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1
Content available Phylogeographic investigation of Hordeum murinum L. in Europe based on DNA markers
100%
Bieniek W.
Acta Biologica Cracoviensia. Series Botanica
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2018
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tom 60
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nr 1
2
Content available Achievements in horizontal gene transfer studies in parasitic plants
100%
Goralski G. , Denysenko-Bennett M. , Burda A. , Staszecka-Moskal N. , Kwolek D.
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2021
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tom 63
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nr 2
3
Content available Overexpression of stress-related genes in Cuscuta campestris in response to host defense reactions
86%
Rezaei H. , Alamisaeed K. , Moslemkhani C.
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nr 2
4
Seed productivity in relation to other shoot features for endangered parasitic plant Orobanche picridis F.W. Schultz (Orobanchaceae)
72%
Piwowarczyk R.
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nr 1
EN
Parasitic plants species of the genus Orobanche produce a very high number of small dust-like seeds. The seed shape of Orobanche sp. is ellipsoid to globose, ca. 0.3 × 0.4 mm. Orobanche picridis F.W. Schultz is a sub-Mediterranean-sub-Atlantic species. It has the NE range limit in Poland and Ukraine. The species is seriously endangered in Poland and neighbouring countries. O. picridis occurs only in southern Poland (34 localities). It prefers habitats on chalky rendzina, especially S-facing. It colonizes abandoned fallows and wastelands, field margins, initial xerothermic grasslands. They are mostly ecotone communities, in semi-ruderal xerothermic pioneer communities belonging to the Dauco-Picridetum (Artemisietea vulgaris class). The aim of this study was to determine potential and real seed productivity in Orobanche picridis and correlations between the characteristics of the shoots. Research hypothesis is to show that the studied traits of shoots show the highest correlation with the production of seeds. The paper presents investigations into potential and real seed productivity of Orobanche picridis for the first time. Investigations were conducted in 2010 at three most abundant localities of O. picridis in southern Poland in the Wyżyna Małopolska upland (S Poland) - Wesołówka (Przedgórze Iłżeckie foreland), Pińczów, and Pęczelice (Niecka Nidziańska basin). Research into the number of seeds produced per fruit and per shoot is discussed. Strict correlations between seed productivity and shoot features, i.e. shoot height, inflorescence length, number of fruits and corolla tube length were observed. The number of seeds in a single ovary in O. picridis varied and ranged from 457 to 3 246. The mean number of seeds per shoot is 55 172 based on the data collected at the three sites and ranges between 8 911 and 151 050. Seed productivity depends significantly on the size of a plant, that is on the shoot height, correlation coefficient r = 0.7, inflorescence length, r = 0.6, number of flowers and fruits per plant, r = 0.6, and on the flower size, r = 0.5.
5
Content available Effects of wheat-canola intercropping on Phelipanche aegyptiaca parasitism
72%
Razavifar Z. , Karimmojeni H. , Sini F. G.
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tom 57
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nr 3
EN
Parasitic weeds especially Phelipanche aegyptiaca decrease severely the production of canola. This study evaluated the effect of intercropping different wheat genotypes with canola on Phelipanche aegyptiaca growth. Ten wild wheat genotypes with different ploidy levels including TRI11712, TRI19322, TRI18664, TRI19652, TRI565, TRI15593, TRI12911, TRI11554, TRI17606, TRI7259P and seven cultivated bread wheats, namely: Falat, Chamran, Alamut, Baiat, Kavir, Sepahan, Alvand in addition to a canola cultivar called Zarfam were studied. The results revealed that intercropping of canola with wheat could significantly reduce broomrape growth depending on the type of wheat genotype. A significant genetic variation of allelopathic activity in wheat was observed, indicating the contribution of multiple genes conferring the allelopathic trait. TRI565 and TRI12911, TRI15593, TRI18664, TRI19652, TRI17606, TRI19322, and TRI7259 genotypes showed strong inhibitory effects and can be considered as potential allelopathic genotypes to suppress broomrape. The inhibitory potential of wild wheat genotypes was stronger than cultivated wheat genotypes. Alamut, Baiat, Alvand, Sepahan, and TRI11712 possessed strong stimulatory effects on broomrape germination. Such genotypes may be valuable as trap crops for depleting the Egyptian broomrape seed bank.
6
Resistance to herbicide [2,4-D] of Striga hermonthica [Scrophulariaceae] in relation to embryonic development
72%
Pare J.
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1994
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tom 08
7
Content available The occurrence of European mistletoe under the conditions of high human impact in the central part of Warsaw, Poland
58%
Zachwatowicz M. , Petrovic K. , Sudnik-Wojcikowska B.
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2008
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tom 22
8
Orobanche pallidiflora Wimm. et Grabb - specimens variability and plant communities - a case study of the abandoned meadow
58%
Bacieczko W. , Borcz A. , Kaszycka E.
Polish Journal of Natural Sciences
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2017
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tom 32
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nr 4
EN
This paper presents the results of a research on the variability of Orobanche pallidiflora Wimm. et Grab. specimens which grew in an abandoned meadow in Lubiatowo (Pyrzyce County, West Pomeranian Voivodeship). Their spatial distribution was investigated and some biometric measurements were taken (shoot height, stem height, stem basal width, number of leaves, length of inflorescence, and number of flowers). Also participation of the species in plant communities was examined. 75 individuals of Orobanche pallidiflora were recorded in the sampling plot of 100 m². Their distribution was clustered. The majority of the biometric measures had low coefficient of variation values, except for the number of flowers (V = 59.63%). The specimens grew in species-poor Molinietalia communities of the Molinio-Arrhenatheretea class, where Cirsium oleraceum and Cirsium arvense were the dominant species.
PL
W artykule przedstawiono wyniki badań nad zmiennością osobników Orobanche pallidiflora Wimm. et Grab. występujących na nieużytkowanej łące w Lubiatowie (powiat pyrzycki, województwo zachodniopomorskie).Wpracy badano ich rozmieszczenie przestrzenne, wybrane cechy biometryczne (wysokość pędu, długość łodygi, szerokość łodygi, liczbę łuskowatych liści, długość kwiatostanu i liczbę kwiatów) oraz udział gatunku w zbiorowiskach roślinnych. Na poletku badawczym o powierzchni 100 m² odnotowano 75 osobników Orobanche pallidiflora Wimm. et Grab. rozmieszczonych skupiskowo. Większość badanych cech biometrycznych osiągała niskie wartości współczynnika zmienności V – jedynie w przypadku liczby kwiatów wynosił on 59,63%. Osobniki badanego gatunku występowały w zbiorowiskach z rzędu Molinietalia, z klasy Molinio-Arrhenatheretea, o ubogim składzie florystycznym z przewagą Cirsium oleraceum i Cirsium arvense.
9
Extent of infection by Viscum album L. and changes in its occurrence on ornamental woody species in the locality of Lednice (Czech Republic)
51%
Bulír P.
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2017
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tom 29
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nr 2
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