Use of Descriptor Codes in Agro-Morphological Characterization: Qualitative assessment of 20 Land Races of Rice (Oryza sativa L.) from West Bengal
Rice is one of the very few crop species endowed with rich genetic diversity which is embodied in the traditional rice landraces or folk varieties. It is one of the most researched crops. Rice genetic resources and human welfare are intricately interlinked. Rice has shaped the history, culture, diet and economy of billions of people of Asia. The diversity data generated in time and space have been valuable to communities, scientists and policy managers to formulate and implement conservation strategies of in situ, on-farm as well as ex situ conservation and management of genetic resources. West Bengal has rich rice genetic wealth. But this genetic wealth is being silently depleted due to the onslaught of the high-yielding varieties (HYVs) and neglect. Descriptor codes were used for the qualitative evaluation of genetic diversity among the 20 rice genotypes collected from different parts of West Bengal, following the Standard Evaluation System (SES) for rice developed by the International Rice Research Institute (IRRI). There is an urgent need to document, characterize and conserve these varieties.
Chang T. T. (1984). Conservation of rice Genetic Resources: Luxury or Necessity? Science, 224, pp. 251-256.
De, Mitu and Dey, Santi Ranjan (2013). Screening folk rice varieties of West Bengal for relative tolerance to angoumois grain moth, Sitotroga cerealella (Olivier) (Lepidoptera: Gelechiidae) and identification of factors contributing to the tolerance. J. Environ. & Sociobiol. 10(2), pp. 201-212.
De, Mitu (2014a). Morphometric and Genetic Diversity of Folk Rice Varieties of West Bengal. J. Environ. & Sociobiol. 11(2) pp. 163-170.
De, Mitu (2014b). Dwindling Treasures of the Rice fields of West Bengal. The Beats of Natural Sciences. 1(4), pp. 1-9.
Deb, D. (2000). Folk varieties of West Bengal : Agronomic and Morphological Characteristics. Navdanya / Research Foundation for Science, Technology & Ecology. New Delhi.
Deb, D. (2005). Seeds of Tradition, Seeds of Future: Folk varieties of Eastern India. RFSTE, New Delhi.
Gao, L. (2003). The conservation of Chinese rice biodiversity: genetic erosion, ethnobotany and prospects. Genetic Resources and Crop Evolution, 50, pp.17–32.
Hien, N. L.; Sarhadi, W.A.; Hirata, Y.; Oikawa, Y. (2007). Genetic diversity of morphological responses and relationships among Asia aromatic rice (Oryza sativa L.) cultivars. Tropics 16, pp.343-355.
IRRI. (2002). Standard Evaluation System for Rice (SES). International Rice Research Institute, Los Baños, Philippines.
Li, R.; Jiang, T.B.; Xu, C.G.; Li, X.H.; Wang, X.K. (2000). Relationship between morphological and genetic differentiation in rice (Oryza sativa L.). Euphytica 114, pp. 1-8.
Lin, M.S. (1991). Genetic base of japonica rice varieties released in Taiwan. Euphytica 56, pp. 43-46.
Mahajan, R. K., Sapra R.L., Srivastava Umesh, Singh Mahendra and Sharma G.D. (2000). Minimal Descriptors (for characterization and evaluation) of agri- horticultural crops (Part I). National Bureau of Plant Genetic Resources, New Delhi, xi + 230 p.
Odjo, T.C., & Dossou-Aminon, Innocent & Dansi, Alexandre & bonou-gbo, Zaki & Kombaté K. (2017). Agro-Morphological Characterization and Assessment of Variability within a Germplasm of Benin Rice (Oryza sativa L.) Varieties. International Journal of Current Research in Biosciences and Plant Biology. 4, pp.1-16.
Pant, K. P. (2010) More profitable rice varieties crowd beneficial landraces out. The Journal of Agriculture and Environment.11, pp 1
This work is licensed under a Creative Commons Attribution-NonCommercial 4.0 International License.