THE EFFECTS OF TRICHODERMA SPECIES ON SOME PARAMETERS OF THE TULIP (TULIPA GESNERIANA CV. GOLDEN PARADE)

Abstract

Among the applications that affect some features, especially flowering, in ornamental plants; are the physical growing environment, nutrient or chemical applications, irrigation, light and temperature regimes and organic-inorganic fertilizer applications. With these applications the plant, flower quality and flowering period may change. In this study, effects of some Trichoderma species (Trichoderma virens KB31, T. gamsii VG47, T. harzianum LO52, T. asperellum ÖT1 and T. hamatum ÖT16), on some parameters (plant sprouting rate, flowering start time, number of leaves, leaf length, leaf width, plant height, petal length, flower width and stem thickness) of tulip plant (Tulipa gesneriana cv. “Golden Parade”) are investigated under field conditions. The study was carried out between the years of 2017-2018 in the Application Garden of the Faculty of Agriculture of Siirt University. At the end of the study, the differences between the average values obtained from all the parameters except for the number of leaves, were found to be statistically important (p<0.05). The earliest flowering start time is 80.56 days and the maximum leaf number is 4.01 in T. harzianum LO52 application; application of Trichoderma virens KB31 has the maximum flower width of 55.66 mm; the highest plant height is 272.21 mm, the length of the petal is 61.22 mm and the stem thickness is 7.13 mm are obtained in T. asperellum ÖT1 application; while the highest leaf length is 88.58 mm and the leaf width is 44.24 mm and they are detected in T. gamsii VG47 application. In parcels control and T. hamatum ÖT16 applications are conducted, the flowering rate of tulip plants are found to be lower than other applications.