Growth and chemical composition of barley (Hordeum vulgare) cultivars on saline substrate as compared with a salt tolerant variety of wheat (Triticum aestivum)

1990 ◽  
pp. 463-467 ◽  
Author(s):  
R. Ansari
Keyword(s):  
Triticum Aestivum ◽  
Chemical Composition ◽  
Hordeum Vulgare ◽  
Salt Tolerant ◽  
Tolerant Variety

Ultrastructure of Plant Leaf Tissue Infected with Mite-Borne Viral-Like Pathogens

1970 ◽  
Vol 28 ◽  
pp. 178-179 ◽  
Author(s):  
O. E. Bradfute ◽  
R. E. Whitmoyer ◽  
L. R. Nault
Keyword(s):  
Triticum Aestivum ◽  
Zea Mays ◽  
Electron Microscope ◽  
Hordeum Vulgare ◽  
Microscope Study ◽  
Electron Microscope Study ◽  
Leaf Tissue ◽  
Leaf Ultrastructure ◽  
Double Membrane ◽  
Aceria Tulipae

A pathogen transmitted by the eriophyid mite, Aceria tulipae, infects a number of Gramineae producing symptoms similar to wheat spot mosaic virus (1). An electron microscope study of leaf ultrastructure from systemically infected Zea mays, Hordeum vulgare, and Triticum aestivum showed the presence of ovoid, double membrane bodies (0.1 - 0.2 microns) in the cytoplasm of parenchyma, phloem and epidermis cells (Fig. 1 ).

scholarly journals EVALUACIÓN AGRONÓMICA DE CEREALES FORRAJEROS DE USO POTENCIAL EN SISTEMAS DE PRODUCCIÓN DE LECHE DE ALTURA

2019 ◽  
Vol 3 (1) ◽  
pp. 72-77
Author(s):  
María Mesén ◽  
William Sánchez
Keyword(s):  
Triticum Aestivum ◽  
Hordeum Vulgare ◽  
Avena Sativa

La presente investigación se realizó en el año 1996, en el distrito Cot, cantón Oreamu-no, provincia Cartago. La topografía de la finca es irregular y se ubica a una altitud de 2.100 msnm. El objetivo del estudio fue evaluar la adaptabilidad de una colección de 13 ce-reales forrajeros, nueve variedades de Avena (Avena sativa), tres de Trigo (un Triticum se-cale y dos Triticum aestivum) y una de Cebada (Hordeum vulgare). El diseño experimental utilizado, fue de bloques completos al azar, con tres repeticiones, representando cada cul-tivar un tratamiento. Las variables evaluadas fueron: cobertura, altura, plagas, producción de biomasa y valor nutritivo. En cuanto a las variables cobertura y altura los valores fueronaltos en todos los cultivares cosechados, superiores a 90% y 75 cm respectivamente, losTriticum y la Hordeum vulgare fueron inferiores a las avenas en ambos aspectos. La única enfermedad que se presentó fue la Puccinia sp. eliminando por completo las avenas Ne-huén, Dula, Gaviota y Llaofén y afectando levemente (5% del follaje afectado) los cereales Culgoa II, Águila y Triticum secale. Los demás cereales no fueron dañados por ninguna pla-ga. La producción de biomasa en los diferentes cultivares osciló en un rango de 6,8 y 15,5 t/ha/corte. El análisis de varianza para esta variable mostró diferencias entre cultivaresP=0,01 y P=0,001 para t/ha/corte y tasa de crecimiento respectivamente. Según los altos rendimientos de materia seca, adecuado valor nutritivo y ausencia de plagas, se puede con-cluir que los cereales que mejor se adaptaron a la zona en estudio fueron las avenas Riel, Nobby y Amby. Se debe continuar investigando con los cultivares sobresalientes bajo pas-toreo y en sustitución de alimentos balanceados.

scholarly journals Screening and Evaluation of Saline–Alkaline Tolerant Germplasm of Rice (Oryza sativa L.) in Soda Saline–Alkali Soil

