scholarly journals The effect of weed management method on weeds infestation, yield, storage ability and nutritional value of leek (Allium porrum L.)

2021 ◽  
Vol 61 (4) ◽  
pp. 297-307
Keyword(s):  
Dry Matter ◽  
Nutritional Value ◽  
Field Experiments ◽  
Storage Period ◽  
Allium Porrum ◽  
Total Sugars ◽  
Growth Stimulator ◽  
Soluble Phenols ◽  
Hand Weeding ◽  
The Impact

In the years 2012–2014, at The National Institute of Horticultural Research in Skierniewice, research was carried out on determining the impact of various methods of weeding on leek yield, its storage stability and nutritional value after harvest and storage. In the field experiments the following methods were compared: mechanical treatments, mechanical treatments + growth stimulator, soil mulching with polypropylene and black foil and hand weeding. After harvest the leek were storage at the temperature 0°C for 124–150 days depending on the year and after the storage it was sorted as: marketable leeks and plants with diseases symptoms and rotten plants, and also leek’s natural weight loss was determined. After harvest and after storage, the content of dry matter, total sugars and soluble phenols in leeks was determined. The highest marketable yield immediately after harvest was obtained from plants mulched with black materials. After storage, the most marketable leeks were obtained from the control and hand weeded during cultivation. Chemical composition of leek was analysed after harvest and after the storage period. After harvest the highest yield from leek grown in black mulch were obtained and after the storage from control and hand weeding. Chemical analyses showed that the highest dry matter and total sugars contents were found in leek weeded by hand, and after storage mulched with black and polypropylene foil. After harvest, the highest content of soluble phenols was recorded in leek weeded mechanically and treated additionally with a growth stimulator, and after the storage – in mechanically weeded leeks.

scholarly journals Effect of biostimulant application and long-term storage on the nutritional value of carrot

2019 ◽  
Vol 37 (4) ◽  
pp. 451-457 ◽  
Author(s):  
Elżbieta Wszelaczyńska ◽  
Małgorzata Szczepanek ◽  
Jarosław Pobereżny ◽  
Maciej J Kazula
Keyword(s):  
Vitamin C ◽  
Nutritional Value ◽  
Field Experiments ◽  
Foliar Application ◽  
Plant Protection ◽  
Block Design ◽  
Storage Period ◽  
Vegetation Period ◽  
Total Carotenoids ◽  
Total Sugars

ABSTRACT The nutritional value of carrot is determined by the content of total sugars and monosaccharides, carotenoids and vitamins, including vitamin C, in its roots. In 2009-2011, field experiments were carried out concerning the effect of biostimulating preparations applied during the carrot vegetation period on selected nutrients of its roots (total sugars, monosaccharides, carotenoids and vitamin C). Two biostimulants were foliarly applied in doses of 2 or 3 L ha-1 on various dates. Kelpak SL and Asahi SL: one, two or three applications; where, second and third applied at 2-week interval, additionally Kelpak SL: one application at 4-leaf phase, followed by additional application after 4 weeks. The field study was conducted in a randomized block design with four replications. The treatments of plant protection from diseases and pests complied with carrot requirements. The subject of the research was carrot of the Karotan cultivar. The content of selected components in carrot roots was determined directly after harvest and after six months of storage in the storage chamber with controlled temperature and relative air humidity. The foliar application of Kelpak SL in a single dose (2 L ha-1) at 4-leaf development phase resulted in the significant increase of total sugars, reducing sugars, total carotenoids and vitamin C. A six-month storage period resulted in a decrease of total sugars by 5% and ascorbic acid by 16.8% compared to nutritional values measured right after harvest.

scholarly journals The impact of drought stress on the yields and food value of selected forage grasses

2016 ◽  
Vol 69 (2) ◽  
Author(s):  
Mariola Staniak
Keyword(s):  
Soil Moisture ◽  
Water Stress ◽  
Drought Stress ◽  
Dry Matter ◽  
Nutritional Value ◽  
Lolium Multiflorum ◽  
Grass Species ◽  
Forage Grasses ◽  
The Impact

