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Idesia (Arica)

versión On-line ISSN 0718-3429

Resumen

LOPES, José Carlos; QUALHANO TRIGO, Maria de Fátima Idalina; SOARES DE SOUZA LIMA, Julião  y  SILVA, Samuel de Assis. Spatial distribution of physiological quality of Arábica coffee seeds to cultivate Catuai. Idesia [online]. 2014, vol.32, n.2, pp.65-74. ISSN 0718-3429.  http://dx.doi.org/10.4067/S0718-34292014000200009.

Brazil stands as the largest coffee producer in the world. However one of the factors capable of undermining the potential of this species is the poor quality of seeds. One tool that is being proposed for use in agriculture is the Geostatistics analysis to verify the existence and quantify the degree of spatial dependence of variables. The seeds were collected in a field with five years of age in an area of 0.8 ha, 50 sampling points. In the laboratory we used a completely randomized design (CRD) with four replicates of 25 seeds per point materialized with the aid of a total station. After removal of the scrolls, the seeds were treated with Captan (Orth Cide) to 0.1% for five minutes and subjected to the following determinations: moisture, germination first count of germination, root length and shoot length. Then the seeds were placed to develop in an incubator at temperature 20-30 °C for 60 days. In the results there was spatial dependence of the quality variables of physiological Catuaí. The lowest range for the variable length of shoot (CPA) and greater range for the variable fresh weight (MFPA).

Palabras clave : precision coffee; germination; geostatistical; vigor.

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