Agronomy ◽  
2018 ◽  
Vol 8 (10) ◽  
pp. 205 ◽  
Author(s):  
Hao Wang ◽  
Tetsuo Takano ◽  
Shenkui Liu
Keyword(s):  
Survival Rate ◽  
Salt Tolerance ◽  
Antioxidant Capacity ◽  
Soluble Sugars ◽  
Natural State ◽  
Salt Tolerant ◽  
Alkali Soil ◽  
Alkaline Tolerance ◽  
Tolerant Variety ◽  
Alkaline Tolerant

The improvement and development of saline–alkali land is of great significance for promoting food production and sustainable development. It is necessary to study the mechanism of saline–alkaline tolerance and breed saline–alkaline tolerant crops to improve the utilization of saline–alkali land. For this study, we conducted a three-year pot experiment to screen the saline–alkaline tolerant germplasm of 72 rice genotypes from hundreds of elite cultivars during the whole growth period using a certain proportion of soda saline–alkali soil. The selected salt-tolerant variety was combined with a salt-sensitive variety to analyze the saline–alkaline tolerance mechanism by using the saline–alkaline soil leachate. We eliminated 36 genotypes with low seedling survival rates under salt–alkali stress, and the salt-tolerant Jiudao-66 (D68) variety had a higher survival rate than most varieties. The membership degree of Jiudao-66, according to the salt tolerance index of multiple agronomic traits, is higher than that of 34 varieties, with a higher survival rate except when compared to D36. The survival rate and these salt tolerance indexes of Jiudao-66 were significantly higher than those of Kitaake (salt-sensitive). Under the stress of leachate, the content of proline and soluble sugars in the shoots of Jiudao-66 were higher than that of Kitaake, and the total antioxidant capacity was stronger than that of Kitaake. However, the content of malondialdehyde was lower than that of Kitaake. Additionally, the Na+/K+ ratios in shoots and roots were not significantly differently between Kitaake and Jiudao-66. The results showed that Jiudao-66, as a salt-tolerant variety, is more tolerant to salt and alkali in a near-natural state due to its stronger tolerance of osmotic stress, and it can accumulate more proline and soluble sugars under stress. At the same time, Jiudao-66 also has a stronger antioxidant capacity. Its ion regulation ability has no obvious advantage.

Wheat dwarf virus. [Distribution map].

2018 ◽  
Author(s):  
Keyword(s):  
Triticum Aestivum ◽  
Czech Republic ◽  
Hordeum Vulgare ◽  
Avena Sativa ◽  
Dwarf Virus ◽  
Wheat Dwarf Virus ◽  
Distribution Map ◽  
Virus Distribution ◽  
New Distribution ◽  
Distribution In Europe

Abstract A new distribution map is provided for Wheat dwarf virus. Geminiviridae: Mastrevirus. Hosts: wheat (Triticum aestivum), barley (Hordeum vulgare), oat (Avena sativa). Information is given on the geographical distribution in Europe (Austria, Bulgaria, Czech Republic, Finland, France, Germany, Hungary, Italy, Poland, Romania, Slovakia, Slovenia, Spain, Sweden, UK, Ukraine), Asia (China, Hebei, Qinghai, Shaanxi, Shanxi, Sichuan, Yunnan, Iran, Syria, Turkey), Africa (Tunisia Zambia).

Gibberella coronicola. [Distribution map].

2011 ◽  
Author(s):  
Keyword(s):  
South Africa ◽  
Triticum Aestivum ◽  
New Zealand ◽  
Hordeum Vulgare ◽  
New South ◽  
South Australia ◽  
Distribution Map ◽  
South Wales ◽  
New Distribution ◽  
Gibberella Coronicola

Abstract A new distribution map is provided for Gibberella coronicola T. Aoki & O'Donnell. Ascomycota: Hypocreales. Hosts: common barley (Hordeum vulgare), common wheat (Triticum aestivum) and other winter-grown cereals. Information is given on the geographical distribution in Asia (Iran, Turkey), Africa (SOuth Africa), North America (Canada, ALberta, British Columbia, Saskatchewan, USA, Idaho, Montana, Oregon, Washington), Oceania (Australia, New South Wales, Queensland, South Australia, Victoria, New Zealand).

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