TABLE 4.

Assessment of the agronomic traits of BC progenies derived from S. bulbocastanum, GLKS 31741 (blb41) (+) cv. ‘Delikat’ hybrids grown in a field for 2 or 3 years, including flowering, tuber number, weight and starch content as well as processing qualities: Discolouration of raw tuber tissue, of cooked tuber flesh (average for 3 years); the BC clones with best yield, qualities for agronomic traits and processing are highlighted in green.

Initial number, 15–20 plants per genotype and plot; tuber harvest per plot. Flower intensity on a scale: (+), +, low number (n ≤ 5); ++, moderate number (n = 6–20), and +++, high number of flowers (n > 21); Tuber appearance (including tuber shape, eye depth, skin texture) is summarized on a scale: (+), +, poor, +++, very good; Discolouration: 1 (best) – 9 (low quality).