Resumo

JEREZ MOMPIE, Eduardo; MARTIN MARTIN, Roberqui  e  MORALES GUEVARA, Donaldo. Accumulation and distribution of dry mass behaviour in three varieties of potato (Solanum tuberosum L.). cultrop [online]. 2015, vol.36, n.4, pp. 70-76. ISSN 1819-4087.

The work was developed in the experimental areas of the National Institute of Agricultural Sciences during plantations carried out in the month of January of the years 2010, 2011 and 2012, with the aim to evaluate the distribution and accumulation of dry mass behaviour among different organs of the plant. Tubers seeds of three potato varieties (Solanum tuberosum L.) Call White, Santana and Spunta, planted in three parcel(one for each variety) following a design sample. At 40 and 70 days after the plantation and in the crop, were carried out samplings of 10 plants at random for each variety, to know by means of drying in stove the quantity of dry mass in the different organs. During the cycle of the cultivation were registered the stockings, maximum and minimum temperatures present in that period. Differences between varieties were detected in the magnitude of the values reached in the accumulation of dry mass, even when the three follow the same patron of growth. Could be notice that at beginning of the plantation the demand for dry mass is much bigger in the foliage, it is invested toward the tubers at the end of the same one. The influence of the temperatures in the growth was discussed; it has a big influence in the dry mass production

Palavras-chave : varieties; growth; assimilates source; assimilates demand; temperature.

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