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1

Effect of planting density on the size and quality of shallot yield

100%
Jadczak D., Orlowski M.
Vegetable Crops Research Bulletin
|
2001
|
tom 54
|
nr 2
2
Artykuł dostępny w postaci pełnego tekstu - kliknij by otworzyć plik
Content available

The effect of cultivation method on selected traits related to the sowing value of shallot (Allium cepa L. var. ascalonicum Backer) seed

72%
Tendaj M., Krawiec M., Palonka S., Mysiak B.
Acta Scientiarum Polonorum. Hortorum Cultus
|
2014
|
tom 13
|
nr 5
In many countries, the traditional method of growing shallots from bulbs is replaced by direct seeding in the field or by planting seedlings. The availability of shallot seed with high parameters of the sowing value is an important condition for growing shallot in larger areas. It is possible thanks to the progress in breeding and introduction into cultivation of new cultivars that produce seed stalks and seed. Therefore, the aim of the present study was to evaluate the sowing value of seed of the true-breeding cultivar ‘Toto’, when this seed is obtained by planting steckling bulbs (bulb-to-seed method) and by using the seed-to-seed method. This study, conducted in the period 2010–2012, was to evaluate some important characteristics of the seed quality obtained by planting different diameter bulbs (20–60 mm, 4 fractions every 10 mm) in autumn and spring and from seedlings planted in summer (third 10-day period of July and first and third 10-day period August). The quality of shallot seed was evaluated taking into account the following parameters: 1000 seed weight (TSW), germination energy and capacity as well as vigour tests (seedling growth test and seedling growth rate test). Shallot cultivation method had a large effect on 1000 seed weight, but it only slightly affected germination capacity and vigour of seed obtained. Larger seeds were obtained from bulbs, regardless of their planting time, compared to the cultivation method involving planting seedlings in summer. The diameter of bulbs used for planting at autumn planting time proved to be an important factor for TSW, germination energy and the traits determining seed vigour. In the case of this planting time, seed obtained from large bulbs with a diameter of 40–60 mm was distinguished by the best quality. The study did not show such a correlation for seed derived from spring bulb planting.
3
Artykuł dostępny w postaci pełnego tekstu - kliknij by otworzyć plik
Content available

Content of phenolic acids in edible parts of some Alliums species grown for the green bunching

72%
Mysiak B., Tendaj M.
Acta Scientiarum Polonorum. Hortorum Cultus
|
2008
|
tom 07
|
nr 4
Studies carried out in 2003–2005 included determinations of free phenolic acids content in edible parts (shoots, pseudostem) of onion, shallot, and Welsh onion grown for green bunching in the field and forced in the greenhouse. Plants for phenolic acids contents analyses were achieved from setting the small bulbs (common onion, shallot) or annual plants from the seedling setting in the case of Welsh onion. In the field cultivation, plants were grown under short-term covers made of perforated PE film and non-woven PP, while forcing was realized in heated and unheated greenhouse. Free phenolic acids contents were determined after plant harvest, when plants reached the size useful for trading in bunches. Phenolic acids contents were determined in shoots and pseudostem by means of spectrometric Arnova method with recalculation onto caffeic acid. Performed study revealed that shoots contained significantly more free phenolic acids as compared to the pseudostem. Referring to the field cultivation, the component concentration in shoots was 0.23 mg·100 g⁻¹ FW, whereas due to forcing 0.135 mg·100 g⁻¹ FW, on average. Contents of phenolic acids at pseudostems of studied plants from the field cultivation were 0.05 mg·100 g⁻¹ FW, while at forced plants 0.04 mg·100 g⁻¹ FW. No significant differences related to the level of phenolic acids between common onion and shallot were found, both in shoots and pseudostem. However, shoots of Welsh onion contained significantly less phenolic acids, regardless the cultivation place and cover application. The accelerated field cultivation resulted in shoots of Welsh onion was 0.19 mg·100 g⁻¹ FW phenolic acids in FW, whereas the greenhouse forcing 0.11 mg·100 g⁻¹ FW. Regardless the species, forced plants contained considerably less phenolic acids (namely in shoots) as compared to plants grown in the field.
4
Artykuł dostępny w postaci pełnego tekstu - kliknij by otworzyć plik
Content available

The effect of summer seedling planting dates on the development of seed stalks in shallot (Allium cepa L. var. ascalonicum Backer)

