Somaclonal variation and eyespot toxin tolerance in sugarcane

agentes nocivos champignon clone clones crops cultivar cultivars cultivo de tejidos cultivos economic plants facteur nuisible formas de descendencia forme de descendance fungi helminthosporium industrial crops injurious factors methode methods plantas plantas azucareras plantas industriales plante plante de culture plante industrielle plants progeny forms pure lines substance toxique sugar cane sugar crops tissue culture toxic substances toxinas toxine toxins