The present study examined a comparison of the pollen micromorphology of four taxa of Anemone coronaria L. (A. coronaria var. coccinea (Jord.)) Burn, A. coronaria var. rosea (Hanry) Batt, A. coronaria var. cyanea, A. coronaria var. alba Goaty & Pens) naturally distributed in western Turkey and its commercial cultivars of de Cean group. Measurements of pore width-length and exine-intine layer thicknesses were made using a micrometric ocular. In this study pore width-length and exine-intine layer thicknesses were found as decreased in all Anemone coronaria L. cultivars of de Cean group in respect to the varieties. The reasons for this variation could be the use of pesticides and tetraploid F 1 hybrids of Anemone coronaria L. cultivars of de Caen group by the producers.

This study aimed to determine the influence of auto-exhaust pollution on trichome structure of Olea europea L. leaves. For this purpose, olive leaves were collected from two areas one of which is urban and the other is rural. Leaf surface sections in leaves were obtained to examine the influence of auto-exhaust pollution on trichome structure of olive. Width-length thicknesses in peltate trichome were measured using a micrometric ocular. To investigate the density and the percentages of damagednondamaged peltate trichomes among the groups, the upper epidermis of leaves was photographed with SEM. According to the results, the values of width and length thicknesses of peltate trichome were lower in urban area when compared to rural site.The density and percentages of nondamaged peltate structure were lower in urban area whereas damaged peltate structures were increased. Auto-exhaust pollution decreased the amount of nondamaged peltate trichome structure and caused damaged peltate structures in olive leaves. The plant can be more sensitive to drought because of decreased amount of peltate trichomes and also increased damaged peltate trichome structures in urban area. K E Y W O R D Sauto-exhaust pollution, leaf, olive, peltate trichome

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Effects of Agri Fos 400 (Mono and di-potassium phosphanate), a fungicide widely used on tomatoes grown in greenhouses in Turkey against Phytophthora infestans were studied on the morphology and viability of tomato (Lycopersicon esculentum Mill.) pollens. The fungicide was applied on tomato plants at recommended dosage (4 ml/l water) and double the recommended dosage (8 ml/l water). The fungicide caused changes in the morphological structures of pollens. Some pollen morphological structures that are not observed in the control group were encountered in the pollens due to application of Agri Fos 400 in equatorial view at 8 ml/l and in polar view at 4 ml/l. Level of pollen viability decreased as the dosage increased.

The effects of Equation Pro (22.5 % Famoxadone + 30% Cymoxanil) fungicide applied to tomato grown in greenhouse at recommended dosage (40 g/100 l tap water) by manufacturing company and double the recommended dosage (80 g/100 l tap water) were investigated on pollen meiosis. It was observed that the fungicide used in trial applications caused anomalies in pollen meiosis in parallel with the increase in dosage. It is obvious that this condition will have a negative effect on pollen fertility.