Resumen

PADILLA-RAMIREZ, José Saúl; GONZALEZ-GAONA, Ernesto; REYES-MURO, Luis  y  MAYEK-PEREZ, Netzahualcóyotl. Fruit production and productivity indexes of guava trees. Agric. Téc. Méx [online]. 2007, vol.33, n.2, pp.191-196. ISSN 0568-2517.

Guava (Psidium guajava L.) is one of the main fruit trees cultivated in Mexico, with a production area of 24 000 ha and annual production of 3 00 000 t. Fresh fruit production of 24 guava selections grown in Huanusco, Zacatecas, Mexico was recorded during 1999-2002, and then related to two productivity indexes: productivity index based on canopy volume and productivity index based on stem cross sectional area. This work was conducted in order to identify useful traits that can be used for the evaluation of productivity in landraces and breed guava germplasm in Mexico. All evaluated materials were identified and selected in the Calvillo-Cañones region. Fruit production ranged from 34 to 73 kg tree-¹, while the average number of fruits per tree was from 551 to 1514. Selections with greatest number of fruits were 11, 106, 126, 12, and 47. The most vigorous accessions were 118, 106, 115, 117, and 42. Positive associations between fruit production and productivity indexes were found.

Palabras llave : Psidium guajava L.; germplasm; productivity.

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