<p>The aim of the study was to compare yields and nutritional value of selected species and cultivars of forage grasses under the optimal moisture conditions and long-term drought stress. The regenerative capacity of plants after dehydration was also assessed. The pot experiment was conducted in years 2009–2010 in IUNG-PIB’s greenhouse in Puławy, Poland. Nine cultivars of four species: <em>Dactylis glomerata</em> (‘Amera’, ‘Minora’), <em>Festuca pratensis</em> (‘Skra’, ‘Fantazja’), <em>Festulolium braunii</em> (‘Felopa’, ‘Agula’, ‘Sulino’), and <em>Lolium multiflorum</em> (‘Gisel’, ‘Lotos’) were investigated in well-watered conditions (70% field water capacity – FWC) and under a long-term drought stress (40% FWC).</p><p>The study showed that stress caused by soil moisture deficiency significantly reduced yields of <em>D. glomerata</em>, <em>F. pratensis</em>, <em>F. braunii</em>, and <em>L. multiflorum</em>. The total yield of dry matter under stress conditions was about 31% lower, compared to the performance achieved on the optimally moisturized treatment. The smallest reduction in dry matter yield under the conditions of water deficit was recorded for <em>D. glomerata</em>, which makes it the most resistant to stress, followed by <em>F. pratensis</em>. The resistance of <em>F. braunii</em> and <em>L. multiflorum</em> to stress was similar and significantly lower. There was a various response of different grasses to the water stress. On the basis of the value of the DSI (drought susceptibility index), the tested cultivars were ranked depending on the sensitivity to drought, starting with the most resistant cultivar: ‘Minora’, ‘Skra’, ‘Fantazja’, ‘Amera’, ‘Sulino’, ‘Agula’, ‘Gisel’, ‘Lotos’, and ‘Felopa’. The digestibility of dry matter and nutrient value of the grasses depended on both the level of soil moisture and grass species. Under the water stress, the digestibility and protein value increased compared to the control objects. <em>Lolium multiflorum</em> and <em>F. braunii</em> had the best nutritional value, while <em>D. glomerata</em> – the weakest.</p>

scholarly journals The Impact of Fertilization Regime on the Crop Performance and Chemical Composition of Potato (Solanum tuberosum L.) Cultivated in Central Greece

Agronomy ◽  
2020 ◽  
Vol 10 (4) ◽  
pp. 474 ◽  
Author(s):  
Spyridon A. Petropoulos ◽  
Ângela Fernandes ◽  
Nikolaos Polyzos ◽  
Vasileios Antoniadis ◽  
Lillian Barros ◽  
...  
Keyword(s):  
Chemical Composition ◽  
Dry Matter ◽  
Nutritional Value ◽  
Slow Release ◽  
Solanum Tuberosum L ◽  
Added Value ◽  
Control Treatment ◽  
Dry Matter Content ◽  
Crop Performance ◽  
The Impact

Potato cultivation is quite demanding in inorganic nutrients and adequate fertilization is a key factor for maximizing yield and producing tubers of high quality. In the present study, a field experiment was carried out to evaluate the effect of various forms of fertilization on crop performance and the nutritional value and chemical composition of two potato varieties (cv. Spunta and cv. Kennebec). For this purpose, five different fertilizer treatments were applied namely: control (C), standard fertilizer (T1), standard fertilizer + zeolite (T2), manure (T3) and slow release nitrogen fertilizer (T4). According to the results, it was observed that slow release treatment (T4) achieved the highest yield for both varieties, while the control treatment presented significantly lower yield compared to the studied fertilization regimes. The dry matter of leaves and shoots was higher in T1 treatment for cv. Kennebec and in T2 and T4 treatments for cv. Spunta, whereas the control treatment presented the highest dry matter content in tubers for cv. Kennebec and T2 and T3 treatments for cv. Spunta. A significant effect of the fertilization regime was also observed on the nutritional value of tubers and more specifically the protein, ash and fat content was increased by treatments T1 and T4, while carbohydrate content was also increased by T3 and T4 treatments for both varieties. Similarly, the total sugars, organic acids, β-carotene and lycopene content was increased in T3 treatment for the Spunta variety, while the antioxidant capacity showed a varied response depending on the fertilizer regime and the tested variety. In conclusion, the fertilization regime has a significant effect not only on the tuber yield but also on the quality of the final product and should be considered as an effective tool to increase the added value of potato crop.

