Variability in the quality of pollen grains in oat amphiploids and their parental species

Abstract The pollen analysis has become an important technique to evaluate the use of selectively breeding crops, including three most grasses human nutrition. This study aimed reproductive potential oat species and their hybrid progeny (amphiploids) during consecutive vegetation seasons. Correlation regression analyses were used describe morphotypes viability grains, while numerical taxonomy methods applied analyse relationships between taxa. results indicated a difference in size grains growing seasons, but stable association showed no correlation with length. In ordination space, amphiploids parental well discriminated. Amphiploids characterised by positive level ploidy; however, along respective line, located among high ploidy. Developmental anomalies more frequent amphiploids, few being chromosomally imbalanced, formation micrograins was common event. Multiporate pollens multiple-spindle mother cells origin can be equivalents four monoporate microspores. A strong observed frequencies multiporate micropollens. types (species) discriminated from (amphiploids). High proved genomic/chromosomal stabilisation across many generations reproduction.