Wyniki wyszukiwania - Biblioteka Nauki

1

Soil mulching with straw in broccoli cultivation for early harvest

100%

Kosterna E.

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tom Vol. 15, nr 2

100--107

EN

All treatments which protect soil from degradation and use of plant protection methods, other than chemicals are of great importance in the cultivation. This effect is attributed, among others, to organic mulches. By limiting the growth of weeds, maintaining proper moisture and reducing daily temperature fluctuations, mulch improves soil conditions for plant growth and development. The experiment was carried out between 2010 and 2012 at the Experimental Farm in Zawady as a split-block design with three replicates. The effect of the kind of straw (rye, corn, rape, buckwheat) and its dose (10 and 20 t ha-1) applied as a mulch on the yield and quality of broccoli ‘Milady F1’ cultivated for early harvest was investigated. The effect of straw was compared to a control plot without mulch. Weather conditions in the successive years of the study had a significant influence on the yield and quality of broccoli. The highest yields with the best parameters were obtained in 2010 and 2012, which were characterized by sufficient rainfall for broccoli. It was not found significant differences in the yield level and weight of head between particular kinds of straw, however, all kinds of straw investigated in the experiment, irrespective of dose, contributed to a significant increase in the yield and favourably influenced the biometric features of broccoli compared to that achieved from cultivation without straw. Soil mulching with corn straw was most favourable to yield and its parameters.

2

The effect of different types of straw mulches on weed-control in vegetables cultivation

100%

Kosterna E.

Journal of Ecological Engineering

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2014

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tom Vol. 15, nr 4

109--117

EN

The experiment was carried out in 2010–2012. The effect of different kinds of straw and its dose applied to soil mulching on the amount and fresh mass of weeds and yield level of broccoli and tomato was investigated. The type of straw mulch applied to the soil mulching influenced number and fresh mass of weeds. This effect could be the result of the properties of the mulch (colour, structure, etc.) or the allelopathic effect on the germination and growth of individual weed species. The most efficient for limiting infestation was mulch from buckwheat and rye straw. Soil mulching, regardless of its kind, causes a decrease in the number and mass of weeds at the beginning of growing period of vegetables. The application of straw at a dose of 20 t∙ha-1 had higher weed-suppressing effect than at a dose of 10 t∙ha-1. When assessing the infestation before harvest the influence of straw mulch was lower but still significant. The application in higher dose of rye and buckwheat straw in broccoli, corn and rape in tomato culti-vation reduced a number of weeds compared to dose of 10 t∙ha-1. The better yielding effect in both vegetable species had soil mulching with straw at a dose of 10 t∙ha-1.

3

Effect of thermal treatment on changes of polyphenols content in broccoli

100%

Wieczorek C.

Polish Journal of Natural Sciences. Supplement

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2007

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tom 04

129-136

4

Assessment of the potential for use post-production residues of cruciferous vegetables within Zero Waste idea

100%

Bieńczak A. , Woźniak P. , Markowska J.

Journal of Research and Applications in Agricultural Engineering

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2023

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tom Vol. 68, nr 1

25--32

EN

The aim of the study was to compare the overall total phenolic compounds content and antioxidant properties of spices (oregano, thyme and rosemary) from ecological and conventional cultivation. The antioxidant activity of the obtained spice extracts was estimated with the use of radical tests (DPPH and ABTS), binding and reduction of metal ions, accelerated Rancimat test and based on the spectrophotometric method. The obtained results indicate that spice extracts from ecological cultivation are characterized by a higher, overall total phenolic compound content compared to spice extracts grown in a conventional system. Ecological spice extracts showed better antioxidant properties than conventional spices in most tests. The results of the statistical analysis show a positive correlation between the total content of polyphenols and the antiradical activity of the extracts. The negative correlation was found between the content of polyphenols and the Rancimat test and the chelating activity. It seems that the usage of organic spice extracts in food production could be considered as natural antioxidants, reducing fat oxidation processes to a greater extent than with conventional cultivations.

5

Soluble phenols content and peroxidase activity in broccoli heads during short therm storage

100%

Starzynska A. , Leja M. , Mareczek A.

Vegetable Crops Research Bulletin

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2001

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tom 54

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nr 1

6

Effect of plant density on the yield and quality of broccoli

100%

Knaflewski M. , Spizewski T.

Vegetable Crops Research Bulletin

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2001

|

tom 55

7

Validation of the analytical method for the determination of flavonoids in broccoli

86%

Tuszynska M.

Journal of Horticultural Research

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2014

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tom 22

|

nr 1

8

Effects of magnetic field irradiation on broccoli seed with accelerated aging

86%

Martinez F. R. , Pacheco A. D. , Aguilar C. H. , Pardo G. P. , Ortiz E. M.

