Table II. Number of aborted seeds in siliques from heterozygous cac1a-1 and wild-type sibling plants.

For each genotype, 10 siliques from each of 10 individual sibling plants were examined. Therefore, in total, 100 siliques of each genotype were examined. χ² test shows that the difference between the two proportions is statistically significant (P value < 0.001).

Genotype	Aborted	Normal	Total
cac1a-1/CAC1A	551 (18.5%)	2,429 (81.5%)	2,980
CAC1A/CAC1A	70 (2.1%)	3,245 (97.9%)	3,315