Assessment of the Levels of Mycotoxins in Varieties of Cereals (Oryza Sativa, Zea Mays, Pennisetum Glaucum and Triticum Aestivum) Obtained from Calabar Markets, Cross River State, Nigeria

2018 ◽  
Vol 8 (4) ◽  
Author(s):  
P. A. Neji ◽  
T. O. Vincent ◽  
R. C. Anozie
Keyword(s):  
Triticum Aestivum ◽  
Zea Mays ◽  
Oryza Sativa ◽  
Pennisetum Glaucum ◽  
Cross River ◽  
Cross River State

scholarly journals Estado del Cultivo de Plátano (Musa sp) en el Municipio de Tlapacoyan, Veracruz

UVserva ◽  
2018 ◽  
Author(s):  
Paloma Violeta Susan Tepetlan
Keyword(s):  
Triticum Aestivum ◽  
Zea Mays ◽  
Oryza Sativa ◽  
Banana Production ◽  
Tropical Countries ◽  
Musa Sp ◽  
Important Crop ◽  
The World

Los bananos y plátanos (Musa sp) se cultivan en más de 120 países alrededor del mundo y suministran una importante fuente de carbohidratos para más de 400 millones de personas en países tropicales, representan el cuarto cultivo de mayor importancia después del maíz (Zea mays), trigo (Triticum aestivum) y arroz (Oryza sativa). En México, se cultivan en 15 Estados, la variedad de bananos y plátanos que se cultivan  es amplia, dentro de ellas destacan los bananos como el Plátano Tabasco o Roatán, Enano Gigante, Criollo, Valery, Dominico, Manzano y los plátanos Macho, Morado y Pera, entre otros. Veracruz, ocupa el tercer lugar a nivel nacional en su, después de Chiapas y Tabasco, produciéndose en zonas en las que el cultivo es una de las principales actividades.Palabras clave: cultivo de plátano; Veracruz; países tropicales; Tlapacoyan Abstract Bananas and plantains are grown in more than 120 countries around the world, provides an important source of carbohydrates for more than 400 million people in tropical countries, is the fourth most important crop after maize (Zea mays), wheat (Triticum aestivum) and rice (Oryza sativa). In Mexico, are grown in 15 states, banana and plantain cultivars that are grown is wide, within them we can found bananas as Tabasco or Roatán, Giant Dwarf, Macho, Criollo, Valery, Dominico, Manzano and plantains as Morado and Pera between others. Veracruz, is third in banana production, after Chiapas and Tabasco, taking place in areas where this crop is one of the main activities.Keywords: banana cultivation; Veracruz; tropical countries; Tlapacoyan

scholarly journals Allelopathic Effects of Aqueous Extract of Leaves of Parthenium Hysterophorus L. on Seed Germination and Seedling Growth of Some Cultivated and Wild Herbaceous Species

1970 ◽  
Vol 5 (5) ◽  
pp. 33-39 ◽  
Author(s):  
Seerjana Maharjan ◽  
Bharat Babu Shrestha ◽  
Pramod Kumar Jha
Keyword(s):  
Triticum Aestivum ◽  
Zea Mays ◽  
Oryza Sativa ◽  
Seed Germination ◽  
Aqueous Extract ◽  
Parthenium Hysterophorus ◽  
Cereal Crops ◽  
Ageratina Adenophora ◽  
Allelopathic Effects ◽  
Artemisia Dubia

Allelopathic effects of aqueous extract of leaves of Parthenium hysterophorus were studied on seed germination and seedling growth of three cereal crops (Oryza sativa L., Zea mays L. and Triticum aestivum L.), three cultivated crucifers (Raphanus sativus L., Brassica campestris L. and Brassica oleracea L.) and two wild species of family Asteraceae (Artemisia dubia Wall ex. Besser and Ageratina adenophora (Spreng) King and HE Robins). Seed germination of all crucifer species was completely inhibited at >2% leaf extract of Parthenium hysterophorus but in other species, except maize, complete failure of seed germination was recorded only at >6% in Triticum aestivum and Ageratina adenophora; at 10% in Oryza sativa and Artemisia dubia. Seed germination of Zea mays was not completely inhibited but it was low at high concentration of the extract. The extract had strong inhibitory effect to root elongation of seedling in cereals and to shoot elongation in crucifers and wild Asteraceae. Leaves of Parthenium hysterophorus may be a source of natural weedicide against Ageratina adenophora which will help to control invasive plants. Key words: Alien invasive; Asteraceae; Cereal crops; Crucifers; Seedling biomass; Weedicide. DOI: 10.3126/sw.v5i5.2653 Scientific World, Vol. 5, No. 5, July 2007 33-39

scholarly journals Contribution des résidus de récoltes à l'alimentation des ruminants dans différentes zones agro-écologiques du Burkina Faso

