title: [Embryological investigation of super-dwarf wheat grown in laboratory experiment with elevated content of ethylene in atmosphere].
abstract: Data of the cytoembryological analysis of plants of super-dwarf wheat grown in laboratory experiment with elevated ethylene content in atmosphere were compared with results of space experiment and the ground control with ambient ethylene concentration. It was shown that crop barrenness in both the space and ground experiments was caused by exposure to increased ethylene throughout the whole ontogenesis which made pollen nonviable. The cytogenetic analysis revealed that male sterility of the wheat flowerlets in space flight evolved, as a rule, earlier and was deeper by character, i.e. pollen did not progress farther than the one-nucleus phase, whereas in the laboratory experiment with ethylene the pollen grains reached sometimes even the three-nucleus phase.
authors.forename: T D
authors.initials: TD
authors.lastname: Veselova
authors.forename: G M
authors.initials: GM
authors.lastname: Il'ina
authors.forename: M A
authors.initials: MA
authors.lastname: Levinskikh
authors.forename: V N
authors.initials: VN
authors.lastname: Sychev
mesh_terms: D001272:Atmosphere; D017753:Ecosystem; D005030:Ethylenes / Q000378:metabolism*; D013026:Space Flight; D014908:Triticum / Q000196:embryology* / Q000254:growth & development*
chemical_list: D005030:Ethylenes; C036216:ethylene