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Table 20 The pollen fertility of F1 hybrids between S. torvum and S. americanum and<br />

their respective parents.<br />

Species Accession No. Pollen fertility (%)<br />

Parents:<br />

S. torvum S00429 67.47<br />

S. americanum<br />

Hybrid:<br />

S00859 64.29<br />

S. americanum x S. torvum S00859 x S00429 59.34<br />

Table 21 The pollen fertility of F1 hybrids between S. americanum, S. villosum and S.<br />

nigrum and their respective parents.<br />

Species Accession No. Pollen fertility (%)<br />

Parents:<br />

S. americanum S00269 80.91<br />

S00859 64.29<br />

S00861 84.33<br />

S00865 71.38<br />

S. villosum S00854 78.76<br />

S00860 85.56<br />

TS02600 82.81<br />

S. nigrum TS02930 85.43<br />

Hybrids:<br />

S. americanum and S. americanum S00269 x S00861 9.84<br />

S00859 x S00861 14.30<br />

S00859 x S00865 36.71<br />

S00861 x S00269 21.89<br />

S00861 x S00865 34.77<br />

S00865 x S00861 19.78<br />

S. americanum and S. villosum S00859 x S00860 81.90

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