72%
Tendaj M., Mysiak B.
Acta Scientiarum Polonorum. Hortorum Cultus
|
2013
|
tom 12
|
nr 6
Up-to-date production of shallots for commercial purposes was limited due to low supply of the seeding material as well as no breeding cultivars that would produce seeds. Local populations commonly grown in various countries are reproduced mainly in vegetative way, because they usually do not produce generative shoots nor seeds, or they are formed, but in a very reduced number. The aim of this study, conducted in the period 2009–2012, was to evaluate generative growth and seed production in shallot grown from seedlings planted in summer at different dates, without producing mother bulbs. The study included 4 shallot cultivars – ‘Toto’, ‘Ambition F1’, ‘Bonilla F1’, and ‘Matador F`1’. Seedlings (4 weeks old) were planted in the field on three dates – 3rd decade of July, 1st decade of August, and 3rd decade of August. In the second year of cultivation, after the plants had overwintered in the ground, losses in plants, the percentage of plants producing seed stalks and some traits of these stalks as well as seed yield in the true breeding cultivar ‘Toto’ were determined. Plants of the other cultivars were not allowed to produce seeds (inflorescence umbels were topped before flower opening), since these were hybrids and undesired cross-breeding could occur. The study showed that overwintering losses in plants were on average 26.3%, but they were the lowest in cv. ‘Toto’, in particular among plants obtained from the first date of planting seedlings. Irrespective of the cultivar, the largest amount of plants with developed seed stalks and with their highest number per plant were recorded in the treatments where the first planting date was used. A delay in planting seedlings in the first year of cultivation by 2–4 weeks had a significant effect on reducing the percentage of plants developing seed stalks in the second year, while in cv. ‘Toto” it resulted in a very high decrease in seed yield.
5

Changes of flavonols content during vegetation period and storage of shallot [Allium cepa var.aggregatum]

72%
Horbowicz M., Kotlinska T.
Vegetable Crops Research Bulletin
|
2001
|
tom 55
6

The effect of bulbs planting time and use of flat covers on growth and yield of shallot grown for the harvest with the fresh green shoots

72%
Gruszecki R., Tendaj M.
Vegetable Crops Research Bulletin
|
2002
|
tom 57
7

Effect of Central European and West Siberian cultivars on the growth and yield of shallots [Allium cepa L. var. ascalonicum Backer]

72%
Kaufmann F., Holke E., Grinberg E.
Roczniki Akademii Rolniczej w Poznaniu. Ogrodnictwo
|
2000
|
tom 31
|
nr 1
8
Artykuł dostępny w postaci pełnego tekstu - kliknij by otworzyć plik
Content available

Contents of certain chemical components in shallot bulbs after harvest and long-term storage

58%
Tendaj M., Mysiak B.
Acta Scientiarum Polonorum. Hortorum Cultus
|
2010
|
tom 09
|
nr 2
Shallot is one of the vegetables, which are especially abounding in flavonoids, phenolic acids and other compounds with antioxidative properties. Among Allium vegetables it is also distinguished with good storage ability. The studies conducted in the years 2007–2009 included the assessment of dry matter, flavonoids and phenolic acid contents in shallot bulbs immediately after harvest and drying off, as well as after long-term storage (5 months in the temperature 0–1°C and humidity of 86%). The studies concerned 3 cultivars of shallot: ‘Ambition F1’, ‘Bonilla F1’ and ‘Matador F1’. The bulbs of these cultivars were obtained from seedlings planting. For chemical analyses bulb samples with the diameter of 25–30 mm were selected, as such constituted the greatest participation in the obtained yield. The contents of total and reducing sugars, flavonoids (converted into quercetin), as well as phenolic acids (converted into coffeic acid) were determined in fleshy scales, whereas in dry scales only the contents of flavonoids and phenolic acids were determined. The dry matter of fleshy scales in the examined shallot cultivars was on average 16.65%. From among three examined cultivars the bulbs of ‘Bonilla F1’had significantly greater dry matter (18.03% on average). The contents of total sugars in shallot bulbs was on average 6.32% immediately after harvest and 5.71% after 5 months of storage. Similarly as in the case of dry matter, the bulbs of ‘Bonilla F1’ cultivar turned out to be the most abounding both in total and reducing sugars. The examined cultivars significantly differed in the contents of flavonoids and phenolic acids both in dry and fleshy scales. In all the cultivars the dry scales contained more than 50 times more flavonoids and more than 34 times more phenolic acids, as compared with fleshy scales. Long-term storage of shallot bulbs significantly affected the decrease of flavonoid contents, slight decrease of total sugars, but a significant increase of phenolic acids. From among the examined cultivars ‘Ambition F1’ was characterized with the lowest contents of all the analyzed components.
9

