Wyniki wyszukiwania - Biblioteka Nauki

1

Genetic variability, heritability and genetic advance for yield and yield components in watermelon (Citrullus lanatus Thunb.)

100%

Anburani A. , Kannan P. , Muthumanickam K.

World News of Natural Sciences

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2019

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tom 25

22-30

EN

Field investigation was carried out to study the genetic variability, heritability and genetic advance and the variability studies showed significant differences among the thirty genotypes for all the thirteen characters. Yield per plant was maximum in CL 4 genotype collected from Atchirupakkam in Villupuram district. The characters viz., number of vines per plant, sex ratio, days to first female flowers, node number of first female flower, days to fruit maturity and number of fruits per plant were recorded the maximum in the same genotype. Genetic analysis indicated maximum phenotypic and genotypic coefficient of variation for single fruit weight and 100 seed weight. The characters viz., fruits diameter, flesh thickness, number of fruits per plant and yield per plant, recorded highest estimate of PCV and moderate estimation of GCV. The characters viz., number of seeds per fruits, flesh thickness, number of primary branches and fruit diameter recorded moderate estimate of PCV and GCV. Lower estimation of GCV was observed for sex ratio, fruit length and number of male and female flowers. High heritability (broad sense) was observed for 100 seed weight, number of seeds per fruit, single fruit weight, vine length, fruit diameter, fruit length, flesh thickness, number of male flowers,sex ratio, yield per plant, number of primary branches per plant, number of female flowers and number of fruits per plant. Based on mean performance, CL 4 followed by CL 22 and CL 10 were selected as the best genotypes in watermelon for the costal ecosystem, by virtue of their higher yield combined with desirable component characters.

2

Physical property of watermelon. Compressive characteristics of flesh of watermelon at static loading

100%

Kawamura T.

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nr 3

3

Price transmission of melons (cucumis melo and citrullus lanatus) in Myanmar – China border trade

88%

Lwin W. Y. , Brorsen W. , Henneberry S. R.

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2022

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nr 3[65]

4

A comparison of methods for assessing pathogenicity of Fusarium oxysporum isolates on watermelon

88%

Swiader M. , Pronczuk M. , Niemirowicz-Szczytt K.

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nr 1-2

5

Metodika i rezul'taty issledovanijj razmerno – massovykh kharakteristik semennykh plodov bakhchevykh kul'tur (arbuz, dynja)

63%

Gorbenko E. , Gorbenko N. , Kim N.

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nr 2

6

Antioxidant, antibacterial properties and the light barrier assessment of raw and purified melanins isolated from Citrullus lanatus (watermelon) seeds

63%

Lopusiewicz L.

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nr 2

EN

The nutritive value and terapeuthic activity of watermelon seeds is known, but up to day no studies on isolation and characterisation of their melanin were conducted. The aim of the study was to evaluate the antioxidant, antibacterial and light barrier properties of raw and purified melanins isolated from watermelon seeds. Native melanin was isolated from seeds by alkaline extraction. Obtained pigment was purified by acid hydrolysis. Chemical tests and FT-IR analysis were conducted to determine the melanin nature of the isolated pigments. UV-Vis, transmittance and colour properties were evaluated spectrophotometrically. Antioxidant activity was determined using ABTS and antibacterial activity through a well diffusion method. The results of the study demonstrated that melanins isolated from watermelon seeds had antioxidant, light barrier and antibacterial properties. A purified form of melanin had higher antioxidant activity and light barrier properties than the raw form. Both melanins inhibited the growth of Enterococcus faecalis and Pseudomonas aeruginosa. Watermelon seeds may be considered as a promising source of natural melanin which possess remarkable therapeutic action that can support the traditional use of this plant in the ethnomedicine.

PL

Wartość odżywcza i terapeutyczna nasion arbuza jest znana, ale dotychczas brak jest badań na temat izolacji i charakterystyki ich melanin.Celem pracy było określenie właściwości antyoksydacyjnych, antybakteryjnych i barierowych względem światła natywnych i oczyszczonych melanin z nasion arbuza. Natywna melanina została wyizolowana z nasion w środowisku zasadowym. Otrzymany pigment został oczyszczony w wyniku hydrolizy kwasowej. Przeprowadzono testy chemiczne oraz analizę FT-IR aby określić charakter otrzymanych barwników. Widma UV-Vis, transmitancję oraz kolor oznaczono spektrofotometrycznie. Właściwości antyoksydacyjne określono za pomocą ABTS a właściwości przeciwbakteryjne metodą dyfuzyjną-studzienkową. Wyniki niniejszej pracy wskazują na to, że melaniny pozyskane z nasion arbuza charakteryzują się właściwościami antyoksydacyjnymi, barierowymi względem światła i przeciwbakteryjnymi. Oczyszczona melanina miała wyższe niż forma natywna właściwości przeciwutleniające i barierowe względem światła. Obie melaniny hamowały wzrost Enterococcus faecalis i Pseudomonas aeruginosa. Nasiona arbuza mogą stanowić obiecujące źródło naturalnej melaniny, która dzięki swoim właściwościom może stanowić uzupełnienie tradycyjnego zastosowania tej rośliny w etnomedycynie.

