Yield Losses in Wheat Caused by Stripe Rust (&amp;lt;i&amp;gt;Puccinia striiformis&amp;lt;/i&amp;gt;) in Egypt

Shahin, Atef A.; Ashmawy, M. A.; El-Orabey, Walid; Esmail, Samar M.

doi:10.11648/j.ajls.20200805.17

Cited by 16 publications

(20 citation statements)

References 20 publications

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“…That causality effect between yield reduction and stripe rust resistance was highly pronounced by the negative and highly significant correlation between both traits, as expected. The negative impact of stripe rust on grain yield production was reported by several authors [1,[7][8][9]12,13,33,36,37]. That negative impact could be attributed to the photosynthesis impairment and assimilates reduction due to stripe rust infection, which reduces flower development, fertilization, and the development of ovules and consequently seed setting [38,39].…”

Section: Discussionmentioning

confidence: 87%

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Impact of Stripe Rust Resistance Alleles on Wheat Grain Yield Using Landraces and Improved Accessions

IS¹

2021

annagriccropsci

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Stripe rust is one of the most devastating biotic stresses to cause grain yield losses in wheat. In the current study, 227 imported accessions, and six widely grown modern cultivars (Sids14, Sids12, Misr1, Misr2, Giza171, and Gimmiza9), were used. All plant materials were planted in the field and evaluated for stripe rust resistance and grain yield. Five Simple Sequence Repeats (SSR) markers Xpsp3000, Xbarc8, Xgwm419, Xwmc44, and Xbarc32, respectively, are associated with five essential stripe rust resistance genes Yr10, Yr15, Yr26, Yr29, and Yr59, were also used. The results indicated a highly positive and significant correlation between grain yield and stripe rust resistance. Furthermore, as the number of stripe rust resistance alleles increased, both grain yield and stripe rust resistance increased. Out of the 233 accessions used, 11 accessions were found to contain the five resistance genes. The identified resistant accessions could be used as a gene source to enhance stripe rust resistance in wheat breeding programs. SSR markers used in the current study effectively capture a substantial part of the phenotypic variation caused by stripe rust. Thus, these five markers could be used effectively in marker-assisted selection for stripe rust resistance.

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Section: Discussionmentioning

confidence: 87%

“…Grain yield losses between 14% and 26% due to stripe rust in the Nile Delta were recorded [8]. Shahin et al [9] evaluate eight commercially grown Egyptian wheat cultivars for stripe rust under the field growth conditions. They concluded that most commercially grown wheat cultivars in Egypt possess low adult plant resistance levels to stripe rust.…”

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confidence: 99%

Impact of Stripe Rust Resistance Alleles on Wheat Grain Yield Using Landraces and Improved Accessions

IS¹

2021

annagriccropsci

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“…El rendimiento en granos y el peso de 1000 granos se redujo significativamente en aquellos ambientes sin fungicida foliar y con la implantación de cultivos susceptibles a la roya amarilla; por ejemplo, en el cultivar Algarrobo sin aplicación de fungicida foliar, el rendimiento se redujo en casi un 75 % (Cuadro 1). Otros investigadores en Egipto observaron pérdidas de rendimiento de hasta un 69,33 %, por causa de la roya amarilla en cultivares susceptibles (Shahin et al, 2020).…”

Section: Discussionunclassified

“…La pérdida máxima de rendimiento en trigo (50 %) se produce cuando todo el follaje está infectado con roya amarilla (Shahin et al, 2020;Vergara-Diaz et al, 2015).…”

Section: Introductionunclassified

Efecto sobre el rendimiento del trigo (Triticum aestivum) de la roya amarilla causada por Puccinia striiformis f. sp. tritici

Lavilla

2021

Agron. Mesoam.

