منابع مشابه
Mycosphaerella leaf spot diseases
By the end of the 1980s, black leaf streak disease caused by Mycosphaerella fijiensis was present in all continents where bananas or plantains were grown, although distribution in some regions was limited to a few countries. In this presentation, the spread of the disease during the 1990s in several countries and regions, and the important socio-economic consequences are discussed. From 1990 to...
متن کاملColletotrichum gloeosporioides sensu stricto, the causal agent of a leaf spot disease of Schefflera arboricola in Iran
Schefflera arboricola is a flowering plant in the family Araliaceae; its common name is dwarf umbrella tree. It is an evergreen shrub and a popular ornamental plant, commonly grown as an indoor plant. During a sampling in 2015, a new leaf spot symptoms was observed on S. arboricola plants in several greenhouses in the Hamadan province, Iran. Most of the plants were se...
متن کاملEssential Oil of Cymbopogon citratus on the Control of the Curvularia Leaf Spot Disease on Maize
The Curvularia Leaf Spot is becoming more common due to the culture expansion and the low resistance of the cultivated genotypes in tropical regions. Thus, the objective was to evaluate the fungitoxicity of the essential oil of Cymbopogon citratus upon the phytopathogen Curvularia lunata, causative agent of the Curvularia Leaf Spot. There was realized pathogenicity tests of C. lunata in maize p...
متن کاملBacterial Leaf Spot of Alfalfa '
The bacterial leaf spot described here was first recognized on Turkestan and Grimm alfalfa (Medicago sativa L.) in two locations at Madison, Wis., in August 1930. The alfalfa in both instances was in cultivated experimental rows and had been repeatedly splashed bywatering with a garden hose. In October 1931 the disease recurred under similar circumstances at one of these locations, but with the...
متن کاملA Note on ‘Hot Spot’ Hunting in Deep-Inelastic Scattering
We consider the inclusive cross section for jet production with large transverse momentum in deep-inelastic scattering. This process has been proposed as a probe of small-x physics, particularly the measurement of ‘hot spots’ inside the proton. We present a numerical calculation of this process, taking into account a larger phase space. The theoretical reliability as well as phenomenological un...
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ژورنال
عنوان ژورنال: Annals of Applied Biology
سال: 1914
ISSN: 0003-4746,1744-7348
DOI: 10.1111/j.1744-7348.1914.tb05422.x