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tom 21

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nr 1

EN

In order to improve the physiological quality of aged broccoli seed (Brassica oleracea var. Waltham29), in this study a variable magnetic field (VMF) of 3.6 mT, 60 Hz by 5min was used as pre-sowing treatment. The accelerated aging treatment was applied for 0, 48 and 72 h (AA0h, AA48h and AA72h) and then the VMF treatment, under a randomised complete block design with 4 replications of 30 seeds. For seeds aged for 72 h a final germination of 20% was obtained, whereas without magnetic stimulation it was null. However, the magnetic bio-stimulation in 48 h aged seeds was significantly negative, reducing the final germination by 45.83% compared to the treatment without magnetic field, while the VMF effects in unaged seed were zero. The variable magnetic field effects depended on the seed aging time, resulting in positive, negative and null outcomes (responses) in vigour variables.

PL

W celu uzyskania poprawy właściwości fizjologicznych nasion brokuła (Brassica oleracea var. Waltham 29) poddanych przyspieszonemu starzeniu, zastosowano przedsiewne zmienne pole magnetyczne (VMF) o wartości 3,6 mT, 60 Hz przez 5 min. Proces przyspieszonego starzenia prowadzono przez 0, 48 and 72 h (AA0h, AA48h i AA72h), po czym nasiona poddawano działaniu VMF. Badanie prowadzono metodą bloków losowych w 4 powtórzeniach po 30 nasion. Przyspieszone starzenie przez 72 godziny spowodowało wzrost wskaźnika kiełkowania nasion o 20%, podczas gdy dla próby bez działania pola magnetycznego wynik był zerowy. W przypadku nasion poddanych starzeniu przez 48 godzin efekt stymulacji magnetycznej był negatywny, powodując spadek końcowego wskaźnika kiełkowania o 45,83% w porównaniu do wariantu bez pola magnetycznego. Dla nasion niepoddawanych starzeniu wpływ działania VMF był zerowy. Wpływ działania zmiennego pola magnetycznego na nasiona był uzależniony od czasu starzenia nasion, powodując pozytywne, negatywne lub zerowe zmiany w wartościach wskaźników ich wigoru.

9

Wpływ sposobu obróbki cieplnej na poziom polifenoli w świeżych i mrożonych brokułach

86%

Wieczorek C. , Bilska B. , Przybylski W. , Klocek A.

Postępy Techniki Przetwórstwa Spożywczego

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2013

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tom nr 2

36--39

PL

Celem pracy przedstawionej w artykule jest ocena wpływu obróbki cieplnej na poziom polifenoli w brokułach świeżych i mrożonych. W zależności od rodzaju obróbki cieplnej (gotowanie na parze lub w wodzie) oraz założonych parametrów (czas) uzyskano zróżnicowane zawartości polifenoli. Wraz z wydłużeniem czasu gotowania zawartość tych związków uległa zmniejszeniu. Gotowanie na parze w mniejszym stopniu niż gotowanie w wodzie wpłynęło na zmniejszenie zawartości polifenoli w badanym warzywie. Brokuły świeże, niepoddane obróbce cieplnej zawierały o 44% więcej polifenoli niż mrożone.

EN

Purpose of work was estimate the influence of heat treatment on level of polyphenols in fresh and frozen broccoli. Depending on kind of heat treatment (cooking in steam and cooking in water) and set up parameters (time) got different contents of polyphenols. Contents of this substances has undergone drop along with stretch time of cooking. Cooking in steam in smaller degree than cooking in water has effected drop of contents of polyphenols in vegetables. Fresh, not heat- treated broccoli, included about 44% more polyphenols then frozen.

10

Uprawa brokulow na zbior jesienia [cz.1]

86%

Cieszynska A.

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nr 06

10

11

Optimization of glucosinolate bioconversion into isothiocyanates using response surface methodology

86%

Alvarez Jubete L. , Valverde J. , Smyth T. , Barry Ryan C.

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tom 61

|

nr Suppl.1

12

Mineral composition and the content of phenolic compounds of ten broccoli cultivars

86%

Kaluzewicz A. , Bosiacki M. , Fraszczak B.

Journal of Elementology

|

2016

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tom 21

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nr 1

EN

Our objective was to determine the content of macro- and micronutrients, toxic heavy metals as well as total phenols in 10 broccoli (Brassica oleracea var. italica) cultivars. The experiment was designed at the Poznań University of Life Sciences, Poland, and completed during two plant growing seasons. Broccoli seedlings were planted in a field in early July and the plants were harvested between September and October. The content of general forms of nitrogen was measured by distillation with the Kjeldahl method. The content of potassium, calcium and sodium was assessed by flame photometry, and the content of magnesium, cadmium, lead, nickel, copper, zinc, manganese and iron was determined by flame atomic absorption spectroscopy (FAAS). The content of heavy metals, macronutrients and sodium in the broccoli heads depended on a cultivar. Having analyzed the levels of macronutrients in ten broccoli cultivars, it was concluded that cv. Agassi and Tradition had the highest content of nitrogen and phosphorus. A very high amount of phosphorus was also found in cv. Beaumont. The highest concentrations of calcium and potassium were found in cv. Monte Carlo. The cultivars Agassi, Beaumont, Tiburon and Tradition were characterized by the highest content of magnesium. The highest content of sodium occurred in the cultivars Beaumont and Monopoly. With respect to micronutrients, the highest content of iron, copper, zinc and manganese was revealed in cv. Agassi. The highest content of nickel was determined in the cultivars Beaumont and Monte Carlo. In addition, the cultivar Monte Carlo was characterized by the highest content of lead, and Beaumont had the highest content of cadmium. However, the maximum permissible levels of cadmium and lead were not exceeded in the heads of the ten broccoli cultivars. In both years of the study, the highest content of phenols was found in cv. Steel and the lowest one appeared in cv. Agassi.

