Quantitative resistance and its components in 16 barley cultivars to yellow rust, Puccinia striiformis f. sp. hordei

Sandoval-Islas, José Sergio; Broers, L.H.M.; Mora-Aguilera, Gustavo; Parlevliet, J.E.; Osada-Kawasoe, S.; Vivar, H.

doi:10.1007/s10681-006-9236-y

Cited by 26 publications

(27 citation statements)

References 43 publications

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“…The shriveling of grains and ayield reduction was well-documented in many previous studies (Afzal et al 2007(Afzal et al , 2008Safavi and Afshari 2012). Moreover, the correlation between FRS, CI, AURPC, and rAURPC was determined and found positive at p = 0.01 which is in agreement with the results of other researchers on cereal-rust pathosystems (Sandoval-Islas et al 2007;Safavi et al 2010;Shah et al 2010). The significant correlation of rAURPC with quantitative resistance components i.e.…”

Section: Discussionsupporting

confidence: 89%

“…The significant correlation of rAURPC with quantitative resistance components i.e. latent period and infection frequency, was also reported by Sandoval-Islas et al (2007) while a negative correlation between rAURPC and yield loss was also documented (Ochoa and Parlevliet 2007). A low rAURPC value along with a low CI is the preferred criteria in field selection of lines, conferring partial resistance among the repertories of germplasm, in situations where greenhouse facilities are inadequate ).…”

Section: Discussionmentioning

confidence: 83%

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Appraisal of wheat germplasm for adult plant resistance against stripe rust

Saleem¹,

Arshad²,

Shokat³

et al. 2015

Journal of Plant Protection Research

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Abstract:The resurgence of wheat stripe rust is of great concern for world food security. Owing to resistance breakdown and the appearance of new virulent high-temperature adapted races of Puccinia striiformis f. sp. tritici (Pst), many high yielding commercial varieties in the country lost their yield potential. Searching for new sources of resistance is the best approach to mitigate the problem. Quantitative resistance (partial or adult plant) or durable resistance is reported to be more stable than race specific resistance. In the current perusal, severity. There were 21 lines which were immune (no disease), 16 which were resistant, five moderately resistant, two resistant-to-moderately resistant, one moderately resistant-to-moderately susceptible, 5 moderately susceptible-to-susceptible, one moderately susceptible, and six exhibited a susceptible response. Nevertheless, 51 lines exhibited a high level of partial resistance while the three lines, NW-5--1212-1, NW-7-30-1, and NW-7-5 all showed a moderate level of partial resistance based on FRS, while 54 lines, on the basis of AURPC and rAURPC, were identified as conferring a high level of partial resistance. Moreover, adult plant resistance was conferred by 47 wheat lines, based on CI value. It was striking that, 13 immune lines among 21 were derived from parents of CIMMYT origin. Cluster analysis was executed to determine the diversity among the wheat genotypes based on stripe rust resistance and yield parameters. All genotypes were grouped into nine clusters exhibiting a high level of diversity at a 25% linkage distance. There were 29 wheat lines resistant to stripe rust that were grouped into the first three clusters, while 4 high-yielding lines were in Cluster VIII. The susceptible check, Morocco, was separated from rest of lines and fell in the last cluster i.e. Cluster IX. Based on the results, inter-crossing immune/ resistant lines is recommended, and with high yielding lines − it is also recommended that cultivars with improved disease resistance and yield potential be developed.

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Section: Discussionsupporting

confidence: 89%

Section: Discussionmentioning

confidence: 83%

Appraisal of wheat germplasm for adult plant resistance against stripe rust

Saleem¹,

Arshad²,

Shokat³

et al. 2015

Journal of Plant Protection Research

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“…This positive correlation is in agreement with the results of other researchers on cereals-rust pathosystems (SandovalIslas et al, 2007;Safavi et al, 2013;Singh et al, 2015). Sandoval-Islas et al (2007) found good correlation of rAUDPC with quantitative resistance components i.e., latent period and infection frequency. Field selection of the slow rusting trait preferably by low rAURPC and FRS along with CI, is feasible where greenhouse facilities are inadequate .…”

Section: Apparent Infection Rate (R) Valuesupporting

confidence: 92%

Assessment of Slow Rusting Resistance Components to Stripe Rust Pathogen in some Exotic Wheat Germplasm