scholarly journals The Effect of Processing on Chemical Constituents of Agaricus spp. Mushrooms

2017 ◽  
Vol 45 (2) ◽  
pp. 507-516 ◽  
Author(s):  
Sándor RÓZSA ◽  
Tincuța-Marta GOCAN ◽  
Vasile LAZĂR ◽  
Ileana ANDREICA ◽  
Melinda RÓZSA ◽  
...  
Keyword(s):  
Dry Matter ◽  
Chemical Constituents ◽  
Storage Period ◽  
Matter Content ◽  
Dry Matter Content ◽  
Edible Fungi ◽  
Total Sugars ◽  
Balanced Diet ◽  
Medicinal Value ◽  
Agaricus Campestris

Agaricus spp. mushrooms are edible fungi of commercial and medicinal importance. Mushrooms convert nutritionally valueless substances into proteinous food with a very efficient bioconversion. Consumption of mushrooms, has increased substantially due to their delicacy, flavour, nutritional and medicinal value, being considered an excellent source of protein, which can contribute to the formulation of a balanced diet. Three species of Agaricus spp. mushrooms were used in this study: Agaricus campestris (L. ex Fr.), Agaricus bisporus (J.E. Lange) and Agaricus blazei (Murrill). This study aims to examine the effects of blanching, soaking and manufacturing processes (sun drying, oven drying and canning) on some chemical constituents of mushrooms (soluble dry matter, protein and total sugars). The analyses were performed initially at conservation and they were repeated after 6, 12 and 18 months of preservation. Since all treatments caused reduction of the dry matter content, it can be concluded that the smallest decrease during the storage period was recorded by soaked and sun dried A. blazei (1.6 g 100 g-1 FM). The maximum soluble dry matter loss was recorded at blanched and canned A. bisporus (2.8 g 100 g-1 FM). Blanching treatment of preheated (sun dried and oven dried) samples, after storage period, led the protein content to slightly decrease, between 0.4 g 100 g-1 DM and 0.8 g 100 g-1 DM. The smallest decrease of total sugars during the storage period was registered by canned, untreated A. campestris with 1.2 g 100 g-1 DM and the largest decrease was registered by blanched oven dried A. blazei with 2.9 g 100 g-1 DM.

scholarly journals Biochemical Indicators and Nitrates in Potatoes during Storage: Modern Cultivation Techniques

2019 ◽  
Vol 49 (1) ◽  
pp. 127-134
Author(s):  
Алексей Бутов ◽  
Alexey Butov ◽  
Анна Мандрова ◽  
Anna Mandrova
Keyword(s):  
Vitamin C ◽  
Drip Irrigation ◽  
Dry Matter ◽  
Field Experiments ◽  
Control Sample ◽  
Storage Period ◽  
Mineral Fertilizers ◽  
Potassium Fertilizer ◽  
Biochemical Indicators ◽  
High Doses

It featured the dynamics of the biochemical parameters of potato tubers in the autumn and winter storage peri- od. The samples were gathered in 2011–2013 during field experiments. The experiments included 12 various doses and ratios of mineral fertilizers under drip irrigation. The soil was leached chernozem (Voronezh region). During 3 storage periods (Sep- tember–April), the content of vitamin C in moderately fertilized tubers decreased by 3.0–3.2 times. The content of vitamin C in heavily fertilized tubers decreased by 3.3–3.4 times. The loss of dry matter and starch at small and moderate doses of fertilizers N30-60P90-120K60-90 amounted to 1.4–1.5 and 1.0–1.1%. The loss of dry matter and starch from high doses of fertilizers N120-150P180-210K150-180 equaled 1.6–2.0 and 1.4–1.7%. The content of nitrates in the tubers gradually decreased during stor- age, and the greatest decrease occurred in April. For moderately fertilized tubers, the residual amount decreased by 3.2–3.3 times by April. For heavily fertilized tubers, it decreased by 2.5–2.9 times against 3.7 times in the control sample. Enhanced nitrogen and nitrogen-potassium fertilizer worsened all the biochemical indicators of the potatoes. In order to maintain optimal biochemical pa- rameters of tubers during storage, the proportion of phosphorus (kg/ha of active substance) had to be increased by 1.5–1.7 times as related to nitrogen. The share of potassium was increased by 1.3 times. The best results (yield = 37.8 t/ha, optimal biochemical pa- rameters, concentration of nitrates = 36.6 mg/%) were achieved by drip irrigation and application of N90P150K120 kg/ha of active ingredient. A dose of N120P180K150, (yield – 41.5 t/ha) was found beneficial, provided the potatoes were filled separately from the total pile. Such potatoes have to be sold at the end of the storage period, when the concentration of nitrates in tubers becomes 2.5– 2.9 times lower.

