versão impressa ISSN 0103-9016
AYUB, Ricardo Antonio et al. Giberellic acid, carbon-disulphide and 2-4 chloro-ethyl phosphonic and the dormancy and yield of potato tubers. Sci. agric. [online]. 1999, vol.56, n.4, suppl., pp. 1015-1018. ISSN 0103-9016. http://dx.doi.org/10.1590/S0103-90161999000500001.
In order to evaluate the efficiency of giberellic acid, carbon-disulphide, and 2-4 chloro-ethyl phosphonic acid (EthrellR) on dormancy breaking and yield of potato cv. 'Marijke', an essay was conducted at Piraí do Sul, PR, Brazil, during 1990/1991. The superiority of the EthrellR treatment over giberellic acid and carbon-disulphide, and its easy application, justify its use for dormancy breaking of potato tubers, for the studied genotype and location, at the rate of 842 mg.L-1, resulting in a potato yield of 23,395 kg/ha.
Palavras-chave : Solanum tuberosum; potato; growth regulator; plant physiology.