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Pesquisa Agropecuária Brasileira

Print version ISSN 0100-204XOn-line version ISSN 1678-3921

Abstract

RAIZER, Arnaldo José  and  VENCOVSKY, Roland. Phenotypic stability of new sugarcane varieties in São Paulo State. Pesq. agropec. bras. [online]. 1999, vol.34, n.12, pp.2241-2246. ISSN 0100-204X.  http://dx.doi.org/10.1590/S0100-204X1999001200010.

Five sugarcane (Saccharum officinarum L.) varieties recently released by the Copersucar Breeding Program were evaluated for yield, stability and environmental adaptability, using a methodology for phenotypic stability estimation. New varieties were compared with the check RB72454. Yield was highly related with environmental improvement. Varieties SP80-185, SP80-1816 and SP80-3280 were the most stable ones, showing high productivity on the best environments. SP83-5073, a variety with high sugar content and earliness, was also very stable, whereas, SP80-3480 showed higher scattering, but with high yield. Based on the parameters estimated the variety SP80-185 should be indicated as check for future trials, since it was the most adapted to poorer environments and the most responsive on better ones.

Keywords : Saccharum officinarum; plant breeding; clone; environmental adaptability.

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