scholarly journals Nutritional Value of Garden Dill (Anethum graveolens L.), Depending on Genotype

2019 ◽  
Vol 47 (3) ◽  
Author(s):  
Anita BIESIADA ◽  
Kamil KĘDRA ◽  
Katarzyna GODLEWSKA ◽  
Antoni SZUMNY ◽  
Agnieszka NAWIRSKA-OLSZAŃSKA
Keyword(s):  
Antioxidant Activity ◽  
Chemical Composition ◽  
Dry Matter ◽  
Nutritional Value ◽  
Field Experiments ◽  
Digital Object Identifier ◽  
Digital Object ◽  
Anethum Graveolens ◽  
Marketable Yield ◽  
Chemical Composition Of Plants

The yield, chemical composition and antioxidant activity of eight genotypes (‘Krezus’, ‘Turkus’, ‘Kozak’, ‘Szmaragd’, ‘Lukullus’, ‘Herkules’, ‘Ambrozja’, ‘Moravan’) of garden dill (Anethum graveolens L.) biomass was estimated. Field experiments were conducted in 2011-2013 in Poland. The crop lasted 44 days and plants were collected at the 4-5 true leaf stage (a bunch harvest). The highest marketable yield was obtained for ‘Krezus’ and ‘Szmaragd’ cultivars (1.18 kg·m-2), while the lowest for ‘Herkules’ (0.53 kg·m-2). The dry matter of leaves ranged from 15.17% (‘Ambrozja’) to 19.27% (‘Krezus’). The study also proved that the genotype influenced the content of chlorophylls a+b, e.g. 1.10 g·kg-1 (‘Moravan’) and 0.78 g·kg-1 (‘Lukullus’), respectively carotenoids: 21.43 mg·100 g-1 (‘Moravan’) and 11.78 mg·100 g-1 (‘Szmaragd’). The content of nitrates (371.48 mg·kg-1 ‘Lukullus’ - 110 mg·kg-1 ‘Szmaragd’), K (11.30% ‘Moravan’ - 5.37% ‘Kozak’), Ca (2.06% ‘Turkus’ - 1.77% ‘Kozak’), and oils (99.13% ‘Lukullus’ - 93.82% ‘Ambrozja’) was also varied. In most cases the content of Mg, P, sugars and ascorbic acid was on similar level. The antioxidant activity was significantly different between tested groups (12.22 µM·g-1 ‘Turkus’ - 6.27 µM·g-1 ‘Krezus’). The presented research proved that the genotype of garden dill affects yield and chemical composition of plants.   ********* In press - Online First. Article has been peer reviewed, accepted for publication and published online without pagination. It will receive pagination when the issue will be ready for publishing as a complete number (Volume 47, Issue 3, 2019). The article is searchable and citable by Digital Object Identifier (DOI). DOI link will become active after the article will be included in the complete issue. *********

scholarly journals Promising uncommon poaceous and leguminous fodder crops

2020 ◽  
Vol 50 (4) ◽  
pp. 32-39
Author(s):  
O. T. Andreeva ◽  
N. G. Pilipenko ◽  
L. P. Sidorova ◽  
N. Yu. Kharchenko
Keyword(s):  
Dry Matter ◽  
Nutritional Value ◽  
Field Experiments ◽  
Forest Steppe ◽  
Forage Crops ◽  
Sudan Grass ◽  
Green Mass ◽  
Gross Energy ◽  
Digestible Protein ◽  
Feed Unit

