Naslov
Farmers vs. Breeders selection: agronomic and molecular evaluation of a participatory maize breeding program response

Autori
Mendes Moreira, Pedro Manuel ; Santos, Joao P. P. ; Santos, Joao P. N. ; Almeida, Nuno Felipe ; Alves, Mara Lisa ; Šatović, Zlatko ; Pego, Silas ; Hallauer, Arnel R. ; Vaz Patto, Maria Carlota

Vrsta, podvrsta i kategorija rada
Sažeci sa skupova, sažetak, znanstveni

Izvornik
EUCARPIA XIV Meeting of the Biometrics in Plant Breeding Section - Book of Abstracts / Van Eeuwijk, Fred ; Shoen, Chris ; Hackett, Christine ; Romagosa, Ignacio ; Kristensen, Kristian ; Krajewski, Pawel - Dundee : The Scottish Crop Research Institute, 2009, 44-44

Skup
EUCARPIA XIV Meeting of the Biometrics in Plant Breeding Secton

Mjesto i datum
Dundee, Ujedinjeno Kraljevstvo, 02.09.2009. - 04.09.2009

Vrsta sudjelovanja
Poster

Vrsta recenzije
Međunarodna recenzija

Ključne riječi
farmer selection; maize; landrace; recurrent selection; microsatellites; yield

Sažetak
During more than 20 years, a Portuguese maize landrace ‘ Pigarro’ was breed under a participatory approach (VASO project) using farmer (mass selection) and breeder selection (recurrent selection by S2 lines). We analysed the selection response comparing the initial population (C0-84) with two mass selection cycles (C9-93, C20-04) and three recurrent representative selection cycles (C1(S2)-89, C2(S2)-94, C3(S2)-98). For the molecular level comparisons, 30 individuals from each cycle were screened with 16 different SSR markers. At agronomic level, multilocation trails were conducted in Portugal (2-3 locations in four years) and USA (4 locations in one year), evaluating morphological traits such as ear length and fasciation level, and yield. Comparative analysis of selection methods is in progress.

Izvorni jezik
Engleski

Znanstvena područja
Poljoprivreda (agronomija), Biotehnologija

POVEZANOST RADA