%0 Journal Article
%T Net melon resistance to Didymella bryoniae according to grafting and potassium levels
%A Silva
%A Edvar de Sousa da
%A Palangana
%A Felipe Campaner
%A Goto
%A Rumy
%A Furtado
%A Edson Luiz
%A Fernandes
%A Dirceu Maximino
%J Summa Phytopathologica
%D 2012
%I Grupo Paulista de Fitopatologia
%R 10.1590/S0100-54052012000200005
%X chemical control of the fungus didymella bryoniae, the causal agent of the disease gummy stem blight in melon, is frequently inefficient; thus, alternatives such as grafting and nutrition must be studied. rootstocks and potassium levels were tested aimed at controlling this disease in net melon under protected environment. the melon hybrid 'bŁżnus ii', ungrafted and grafted onto 'dinero' melon and 'strong tosa' pumpkin rootstocks, was cultivated and inoculated by using the toothpick insertion method with 7-mm mycelial disks from the isolate d. bryoniae dbr 37; for control, only toothpick insertion was used. the plants were subjected to the following potassium levels: 0, 62.5, 125, 187.5, 250 mg l-1. grafted 'bŁżnus ii' melon plants were resistant to the fungus, whereas ungrafted ones were susceptible. the adopted potassium levels did not influence the stem lesion size or the survival of plants.
%K cucumis melo var. reticulatus naud.
%K gummy stem blight
%K nutrition
%K rootstock.
%U http://www.scielo.br/scielo.php?script=sci_abstract&pid=S0100-54052012000200005&lng=en&nrm=iso&tlng=en