quantitative variation in seven morphological characteristics ( leaf length and width , leaf length/ width ratio , flower , petal and stomata length , and number of chloroplasts in guard cells ) were studied in petunia hybrida plants regenerated from anther tissue culture and belonging to four different classes of ploidy ( 2n , 2n-3n , 3n-2n , 4n-8n ) .
C1521970
characteristics
C1444754
length