Resumen

MOREJON-RIVERA, Rogelio  y  DIAZ-SOLIS, Sandra H.. Relationship of yield with the other characters in rice traditional cultivars collected in Pinar del Río. cultrop [online]. 2018, vol.39, n.1, pp.81-86. ISSN 0258-5936.

Abstract The research was conducted with the objective of finding a relationship among the yield, their components and other characters and providing, to specialists in rice crop, useful information for breeding programs. Eleven traditional cultivars collected in Pinar del Río province were studied, as well as commercial cultivar INCA LP-5 that have very good acceptance among growers and they were evaluated seven morphoagronomics characters during the full season crop: cycle, full and vain grains per panicle, panicle length, panicle m^-2, 1000 grains weight and yield. The quantitave data matrix obtained (genotypes x variables) is processed by statistical multivariate techniques of Principal Components and Multiple Linear Regression, through Statgraphics Plus v.5. The analysis revealed the existence of differences among the cultivars, constituting an important genetic source to be used in the Rice Breeding Program. The equation proposed by the multiple linear regression analysis allows, through the estimated coefficients, expressing the prospective change of the dependent variable yield for each unit of change of the studied independent variables

Palabras clave : plant breeding; Oryza sativa L; multivariate technical.

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