7

Comparison of watermelon yields under conditions of drip irrigation connected with nitrogen fertigation in vicinities of Bydgoszcz (Poland) and Cukurova (Turkey)

51%

Rolbiecki R. , Rolbiecki S. , Senyigit U.

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2011

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nr 12

EN

The paper is based on the chosen results of two one-year field experiments which were conducted in the vicinity of Bydgoszcz (Poland) and in the vicinity of Cukurova (Turkey). The aim of the study is to present the comparison of yields of chosen watermelon cultivars grown in the different climatic-soil conditions under drip irrigation with N fertigation. The experiment in Turkey was carried out under better soil conditions than in Poland - watermelon plants were cultivated on the clay loam and fine sand, respectively. ‘Crimson Sweet' and ‘Sugar Baby' cultivars were tested in the experiment in Poland, and two other cultivars (‘Madera-F1', ‘Paladin-F1') were examined in the experiment in Turkey. Nitrogen of 120 kg N was applied in two different nitrogen forms (G - granule nitrogen; L - liquid nitrogen). In the second treatment (L), the liquid N fertilizer was given with irrigation water (fertigation). All plots were drip irrigated. Higher irrigation water rate was supplied in Turkey (251.7 mm) than that in Poland (157.5 mm). Average yields of watermelon ranged from 32.62 to 37.87 t.ha-1, and from 29.09 to 30.35 t.ha-1, in the experiment in Poland and in the experiment in Turkey, respec-tively. Yields were dependent on cultivar and treatment (experimental variant). The yields of ‘Crimson Sweet' and ‘Madera-F1' cultivars in treatment with combined N application (granule and liquid N) were higher than these of treatment with granule N source. Fruit weight ranged in both the trials from 3.0 to 5.5 kg. ‘Sugar Baby' and ‘Madera-F1' cultivars were characterized by the highest fruit weight (5.5 kg and 5.2 kg, respectively) under combined N application. From results, it can be concluded that watermelon yield could be increased by application of liquid N fertilizer. Amongst the four cultivars, ‘Crimson Sweet' and ‘Madera-F1' gave higher yields under conditions of applications of granule together with liquid nitrogen form.

8

Content of selected components in fruits of Polish watermelon cultivar 'Bingo' as dependent on the method of seedling production and irrigation

51%

Wichrowska D. , Wojdyla T. , Rolbiecki S. , Rolbiecki R. , Piszczek P.

Polish Journal of Food and Nutrition Sciences

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2007

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tom 57

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nr 3[A]

EN

The results of the study on the content of selected chemical components of watermelon (total sugars, reducing sugars, vitamin C, carotenoids and beta-carotene) of Polish cultivar ‘Bingo’ are presented in the paper. Cultivation was conducted in two successive vegetative seasons (2005 and 2006) near Bydgoszcz, with the use of drip irrigation. During seedling production three different variants of irradiation were used: sunny light, artificial daylight and artificial blue light. The drip irrigation, used during the vegetative season, decreased the content of total sugars as well as that of carotenoids and beta-carotene in watermelon fruits, whereas the content of reducing sugars and vitamin C was higher than that in fruits obtained from control plots (without irrigation). Irradiation with artificial daylight during seedling production had a positive influence on the content of total carotenoids, beta-carotene and vitamin C in watermelon fruits. The content of sugars was differentiated in fruits of watermelon by irradiation of seedlings. Fruits of plants originated from seedlings irradiated with sunny light were characterised by the highest content of sugars.

PL

W pracy przedstawiono wyniki badań zawartości wybranych składników chemicznych kawona (cukrów ogółem, redukujących, witaminy C, karotenoidów i beta-karotenu) polskiej odmiany ‘Bingo’. Uprawa była prowadzona w dwóch kolejnych sezonach wegetacyjnych (2005 i 2006 roku) koło Bydgoszczy, z zastosowaniem nawadniania kroplowego. Podczas produkcji rozsady zastosowano naświetlanie siewek światłem słonecznym, dziennym sztucznym i niebieskim sztucznym. Nawadnianie kroplowe zastosowane w okresie wegetacji obniżało zawartość cukrów ogółem, a także sumy karotenoidów i beta-karotenu w owocach kawona, natomiast zawartość cukrów redukujących i witaminy C była wyższa niż w owocach kawona pochodzących z obiektów kontrolnych. Naświetlanie światłem białym sztucznym zastosowanym podczas produkcji rozsady miało dodatni wpływ na zawartość sumy karotenoidów i beta-karotenu oraz witaminy C w owocach kawona. Poziom badanych cukrów był różnicowany poprzez naświetlanie rozsad w owocach kawona, a największą ich zawartością charakteryzowały się owoce roślin pochodzące z siewek naświetlanych światłem słonecznym.