Table 2.

Berry set and average number of seeds/berry and of seeds/pollination from 5x × Tbr-4x and Tbr-4x × 5x crosses involving two pentaploid (2n = 5x = 60) BC₁ hybrids (P5 and P3) and three tetraploid (2n = 4x = 48) varieties (Blondie, Carmine, and Tollocan)

Cross combination*	Pollinations no.	Berries no.	Berry set %	Average no. of seeds per
				Pollination	Berry
5x × Tbr-4x	58	30	47.7	17.2	27.2
Tbr-4x × 5x	44	16	28.5	1.9	9.5
Tbr-4x × Tbr-4x†	56	27	48.2	53.8	111.6

For comparisons, results from Tbr-4x × Tbr-4x crosses performed in the same environmental conditions also are given. 

^*No significant differences were found between crosses within each cross combination, so results are pooled for cross combination. 

^†Composite of crosses involving varieties Blondie, Carmine, and Tollocan.