Polianthes tuberose Breeding in Indonesia
Tuberose (Polianthus tuberosa) is an important ornamental plant in Indonesia that has been cultivated by farmers for a long time mainly in Java and North Sumatra provinces. However, the availability of new superior varieties is only a few so that the consumers only have a limited choice. Until now, there are three types of tuberose in Indonesia, which is distinguished by the type of flower namely single, semi-double and double flower. Some breeding efforts to obtain new varieties have been done through crossbreeding, mutation induction and selection to local cultivars. But the success on the crossbreeding of tuberose was only about 0.05%, as it can only be done in the direction of the single flower with double flowers. Because in the double flowers pistils are not found, the variability is very low. Nevertheless from these crossbreeding obtained 29 genotypes that showed differences in several characters, especially in the arrangements of flowers; and flower stalks straightness and rigidness. The other study indicates that each genotype has a different resistance levels against leaf spot disease (Xanthomonas sP.). Meanwhile, breeding of tuberose through mutation induction technique has not been widely studied. Application of gamma ray irradiation on tubers caused morphological damaged on Polyanthes, reduced bulb growth less than 30% and reduced the plant height more 400% than no treated plants (control). Polyploidy induced mutations by using colchicine led to changes in the length and diameter of the flowers and harvesting time. Until now, there is no result of the crossbreeding and mutation techniques that released as a new variety. Despite this, based on the positive selection breeding on local cultivars, there have been two superior genotypes released as new varieties namely Dian Arum (double flower type; origin of Cianjur, West Java) and Roro (semi double flower type; origin of Pasuruan, East Java).
Keywords: Polianthes tuberosa ; breeding; local cultivars, new varieties,Dian Arum, Roro Anteng
 Dwiatmini K, Sanjaya L and Nuryani W. 1996. Exploration, conservation and germplasm collection of tuberose. Research Report. Ornamental Plants Research Projects Section. Jakarta.
 Djatnika I. 1997. The production efficiency and farming systems of tuberose (Polianthes tuberosa L.). Tuberose Monograph. Indonesian Ornamental Plants Research Institute. Jakarta. 38p.
 Indonesia Statistics Center. 2015. Indonesian tuberose production in 2014.
 Sihombing, D., M.C. Mahfud dan W. Handayati. 2011. Growth performance, production and flower appearances of some tuberose genotypes that cultivated in medium altitude of Malang. Proceedings of the National Seminar on Food Self-Reliance. East Java Assesment Institute for Agriculture Technology. Malang 3
December 2011. p333–338
 Haryanto B, Badriyah DS and Sanjaya L. 1997. Breeding varieties of tuberose through hybridization and poliploidisasi. Research Report. Indonesian Ornamental Plants Research Institute. Jakarta (unpublised).5p
 Sihombing, D., R.T. Sarwana, W. Handayati dan S. Kartikaningrum. 2006. Daya hasil lanjutan klon-klon harapan sedap malam. Laporan Hasil Penelitian. Balai Penelitian Tanaman Hias. Segunung. 8p.
 Sihombing, D. and W. Handayati. 2011a. Genetic Variability and Phenotypic Appearance of Some Genotypes of Polianthes tuberosa Hybrid. Proceeding of The International Conference on Sustainable Agriculture and Food Security (ICSAFS). Padjadjaran University and Ministry of Agriculture of Republic Indonesia. Bandung
Indonesia on 27-28 September 2011. p468–475.
 Sihombing, D. and W. Handayati. 2011b. Morphology Character Performance of Some Promising Clones of Polianthus tuberosa. 2011. Proceeding of The International Conference on Sustainable Agriculture and Food Security (ICSAFS). Padjadjaran University and Ministry of Agriculture of Republic Indonesia. Bandung
Indonesia on September 27-28. p462–467
 Sihombing, D. and W. Handayati. 2012. Preliminary study of some genotypes tuberose resistance to mealybug (Dismycoccus brevipes). National Seminar of National Horticultural Technology Innovation. Indonesian Center for Horticultural Research and Development. Lembang, 5 July 2012. p206–211.
 Handayati W. 2012. Study of resistance genotypes of tuberose plants against leaf spot disease Xanthomonas sp. Proceedings of the National Conference on Green Technology 3. Sains and Tecnolofy Faculty. Islamic State University Malik Maulana Ibrahim Malang. p386–388.
 Mubarok, S., E. Suminar and Murgayanti. 2011. Study of the effectiveness of gamma rays to the character of tuberose the growth. Agrivigor. 11 (1), 25–33.
 Babas. 2014. Phenotypic appearance, variability and heritability of tuberose cv. double that irradiated with gamma ray on M1V2 generation; 2014. http://ba2sbreeder.blogspot.com. Download October 10, 2014.
 Zuhrah, A., N. Aini. And T. Wardiyati. 2010. The response of the plants morphology of tuberose (Polianthes tuberosa L. Var. Anteng Roro.) against colchicine. Buana Sains. Vol. 10 (2): 153–158.
 Rahayu, Y.S., I. K. Prasetyo and A. U. Riada. 2014. Pengaruh penggunaan kolkisin terhadap pertumbuhan vegetatif tanaman sedap malam (Polianthes tuberose L.) di dataran medium. Agromix Vol. 5 (1): 44–56.
 Prahardini, P.E.R. and Yuniarti. 2003. The introduction of varieties of Bangil tuberose (Roro Anteng Variety). Assembled in the Technical Guidelines for Agricultural Technology. East Java Assesment Institute for Agriculture Technology. p32–46.
 Sihombing, D. 2008. “Dian Arum” varietas baru sedap malam Balithi. Warta Plasma Nutfah Indonesia. No. 20: 1–3.
 Sihombing, D., S. Kartikaningrum dan W. Handayati. 2012. Characterization of new varieties of tuberose var. Dian Arum. Proceedings of the National Seminar on Food and Energy Sovereignty. Trunojoyo University. Bangkalan June 27: p701–709
 Prahardini, P.E.R., Yuniarti, Sarwono dan Baswarsiati. 2009. Inovasi Teknologi Sedap Malam Dataran Rendah. East Java Assesment Institute for Agriculture Technology. 14p.