Himachal Journal of Agricultural Research

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Evaluation of Wheat Genotypes for Adult Plant Resistance Against Powdery Mildew Caused by Blumeria graminis tritici


Affiliations
1 Department of Genetics and Plant Breeding, CSK Himachal Pradesh Krishi Vishvavidyalaya, Palampur-176062, India
2 CSKHPKV, Rice & Wheat Research Centre, Malan-176 047, India
3 Department of Plant Pathology, CSK HPKV, Palampur-176062, India
4 Former Vice-Chancellor, CSK Himachal Pradesh Krishi Vishvavidyalaya, Palampur-176 062, India
 

Powdery mildew, caused by Blumeria graminis f.sp. tritici (Bgt) has emerged as a devastating diseases of wheat (Triticum aestivum L.) worldwide. The disease is widely prevalent and causes severe losses in the north and southern hills and north western plain zone of India. It can be effectively managed by cultivation of resistant varieties, however majority of the varieties grown in epidemiologically important areas are susceptible. A successful breeding programme requires stable resistant donors and in this context, thirty-six diverse promising wheat germplasm lines were evaluated at multi hotspot locations i.e. Rice and Wheat Research Centre, Malan and IIWBR, summer nursery at Dalang Maidan (Lahaul & Spiti) under natural epiphytotic and controlled (net house) conditions for three consecutive years. Four lines (ONS 29, ONS 27, Pollemer and PMC 1) were free from the disease whereas, three lines (EIGN 33, TL 2995 and TL 2999) were resistant (score 1-3) at both the locations. These stable and durable resistant donors may be used in the breeding programme to diversify the powdery mildew resistance base of future wheat varieties.

Keywords

Wheat, Powdery Mildew, Resistance, Blumeria graminis F.sp. tritici, Adult Plant Resistance.
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  • Evaluation of Wheat Genotypes for Adult Plant Resistance Against Powdery Mildew Caused by Blumeria graminis tritici

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Authors

Aashima Batheja
Department of Genetics and Plant Breeding, CSK Himachal Pradesh Krishi Vishvavidyalaya, Palampur-176062, India
Vijay Rana
CSKHPKV, Rice & Wheat Research Centre, Malan-176 047, India
A. K. Basandrai
Department of Plant Pathology, CSK HPKV, Palampur-176062, India
A. K. Sarial
Former Vice-Chancellor, CSK Himachal Pradesh Krishi Vishvavidyalaya, Palampur-176 062, India

Abstract


Powdery mildew, caused by Blumeria graminis f.sp. tritici (Bgt) has emerged as a devastating diseases of wheat (Triticum aestivum L.) worldwide. The disease is widely prevalent and causes severe losses in the north and southern hills and north western plain zone of India. It can be effectively managed by cultivation of resistant varieties, however majority of the varieties grown in epidemiologically important areas are susceptible. A successful breeding programme requires stable resistant donors and in this context, thirty-six diverse promising wheat germplasm lines were evaluated at multi hotspot locations i.e. Rice and Wheat Research Centre, Malan and IIWBR, summer nursery at Dalang Maidan (Lahaul & Spiti) under natural epiphytotic and controlled (net house) conditions for three consecutive years. Four lines (ONS 29, ONS 27, Pollemer and PMC 1) were free from the disease whereas, three lines (EIGN 33, TL 2995 and TL 2999) were resistant (score 1-3) at both the locations. These stable and durable resistant donors may be used in the breeding programme to diversify the powdery mildew resistance base of future wheat varieties.

Keywords


Wheat, Powdery Mildew, Resistance, Blumeria graminis F.sp. tritici, Adult Plant Resistance.

References