抄録
Male meiosis and pollen fertility have been studied in 31 angiospermic species belonging to 29 genera and eight families. During meiotic course, ten species are found to have anomalous meiotic course exhibiting the abnormalities in varying frequencies as Capillipedium assimile (chromatin stickiness, cytomixis), Phacelurus speciosus (chromatin stickiness, laggards, bridges, unoriented bivalents), Lolium remotum (cytomixis, laggards, bridges, micronuclei), Sisymbrium strictum (cytomixis, laggards, bridges), Ranunculus hyperboreus (cytomixis, laggards, bridges, micronuclei), Impatiens scabrida (laggards, bridges and abnormal microsporogenesis), Pennisetum alopecuroides (laggards and bridges), Phalaris minor (laggards, bridges, unoriented bivalents), Dactylis glomerata (late disjunction of bivalents). These abnormalities results in the reduction of pollen fertility of the plants.
