ADAPTABILIDADE E EST ABILIDADE DE GENÓTIPOS DE GIRASSOL NOS ESTADOS DO RIO GRANDE DO SUL E P ARANÁ Adaptability and stability of sunflower genotypes from the states of Rio Grande do Sul and Paraná
2009
RESUMONeste trabalho, objetivou-se estudar a adaptabilidade e estabilidade de genotipos de girassol nos Estados do Rio Grande do Sule Parana, quanto a rendimento de graos e de oleo. Os dados analisados foram obtidos da Rede de Ensaios de Avaliacao de Genotipos deGirassol, coordenada pela Embrapa Soja, entre 2003 e 2007. Os ensaios foram conduzidos em delineamento de blocos ao acaso, comquatro repeticoes. Os metodos usados foram os de Eberhart & Russel, Lin & Binns e Annicchiarico. Correlacoes proximas da unidade,em valores absolutos, foram obtidas entre a media geral dos genotipos e os parâmetros de adaptabilidade dos metodos de Lin & Binns eAnnicchiarico. Contudo, o metodo de Eberhart & Russel teve a vantagem de indicar genotipos com adaptacao a ambientes especificos.Nesse metodo, os hibridos Agrobel 959 e Helio 360 e a variedade BRSGira 02 foram considerados ideais, por apresentar bons desempenhosem rendimento de graos, adaptabilidade geral e boa previsibilidade. Para rendimento de oleo, essas caracteristicas foram encontradas noshibridos Agrobel 959 e EXP 1441 e nas variedades BRSGira 01, BRSGira 02 e BRSGira 03.Termos para indexacao: Helianthus annuus L., rendimento de graos, rendimento de oleo.ABSTRACTThe objective of this paper was to study the adaptability and stability of sunflower genotypes from the states of Rio Grandedo Sul and Parana, according to their grain and oil yield. The analyzed data were obtained from the Official Sunflower Trials Network,coordinated by Embrapa Soja, from the year 2003 to 2007. The experiment was carried out in randomized block design with fourreplicates. The Eberhart & Russel, Lin & Binns, and Annicchiarico methods were used. Correlations close to the unit in absolutevalues were obtained between the general average of genotypes and the adaptability parameters of Lin & Bins and Annicchiaricomethods. However, the method of Eberhart & Russel had the advantage of indicating genotypes with adaptation to specificenvironments. According to this method, the hybrids Agrobel 959 and Helio 360, and the variety BRSGira 02 were considered ideal,for showing good performance in yield grain, general adaptability and good previsibility. For oil yield, these characteristics werefound in the hybrids Agrobel 959 and EXP 1441 as well as in the varieties BRSGira 01, BRSGira 02, and BRSGira 03.Index terms: Helianthus annuus L., grain yield, oil yield.
Keywords:
- Correction
- Source
- Cite
- Save
- Machine Reading By IdeaReader
6
References
0
Citations
NaN
KQI