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1

Rooting and adaptation of androgenic carrot plants

100%
Gorecki R., Gorecka K., Krzyzanowska D., Kozik E., Nowak R., Adasik B.
Vegetable Crops Research Bulletin
|
2001
|
tom 54
|
nr 1
2
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Changes in the concentrations of phenolic acids in carrot plants inoculated with Alternaria radicina Meier, Drechsler and Eddy

86%
Cwalina-Ambroziak B., Amarowicz R., Glosek M., Janiak M.
Acta Scientiarum Polonorum. Hortorum Cultus
|
2014
|
tom 13
|
nr 3
Similary to other fungal species of the genus Alternaria, Alternaria radicina is a major pathogen that infects both the aboveground and underground parts of carrot plants. Changes in the concentrations of phenolic compounds are observed in infected carrot plants. Carrot seedlings were inoculated with the most pathogenic isolates of Alternaria radicina selected in a laboratory test. A phytopathological analysis was performed to determine the health status of carrot plants. The concentrations of phenolic acids in petioles were determined four weeks after inoculation with A. radicina and at harvest. The results of a greenhouse experiment revealed more severe disease symptoms on carrot plants cv. Koral inoculated with A. radicina isolates, compared with cv. Bolero. The content of the predominant phenolic acid (chlorogenic acid) was found to decrease in the leaf stalks of carrots cv. Koral inoculated with A. radicina. A statistically non-significant increase in chlorogenic acid levels was noted in the leaf stalks of carrots cv. Bolero in the experimental and control groups.
3

Physical weed control for ecological farming

86%
Lacko-Bartosova M., Rifai M. N.
Annals of Warsaw Agricultural University. Agriculture
|
1998
|
nr 32
4

Obtaining carrot [Daucus carota L.] plants in isolated microspore cultures

72%
Gorecka K., Kowalska U., Krzyzanowska D., Kiszczak W.
Journal of Applied Genetics
|
2010
|
tom 51
|
nr 2
141-147
Microspores were cultured on the modified B₅ liquid medium containing 2.4D (0.1 mg L⁻¹), NAA (0.1 mg L ⁻¹), L-glutamine (500 mg L⁻¹), L-serine (100 mg L⁻¹), and sucrose (100 g L⁻¹). The developmental stages of microspores and divisions were observed. Initially, the formation of binuclear and multicellular structures was noticed. Plants regenerated in the cultures in which the tetrad stage of microsporogenesis had predominated. Embryoids were still forming 24 weeks after the cultures were set up. Six weeks after the transfer of androgenetic embryos onto the B₅ regeneration medium, they were converted into complete plants. Out of 90 androgenetic plants planted in a growth chamber, 42 plants adapted to the new conditions. All of those plants proved to be diploids in cytometric analysis.
5

Cytological assessment of carrot plants obtained in anther culture

72%
Kowalska U., Rybaczek D., Krzyzanowska D., Kiszczak W., Gorecka K.
Acta Biologica Cracoviensia. Series Botanica
|
2008
|
tom 50
|
nr 2
7-11
Anthers of Feria F1 and Narbonne F1 carrot cultivars were cultured in vitro to induce androgenic embryos. To confirm the microspore origin of developed embryos, chromosome counts of root tip meristematic cells were made for each carrot plant obtained in anther culture. Using phase contrast technique and fluorescence microscopy, cytological changes of microspores during culture leading to proembryo formation were documented in the first days after anther placement on the induction medium. More than 90% of the carrot plants obtained in anther cultures had no haploid chromosomes.
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