ISHS Acta Horticulturae 637: XXVI International Horticultural Congress: Advances in Vegetable Breeding
BREEDING DISEASE-RESISTANT HAMI-MELON |
| Authors: | M.-Z. Wu, H.-P. Yi, W.-Q. Zhai, J.-X. Feng |
| Keywords: | Cucumis melo, backcross, combining ability, powdery mildew, downy mildew, gummy stem blight, root rot |
| Abstract:
Breeding lines C29-A7 and PMR Honeydew, and ‘Chilton’ were used as donor parents in crosses with ‘Kalakesel’ and ‘Greenqueen’ Hami-melons. Breeding lines 6-13, 6-4 and 6-1 resulted from single backcrosses to their respective Hami-melon parent followed by selection during inbreeding for resistance to powdery mildew, downy mildew, gummy stem blight and a root rot of unknown origin. Lines 6-13 and 6-4 have intermediate resistance to powdery mildew and downy mildew; line 6-1 has intermediate resistance to gummy stem blight. Line 1-21, selected from the cross of line 6-4 x ‘Blacksweet’ Hami-melon, is late maturing and is suited for open-field production; it is highly resistant to powdery mildew, has intermediate resistance to downy mildew, and is tolerant of the root rot. Line 1-45, selected from a cross of line 6-13 x ‘R. Hong-xincui’ Hami-melon, is for greenhouse production. | |
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