13

Wpływ obniżonego ciśnienia na trwałość brokułów przechowywanych chłodniczo

86%

Klimczak J. , Irzyniec Z.

Chłodnictwo : organ Naczelnej Organizacji Technicznej

|

1999

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tom Vol. 34 / nr 8

46-49

PL

Badania trwałości brokuł przechowywanych chłodniczo (temperatura 2°C) pod zmniejszonym ciśnieniem (5 hPa) wykazały, że ogranicza ono znacznie straty masy (ok. 15-krotnie), natomiast przyspiesza niekorzystne zmiany cech sensorycznych, głównie zapachu, co w konsekwencji skraca okres przechowywania o 5 dni w porównaniu do surowca przechowywanego w tej samej temperaturze pod ciśnieniem atmosferycznym. Badania kinetyczne wykazały, że degradacja witaminy C w warunkach próżniowych postępuje według odmiennego mechanizmu niż w atmosferze powietrza, co jednak nie ma istotnego wpływu na stabilność tej witaminy. Odmienny mechanizm psucia się stwierdzono również w przypadku cech sensorycznych.

EN

The study on the stability of broccoli stored at the temperature of about 2°C under decreased pressure (5 hPa) is presented in this paper. It is hown that vacuum limits mass losses considerably (about 15 times) and it accelerates unfavourable changes in sensory qualities in particulary the flavour. Consequently, it reduces the shelf life by five days in comparison to the shelf life of the raw material stored at the same temperature in the air. Kinetics investigation demonstrated that the degradation of vitamin C in vacuum conditions followed a different mechanism that in the air. That difference, however, did not have essential influence on the stability of the vitamin. A different mechanism of damage was also found in the case of sensory qualities.

14

Brokul - warzywo malo znane

86%

Szeliga A.

Biuletyn Informacyjno-Handlowy. Ośrodek Doradztwa Rolniczego Boguchwała

|

1997

|

nr 06

6

15

Thermal degradation of sulphur containing aliphatic glucosinolates in broccoli sprouts

86%

Hanschen F. S. , Platz S. , Rohn S. , Kroh L. W.

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tom 61

|

nr Suppl.1

16

Effect of biostimulants on chlorophyll fluorescence parameters of broccoli (Brassica oleracea var. italica) under drought stress and rewatering

86%

Kaluzewicz A. , Baczek-Kwinta , Krzesinski W. , Spizewski T. , Zaworska A.

Acta Scientiarum Polonorum. Hortorum Cultus

|

2018

|

tom 17

|

nr 1

EN

The aim of the research was to determine the influence of biostimulants amino acids and amino acids + Ascophyllum nodosum filtrate on two broccoli cultivars ‘Agassi’ and ‘Tiburon’ and their response to soil drought. The plants were watered with Ascophyllum nodosum filtrate before planting and sprayed with amino acids after planting three times. Chlorophyll fluorescence measurements were performed before, during and after stress. They showed a considerable difference in cultivars’ response to stress, with ‘Agassi’ being more sensitive. Application of biostimulants enhanced the tolerance to drought stress. Maximum photochemical efficiency of PSII was unchanged, whereas the quantum yield of electron transport and photochemical fluorescence quenching values increased and the non-photochemical fluorescence quenching decreased. Moreover, the apparent photosynthetic electron transport rate rose. Chlorophyll content index was affected by the cultivar and application of biostimulants.

17

The effect of plant spacing on the yield and quality of three broccoli cultivars in autumn growing

86%

Kunicki E. , Capecka E. , Siwek P. , Kalisz A.

Folia Horticulturae

|

1999

|

tom 11

|

nr 2

18

The effect of transplant age and planting time on yield and quality of autumn broccoli

86%

Wlazlo A. , Kunicki E.

|

nr 2

19

Free amino acids and proline as indices of post-harvest senescence of broccoli

86%

Leja M. , Starzynska A. , Mareczek A.

Vegetable Crops Research Bulletin

|

2001

|

tom 54

|

nr 1

20

The effect of foliar nutrition with urea on yield quality of broccoli cv. Lord F1

86%

Rydz A.

Vegetable Crops Research Bulletin

|

2001

|

tom 54

|

nr 1