Zielony ogrodek na oknie ciekawa dekoracja i zrodlem witamin

58%
Szeliga A.
Biuletyn Informacyjno-Handlowy. Ośrodek Doradztwa Rolniczego Boguchwała
|
1997
|
nr 12
3
10

Current problems of onion production in South-Eastern Poland

58%
Tendaj M.
Nowości Warzywnicze
|
2004
|
tom 38
11

Ogrodnicze przypomnienia - swieze warzywa zima

51%
Szeliga A.
Biuletyn Informacyjno-Handlowy. Ośrodek Doradztwa Rolniczego Boguchwała
|
2002
|
nr 12
4
12

Zawartość flawonoidów i kwasów fenolowych w cebulach szalotki niektórych populacji i odmian

44%
Tendaj M., Matysiak B.
Zeszyty Problemowe Postępów Nauk Rolniczych
|
2008
|
tom 527
Badania przeprowadzone w latach 2004-2006 obejmowały analizę zawartości flawonoidów (w przeliczeniu na kwercetynę) i kwasów fenolowych (w przeliczeniu na kwas kawowy) w cebulach szalotki. Zawartość tych składników oceniono w łuskach suchych i mięsistych 10. miejscowych populacji i 2. odmian szalotki. Stwierdzono, że niezależnie od populacji lub odmiany, łuski suche zawierały ponad 60 razy więcej flawonoidów (średnio 0,19%). Podobną zależność stwierdzono w odniesieniu do zawartości kwasów fenolowych - łuski suche zawierały ponad 28 razy więcej tego składnika w porównaniu do zawartości w łuskach mięsistych. Spośród badanych populacji i odmian największą zawartością flawonoidów w łuskach suchych i mięsistych wyróżniały się populacje A-081, PV-73, Lubelska oraz odmiana Creation F₁. Poziom zawartości kwasów fenolowych w cebulach szalotki był istotnie zróżnicowany w obu latach badań, a szczególnie zasobne w ten składnik okazały się łuski suche populacji A-20, PV-73, PV-87 oraz odmiany Francuska Półdługa. U tych populacji i odmian, z wyj ątkiem PV-73, również łuski mięsiste zawierały najwięcej kwasów fenolowych. Uzyskane wyniki poziomu zawartości flawonoidów oraz kwasów fenolowych w łuskach suchych i mięsistych szalotki wskazują, że cebula ta jest cennym źródłem powyższych związków. Niektóre populacje charakteryzujące się wysoką ich zawartością mogą stanowić wyjściowy materiał do prac hodowlanych.
13

Ogrodnicze przypomnienia - warzywnictwo, kwiaty doniczkowe zima

44%
Szeliga A.
Biuletyn Informacyjno-Handlowy. Ośrodek Doradztwa Rolniczego Boguchwała
|
2003
|
nr 12
5-6
14

Wielkość i struktura plonu szalotki w zależności od metody uprawy i odmiany

44%
Francke A.
Zeszyty Problemowe Postępów Nauk Rolniczych
|
2009
|
tom 539
|
nr 1
Doświadczenie zostało przeprowadzone w latach 2005-2007 na polu Ogrodu Doświadczalnego Uniwersytetu Warmińsko-Mazurskiego w Olsztynie. Pierwszym czynnikiem doświadczenia była metoda uprawy. W pierwszym roku rośliny uprawiano - z siewu bezpośredniego nasion oraz z rozsady, a od drugiego roku także z cebul potomnych. Drugi czynnik doświadczenia stanowiły odmiany. Badaniami objęto dwie mieszańcowe odmiany szalotki - ‘Bonilla F1’ i ‘Matador F1’. W badaniach oceniano wpływ sposobu uprawy na wielkość i strukturę plonu dwóch heterozyjnych odmian szalotki. Na wielkość plonu handlowego cebul szalotki, masę pojedynczego gniazda, masę jednej cebuli oraz liczbę cebul w gnieździe istotny wpływ wywarły obydwa analizowane czynniki doświadczenia - sposób uprawy oraz właściwości odmian. Największy plon cebul jadalnych uzyskano uprawiając szalotkę z cebul potomnych (27.12 t∙ha-1) oraz u odmiany ‘Matador F1ʼ (22.88 t∙ha-1).
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