ISSN 2617-8001 (Print), ISSN 2664-5297 (Online)
EFFECTS OF SOME ACTIVATOR AND FUNGICIDE APPLICATIONS ON POLLEN MORPHOLOGY AND ANATOMY IN CUCUMIS SATIVUS L.
Aylin E. Dereboylu, Ulash Ughuz

In this study, the effects of Forum Blu WP 40 (% 40 copper oxichloride and % 6 dimethomorph) and Anvil SC 50 (% 50 Hexaconazole) fungicides and Crop-Set activator on morphological and anatomical features of (Cucumis sativus L.) pollens were investigated. Preparations were applied on C. sativus seedlings grown in pots in greenhouses as in the concentrations of recommended dose (R.D.) (300g/100 l water, 40 cc /100 l water, 60 ml /100 l water), R.D.x2 (600g/100 l water, 80 cc/100 l water, 120 ml / 100 l water) and R.D.x3 (900g/100 l water, 120 cc /100 l water, 180 ml /100 l water). The lengths and the diameters of pollens in Equatorial View and Polar View, the thickness of exine-intine layers, lengths and diameters of the pores, length of the one side of the triangular polar area in Equatorial View and pollen shapes were measured with the micrometric ocular. When the control group and all the application groups were compared according to the data obtained, there was an increase in the lengths and the diameters of pollens in Equatorial View and Polar view, which was not consistent with the dose increase. The percentage of fertile pollens in all the application groups decreased as compared to control group, which was consistent with the dose increase. As compared to control group, exine layers increased while intine layers decreased. Pore lengths and diameters, and length of the one side of the triangular polar area values increased as compared to control group. It was observed that the applications caused more toxic effects as related with the increases in the dose. Moreover, the pollen shapes determined in the control group changed in all the groups except for the Anvil (40 ml/100 l water) and crop-set (180 ml/100 l water) groups.

Keywords: Cucumis sativus L., fungicide, morphology, plant activator, pollen
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