Namrata Dhirhi, Nandan Mehta, and Satyapal Singh*
Department of Genetics and Plant Breeding, Indira Gnadhi Krishi Vishwavidyalaya,
Raipur-492012 (Chhattisgarh)
Email: spsinghigkv@gmail.com
Received-14.01.2017, Revised-01.02.2017
Abstract: A set of one hundred fifty linseed germplasm accessions were evaluated for powdery mildew tolerance which was taken from AICRP on Linseed, Department of Genetics and Plant Breeding IGKV, Raipur (C.G.) during Rabi 2014-15 and 2015-16. In India and Chhattisgarh it has been observed that major limiting factors for higher production is powdery mildew. Particularly in Chhattisgarh the yield losses due to powdery mildew may be more than 60% when the disease is severe. Powdery mildew is the major cause in the linseed production during utera cultivation, It lows yield about 40%. The assessment of the disease per plant was obtained by observing the intensity of lesions present on the leaves. Keeping in this view, disease screening studies were made to understand the development of powdery mildew diseases. So, we need a high yielding linseed variety for late sown conditions with resistance to powdery mildew. With this objective, field screening of linseed genotypes for resistance to powdery mildew was initiated. Powdery mildew score ranged from 0 (free) to 5 (highly susceptible), 21 genotypes found highly resistant, 44 genotypes showed resistant, 47 genotypes comes under moderately resistant, 20 genotypes shows susceptible and only 8 genotypes showed highly susceptible. Despite being high susceptible, some test entries produced good yield and showed tolerance to powdery mildew disease. Highly resistant genotype could be utilized as donar parent for powdery mildew resistance breeding programme.
Keywords: ALA, Germplasm, Linseed, Powdery mildew, SDG
REFERENCES
Anonymous (2014). Annual report linseed 2014-15. AICRP on Linseed, PC Unit Kanpur.
AICRP (1991). Annual Progress Report. All India Co-ordinated Research project on oilseeds (Safflower and Linseed) ICAR, Directorate of Oilseed Research, Rajendra Nagar, Hyderabad, pp.1-6.
Aly, A.A., Ashour, A.Z.A., El-Kady, E.A.F. and Mostafa, M.A. (1994). Effectiveness of fungicides for control of powdery mildew of flax and effect of the disease on yield and yield components. J. Agril. Sci., 19:4383-4393.
Aly, A.A., Mansour, M.T.M., Mohamed, H. and Abd- Elsalam, K.A. (2012). Examination of correlations between several biochemical components and powdery mildew resistance of flax cultivars. Plant Pathol. J., 28: 149-155.
Anonymous (2014). Annual report linseed 2014-15. AICRP on Linseed, PC Unit Kanpur.
Beale, R.E. (1991). Studies of resistance in linseed cultivars to Oidium lini and Botrytis cinerea. In Production and protection of linseed. Aspects of Applied Biology Series. Association of Applied Biologists, Horticulture Research International, Wellesbourne, Warwick, UK.Vol. 28. pp. 85–90.
Dash, J. Naik, B.S. and Mohapatra, U.B. (2016). Field screening of linseed genotypes for resistance to powdery mildew (Oidium lini Skoric) in the north central plateau zone of Odisha. Inter. J. Advanced Res., 4(4): 961-962
Gill, K.S. (1987). Linseed. ICAR publication, New Delhi, India.
Mohamed, H., Hady, A.A.E., Mansour, M. and Samawaty, A.E.R.E. (2012). Association of oxidative stress components with resistance to flax powdery mildew. Tropical Plant Pathol., 37(6): 386-392.
Morris, D.H. (2005). Flax-a smart choice. New Flax Facts, Fax council of Canada.
Rashid, K. and Duguid S. (2003). Inheritance of resistance to powdery mildew in flax. Canadian J. Plant Pathol., 27 (3): 404-409.
Reddy, M.P., Arsul, B.T., Shaik, N.R. and Maheshwari, J.J. (2013a). Estimation of heterosis for some traits in linseed (Linumu sitatissimum L.). J. Agri and Vet. Sci., 2(5): 11-17.
Reddy, M.P., Reddy, B.N., Arsul, B. T. and Maheshwari, J.J. (2013b). Genetic variability, heritability and genetic advance of growth and yield components of linseed (Linum usitatissimum L.).Int. J. Curr. Microbiol. App. Sci., 2(9): 231-237.
Reddy, M.P., Reddy, B.N., Arsul, B. T. and Maheshwari, J.J. (2013c). Character Association and Path Coefficient Studies in Linseed. Int. J. Curr. Microbiol. App. Sci., 2(9): 250-254.
Richharia, R.H. (1962). Linseed. The Indian Central Oilseeds Committee, Hyderabad, India: 155.
Saharan, O. S. and Saharan, M.S. (1999). Inheritance of resistance in linseed to powdery mildew (Oidium lini) disease. Indi. Phytopath., 52 (1): 86-87.
Srivastava, R.L., Singh, J., Husain, K., Malik, Y.P., Dubey, S.D., Rai, J. and Bajpai, M. (1997). Linseed: In-Efficient Management of Dryland crops in India. Oilseed, pp. 228-256.
Vavilov, N.I. (1935). Studies on the origin of cultivated plants. Bull. Bot. Pl. Breed., 16: 39-145.