Background: Cassava is an industrial tropical tuber crop and it is used for human and animal consumption: but also used as a raw material for various agro-based industries. Cassava is commercially propagated by using stem cuttings. These stem cuttings are often infected with viral and bacterial diseases which affect yield adversely. With this background, the present experiment was taken up to identify an elite virus free planting material with improved yield and qualitative characters in two promising cultivars of tapioca viz., H 226 and CO 2 using tissue cultured plants and different types of setts from field grown plants as planting materials.
Methods: An experiment was carried out to assess the effect of planting materials on the growth, yield and quality of Cassava varieties viz., H 226 and CO 2. The experiment was laid out in a Factorial Randomized Block Design with four treatments in two varieties and three replications. Observations were recorded on various growth, yield and quality attributes of the crop.
Results: Significant results on plant height, stem girth, number of branches and number of leaves are recorded with tissue cultured plants. There is no significant difference among the treatments for starch, HCN and protein contents. There is a significant difference in starch content among the varieties. The variety CO 2 possessed more starch content than H 226.
Conclusion: Among the four treatments (different kinds of planting materials) followed in this study, the treatment T1 Tissue cultured plants recorded lesser incidence of cassava mosaic virus, more number of fibrous roots, highest values for plant height, stem girth and tuber yield. Among the varieties, CO 2 showed the least incidence of cassava mosaic virus. The CO 2 tissue culture plants could give better yield in the field conditions.
cassava, tissue culture, mosaic disease, yield
Beck, B. D. (1960). Cassava trials on Moor plantation. Proceedings of third International Symposium on Tropical Crops, Ibadan.
Cock, J. H., Franklin, D., Sandoval, G. & Juri, P. (1979). The ideal cassava plant for maximum yield. Crop Science., 1, 271 - 279.
Estevao, E. De. M., Begazo, J. C. E. O., Brandao, S. S. & Oliveira, L. M. De. (1972). Production of roots and shoots of cassava varieties and the relationship between characteristics of the above ground parts and not production. Revista Ceres, 19(105), 311 - 327.
Faria, R. T & Illg, R. D. (1995). Micropropagation of Zingiber spectabile Griff. Scientia Horticulturae, 62, 135 - 137.
Geddes, R., Greenwood, C. R. & Mackenzie, S. (1965). The biosynthesis of starch granules. III. The properties of the components of starches from the growing potato tuber. Carbohydrate Research, 1(1), 71 - 82.
Geetha, R., Sankari, A., Pugalendhi, L., Vennila, P., Swarnapriya, R. & Thangamani, C. (2021). Studies on functional properties of cassava var. Yethapur Tapioca-2 for its suitability as an ideal industrial substitute for the grain starches. Pharma Innovation, 10(5), 9 - 12.
Hernández - Carmona, F., Morales-Matos, Y., Lambis - Miranda, H., Pasqualino, J. (2017). Starch extraction potential from plantain peel waste. Journal of Environmental Chemical Engineering, 5(5), 4980 - 4985.
Indira, P. & Sinha, S. K. (1969). Colorimetric method for determination of HCN in tubers and leaves of Cassava. Indian Journal of Agricultural Science, 39, 1021-1023.
Krochmal, A. (1969). Propagation of cassava. World Crops, 21(3), 193 - 195.
Loria, M. W. (1962). Influence of size and positioning of cassava cuttings on rooting, yield and foliage production. Proceedings of Caribbean Region, American Society of Horticultural Science, 6, 20 - 23.
Lowe, S. B. & Wilson, L. A. (1975). Yield and yield components of six sweet potato (Ipomoea batatas) cultivars. Contribution of yield components to tuber yield. Experimental Agriculture, 11 (1), 39 - 48.
Lowry, C. H., Rose brough, N. J. Farr, L. A. & Randall, R .J. (1951). Protein measurement with folin phenol reagent. Journal of Biological Chemistry, 193, 265 - 273.
Magoon, M. L., Krishnan, R. & Lakshmi, K. (1972). Association of plant and tuber characters with yield of cassava. Tropical root and tuber crops Newsletter, 5, 29 - 30.
Manivasagam, S., Rabindran, R., Balasubramanian, P. & Natarajan, S. (2006). Studies on Cassava mosaic disease with special reference to detection and virus variability. Proceedings of 14th Triennial symposium of Indian Society for Tuber and Root Crops, CTCRI, Thiruvananthapuram, Kerala.
Mohankumar, C. R. & Mandal, R. C. (1971). Studies on sett size and depth of planting of tapioca (H 165). Annual Report, Central Tuber Crops Research Institute. Thiruvananthapuram, Kerala.
Moh, C. C. & Alan, J. J. (1972). The use of the Guignard test for screening cassava cultivars of low HCN content. Tropical Root and Tuber crops Newsletter, 6, 29 - 31.
Muthukrishnan, C. R., Thamburaj, S., Shanmugam, A. & Subramaniyan, A. S. (1973). Relationship of certain yield components in tapioca (Manihot esculenta Crantz). Madras Agricultural Journal, 60, 9 - 12.
Muthuswamy, P., Krishnamoorthy, K. K., Muthukrishnan, C. R., Thamburaj, S. & Shanmugam, A. (1974). HCN content of cassava peel as affected by fertilizer application. Current Science, 43(10), 312.
Panse, V. G. & Sukhatme, P. V. (1967). Statistical Methods for Agricultural Workers, Second Edition, ICAR, New Delhi.
Pugalendhi, L. & Velmurugan, M. (2020). Standardization of Rapid Multiplication Technique (RMT) in Cassava (Manihot esculenta Crantz.). Int. J. Curr. Microbiol. App. Sci., 9(5), 3021- 3025.
Pugalendhi, L., Velmurugan, M., Kavitha, P. S., Kalarani, M. K.,, Senthil, N., Deivamani, M. & Venkatachalam, S. R. (2021). Evaluation and Characterization of High Yielding Cassava Mosaic Resistant Variety YTP 2. International Journal of Plant & Soil Science, 33(22), 198-208.
Radhakrishnan, A. R. S., Suja, G., & Sreekumar, J. (2022). How sustainable is organic management in cassava? Evidences from yield, soil quality, energetics and economics in the humid tropics of South India. Scientia Horticulturae, 293, 1-12.
Resenthal. (1972). Characteristics of granules. Awais da Academica Brasileira de Ciencias., 44(1), 55 - 60.
Silva, J. R. D. A. (1971). Cassava research at Agronomic Institute of Sao Paulo state. Agronomia., 23, 49 - 71.
Singh, K. D. & Mandal, R. C. (1970). Studies on the cultural practices in different tuber crops. Plant population in different types of cassava. Annual report, Central Tuber Crops Research Institute, Thiruvannthapuram, Kerala, India, 52 - 54.
Sinha, S. K. & Nair, T. V. R. (1968). Studies on the variability of cyanogenic glucoside content in cassava tubers. Indian Journal of Agricultural Science, 38(6), 958 - 963.
Szyniszewska, A. M. (2020). CassavaMap, a fine-resolution disaggregation of cassava production and harvested area in Africa in 2014. Scientific Data, 7(159), 1-8.
Tonukari, N. J. (2004). Cassava and the future of starch. Electronic Journal of Biotechnology, 7(1),1-8.
