Rozwój warstw ściennych i otwieranie się pylnika u kilku dzikich gatunków ziemniaka (Solarium chacoense Bitt., S. phureja Juz. et Buk., 5. giberulosum Juz. et Buk., S. Commersonii Dun.) [The development of the parietal layers and dehiscence of the anthers at some wild potato species (Solanum chacoense Bitt., S. phureja Juz. et Buk., S. giberulosum Juz. et Buk., and S. Commersonii Dun.]

The anthers in these species like in whole genus Solanum are poricidal still some differences have been observed in structure of their anther walls. The fibrous cells associated with dehiscence restricted usually to the area around the pore may form a single layer or may form compact mass often irregular in thickness or it may be lacking at all. Besides the apical pore one can observe a lateral dehiscence. By desintegra-tion of cells a gap is forming in the wall separating the two anther chambers which causes breaking it down. Then stomium like cells in epidermis contribute to the lateral opening

Poszukiwanie samorzutnych mutantów woskowych wśród ziaren pyłku u kilku gatunków i linii 24-chromosomowych ziemniaków [The searching for the spontaneous waxy mutation in pollen grains of some diploid forms of wild potatoes]

Only in one of 12 investigated species i.e. in Solanum chacoense (gibberulosum) which became pollen staining red when treated with I+KI was been found. However in three forms: Solanum verrucosum, 133 Solanum chacoense (Schickii) and 127 Solanum chacoense (gibberulosum) the dimorphism of starch grains within the anther wall has been observed. It can be assumed that in these forms starch with a prevailing amount of amylopectin will be formed

Rozwój warstw ściennych i otwieranie się pylnika u kilku dzikich gatunków ziemniaka (Solarium chacoense Bitt., S. phureja Juz. et Buk., 5. giberulosum Juz. et Buk., S. Commersonii Dun.) [The development of the parietal layers and dehiscence of the anthers at some wild potato species (Solanum chacoense Bitt., S. phureja Juz. et Buk., S. giberulosum Juz. et Buk., and S. Commersonii Dun.]

The anthers in these species like in whole genus Solanum are poricidal still some differences have been observed in structure of their anther walls. The fibrous cells associated with dehiscence restricted usually to the area around the pore may form a single layer or may form compact mass often irregular in thickness or it may be lacking at all. Besides the apical pore one can observe a lateral dehiscence. By desintegra-tion of cells a gap is forming in the wall separating the two anther chambers which causes breaking it down. Then stomium like cells in epidermis contribute to the lateral opening

Poszukiwanie samorzutnych mutantów woskowych wśród ziaren pyłku u kilku gatunków i linii 24-chromosomowych ziemniaków [The searching for the spontaneous waxy mutation in pollen grains of some diploid forms of wild potatoes]

Only in one of 12 investigated species i.e. in Solanum chacoense (gibberulosum) which became pollen staining red when treated with I+KI was been found. However in three forms: Solanum verrucosum, 133 Solanum chacoense (Schickii) and 127 Solanum chacoense (gibberulosum) the dimorphism of starch grains within the anther wall has been observed. It can be assumed that in these forms starch with a prevailing amount of amylopectin will be formed