

pp. 109904

Author(s):

Remi Chakma ◽

Arindam Biswas ◽

Pantamit Saekong ◽

Hayat Ullah ◽

Avishek Datta

Keyword(s):

Salicylic Acid ◽

Drought Stress ◽

Foliar Application ◽

Seed Priming ◽

Fruit Yield ◽

Yield And Quality

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Urea-Doped Calcium Phosphate Nanoparticles as Sustainable Nitrogen Nanofertilizers for Viticulture: Implications on Yield and Quality of Pinot Gris Grapevines

Agronomy ◽

10.3390/agronomy11061026 ◽

2021 ◽

Vol 11 (6) ◽

pp. 1026

Author(s):

Federica Gaiotti ◽

Marco Lucchetta ◽

Giacomo Rodegher ◽

Daniel Lorenzoni ◽

Edoardo Longo ◽

...

Keyword(s):

Calcium Phosphate ◽

Nitrogen Source ◽

Foliar Application ◽

N Fertilization ◽

Plant Nitrogen ◽

Yield And Quality ◽

Berry Quality ◽

Potential Benefits ◽

Calcium Phosphate Nanoparticles

In recent years, the application of nanotechnology for the development of new “smart fertilizers” is regarded as one of the most promising solutions for boosting a more sustainable and modern grapevine cultivation. Despite showing interesting potential benefits over conventional fertilization practices, the use of nanofertilizers in viticulture is still underexplored. In this work, we investigated the effectiveness of non-toxic calcium phosphate nanoparticles (Ca3(PO4)2∙nH2O) doped with urea (U-ACP) as a nitrogen source for grapevine fertilization. Plant tests were performed for two years (2019–2020) on potted adult Pinot gris cv. vines grown under semi-controlled conditions. Four fertilization treatments were compared: N1: commercial granular fertilization (45 kg N ha−1); N2: U-ACP applied in fertigation (36 kg N ha−1); N3: foliar application of U-ACP (36 kg N ha−1); C: control, receiving no N fertilization. Plant nitrogen status (SPAD), yield parameters as well as those of berry quality were analyzed. Results here presented clearly show the capability of vine plants to recognize and use the nitrogen supplied with U-ACP nanoparticles either when applied foliarly or to the soil. Moreover, all of the quali–quantitative parameters measured in vine plants fed with nanoparticles were perfectly comparable to those of plants grown in conventional condition, despite the restrained dosage of nitrogen applied with the nanoparticles. Therefore, these results provide both clear evidence of the efficacy of U-ACP nanoparticles as a nitrogen source and the basis for the development of alternative nitrogen fertilization strategies, optimizing the dosage/benefit ratio and being particularly interesting in a context of a more sustainable and modern viticulture.

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Foliar application of silicon and the effect on wheat seed yield and quality

Journal of Seed Science ◽

10.1590/s2317-15372013000100012 ◽

2013 ◽

Vol 35 (1) ◽

pp. 86-91 ◽

Cited By ~ 7

Author(s):

Samantha Rigo Segalin ◽

Caroline Huth ◽

Thais D'Avila Rosa ◽

Diógenes Barella Pahins ◽

Liliane Marcia Mertz ◽

...

Keyword(s):

Seed Yield ◽

Foliar Application ◽

Accelerated Aging ◽

Dry Weight ◽

Wheat Cultivars ◽

Wheat Seed ◽

Germination Test ◽

Yield And Quality ◽

Physiological Quality

Adequate nutrients for plants are important for increasing the yield and quality of the seeds produced. The objective of this study was to evaluate foliar fertilization with silicon in wheat and its effect on seed yield and physiological quality. Treatments consisted of two silicon dosages (three and six liters silicon per hectare) and the control (no silicon) and five wheat cultivars: OR "Quartzo", OR "Ônix", Fundacep "Linhagem", Fundacep "Campo Real" and Fundacep "Horizonte". The experimental design was randomized blocks with four replications. After physiological maturity, harvesting and threshing of the seeds were done manually. Seed samples were evaluated for yield and physiological quality from the germination test, first germination count, seedling dry weight, accelerated aging, electrical conductivity, 1000 seeds and hectoliter weights. The results showed that the foliar application of silicon at the dosages tested did not affect the yield and physiological quality of the seeds produced by the wheat cultivars.

