Abstract
Pathogenicity and inoculum concentration effects of Clavibacter michiganensis subsp. michiganensis on severity of bacterial canker of tomato
Highlights
Tomato (Solanum lycopersicum) is grown worldwide for its edible fruits
The current study aimed to evaluate the pathogenicity of Clavibacter michiganensis subsp. michiganensis isolates on three different tomato growth stages; and to find the effect of inoculum concentration on disease severity of bacterial canker of this crop
Surveys conducted in various locations of Khyber Pakhtunkhwa (KP) resulted in the collection of a total of 100 tomato samples showing typical symptoms of bacterial canker such as; bird’s-eye-spot on leaves/ stems or/ and fruits, wilted leaves, tunneling and splitting of stem, retarded growth, and necrosis of leaf margins
Summary
Tomato (Solanum lycopersicum) is grown worldwide for its edible fruits. Due to its high nutritive value; tomato consumption is believed to benefit the heart and reduce cardiovascular diseases (Shidfar et al, 2011). There are about 7500 varieties of tomato which were grown for different purposes (Allen, 2008). Regarding the annual production of tomatoes worldwide; it reached 148.26 million tons (MT) in 2013. Pakistan produced 0.57 MT of tomatoes during 2013 Tomato crop is grown all over the Pakistan, and about 58196 hectares areas were grown with different varieties of this crop. Regarding the average per hectare global production of tomatoes; Belgium and Netherland were on top with 5.0×106 and 4.9×106 kg/ ha; respectively. Pakistan holds 142th position with a much lower average production of 9.8×103 kg/ ha
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