Resumen

MAQUEIRA, Lázaro A. et al. Duration of the phenological phases, its influence in yields of rice (Oryza sativa L.). cultrop [online]. 2018, vol.39, n.1, pp.68-73. ISSN 0258-5936.

ABSTRACT The research was conducted in areas of the Technological Scientific Base Unit ¨Los Palacios¨ (UCTB Los Palacios), Pinar del Rio, part of the National Institute of Agricultural Sciences of Cuba. Two short cycle cultivars (INCA LP -5 and Reform), and two half cycle cultivars (INCA LP-2 and J-104). Were used which were planted in four planting dates of the cold season, on a Gley Nodular Hydromorphic Ferruginous Petroferric soil. The objective was to determine the influence of the phenological phases duration in yield of rice cultivars (Oryza sativa L.) under the conditions of spring season. A randomized block experimental design was used with four replications. Based on the results of this study, it can be concluded that the duration of the reproductive phase in rice cultivars closely positive and direct relationship with of yield in the conditions of the spring season

Palabras clave : rice; phenology; Oryza sativa; yield.

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