Amaranths ( Amaranthus sp.) are a popular leafy vegetable grown and consumed by resource-poor people in many African countries. Greater awareness of the importance nutritious foods has increased demand consumers for amaranth. Presently, most farmers grow low-yielding local varieties variable seed quality. High-yielding amaranth that adapted to major agro-ecologies eastern southern Africa posses...

beet necrotic yellow vein virus (bnyvv) or rhizomania is one of the most important and destructive diseases of sugar beet (beta vulgaris l.) in the world. this disease is considered as a limiting factor of sugar beet production in iran such as khorasan, fars, west azerbaijan, isfahan and kermanshah. in order to develop of resistant variety, as simple and easy methods for disease control, a germ...

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