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Introducción. En los últimos años la roya amarilla causada por Puccinia striiformis fue la enfermedad más prevalente en trigo (Triticum aestivum), en el norte de la provincia de Buenos Aires. Objetivo. Evaluar el progreso de la roya amarilla en cultivares de trigo, con y sin aplicación de fungicida foliar y su efecto sobre el rendimiento y sus componentes. Materiales y métodos. Este estudio se llevó a cabo durante dos años consecutivos (2017 y 2018) en la localidad de Junín, Buenos Aires, Argentina, en diecinueve cultivares de trigo, con y sin aplicación de fungicida foliar. Se cuantificaron los daños de la roya amarilla sobre el rendimiento y la calidad industrial. Se evaluó la evolución de la enfermedad mediante el área bajo la curva de progreso de la intensidad de la enfermedad (ABCPIE). Se asoció el ABCPIE con el rendimiento, sus componentes y el peso hectolítrico. Resultados. De todas las variables analizadas, el ABCPIE tuvo una interacción significativa (p<0,05) entre la aplicación de fungicida foliar y cultivar utilizado. Los cultivares Lapacho, Minerva, MS 415 y SY 211, fueron resistentes a la roya amarilla. El cultivar más susceptible a la enfermedad fue Algarrobo. La aplicación de fungicida foliar, con niveles bajos de la enfermedad, redujo significativamente su evolución; reflejado a partir del área bajo la curva de progreso de la intensidad de la enfermedad. Conclusión. La evolución en el tiempo de la roya amarilla causada por P. striiformis dependió del comportamiento genético del cultivar y de la aplicación de fungicida foliar. Los cultivares que tuvieron los mayores rendimientos, menor ABCPIE y mayor peso hectolítrico fueron: Lapacho, SY 11, BIO 1006 y Minerva.

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“…Many researchers found that the wheat genotypes with lower values of AUDPC mostly showed the lowest yield loss; while, higher values of AUDPC caused higher grain yield loss [1]. The genotypes that have high level of resistance for both rust diseases will be used for future crossing / breeding in wheat improvement program in Ethiopia as a diseases resistance sources and the other genotypes that are high yielding, resistant to both diseases and good for other important traits will be released as a new varieties, so these nine genotypes are considered as new sources of resistance and after further test best performed genotypes with good disease resistance will be released as a new variety.…”

Section: Figure 2 Grain Yield and Yellow Rust Diseases Correlationmentioning

confidence: 99%

Impact of Stem and Yellow Rusts on Grain Yield of Bread Wheat (Triticum Aestivum L) Genotypes Under Rainfed Conditions of Ethiopia

Shewaye¹,

Zegaye²,

Tadesse³

et al. 2021

IJBC

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Plant diseases are among the major factors affecting the yield of wheat, especially rust diseases have historically been one of principal biotic production constraints in the world. Among the three main rusts affecting wheat, yellow rust, caused by Puccinia striiformis f. sp. tritici, and Stem rust caused by Puccinia graminis f. sp tritici are the most important disease in most wheat growing areas of Ethiopia. There are a limited number of resistant varieties available and new pathotypes that overcome the most widely deployed genes have arisen. The development of improved varieties of bread wheat (Triticum aestivum L.) has always remained a focal point for wheat breeders. Therefore, the purpose of this study was to select genotypes with good agronomic performance that have high grain yield and yield component with better rust resistance especially for stripe and stem rusts which are the major diseases in Ethiopia and to recommend the best genotypes to be released as new varieties and as an initial material in breeding. Twenty-Eight genotypes with two checks were evaluated in consecutive two years. From the twenty-eight tested genotypes almost all genotypes except one (ETBW9589) showed higher grain yield than the two standard checks (Kingbird and Ogolcho). But for the case of both rust diseases as AUDPC and CI showed that tested genotypes were exhibited different reaction responses, if we see one genotypes as an example ETBW9578 had the highest grain yield and good for yellow rust but as AUDPC showed it is very susceptible reaction response for stem rust. Generally phenotypic variation was observed for infection types, level of severity and reaction response for both diseases of the 28 tested elite bread wheat genotypes and the two standard checks. Reaction response for stem rust exhibited from susceptible (S) to Moderately resistance-moderately susceptible (M) and from immunity (0) to moderately resistance (MR) for the yellow rust. Around nine genotypes had good performance for all parameters; for grain yield and yield components and also for both rust diseases. The results of current study indicated that the genotypes had diversity regarding resistance reaction, ranging from complete resistance to susceptible. Most of the evaluated genotypes exhibited moderate resistance (MR) to moderately susceptible (MS) reactions under high disease pressure.

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Yield Losses in Wheat Caused by Stripe Rust (<i>Puccinia striiformis</i>) in Egypt

Cited by 16 publications

References 20 publications

Impact of Stripe Rust Resistance Alleles on Wheat Grain Yield Using Landraces and Improved Accessions

Impact of Stripe Rust Resistance Alleles on Wheat Grain Yield Using Landraces and Improved Accessions

Efecto sobre el rendimiento del trigo (Triticum aestivum) de la roya amarilla causada por Puccinia striiformis f. sp. tritici

Impact of Stem and Yellow Rusts on Grain Yield of Bread Wheat (Triticum Aestivum L) Genotypes Under Rainfed Conditions of Ethiopia

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