Published in Scientific Papers. Series B, Horticulture, Vol. LXIV, Issue 1
Written by Valentin PANCHEV, Valeria IVANOVA, Nikolay PANAYOTOV
The main goal of the present study was to establish the most appropriate gladiolus variety for growing under Bulgarian conditions. The experiment carried out in the Experimental fields of Agricultural University - Plovdiv with five gladiolus varieties: Purple flora, Priscilla, Plum tart, Oscar and Green star. The corms were planted in March. The phenological phases of sprouting, the appearance of the inflorescence stalk, beginning and end of flowering were observed. During the vegetation, the most important vegetative behaviours of the plant as high of plant, the diameter of the stem, number of leaves, length of inflorescence stalk and numbers of fully developed flowers and undeveloped flowers per plant were established. The coluor of the flowers was also registered. A Green star and Purple flora varieties have the strongest vegetative development, resulting in the formation of the highest plants, with the largest diameter and number of leaves. The highest decorative value of all tested genotypes, under the conditions of Bulgaria, indicated the Purple flora variety. Positive correlations are established between the height of the plant and the number of leaves and also for the length of inflorescences stalk and the number of developed flowers.
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