Electronic Journal of Polish Agricultural Universities (EJPAU) founded by all Polish Agriculture Universities presents original papers and review articles relevant to all aspects of agricultural sciences. It is target for persons working both in science and industry,regulatory agencies or teaching in agricultural sector. Covered by IFIS Publishing (Food Science and Technology Abstracts), ELSEVIER Science - Food Science and Technology Program, CAS USA (Chemical Abstracts), CABI Publishing UK and ALPSP (Association of Learned and Professional Society Publisher - full membership). Presented in the Master List of Thomson ISI.

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Braun-Młodecka U. 2004. GENETIC IMPROVEMENT OF GLOBOSE AND SLIGHTLY FLATTENED CULTIVARS OF RED GARDEN BEET LISTED IN POLAND BETWEEN 1988 AND 1999, EJPAU 7/issue1/volume7(1), #01.
Available Online: http://www.ejpau.media.pl/volume7/issue1/volume7/issue1/horticulture/abs-01.html

ABSTRACT

The paper aimed at estimating the genetic improvement in yield and some quality traits of globose and slightly flattened cultivars of red garden beet listed in Poland during the years 1988-1999. The method of deviations from a check was used. The calculations were based on the results of cultivar testing conducted by the Research Centre for Cultivar Testing in Słupia Wielka. A significant genetic improvement of 0.55%/yr. was achieved in marketable yield. The genetic gain in betanin content amounted to 0.78%/yr. and vulgaxanthine to 1.33%/yr. However, the content of dry matter decreased at an annual rate of –0.77% and of sugar at the rate of -1.12%/yr. The content of nitrates negatively increased by 0.74%/yr. Depending on the trait analysed approximately 17% - 30% of the total improvement could be attributed to genetic factors.

Key words: red garden beet, genetic improvement, cultivar.

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