The results of research (2016-2018) into productivity, adaptability and nutritional value of poaceous crops (forage millet, Sudan grass) and legumes (fodder beans, spring vetch, garden peas) are presented and analyzed. The research was conducted on meadow chernozem mealy-carbonate soil, light loam by granulometric composition, in the forest-steppe zone of Trans-Baikal Territory. Agricultural technology used for fodder crop cultivation was common for this area. The objects of the research were legumes (Sibirskiye forage beans, Novosibirskaya spring vetch, Holik garden peas), and poaceous varieties (Bystroe forage millet, Novosibirskaya 84 Sudan grass). The experimental work was carried out in accordance with the generally accepted guidelines for field experiments. All the forage crops under study have formed a fairly high productivity: the yield of green mass was 13.0-18.2 t/ha, dry matter – 2.6-3.2, feed units – 2.2-2.7 t/ha, digestible protein – 220-567 kg/ha, gross energy – 26.5-32.2 GJ/ha, with availability of digestible protein 100-210 g per one feed unit. Among leguminous crops, spring vetch and fodder beans had an advantage with the green mass yield of 13.3-15.0 t/ha, the amount of dry matter of 3.1-3.2, feed units of 2.6-2.7 t/ha, digestible protein 494–567 kg/ha, gross energy 32.0–32.2 GJ/ha, with availability of digestible protein of 190–210 g per one feed unit. Garden peas were inferior to spring vetch and fodder beans in yield by 2.3-13.3%, dry matter – by 9.6-12.5, feed units – by 3.8-7.4, digestible protein – by 4.9-17.1, gross energy – by 8.1–8.7%. Among poaceous crops, agrocenoses of Sudan grass had an advantage in productivity and nutritional value. They formed the yield of green mass 18.2 t/ha, the amount of dry matter 3.1, feed units 2.5 t/ha, digestible protein 300 kg/ha, gross energy 31.3 GJ/ha, with availability of digestible protein of 120 g per one feed unit. Fodder millet was inferior to Sudan grass in all respects by 12.0–26.7%, respectively.

scholarly journals Growth, decorative and nutritional values of ornamental cabbage (Brassica oleracea L.) in flowerbed conditions

2021 ◽  
Vol 48 (No. 1) ◽  
pp. 30-37
Author(s):  
Marzena Błażewicz-Woźniak ◽  
Agnieszka Rybicka ◽  
Monika Fil
Keyword(s):  
Dry Matter ◽  
Nutritional Value ◽  
The Other ◽  
Tagetes Patula ◽  
Annual Plants ◽  
Nutritional Values ◽  
Mineral Components ◽  
The Impact ◽  
Nitrogen Phosphorus ◽  
Brassica Oleracea L

Ornamental cabbages are cultivars of cabbages grown for decorative purposes due to the varied shape and colour of their internal leaves. The aim of the study was to determine the course of growth and to assess the decorative and nutritional value of two cultivars of ornamental cabbage (‘Pigeon Red’, ‘Coral Prince’) grown in a flowerbed along with annual plants: the French marigold (Tagetes patula nana L.) and flossflower (Ageratum houstonianum Mill.), using a pine bark mulch. The impact of the marigold and flossflower on the cabbage height and foliage changed with the plant growth. Cabbages growing without the proximity to the other species had the smallest diameter and formed the least leaves; and the plant’s height was lower in September. The cabbage height, foliage and leaf colour were modified by the weather in the subsequent years of research. The proximity of the marigold or flossflower and mulching of the soil with bark did not affect the colour of the leaves. The nutritional value of the ornamental cabbage was high, and the content of the mineral components in the leaves depended largely on their colour. The coloured leaves were more abundant in nitrogen, phosphorus, potassium and magnesium, while the green leaves contained more calcium and sulfur, and slightly more dry matter.

scholarly journals Impact of flucetosulfuron on weed seed bank in wet seeded rice

2018 ◽  
Vol 10 (3) ◽  
pp. 853-859
Author(s):  
Arya S R ◽  
Elizabeth K Syriac
Keyword(s):  
Seed Bank ◽  
Field Experiments ◽  
Block Design ◽  
Seedling Emergence ◽  
Weed Seed ◽  
Time Of Application ◽  
Seed Bank Dynamics ◽  
Before And After ◽  
Hand Weeding ◽  
The Impact

