MULTIPLE COMPARISONS BETWEEN SOME FODDER BEET GENOTYPES BASED ON LEAF MORPHOLOGICAL CHARACTERS PUBLISHEDLuminita COJOCARIU, Al. MOISUC, D. V. LALESCU, M. HORABLAGA, F. MARIAN, C. BOSTAN
In animal feeding are used both the roots and the leaves of the fodder beets. Because the leaves have an important role in photosynthesis, the present work focused on the study of the leaf morphological characters of 16 fodder beet genotypes grown in Timisoara, during 2002-2010. The data used in the paper are collected along five years, because in the second year was obtained the seed. The fodder beet is characterized as a plant with indeterminate growth and it is strongly influenced by the agro-ecological conditions. The development of the leaf and root morphological characters of the fodder beets are strongly influenced by light intensity, temperature, precipitations and soil nutrient. (Luminita cojocariu and moisuc a., 2005; albayrak s. and necdet ç., 2007). As any fodder crops, the fodder beets have the same natural needs. The number of leaves has a large variability and it is very much influenced by genetic factors and also by environmental ones. To emphasize the degree of externalization of the leaf characters, its have been used 16 fodder beet genotypes of different origins, which have been seeded with own seed. The goals of this paper is to perform multiple comparisons between the Angoba, Monro, Brigadier, Gonda, Ketil, Tamara, Marshal, Kyros I, Fumona, Beta Rosa, Troya, Feldher, Polifuraj 2, Tamon, Zentaur and Ursus genotypes of fodder beets based on the leaf morphological characters (namely foliar surface, leaf weight and leaf number). We used the the Bonferroni’s test to determine the statistical differences between the above genotype. The mean, the minimum, the maximum, the lower quartile, the upper quartile, the variance, the standard deviation, the skewness and the kurtosis for the foliar surface, for the leaf weight and for the leaf number respectively of the above genotypes of fodder beets were pointed out. The pairwise comparisons between the studied genotypes using the Bonferroni’s test allow us to conclude that in general, there are statistically significant differences between the studied genotypes from the point of view of foliar surfaces, the leaf weights and leaf number, but we also found out the genotypes which are not statistically different.