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Plant and Cell Physiology, 1986, Vol. 27, No. 3 553-557
© 1986

Short Communication

Dormancy in Garlic (Allium sativum L.) cv. Rosado Paraguayo II. The Onset of the Process during Plant Ontogeny

Juan A. Argüello1, Guillermina A. de Bottini2, Rebeca Luna1 and Rubén Bottini2

1Departmento de Biología Aplicada, Laboratorio de Fisiología-Vegetal, Facultad de Ciencias Agropecuarias, Universidad Nacional de Córdoba C. C. 509, 5000 Córdoba, Argentina
2Laboratorio de Fisiología Vegetal, Departamento de Ciencias Naturales, Facultad de Ciencias Exactas, Fisico-Quimicas y Naturales, Universidad Nacional de Río Cuarto 5800 Río Cuarto, Argentina

Dormancy in garlic cv. Rosado Paraguayo was studied during plant ontogeny in relation to endogenous growth regulators and bulb-forming. The differentiation of seed cloves began coincidently with a bulb-forming rate of 0.47 and a lack of gibberellin and moderate inhibitor activities. This hormone levels remained at harvest, when the seed cloves, which had completed their final size, were unable to sprout. Considering these and previous results, the lack of gibberellin like promoters could be the main factor which controls dormancy in garlic.

(Received May 7, 1985; Accepted November 26, 1985)
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