Results 121 to 130 of about 758 (143)

A cytological assay reveals pathotype and resistance gene specific elicitors in leaf rust infections of wheat

Physiological and Molecular Plant Pathology, 1998
Abstract Several different types of preparation from leaf rust-infected leaves were applied to uninfected wheat leaves in two bioassays. One bioassay used intact leaves and symptom formation visible to the unaided eye. The other used exposed mesophylls on leaf segments which were stained and examined by optical microscopy. The first bioassay revealed
N. Saverimuttu, B.J. Deverall
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Analysis of leaf and stripe rust severities reveals pathotype changes and multiple minor QTLs associated with resistance in an Avocet × Pastor wheat population

Theoretical and Applied Genetics, 2012
Leaf rust and stripe rust are important diseases of wheat world-wide and deployment of cultivars with genetic resistance is an effective and environmentally sound control method. The use of minor, additive genes conferring adult plant resistance (APR) has been shown to provide resistance that is durable.
G M, Rosewarne, R P, Singh, J, Huerta-Espino, S A, Herrera-Foessel, K L, Forrest, M J, Hayden, G J, Rebetzke   +6 more
openaire   +2 more sources

Genes for leaf rust resistance in Indian and Pakistani wheats tested with Mexican pathotypes of Puccinia recondita f.sp. tritici

Euphytica, 1991
Genes conferring low seedling reaction to Mexican pathotypes of Puccinia recondita f. sp. tritici in 71 bread wheat (Triticum aestivum L.) cultivars from India and Pakistan were postulated. In total, 9 known and one unknown genes were identified, either singly or in combination: Lr1 (in 20 cultivars), Lr3 (5), Lr10 (21), Lr11 (1), Lr13 (43), Lr17 (5 ...
R. P. Singh, A. K. Gupta
openaire   +1 more source

First report of leaf rust pathotypes virulent to highly effective Lr‐genes transferred from Agropyron species to bread wheat

Plant Breeding, 1996
AbstractThe gene pool of effective sources of leaf rust resistance used in the breeding of wheat (Triticum aestivum L.) includes several species of the genus Agropyron. The genes deriving therefrom (Lr 19, 19d, 29, Agi1, Agi2, 38) are highly effective to pathotypes of Puccinia recondita Rob. ex Desm.
S. N. Sibikeev, V. A. Krupnov, S. A. Voronina, V. A. Elesin   +3 more
openaire   +1 more source

Genetic analysis of resistance to leaf‐rust (Puccinia recondita f. sp. tritici) pathotypes in the durum wheats ‘PBW 34’ and ‘DWL 5023’

Plant Breeding, 1995
AbstractGenetic analysis of leaf‐rust resistance was conducted on two durum wheats. Triticum durum cvs. ‘PBW 34’ and ‘DWL 5023’ were crossed with the leaf‐rust‐susceptible durum wheat ‘Malvi Local’. The F1, F2 and F3 generations were tested against leaf‐rust pathotypes 1, 77A and 108.
Gupta, S., Saini, R.G., Gupta, A.K.
openaire   +1 more source

Near-isogenic lines in NP 4 background carrying the genes Lr13, Lr18, Lr19 and Lr26 as locally adapted differentials for Indian pathotypes of wheat leaf rust

Indian Journal of Genetics and Plant Breeding (The), 2017
A backcross programme was conducted to transfer 13 of the Lr genes present in the leaf rust differentials being currently used in India viz., Lr1, Lr2a, Lr2c, Lr3a, Lr9, Lr10, Lr13, Lr15, Lr17a, Lr18, Lr19, Lr20 and Lr26 in the background of wheat variety NP 4 having desired agronomic traits.
Kamini Kaushal, S. C. Bhardwaj, A. N. Mishra, Y. M. Upadhyaya, T. L. Prakasha, Subodh Kumar, S. V. Sai Prasad, H. N. Pandey   +7 more
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Seedling resistant test of wheat genotypes against selective pathotypes of stem and leaf rusts under glass house condition

Ecology, Environment and Conservation
Forty six AVT wheat genotypes received from the Indian Institute of Wheat and Barly Research, Karnal (Haryana) during Rabi 2017-18 were screened for testing their resistance against selective and virulent pathotypes of stem and leaf rusts under glass house condition. These genotypes were tested at seedling stage against thirteen pathotypes of stem rust
M. A. Sushir, D.S. Kadam, V.M. Sali, D.P. Deshmukh, S.B. Dighule   +4 more
openaire   +1 more source

Pathotypes ofPuccinia hordeiwith Virulence for the Barley Leaf Rust Resistance GeneRph7 in the United States

Plant Disease, 1993
The barley (Hordeum vulgare) accession Cebada Capa has been used extensively as a source of resistance to the leaf rust pathogen (Puccinia hordei) in the Virginia barley breeding program, Cebada Capa possesses the resistance gene Rph7; and in the mid-Atlantic region of the United States, cultivars derived from it have remained resistant to P.
openaire   +1 more source

Diversity of Pathotypes of Leaf Rust (<i>Puccinia triticina</i>) Pathogen in Wheat Crop in Nepal

International Journal of Applied Agricultural Sciences, 2023
Suraj Baidya, Subash Chandra Bhardwaj, Deepak Bhandari   +2 more
openaire   +1 more source

Evaluation of Wheat Germplasm for Resistance to Leaf Rust (Puccinia triticina) and Identification of the Sources of Lr Resistance Genes Using Molecular Markers

Plants, 2021
Shynbolat Rsaliyev, Madina Kumarbayeva, Angelina Malysheva   +2 more
exaly