Abstract
Leaf or brown rust of wheat incited byPuccinia triticinaEriks. is the most important one. The pathogen spreads across national boundaries, virulences get mixed and the disease severity level reached does affect the crop productivity. The Gangetic Plain (GP) being warmer sowing is done in November and wheat is harvested by mid April. The 18 million hectares under wheat in this area is predominantly irrigated and well fertilized having a cultivar mosaic of at least 30 or more genotypes differing for their leaf rust resistance. The primary inoculum source is the Cental Himalaya (CH) of Central Nepal and here the CIMMYT sponsored activities have promoted varietal diversification. Shift in sowing time and cultivation of several varieties differing in resgene combination over eastern GP has delayed the process of establishment of the primary foci of leaf rust here before January end. Insufficient inoculum multiplication then curtails the spread of urediospores westward beyond Delhi. Build up of disease severity levels to epidemic proportions gets delayed by at least two weeks. As a consequence of this temporal delay, wheat gets harvested before the severity could inflict crop losses. Occasional inter-zone exchange of inoculum before the crop harvest facilitates the injection of new virulences
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References
Anonymous (2005) Marker assisted selection for rust resistance. In: Jag S, Mishra B (eds) Project Director Report. Directorate of Wheat Research, Karnal, 132 001, Haryana, India, pp 14–15
Cherukuri DP, Gupta SK, Charpe A, Koul S, Prabhu KV, Singh RB, Rizwanul Haq QM (2005) Molecular mapping of Aegilops speltoides derived leaf rust resistance gene Lr 28 in wheat. Euphytica 143:19–26
Gupta SK, Charpe A, Koul S, Prabhu KV, Rizwanul Haq QM (2005) Development and validation of molecular markers linked to an Aegilops umbellulatae- derived leaf rust resistance gene, Lr 9 for marker-assisted selection in bread wheat. Genome 48:823–830
Joshi LM (1980) The disease surveillance system in India. In: Govindu HC, Veeresh GK, Walker PT, Jenkyn JF (eds) Assessment of Crop Losses due to Pests and Diseases. Univ Agric Sci, Hebbal, Bangalore, UAS Tech Ser Nˆ3 pp 211–217
Joshi LM, Nagarajan S, Srivastava KD (1977) Epidemiology of brown and yellow rusts of wheat in India. I. Place and time of appearance and spread. Phytopath Z 90:116–22
Mehta KC (1952) Further studies on cereal rusts in India. Part II. Sci. Monogr. Nˆ18 , Indian Council of Agricultural Research, New Delhi, India
Nagarajan S, Joshi LM (1978) Epidemiology of brown and yellow rusts of wheat over north India. II. Associated meteorological conditions. Plant Dis Rep 62:186–188
Nagarajan S, Joshi LM (1985) Epidemiology in the Indian sub continent. In: Roelfs AP, Bushnell WR (eds) The Cereal Rusts, Diseases, Distribution, Epidemiology, and control, Vol. II. Academic Press, New York, pp 371–399
Nagarajan S, Joshi LM, Srivastava KD, Singh DV (1980) Epidemiology of brown and yellow rusts of wheat in north India. IV. Disease management recommendations. Cereal Rusts Bull 7:15–20
Nagarajan S, Nayar SK, Bahadur P (1983) The proposed Brown Rust of Wheat (Puccinia recondita f. sp. tritici) Virulence Monitoring System. Curr Sci 52:413–416
Nagarajan S, Nayar SK, Bahadur P, Bhardwaj SC (1987) Evaluation of some Indian wheats for Yr, Lr, and Sr genes by matching technique and genetic uniformity observed. Cereal Rusts Bull 15:53–64
Nayar SK (1989) Genetics and Breeding for Rust Resistance in Wheat. ACIAR-ICAR Collaborative Research Report, Plant Breeding Institute, University of Sydney, Australia, p 50
Pisharoty PR, Desai BN (1956) Western disturbances and Indian weather. Indian J Meteorol Geophys 7:333–338
Prabhu KV, Gupta SK, Charpe A, Koul S (2004) SCAR marker tagged to the alien leaf rust resistance gene Lr 19 uniquely marking the Agropyron elongatum gene Lr 24 in wheat: a revision. Plant Breed 123:417–420
Saini RG, Kaur M, Singh B, Sharma S, Nanda GS, Nayar SK, Gupta AK, Nagarajan S (2002) Gene Lr 48 and Lr 49 for hypersensitive adult plant leaf rust resistance in wheat (Triticum aestivum L). Euphytica 124:365–370
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Nagarajan, S., Saharan, M.S. (2007). Epidemiology of Puccinia Triticina in Gangetic Plain and planned containment of crop losses. In: Buck, H.T., Nisi, J.E., SalomĂłn, N. (eds) Wheat Production in Stressed Environments. Developments in Plant Breeding, vol 12. Springer, Dordrecht. https://doi.org/10.1007/1-4020-5497-1_8
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DOI: https://doi.org/10.1007/1-4020-5497-1_8
Publisher Name: Springer, Dordrecht
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