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Impact of zinc fertilization on growth, yield and quality of zero till wheat (Triticum aestivum L.)

Journal of Environmental Biology ◽

10.22438/jeb/42/2/mrn-1598 ◽

2021 ◽

Vol 42 (2) ◽

pp. 326-331

Author(s):

M. Singh ◽

◽

K.S. Sandhu ◽

Keyword(s):

Foliar Application ◽

Foliar Spray ◽

Growth Yield ◽

Triticum Aestivum L ◽

Recommended Dose ◽

Zn Deficiency ◽

Soil Application ◽

Yield And Quality ◽

The Impact

Aim: To determine the impact of soil and foliar application of ZnSO4.7H2O at late stages of wheat as heading initiation (5% ear formation), 100% heading (complete ear formation) and heading initiation and 100% heading along with recommended dose of fertilizer on growth, yield and quality of zero till wheat. Methodology: The field experiment was conducted on zero till wheat. The treatments consisted of control (no Zn), soil application of 12.5, 25, 37.5, 50 kg ha-1 ZnSO4.7H2O and foliar application of 0.5% Zn as one spray at heading initiation (5% ear formation), one spray at 100% heading (complete ear formation) and two sprays at heading initiation and 100% heading with recommended dose of fertilizer. These treatments were evaluated in RBD with three replications. Results: Soil application of 50, 37.5 and 25 kg Zn ha-1 with two foliar sprays of 0.5% at heading initiation (5% ear formation) and 100% heading (complete ear formation) stages gave significantly higher average grain and straw yield and Zn concentration in grain than other treatments, including control. Interpretation: Enhanced application of Zn as soil and foliar application ameliorates soil Zn deficiency and increases protein content in grains, which might influence the quality and yield of zero tilled wheat. Key words: Foliar spray, Grain yield, Wheat, Zinc

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Elma Bitkisi (Malus domestica L.)’nde Foliar Uygulanan Salisilik Asitin Donmaya Karşı Etkileri

Turkish Journal of Agriculture - Food Science and Technology ◽

10.24925/turjaf.v3i5.221-225.266 ◽

2015 ◽

Vol 3 (5) ◽

pp. 221 ◽

Cited By ~ 1

Author(s):

Bengü Türkyılmaz Ünal ◽

Oğuzhan Mentiş ◽

Ethem Akyol

Keyword(s):

Superoxide Dismutase ◽

Salicylic Acid ◽

Malus Domestica ◽

Foliar Application ◽

Photosynthetic Pigment ◽

Freezing Stress ◽

Control Group ◽

Yield And Quality ◽

Physiological And Biochemical

In our study we aim to increase frost resistance and improve the yield and quality of apple is important in Turkey and world economy. Phenological and morphological observations, physiological and biochemical analyzes were carried out in apple (Malus domestica L.) plants. It was studied to determine the effects of foliar Salicylic acid (0, 500 ppm/plant and 1000 ppm/plant) on adaptation of this plant when exposed to freezing stress, the quality and yield. Leaf photosynthetic pigment contents, total protein amount, proline amount, superoxide dismutase and peroxidase enzymatic activities were measured. The study planned by random experimental design and statistical analysis of data with SPSS program (LSD test) were made. It was determined that fruit and shoot numbers were increased in samples exposed to 500 ppm salicylic acid and while fruit weights were increased in samples exposed to 500 ppm and 1000 ppm salicylic acid compared to the control. Also, colour of plants were darkened. Chla, chlb, total chl, proline, superoxide dismutase and peroxidase amounts were increased significantly compared to the control group. Increases occured in the carotenoid and the protein amounts are not significant statistically. In the light of obtained data, foliar application of salicylic acid were found to reduce the effects of freezing stress and to increase the yield and quality of apple plants.

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