1. Root exudates from red pine seedlings and their effects on Pythium ultimum;AGNIHOTRI;Can. J. Bot,1967
2. Changes in the metabolism of wheat leaves induced by infection with powdery mildew;ALLEN;Am. J. Bot,1942
3. Liberatión de diverses substances par des graines de légumineuses au cours de leur inhibition;AMOROS;Anm. l'Inst. Pasteur,1964
4. Interelartionships between maize and some rhizoplane bacteria (In Russian.);ARKADEVA;Mikrobiologiya,1963
5. Interelationships between buckwheat and Micrococcus sp. (In Russian.);ARKADEVA;Mikrobiologiya,1963