1999 ◽  
Vol 52 (3-4) ◽  
pp. 255-263
Author(s):  
M. Savadogo ◽  
G. Zemmelink ◽  
Herman Van Keulen ◽  
Aimé J. Nianogo
Keyword(s):  
Zea Mays ◽  
Oryza Sativa ◽  
Burkina Faso ◽  
Arachis Hypogaea ◽  
Zea Mays L ◽  
Pennisetum Glaucum ◽  
Oryza Sativa L ◽  
Arachis Hypogaea L ◽  
Modèle Statique ◽  
Sorghum Bicolor L

Un modèle statique a été utilisé pour évaluer la contribution potentielle des résidus de récoltes à l’alimentation des ruminants dans différentes zones agro-écologiques du Burkina Faso. Les résidus de céréales, comprenant le maïs (Zea mays L. ), le mil (Pennisetum glaucum [L.] R.Br.), le sorgho (Sorghum bicolor [L.] Moench) et le riz (Oryza sativa L.) représentent 90 à 98 % des quantités totales de résidus de récoltes. Ils présentent de faibles taux de protéine brute (Pb : 4,7 % en moyenne) et une faible digestibilité de la matière organique (dMO : 49,2 % en moyenne). Le reste est constitué des résidus de fanes de niébé (Vigna unguiculata [L.] Walp) et d’arachide (Arachis hypogaea L.) qui sont de meilleure qualité (Pb : 12,6 à 15,6 %, dMO : 57 à 61 %) ; ceux du voandzou (Voandzeia subterranea) sont de valeur intermédiaire (Pb : 6,4 %, dMO : 55 %). Avec les quantités de résidus de récoltes disponibles, un maximum de 8, 54, 98 et 76 % des ruminants, respectivement dans les zones sahélienne, sub-sahélienne, nord et sud-soudanienne, pourraient être entretenus pendant toute la saison sèche. Une utilisation optimale des résidus de récoltes pourrait contribuer de manière significative à l’intensification des productions animales, spécialement dans les zones soudaniennes.

scholarly journals Pectobacterium carotovorum: agente fitopatógeno causante de la pudrición blanda en la papa (Solanum tuberosum)

2021 ◽  
Vol 22 (2) ◽  
Author(s):  
Angie Paola Amaya Guerrero ◽  
Mayra Eleonora Beltrán Pineda ◽  
Nadia Catalina Alfonso Vargas
Keyword(s):  
Triticum Aestivum ◽  
Zea Mays ◽  
Oryza Sativa ◽  
Solanum Tuberosum ◽  
Quorum Sensing ◽  
Pectobacterium Carotovorum ◽  
Expresión Génica

La papa (Solanum tuberosum) es un tubérculo de importancia a nivel mundial; es el cuarto cultivo de interés agronómico en términos de producción y área cultivada después del arroz (Oryza sativa), el maíz (Zea mays) y el trigo (Triticum aestivum). Pectobacterium carotovorum es un agente fitopatógeno de la papa que causa la podredumbre blanda del tubérculo, y es considerada como la enfermedad poscosecha más importante, pues genera grandes pérdidas económicas a nivel del almacenamiento. El presente documento pretende dar un esbozo de la biología del patógeno, los métodos existentes para la detección de dicho agente, la descripción del quorum sensing como mecanismo de la regulación de la expresión génica de sus factores de virulencia, el mecanismo de acción del patógeno, el proceso infectivo y los métodos actuales de control.

Distortion of guineacorn (Sorghum vulgare) caused by a mealybug, Heterococcus nigeriensis Williams, in Northern Nigeria.

1961 ◽  
Vol 51 (4) ◽  
pp. 677-684 ◽  
Author(s):  
Elizabeth Harris
Keyword(s):  
Triticum Aestivum ◽  
Zea Mays ◽  
Oryza Sativa ◽  
Cynodon Dactylon ◽  
Northern Nigeria ◽  
Sorghum Vulgare ◽  
Pennisetum Typhoides ◽  
Severe Stunting ◽  
White Tissue ◽  
Whole Plants

Distortion, a severe stunting and deformation of plants of guineacorn (Sorghum vulgare) in Northern Nigeria, has been shown to be caused by Heterococcus nigeriensis Williams feeding on the plants.The symptoms are striking; affected stems are much shorter and wider than normal and leaves are mis-shapen, with irregularly divergent veins and white tissue between the veins. Symptoms in the field vary from small patches of distortion on other normal plants to whole plants affected. The abnormal leaves of a plant with severe distortion are crumpled and remain rolled together. Growth of the plants virtually ceases if the mealybug infestation continues but, in the absence of mealybugs, affected plants recover and produce normal leaves.Distortion has been found in the field, commonly on Sorghum vulgare, Zea mays and Cynodon dactylon, and once only on Pennisetum typhoides and Chloris pycnothrix, respectively, and has been produced experimentally on Z. mays, C. dactylon, P. typhoides, Triticum aestivum, Oryza sativa and Digitaria exilis by transferring mealybugs from affected guineacorn.

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