Agronomic Inheritance of Distant Hybrids of Non-heading and Leafy Chinese Cabbages

  Objective   Distant hybridization between non-heading and leafy Chinese cabbages was applied to breed improved yield, quality, and resistance to high temperature variety.

  Method   Three F₁ hybrids were bred by the distant crossing method between 3 non-heading Chinese cabbage cultivars and 3 leafy Chinese cabbage varieties. Genetic inheritability on the agronomic characteristics of the hybrids were analyzed.

  Result  Plant weight was shown to be the most stable agronomic property passed on in the hybridization. Whereas the easily distinguishable color of the leaves had the highest coefficient of variation among all indicators was the choice for hybrid screening. Significant heterosis of the hybrids over their parents or the average results was found on the height, width, and weight of a plant, the lengths of leaf and petiole, and the width of petiole.

  Conclusion   The distant hybridization between D2 and Q2 bred non-heading Chinese cabbages with desirable agronomic characteristics, and that between D3 and Q3 rendered high yield varieties.