[en] Thirty two jute (Corchorus olitorius and C. capsularis) varieties, including 25 released/notified and seven of common knowledge, were characterized through distinctness, uniformity and stability (DUS) testing trials for two consecutiveyears using 17 heritable morphological traits prescribed in the Revised Official DUS Test Guidelines of Jute to enableidentification of these varieties and for unambiguous ascertainment of distinctness. Out of 17 traits, 8 were found to be monomorphic, 7 dimorphic and only 2 polymorphic in C. capsularis, while 8 traits were dimorphic and 9 polymorphicamong C. olitorius varieties, indicating their potential for varietal characterization. On the basis of this study no singlecharacter could identify all the varieties individually; however, when used in combination, identity and distinctness of almost all the C. olitorius varieties and 10 varieties of C. capsularis (Padma, JRC-212, Bidhan Pat-2, D-154, KTC-1, KC-1, JRC-80, Bidhan Pat-3, JRC-7447 and JRC-698) could be established individually. The remaining varieties of C. capsularis could be classified into two groups: early flowering group (JRC-321, UPC-94) and fine fibre group (JRC-4444, Bidhan Pat-1). Hence, morphological characters alone may not suffice for DUS testing of C. capsularis varieties. All the varieties of both species released in India so far albeit professed their uniformity and stability through morphological characterization, but use of biochemical and/or molecular markers along with search for other morphological traits need to be explored for the delineation of C. capsularis varieties.

[es] Se caracterizaron durante dos a&ntilde;os consecutivos 32 variedades de yute (Corchorus olitorius y C. capsularis), 25difundidas o notificadas y siete de conocimiento com&uacute;n (testigo), mediante ensayos para la distinci&oacute;n, homogeneidady estabilidad (DHE), utilizando 17 caracteres morfol&oacute;gicos hereditarios descritos en la versi&oacute;n revisada de la Gu&iacute;aOficial del examen DHE de yute para identificar y distinguir inequ&iacute;vocamente estas variedades. De los 17 caracteres,8 resultaron ser monom&oacute;rficos, 7 dimorfos y 2 polim&oacute;rficos en C. capsularis, mientras que 8 fueron dim&oacute;rficos y 9polim&oacute;rficos en C. olitorius, lo que indica su potencial para la caracterizaci&oacute;n de variedades. Seg&uacute;n este estudio, unsolo car&aacute;cter no pudo identificar todas las variedades por separado, sin embargo, cuando se usan en combinaci&oacute;n, casitodas las variedades de C. olitorius y 10 variedades de C. capsularis (Padma, JRC-212, Bidhan Pat-2, D-154, KTC-1,KC-1, JRC-80, Bidhan Pat-3, JRC-7447 y JRC-698) pudieron distinguirse de forma individual. Las dem&aacute;s variedadesde C. capsularis pudieron clasificarse en dos grupos: de floraci&oacute;n temprana (JRC-321, UPC-94) y el de fibra fina (JRC-4444, Bidhan Pat-1). Por tanto, los caracteres morfol&oacute;gicos por s&iacute; solos pueden no ser suficientes para el examen DHE de variedades de C. capsularis. Aunque mediante caracterizaci&oacute;n morfol&oacute;gica todas las variedades de ambas especies difundidas en la India hasta el momento profesan una uniformidad y estabilidad, para la caracterizaci&oacute;n de variedades de C. capsularis deben explorarse el uso de marcadores bioqu&iacute;micos y/o moleculares, junto con la b&uacute;squeda de otras caracter&iacute;sticas morfol&oacute;gicas.