Isolation and characterization of herbicidal antibiotics

analytical methods antibiotics antibiotique chromatographie chromatography cromatografia espectroscopia rmn feuille germinability graine herbicidas herbicide herbicides hojas leaves nmr spectroscopy oryza perilla frutescens photosynthese photosynthesis poder germinativo raphanus sativus seeds semilla spectroscopie rmn streptomyces technique analytique