Study of the reproductive characteristics of carnation hybrids (Dianthus caryophyllus)

Estudio de las características reproductivas de híbridos de clavel (Dianthus caryophyllus)

Carnation is the most important flower in the exportation and the principal destination are United States of America and Europe and the country is the first producer of carnation in the word. The vascular diseases are the most important cause of losses in the crop and the most efficient method of control is to count to resistant varieties. The recognitions of the reproductive characteristics of the carnation hybrids, object of this work, permitted in a prudent period establish a program of varieties production in Colombia. In this work we used hybrids of three successive generations obtained by autopollination studding the reproductive characteristics. As much as pollen and ovules in the flowers, as well as in the male and female reproductive organs we find a high variability in the number of structures, were the reproductive variability is not bound to the endogamous generation. The pollen quantity is not directly bound with the number of seeds produced, as well as with the number of ovules in the gynoecium. Conversely, the seeds number is related directly with the number of viable ovules by flower. The hybrid fertility expressed in terms of number of pollen grains vs fertilized ovules and produced seeds by flower show that exist a plenty variability in the reproductive conditions in the hybrids, but enough to permit a successful production of seeds.   

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