A recurrent selection programme for grain yield in winter barley

✍ Scribed by G. Delogu; C. Lorenzoni; A. Marocco; P. Martiniello; M. Odoardi; A. M. Stanca

• Publisher: Springer
• Year: 1988
• Tongue: English
• Weight: 357 KB
• Volume: 37
• Category: Article
• ISSN: 0014-2336
• DOI: 10.1007/bf00036846

✦ Synopsis

The effect of a recurrent selection procedure was evaluated in a winter barley (Hordeum vulgare L.) population . Cycle zero (C 0) was initiated by crossing six high yielding winter barley cultivars with the short straw cv 'Onice' . The F,'s were crossed according to a diallel scheme without reciprocals . A total of 750 S o plants were derived and evaluated ; 329 S o plants were selected and their progenies (S 1 lines) tested . Fifteen S, lines were chosen and used as parents of cycle 1(C,), by producing 105 F, hybrids which simulated a random mating offspring . One hundred and three randomly chosen S, lines belonging to Co, and 103 S, lines belonging to C,, were evaluated at two locations .

For grain yield a significant difference between cycles was observed . From C o to C, the grain yield increased with 307 g/m 2. This increase was due to a higher number of seeds per m 2. For plant height, heading date and 1000-kernel weight no differences between cycles were observed .

The positive results obtained in this study indicate the potential usefulness of recurrent selection for developing parents or lines superior for grain yield, with little change in other important agronomic traits .