ISSN:
1573-5060
Keywords:
Triticum aestivum
;
bread wheat
;
hybrid
;
heterosis
;
bread making quality
Source:
Springer Online Journal Archives 1860-2000
Topics:
Agriculture, Forestry, Horticulture, Fishery, Domestic Science, Nutrition
Notes:
Summary Ten experimental hybrids derived from the crossing of representative Italian pure-line varieties were grown at three locations in 1984–85. The amount of F1 seed produced from the crossings ranged from 1.5 up to 4 kg per plot of 20 m2. Hybrid purity was on average 88% when estimated through the growout test and 82% when estimated through acid polyacrylamide gel electrophoresis (A-PAGE) of gliadin. All the hybrids showed high-parent heterosis for plant height. Grain yield was higher in the hybrids (71.1 q/ha) than in the female parents (66.5 q/ha); the range of mid-parent heterosis being-10% to +17%. Four hybrids showed standard heterosis (yield advantage). The highest value (+6%) was obtained with the combinations Chiarano x Leopardo and Claudia x Leopardo. Among yield components, the number of spikelets/spike proved to be an important trait and may explain the superiority of the hybrids over the traditional varieties. The bread-making quality appeared intermediate to that of the parents or closer to that of the poorest parental variety.
Type of Medium:
Electronic Resource
URL:
http://dx.doi.org/10.1007/BF00039872
