Bragantia (2003) 62, 19-27
Manoel Albino Coelho de Miranda, Nelson Raimundo Braga, André Luiz Lourenção, Fernando Toledo Santos de Miranda, Sandra Helena Unêda and Margarida Fumiko Ito (2003)
Descrição, produtividade e estabilidade da cultivar de soja IAC-23, resistente a insetos
[Description, yield and stability of early soybean insect resistant cultivar IAC-23]
Bragantia 62 (1), 19-27
Abstract: The breeding line IAC 93-345(IAC-23) was selected from the cross BR-6 XIAC 83-23 through single seed descent method (SSD) to increase insect resistance, and was evaluated at fourteen environments at São Paulo (SP) and Minas Gerais (MG) States: Conceição das Alagoas (MG), Mococa and Campinas (SP) (1994/95); in Conceição das Alagoas, Mococa, Campinas, Morro Agudo, Tarumã and Ribeirão Preto (1996/97); and Campinas (1998/99). Conclusive trials were conducted in randomized blocks with four replications. This cultivar shows long juveniIe period, flowering time at 43 days, and complete life cicle around 106 days after seed germination, with plant height about 67 cm. The average yield was 3017 kg.ha-1. Plants show brown pubescence, yellow seeds with brown hilum. The new cultivar is resistant to: bacterial pustule (Xanthomonas campestris pv. glycines), wildfire (Pseudomonas syringae pv. tabaci), stem canker (Phomopsis phaseoli f.sp. meridionalis) and soybean mosaic virus (SMV). IAC-23 productivity, large stability and resistance levels to leaf and pod feeders insects is similar to that observed for IAC-17, and superior to that of IAS-5. The cultivar IAC-23 is then recommended for cultivation in the State of São Paulo and in similar environmental conditions.
(The abstract is excluded from the Creative Commons licence and has been copied with permission by the publisher.)
(original language: Portuguese)
Full text of article
Database assignments for author(s): André Luiz Lourencao
Research topic(s) for pests/diseases/weeds:
resistance/tolerance/defence of host
