Variability of traits in the grown population of marshmallow (Althaea officinalis L.) | Variranje svojstava u gajenoj populaciji belog sleza (Althaea officinalis L.)
2010
Dražić, S., Institut za proučavanje lekovitog bilja Dr Josif Pančić, Beograd (Serbia) | Prodanović, S., Poljoprivredni fakultet, Beograd - Zemun (Serbia) | Glamočlija, Đ., Poljoprivredni fakultet, Beograd - Zemun (Serbia) | Živanović, T., Poljoprivredni fakultet, Beograd - Zemun (Serbia) | Krivokuća-Đokić, D., Institut za proučavanje lekovitog bilja Dr Josif Pančić, Beograd (Serbia)
Variability of traits in the grown population of marshmallow Vojvođanski was analysed in two locations in Serbia (Pančevo and Banatski Brestovac) during the two-year period (2008-2009). The following traits were studied: plant height (cm), number of side branches, leaf length (cm), fresh root yield per plant (g) and the number of swellings. The traits of the population were quantified over mean, standard deviation, coefficient of variations, asymmetry (beta1) and kurtosis (beta2) of the normal frequency distribution curve. Mean difference testing of traits was done by the application the t-test. Significant variations in traits were found, especially for the fresh root yield per plant (CV=43% and 52%) and the number of side branches (CV=50% and 72%). A very significant difference among trait means was determined for fresh root yield (g). The frequency distribution was symmetric (beta1 is approximately equal to 0) for the majority of traits except for the fresh root yield and the number of swellings. This points out to the fact that a higher number of plants (samples) had lower values for these traits than the population average (beta 1is greater than 0). The frequency distribution for all traits was more kurtosis (beta2 is less than 3), except for the fresh root yield (in the location of Banatski Brestovac) where it was more elongated (beta2 is greater than 3) than the normal distribution. A significant interdependence (rF=0.73) was established between the stalk height and the number of side branches. The correlation among remaining traits was weak and moderately strong (rF=0.21-0.64).
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