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Bragantia

versão impressa ISSN 0006-8705versão On-line ISSN 1678-4499

Resumo

CAMARGO, Carlos Eduardo de Oliveira et al. Triticale: evaluation on inbred lines in different regions of the state of São Paulo, Brazil. Bragantia [online]. 1989, vol.48, n.2, pp.143-156. ISSN 1678-4499.  http://dx.doi.org/10.1590/S0006-87051989000200002.

Twenty four triticale inbred lines and the wheat cultivar IAC-21 were evaluated in field experiments carried out at different locations of the State of São Paulo, Brazil, during the years of 1986 and 1987. Grain yield, plant height, number of days from emergence to flowering, percentage of layed plants, weight of 100 grains, resistance to leaf rust (Puccinia graminis sp. tritici) and to leaf spots (Helminthosporium sp. and Septoria sp.) were evaluated under field conditions. The triticale inbred line Nutria 7272 pre-sented the best grain yield (3,098 kg/ha), showing differences from the IAC-21 (2,241 kg/ha) and the other triticales, except for the inbred lines Merino"S" - JLO"S" (T-20 and 21), Nutria 440 and Juanillo 159 presenting 2,891, 2,870, 2,805 and 2,645 kg/ha respectively. The triticales were more resistant to leaf rust than the wheat IAC-21. The line Panche 7287 was moderately resistant to leaf spots and the other germplasms suscetible to this disease. The lines M2A-KLA"S" x MA (T-6), Faro"S" and Panche 7287 were significantly later in relation to IAC-21. The triticales M2A-CML 360 x M2A (T-2), Turk DWF-V 127 x 6TA 204/IA 146, M2A-CML x IA, TCEP 77138, BGL"S"-IGA x PND"S" and BCM"S" - Addax"S" were shorter than 'IAC-21'. The triticale Juanillo 159 had heavier grains than 'IAC-21' and the other triticale inbred lines except for the lines Nutria 7272 and Merino"S" - JLO"S" = T-21.

Palavras-chave : triticale; wheat; plant breeding; inbred lines; grain yield; leaf rust; leaf spots.

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