An experiment was conducted to assess the impact of flucetosulfuron, a new generation sulfonylurea herbicide, on weed seed bank dynamics of wet land paddy field. Field experiments were carried out during two consecutive seasons (Kharif 2016 and Rabi 2016-’17), to assess the bio-efficacy of flucetosulfuron in wet seeded rice which was accompanied by weed seed bank assay. Weed seed bank assay of the soil was carried out before and after the field experiments in both the seasons by the seedling emergence method. The experiment on weed seed bank was laid out in Completely Randomised Block Design (CRD) with 12 treatments replicated thrice. Flucetosulfuron @ 20, 25, and 30 g ha-1applied at 2-3, 10-12, and 18-20 days after sowing (DAS) along with two control treatments viz., hand weeding at 20 and 40 DAS and unweeded control comprised the treatments. The emerging weeds were uprooted at 14 days interval up to a period of two months; categorized as grasses, broad leaved weeds, and sedges and counted. Results revealed that non-herbicidal plots recorded significantly higher count of total emerged weeds compared to herbicide applied plots. In all the herbicide applied plots, effective reduction in weed seed bank could be obtained irrespective of the dose of the herbicide. Regarding the time of application, flucetosulfuron applied at 10-12 and 18-20 DAS recorded significantly lower weed seed bank during both the seasons, compared to its application at 2-3 DAS.

Effect of Sunflower Residues and Herbicide on Weed Suppression, Grain Yield and Economics of Transplanted Aman Rice

2020 ◽  
Vol 23 (1) ◽  
pp. 47-58
Author(s):  
SS Tanu ◽  
P Biswas ◽  
S Ahmed ◽  
SC Samanta
Keyword(s):  
Grain Yield ◽  
Dry Matter ◽  
Block Design ◽  
Weed Suppression ◽  
Cost Ratio ◽  
Gross Margin ◽  
Weed Density ◽  
Benefit Cost Ratio ◽  
Hand Weeding ◽  
Environmentally Sound

A field experiment was conducted at Agronomy Field Laboratory, Patuakhali Science and Technology University, Dumki, Patuakhali from July 2018 to November 2018 to evaluate the effect of sunflower residues and herbicides on the yield and economic performance of transplanted Aman rice. Weed control methods tested were T1 = weedy check (Unweeded control), T2 = Weed-free check by hand weeding twice, T3 = Pendimethalin, T4 = Pretilachlor, T5 = Butachlor, T6 = Pyrazosulfuron ethyl, T7 = Bensulfuron methyl + Acetachlor, T8 = Bispyriback sodium, T9 = 2,4-D amine, T10 = MCPA, T11 = Sunflower residues, T12 = Sunflower residues + 100% Pyrazosulfuron ethyl, T13 = Sunflower residues + 75% Pyrazosulfuron ethyl, T14 = Sunflower residues + 50% Pyrazosulfuron ethyl. The experiment was laid out in a randomized complete block design with fourteen treatments replicated thrice. Weedy check registered significantly the highest total weed density (354.67 m-2) and total weed dry matter (51.81 g-2) while weed-free treatment by hand weeding twice recorded significantly the lowest total weed density (6.67 m-2) and total weed dry matter 0.49 g-2) . Weedy check produced the highest weed index (34.24%) and hand weeding produced the lowest. Among different herbicides applied alone, butachlor had the lowest total weed density (15 m-2) and total weed dry matter (6.43 g-2) after hand weeding. Hand weeding recorded the highest grain yield (5.14 t ha-1) which was statistically similar to pendimethalin, pretilachlor, butachlor, bensulfuron methyl + acetachlor and sunflower residues + 100% pyrazosulfuron ethyl. Higher grain yield was attributed to a higher number of panicle m-2, number of filled grains panicle-1 and 1000-grain weight. The highest gross margin (22955 Tk. ha-1) and benefit-cost ratio (1.32) were obtained from butachlor. Integration of sunflower residues with pyrazosulfuron ethyl produced effective weed suppression and satisfactory yield comparable to butachlor. Although the integration is less profitable than butachlor the farmers can use this technology as a feasible and environmentally sound approach in transplanted Aman rice field. Bangladesh Agron. J. 2020, 23(1): 47-58

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