Combinaisons for get the better heterosis effect

Adaptation Projects Tomatoes
1

The conditions of the heterosis effect seem very surprising in the tomato,
What is the better combinaison for get the maximum heterosis effect and the better F1?

  1. Cross the two better plants of the garden?

  2. Cross the most weak plant with the better plant of garden?

  3. Cross the two mosts weaks plants of the garden?

  4. Cross a medium plant with the better plant of the garden?

  5. cross two medium vigorous plants

Someone has also getting hybrids 3 ways more performants than the hybrid 2 ways?

The most part of my hybrids 3 ways don’t seem more performants than my hybrids 2 ways.

Thank you for your experience

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