Singh¹,

Singh²,

Singh³

et al. 2017

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Stripe rust caused by Puccinia striiformis f. sp. tritici is one of the most destructive diseases of wheat. It is emerging as an important constraint to wheat production worldwide and northern India. Host resistance is the most economical way of controlling respective pathogen. However, race-specific resistance is overcome by the evolution of new races of the pathogens. Conversely, race non-specific or quantitative resistance, controlled by many genes and effective at the adult plat stage, is generally considered more durable and long lasting. Such type of resistance is of primary interest to wheat breeders around the world. With this background, experiments were conducted to assess the levels of slow rusting/ adult plant resistance in exotic wheat germplasm (CIMMYT Mexico Core Germplasm Panel, CIMCOG). Sixty two exotic wheat germplasm including susceptible checks were evaluated against yellow rust for resistance both at seedling as well as adult plant stages. Slow rusting/partial resistance/adult plant resistance was assessed under field conditions through host response and epidemiological parameters estimates i.e., final rust severity (FRS), coefficient of infection (CI), relative area under disease progress curve (rAUDPC) and apparent infection rate (r). Promising slow rusting resistance was observed on the germplasm viz., CIMCOG 1, 2, 3, 5, 6, 7, 12, 14, 15, 17, 18, 20, 21, 22, 26, 27, 28, 29, 32, 33, 34, 35, 36, 38, 40, 43, 46, 47, 49, 52, 53, 58, 59 and 60 consistently during rabi seasons of 2013-16. All these promising stripe rust resistant germplasm at adult plant stage were susceptible at seedling stage to yellow rust, which indicated presence of slow rusting resistance among the germplasm. Significant diversity was observed for level of slow rusting resistance among the CIMMYT core wheat germplasm, which may be exploited in further breeding strategies to develop consistent and durable resistant varieties against stripe rust in India.

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“…The identification of sources of resistance to BR is important for the oil palm industry, and the analysis of the rate of progress of the disease has been used in other crops for selection in breeding programs to identify resistant genotypes (Peacocke 1995;Linders et al 1996;Ngugi et al 2001;Sandoval-Islas et al 2007). Thus, the objective of this research was to evaluate the use of epidemiological tools to determine the response of different oil-palm cultivars to BR and their potential use for the identification and selection of resistant genotypes.…”

Section: Introductionmentioning

confidence: 99%

Assessment of tolerance to bud rot in oil palm under field conditions

Navia¹,

Ávila²,

Daza³

et al. 2014

Eur J Plant Pathol

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Bud rot (BR), caused by Phytophthora palmivora, is one of the most devastating diseases affecting oil palm. It has destroyed oil palm plantations in countries throughout Latin America. To assess their resistance to BR, two cultivars of African oil palm (Elaeis guineensis Jacq.) and two interspecific OxG (E. oleifera × E. guineensis Coari × La Mé and Coari × Pobè) hybrids were planted under field conditions in a plantation with a strong presence of BR. Incidence and severity data were recorded for 1812 days from the date of planting; the disease index was estimated, and progress curves were constructed and adjusted to monomolecular, logistic and Gompertz models. Severity progression and incidence progression rates for each cultivar were estimated using a simple linear regression. Statistical comparisons of the parameters were performed using Student's t-tests. Survival analyses were performed for each of the cultivars. Log-rank statistics were used to compare the responses of the cultivars to BR. Severity progression in the interspecific hybrids was significantly slower than that in the E. guineensis cultivars. No statistically significant differences were found in the progression rates among the hybrids; however, the survival analysis did show statistically significant differences. The Coari × Pobè hybrid had the longest survival time. Considering that partial resistance does not prevent plants from becoming infected but does slow disease progression, the two evaluated hybrids may have commercially valuable levels of resistance.

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Quantitative resistance and its components in 16 barley cultivars to yellow rust, Puccinia striiformis f. sp. hordei

Cited by 26 publications

References 43 publications

Appraisal of wheat germplasm for adult plant resistance against stripe rust

Appraisal of wheat germplasm for adult plant resistance against stripe rust

Assessment of Slow Rusting Resistance Components to Stripe Rust Pathogen in some Exotic Wheat Germplasm

Assessment of tolerance to bud rot in oil palm under field conditions

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